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06-17-98 Agenda and Packet AGENDA FILE CHANHASSEN PLANNING COMMISSI( WEDNESDAY, JUNE 17, 1998 at 7:00 P.) CHANHASSEN CITY HALL, 690 CITY CENTEL CALL TO ORDER PUBLIC HEARINGS 1. Amendment to the entire 2020 Chanhassen Comprehensive Plan, including land use, housing, transportation,park and recreation,natural resources, sewer and water. NEW BUSINESS OLD BUSINESS APPROVAL OF MINUTES ONGOING ITEMS OPEN DISCUSSION ADJOURNMENT NOTE: Planning Commission meetings are scheduled to end by 10:30 p.m. as outlined in official by- laws. We will make every attempt to complete the hearing for each item on the agenda. If, however,this does not appear to be possible,the Chair person will notify those present and offer rescheduling options. Items thus pulled from consideration will be listed first on the agenda at the next Commission meeting. CHANHASSEN PLANNING COMMISSION REGULAR MEETING JUNE 3, 1998 Vice Chairman Joyce called the meeting to order at 7:05 p.m. MEMBERS PRESENT: Allyson Brooks, Alison Blackowiak, Ladd Conrad, Kevin Joyce, Matt Burton and LuAnn Sidney MEMBERS ABSENT: Craig Peterson STAFF PRESENT: Kate Aanenson, Planning Director; Sharmin Al-Jaff, Planner II; Bob Generous, Senior Planner; and Dave Hempel, Assistant City Engineer PUBLIC HEARING: CHAPEL HILL ACADEMY REQUEST FOR AN INTERIM USE PERMIT TO ALLOW A MODULAR CLASSROOM BUILDING ON AN OFFICE INDUSTRIAL SITE, A ZONING ORDINANCE AMENDMENT TO ALLOW TEMPORARY BUILDINGS IN THE OFFICE INDUSTRIAL DISTRICT,AND A SIDE YARD SETBACK VARIANCE TO ALLOW A TEMPORARY BUILDING TO BE LOCATED 8.5 FEET FROM THE SIDE LOT LINE, LOCATED SOUTH OF WEST 78TH STREET, EAST OF FRONTIER TRAIL AND WEST OF GREAT PLAINS BOULEVARD, 7707 GREAT PLAINS BOULEVARD. Sharmin Al-Jaff presented the staff report on this issue. Joyce: Are there any questions for staff at this time from any commissioners? Conrad: Yes, Mr. Chairman. Are we, is the applicant here and show us what it's going to look like? Al-Jaff: Yes. There should be. Conrad: Is that what it looks like? Al-Jaff: Yes. Conrad: That is the building? Al-Jaff: Yes. It's currently in Eden Prairie. Conrad: And the dimensions are what? 60 x 40 or something like that? Al-Jaff: Correct. Planning Commission Meeting- June 3, 1998 Conrad: And that's the roof line that staff agreed with. There are all sorts of structures that put — roof lines in that work. Ugly structures, I deal with this and nicer structures. You're comfortable that this is the right one. Al-Jaff: The fact that it is a temporary building. It is the reason why we said okay. They have the building right now in Eden Prairie. They're moving it to Chanhassen. Ultimately this building is, will disappear. Conrad: But you like, again I just want to open up your vision. There are choices to temporary structures so we're comfortable with this? Aanenson: Well I guess I would say that this is what they're asking...because they're currently — using it. We didn't go out and look at a variety and recommend this one. They asked us to move this one because they're currently using it. So I don't think it was a choice. Brooks: And they didn't offer any other types of temporary structures for you to look at? Conrad: But you're comfortable, that's all I'm trying. — Aanenson: Well I think that was the reason why we said in one year they have to come back with a complete site plan. We want to make sure that this stays on track. If this becomes, these are — temporary...moving forward to make a permanent building. Conrad: Now the way the staff report was written, it doesn't tell me that the interim use permit will not be renewed. It doesn't say that. It says we have a sequence to follow. In one year you have to do this. But is it the staffs recommendation that this interim use permit is for 5 years. At the end of 5 years there is no such, they can come back for it but is, you're not making the — judgment on whether they come back for it or not. You're saying, what are you saying in the staff report? Aanenson: That it expires in 5 years. If they want to come back and make an appeal to you, they have that opportunity but it is our recommendation that they're not there in 5 years. Conrad: So they really have this for 5 years and the progress towards getting rid of it is really, there's only one milestone and that's year one with the overall facade. Brooks: Why is it taking them so long? Why the 5 years? Aanenson: We'll let the applicant speak to that. Joyce: If the applicant's here, would you like to address the Planning Commission at this time? — Please step forward. State your name and address. 2 T Planning Commission Meeting- June 3, 1998 Dan Blake: Mr. Chairman, Planning Commissioners. My name is Dan Blake. I represent Chapel Hill Academy. I think I'll first try to introduce Chapel Hill Academy to the City of Chanhassen for those who are unfamiliar. Chapel Hill Academy is a K through 8 school. We've been in existence for about 27 years. Most of that time located in Eden Prairie. This past year we have leased a portion of the space at the old St. Hubert's School and we have worked out an arrangement with St. Hubert's to purchase that property that we think will enable us to, it would be our first permanent home really since, we've always been renting but we haven't moved around a lot but this would be a current home that we could use as it sits now, and eventually expand it to meet our ultimate objective or goal of two classes of K through 8, approximately 450 students. Currently we project about 260 students next year. To answer some of the questions that I heard brought up by commission. The existing building that's proposed is a structure that we currently own and are using in Eden Prairie. That's why we didn't look at other alternatives. However, we believe that the location, as well as the design of the building fit in with the site. If you can picture the back side or the church side of the St. Hubert's building, it's a light brown color up to about a medium brown color up to about 8 or 9 feet and then it has another 3 foot dark brown span with wood siding at the top. This modular building is similar in nature in that it has one type of wood siding for the first about 9 feet and then approximately a 2 to 3 foot kind of a mansard type roof. And we believe that that follows staff's condition to paint that building to match the St. Hubert's building at the height and that band at the top will match extremely well. Why 5 years? Our plan is to move in there 100%this fall for the beginning of the school year. The current building has 8 classrooms. We need 11 this year and so that modular building has 4 classrooms in it so it's got us one extra to meet this year and next year. Assuming we add, our goal is to add a class each year. So that will take care of the next two years. We anticipate over that time we will do enough fund raising to commence an expansion program. We've done some preliminary architecture to verify that the type of expansion, that there's room on the site within the city ordinances to...very limited details of design work with that regard. So that's the last two years we will have a need for an expansion and commence, we anticipate to commence the construction project that takes between 1 and 2 years to complete and that gets us kind of a 3 or 4 year time frame. We asked for 5 years because things don't always go as planned and I'd rather not ask for 3 and have to come back for an extension. If it was important to the Planning Commission, I would certainly agree to a condition that says upon completion of the expansion, that we're required to come back upon completion of that expansion, that we take that temporary building out or that the temporary permit expires and that I'm not going to ask to keep it there _ you know the full 5 years if we don't need it. We don't, our students don't really like that building. It works but it's disconnected from the rest of the classrooms. We want to get it out of there as soon as practical. But we're uncomfortable asking for a shorter time frame knowing that there's a greater chance that we'd be back before you saying please, can we keep it there just one more year because in 5 years we don't think that that will come up. Now could I guarantee that? No. But it's certainly not our plan and we have had significant growth the past few years and we think that our enrollment projections are very reasonable. They're more controlled by us not wanting to grow too fast. The demand seems to be there for the type of education that we're providing and the location is we think extremely appropriate and we're really excited to be a part of the Chanhassen community and bring a school back to that location. Beyond that I guess if you have any questions, I'd sure like to try to answer them. 3 Planning Commission Meeting - June 3, 1998 — Joyce: Thank you very much. Any questions for the applicant? _ Brooks: Yeah, you're expecting 250? Dan Blake: 260. Brooks: No bus service? — Dan Blake: There currently is not a bus service. In the past we have had it and then haven't had it. Currently there is not. It's a fairly organized carpool program. — Brooks: So how much traffic are you expecting in the morning and the evening? — Dan Blake: Boy, I suppose you could assume that they average 4 kids per trip. Per carpool. I don't know if that's a fair average and that's 70 some, you know 60-70 trips. — Brooks: Does that facility and the traffic pattern there set up to handle that kind of traffic flow in and out? Dan Blake: I don't think that's significantly different, not to interrupt your question but I don't think that's significantly different than the way St. Hubert's used it. Brooks: Well maybe I wasn't familiar with that. Hempel: I tend to agree with the applicant. I don't think that's much more significant than — previously... Brooks: Okay. What's the contingency plan if you don't raise the funds to build the temporary — structure? Dan Blake: You mean a permanent structure? Brooks: Yeah. Sorry, yes the addition. Sorry about that. Dan Blake: We go back, we would not, we'd either move and that's the same cost issue, or we would not allow, we'd have to cut enrollment back to fit in the building that we have. We could probably do some remodeling inside. We don't need the sanctuary part where...church. We'll — use that for an auditorium. There's some remodeling we could probably do to get up to about 12 classrooms inside instead of 8. But we don't want to tear that apart. We'd like to keep that auditorium generally like it is and expand beyond that. Blackowiak: Several years ago the St. Hubert's and Chan Elementary students, sixth graders — used the space in the Colonial Center. Have you investigated that option at all? 4 — Planning Commission Meeting- June 3, 1998 Dan Blake: Yes we have. At the time we investigated it, it seemed a very expensive. It was kind of an all or nothing deal as I understood it for the space that was available. And that was quite some time ago. I could not tell you if that space is currently available or not right now. I heard some talk that it had been leased up. But more importantly last year we were on two _ campuses. We were in Eden Prairie and had our 7th and 8th grade in Chanhassen. We found that that to be quite a hardship for our staff and for our students to be split up like that and even if it's just across the street, it's still split up. We really want to be in one building. We think that the small nature of the school, we lose the benefits that we have if we start splitting people. It tends to get smaller. Blackowiak: But...is splitting people up? Dan Blake: Well but they're physically connected. They would lunch together. Gym together. They wouldn't have to go across the street, across the parking lot. Blackowiak: Right. I believe that's what they did before too. They had gym class, I mean basically it was the relocatable but just across the street. I mean effectively. Dan Blake: Well I suppose it could be done. We looked into it because we had to decide, it's pretty expensive to move that building over and it seems like that was a better cost effective scenario than renting space. And to tell you,we had originally looked at putting the modular building on the west side of, east side excuse me. Behind those two houses and we heard a lot from the residents earlier on when the city was going through some of their, the planning seemed better in this general area. That everybody wanted those houses there and so we decided well is there a better place to put it and this little back corner seemed like it was as out of view and minimal impact to the site as possible. Blackowiak: Thank you. Conrad: Connections with the building is how? - .Dan Blake: There will be a covered pedestrian way. Other than that there's not really a physical connection. Conrad: No need for sanitary hook-up? Dan Blake: No. We have to have a pedestrian way to provide that within the building is the way to go. The existing building lays out, there are restrooms right inside the door...where the old church offices were. Joyce: That was my question too. I assume that follows our code? Dan Blake: Yeah, we have met with the building inspector and talked a little, a couple times, met with him on site to decide exactly what needs to be. It's a juggling act. Whether this is one, whether it's an expansion onto an existing building or it's a separate building that connects into, 5 Planning Commission Meeting - June 3, 1998 we kind of laid out what we need to do to meet the code to get some fire protection and things we have to do as well as the... Burton: I'm not that familiar with your...parking lot is basically taking away the one back — there... Dan Blake: We have about 5 times the need for our parking out_there now. So there is...as we look at future expansion we'll have to look seriously at ultimate parking needs and what land we use but currently K through 8 we have 15 to 20 staff people. We have the drop off and parents in and out. The only time we have a significant amount of parking would be an all school program you know two nights a week, or two nights a year or something. Maybe a basketball game, but that parking is more than double what we currently have and... Sidney: One quick question. I couldn't tell from the photos if there were any roof assemblies on this structure. I guess there was concern about that because that might be able to be viewed by the residents to the north. Dan Blake: There are no, there's no equipment on the roof. That equipment is actually is mounted on the outside of the building and it will face, unfortunately yes. The more visible side but it's quite set back from Great Plains. But that's the side it faces. You can see that in the photo. But there's nothing, a slightly sloped roof on top enough for drainage. Joyce: Okay. Thank you very much. Can I have a motion to open this up for a public hearing please. Burton moved, Sidney seconded to open the public hearing. The public hearing was opened. Joyce: The matter is open for public hearing. Would anyone like to address the planning commission regarding this item, please step forward. State your name... Seeing none, I'd like to close the public hearing. Brooks moved, Conrad seconded to close the public hearing. The public hearing was — closed. Joyce: LuAnn. Sidney: Okay, a few comments. I guess to me it seems like a reasonable interim solution to the classroom needs. I agree with the staff report. I would like to see us complete site plan application in one year. I believe that's a very important point. And I'd also like to discuss the, because of the closeness to the neighbors that no other use other than classroom would be... I think it's a good location. It's well screened. It's stated in the staff report and I think it's a good solution overall. I would like to comment about the proposed building alternatives. I like the idea of the Alternative 2...78`h Street and I think that fits in to the area where we'd like to jazz up the frontage on 78`h. So I'll put my vote in for that. — 6 — Planning Commission Meeting- June 3, 1998 Joyce: Thank you. Matt. Burton: I think it's a proper use of the interim use permit. I think that it's a good location. And _ I think my concern was that perhaps the neighbors would not be happy with it and...so I'm just assuming that that is not a problem. Based on... Joyce: Thank you. Ladd. Conrad: I think it's great that Chapel Hill's is in town. I think that's terrific. Interim use permits bother me a little bit because I keep thinking, okay. So when we did this one for that, what's the rationale and I can justify it but it's one of those ones that it still makes me nervous a little bit but that's on an aside I think. Just to communicate, I don't know that we need to do it in our motion but I don't think I'll be here in 5 years. I'd really want to make, I want to make this an interim use. Period. Because I'm not comfortable with it. If we don't let other people do it, so you've just got to make this happen in 5 and if I am here,I just don't think I'd extend it. So I think you've got, you know and again our ordinance allows you to let you ask for that extension. It does so you can't but boy I'd sure, I'd really be, unless there was a great case made, that would be permanent. You know extending it beyond 5 years is a permanent structure and this is not so other than that, no other questions. Blackowiak: Yeah, when you're talking about permanent versus temporary, I read temporary and then I read 5 years and I kind of went, hum. It didn't quite mesh in my mind. I mean I think temporary is maybe under a year or something but 5 years seems like an awful long time. One of my only notes to myself on this was, can we put some sort of drop dead date on this? In other words, if it expires at the end of 5 years, can we say that under no condition can they reapply or something. I guess we can't do that according to Ladd. Which is a worry of mine too because 5 years is not temporary and if they ask for another years in 5 years, and they're just kind of totally avoiding the intent of the ordinance. And as long as we all understand that temporary means temporary and don't come back in 5 years because I don't think you'll find a sympathetic ear. That's okay. I would like to say that there is, as far as I know, there is space over in that Colonial Center and I think that would be a nice option too...relocatable and move over there because you do have a distinct building but a relocationable is a distinct building. I mean regardless if you _ have a colored walkway, they're still distinct. There are no pedestrian facilities, running water that type of thing. You've got to make the change anyway, so whether you cross the street or cross a parking lot is, I don't see much difference. So I would actually kind of push for that option but I guess you already own it so there are certain costs associated with that so I totally understand. Again,please no more than 5 years. Joyce: Thank you. Allyson. Brooks: I have the same reaction as Ladd and Alison. When I say temporary and then I saw 5 years. I would feel more comfortable if I knew we were granting the permit and they had funding in place and this could all be, the addition could happen within 1 or 2 years. I'm sort of uncomfortable the way it stands now. However, it is nice to see the school come alive. To have 7 Planning Commission Meeting - June 3, 1998 — the children in town and to have something going on so maybe it's the best solution under the circumstances. But again I feel like Ladd and Alison. To me 5 years is absolutely maximum and — for me it's actually too much but you know I hope you get your funds as soon as possible so you can build your addition as soon as possible. And that's about it. — Joyce: Good. Not much more to add. Happy that you're in town and using the facility. I've always, I've had my kids go to school over there and it's kind of an eyesore so hopefully you will — get your funds...incorporate everything into the site. I think Mr. Blake had a good point and maybe we can add onto the third item of our motion here that the interim use permit will expire in 5 years or until expansion of the school is completed. I mean if the school is expanded, we'd — like to see that out of there. So if it only takes 3 years for that expansion, we expect that the temporary modular classroom is gone. Otherwise, you know that actually fits in there so...use and use it for something like that, I think it makes sense. That's my comments. 1 guess we could — go to making a motion here... Blackowiak: Well I'll recommend the planning commission approve interim use permit 98-1 — with a variance to locate the structure 8.5 feet from the northern property line with the following conditions, 1 through 8 and on condition 3. Adding the phrase, or until expansion of the school is completed. — Burton: I'd second that. Blackowiak moved, Burton seconded that the Planning Commission recommend approval of Interim Use Permit #98-1 with a variance to locate the structure 83 feet from the northern property line,with the following conditions: — 1. The applicant shall submit a complete site plan application no later than one year after issuance of a Certificate of Occupancy. 2. The wood siding on the temporary building shall be painted the same color"brown" as the — existing building. 3. The Interim Use Permit shall expire in 5 years from the date approved by the City Council, — or until the expansion of the school is completed. 4. The temporary structure shall be used as classroom space only. — 5. The City shall not be held liable for any damage to the proposed temporary building as a result of performing repairs to the existing sanitary sewer line. _ 6. Provision to maintain the existing neighborhood drainage shall be incorporated into the plan for staff review and approval. — 7. Building Official conditions: 8 — Planning Commission Meeting- June 3, 1998 a) The portable classroom and the existing church/school must be altered to comply with building code provisions for wall and opening protection at property lines with the exception of the north wall of the portable classroom. b) Existing exiting for the church/school must be maintained. c) New accessible parking stalls must be provided in compliance with the current building code. d) New construction must meet all current building code requirements. e) Plans must be submitted to the Inspections Division for review and building permit approval prior to the building being moved to the site. 8. Meet with Fire Prevention Division for Fire Code requirements. All voted in favor and the motion carried. Joyce: Then we need a motion on the zoning ordinance amendment. Conrad: I'd make the motion planning commission recommends approval of a zoning ordinance amendment to the office and institutional district by adding Section 20-796 to read as follows, as in the staff report. Number 1. Temporary classroom structures for use by public or private schools needed for temporary use. Joyce: Thank you. And a second please. Brooks: Second. Conrad moved, Brooks seconded that the Planning Commission recommends approval of Zoning Ordinance Amendment to the Office Institutional District by adding Section 20-796 to read as follows: Section 20-796 Interim Uses: 1. Temporary Classroom structures for use by public or private schools needs for temporary use. All voted in favor and the motion carried. PUBLIC HEARING: DESIGN 1 OF EDINA, LTD. REQUEST FOR SITE PLAN APPROVAL FOR A 55,911 _ SQ. FT. OFFICE/WAREHOUSE BUILDING ON LOT 1, BLOCK 2, ARBORETUM BUSINESS PARK 2" ADDITION ON PROEPRTY ZONED PUD AND LOCATED 9 Planning Commission Meeting - June 3, 1998 — EAST OF HWY 41 JUST NORTH OF COULTER BOULEVARD, ALL ABOUT — LIGHTS. AND DESIGN 1 OF EDINA, LETD. REQUEST FOR SITE PLAN APPROVAL FOR A — 52,956 SQ. FT. OFFICE/WAREHOUSE BUILDING ON LOT 1, BLOCK 1, ARBORETUM BUSINESS PARK 2ND ADDITION, ON PROPERTY ZONED PUD AND LOCATED EAST OF HWY. 41 JUST NORTH OF COULTER BOULEVARD,ON THE — LEVEL, INC. Public Present: — Name Address Carrie & Tom Christensen 8681 Alisa Lane Chris Thompson 110 Choctaw Circle Robert Davis 9973 Valley View Road — Thomas Bothun 9973 Valley View Road Bob Generous presented the staff report on this item. — Joyce: Any questions from fellow commissioners? Brooks: I have one. Actually it's kind of a request. In the future can you tell us what these businesses do because that would help me understand if I'm just looking at offices or if they're storing lights. Are they making lights? I mean it would just give me a little more background. — In this case do we know, I didn't, All About Lights, and maybe the applicant can tell me or you can tell me or somebody. — Generous: I can tell you. They, what is it wholesale lights. Tom Christensen: We sell lights to builders. Generous: They're only a portion of it. They have approximately 11,000 square feet of the — 55,000 square foot building so there will be additional tenants in that and that's why it's office warehouse showroom space. The limitation on the building site precludes a lot of distribution in there so you won't have any large warehouse terminal type of congestion. And On the Level is a — building company. Contractors. Brooks: All right. — Conrad: Mr. Chairman. Tell me what you said about the architectural treatment of the corner. The 16 x 16 whatever you said didn't make sense. — Generous: Maybe on the elevations. On each of the corners,this...shown an area where they've used the larger block to help define that corner area. And I just wanted to make sure that they — 10 — Planning Commission Meeting- June 3, 1998 continue it on the rest of the corners of the building. On this elevation for the All About Lights, you don't see the treatment on the northwest corner of the building and that was, I'm recommending that that be continued around that to give some...to the design. Joyce: Any other questions? Burton: A couple questions Bob. These two buildings seem virtually the same and they're right next to each other and I'm looking at the conditions, the recommendations that you have and which recommendations that has an item that the other one doesn't have. I'm just wondering on the first one, number 3 where you talk about the architectural treatment. It's not... Is that intentional? Generous: Well they don't have one of the,they don't have the entrance on the north elevation. Because the second building is L shaped, they have two fronts and so I didn't have to continue mimicking the entrance treatments. And then of course they don't have the additional windows on the non frontage elevation so I dropped those two requirements. Burton: And then the other one was number 6 on the second. Site plan approval contingent upon the city authorizing and awarding public improvement project and in the first one isn't tied into that? Generous: I thought I had it in both. Hempel: It's number 7. Burton: Oh, you're right. I'm sorry. I missed it. I've got to read it more carefully. Aanenson: No, that's good. You're reading it. Burton: I don't have any other questions or anything. Joyce: I have a question Bob,just a general question. Now the Gateway is the developer, correct? Who's the overall developer of this? Generous: Gateway Partners. Joyce: Gateway Partners. So this is separate company that's come in to develop this site? Generous: Yeah, they purchased this lot and they're going to develop the parcel. Or the parcels I should say. Joyce: Is that how we're going to do this whole PUD or Gateway is going to parcel this off... Aanenson: They may. But they still have to meet the same design standards. 11 Planning Commission Meeting - June 3, 1998 Joyce: I was...and I'm not understanding where the sidewalks are here and I'm trying to get the vision of what's going to be behind these buildings and how we're going to incorporate these buildings into whatever kind I'm using for pedestrian access... Do you have anything you can help me out with, that'd be great. Otherwise I'm going to ask the applicant. Generous: Why don't I have Dave. Hempel: This site plan is the All About Lights located on Lot 1, Block 2. Just south of Coulter Boulevard in the cul-de-sac. In conjunction with the city project, we're installing a 6 foot wide concrete sidewalk on the south side of Coulter Boulevard. The terminus at the cul-de-sac. _ That's will tie in further to the east with the north/south street of Coulter Boulevard... Staff has put in a condition or remark in the staff report about the extension of a sidewalk from the building down to the future sidewalk... The other site. Joyce: Dave, wait a second. Now, since we're on this All About Lights. They have the loading areas here. Is that going to be, is that a street back here? Part of the street or what is that? Hempel: I can expand on that Mr. Chairman. The intention is for a shared parking and truck loading facilities in the future with the adjacent parcel. The common curb access swale off of _ Coulter Boulevard here. The driveway will also be utilized by the city for maintenance on the water tower which is proposed directly south of this site. Joyce: Is this a through street then or...? Does it go through? Hempel: The drive aisle will go all the way to the south property line... Coulter Boulevard to the north of the building will be a temporary cul-de-sac...lower trunk highway 41... So essentially the parcel we have east of here will be the mirror type building. Joyce: ...docks pointing this way. Hempel: Correct. Joyce: Okay. Hempel: Elevation approximately the same within a couple of feet. Joyce: Okay. Thanks Dave. Hempel: The other building that's On the Level, on the north side of Coulter. Coulter Boulevard _ is to the south. Again,this is directly across the...from All About Lights. This parcel is...will have it's own...facilities, driveway. There's a pretty good elevation change as you continue to the north...10 feet lower than this driveway. Joyce: How do we connect this site with the rest of the development? 12 Planning Commission Meeting- June 3, 1998 Hempel: From a pedestrian standpoint? Joyce: Right. _ Hempel: I guess at this point you're going to be crossing Coulter Boulevard in this cul-de-sac. There's also grade challenges there as well. The east end of the drive aisle...Coulter Boulevard and continuing to the west towards the cul-de-sac. The cul-de-sac will actually be 6 to 8 feet higher than the building...see how pedestrian moves with... Joyce: I kind of envisioned this project as really being...some campus affect and that kind of thing. I don't know, it's a concern... Okay, thanks Dave very much. Any other questions for staff? No? Okay. Would the applicant like to address the Planning Commission please? Tom Christensen: Good evening. My name is Tom Christensen and I reside at 8681 Alisa Lane in Chanhassen. My business is at 7801 Park Drive in Chanhassen and we have, my wife and I, Carrie, own All About Lights and we've been in the business for three years here in Chanhassen. We want to stay here. Before when we first came up with this project, we basically were thinking of actually leaving because we couldn't find anything. That's why we decided to build the building and because there weren't any other places that we could go and that's why we came up with this project. We did a lot of work on designing the project. We wanted to make it look like a showcase which I think we've done very well at doing so. What I'd like to do is have, there is a couple of things in here that we would like to have Bob Davis, who is our architect, address if we could. Bob Davis: Good evening. My name is Bob Davis. I'm the architect on actually both of the projects that you're combining this evening. I think we want to back up and take each building a little bit separate and go through some of the features of it so that, I hear a little bit of confusion I think from the staff here. Let's take a look at the board that's...can we get the map up on the, can we focus in on... Okay. This is Coulter Boulevard. Possibly a water tower planned here... We're talking about the lot here and the lot here. They're across from each other, north and south. This road, Coulter Boulevard has a cul-de-sac proposed and a future connection of Highway 41. The comment was made about the back here of this lot is a drive to a southern point,city access to a water main. Let's go down to this floor plan, the site plan. Okay. Joyce: This is All About Lights we're talking about? Bob Davis: All About Lights. Southern property. So Highway 41 will be on the bottom. Coulter Boulevard is here. Temporary cul-de-sac. This will be the future connection. Highway 41 is proposed to be lowered about 14 feet from where it is now. The building is 55,000 square feet. This is your Highway 41 frontage. Coulter Boulevard frontage. We're recessing the building back at two points. There is loading docks at these points. There is a drive in door at these points. So we're screening to some extent a truck parked in here at the loading dock by the building extension from Coulter Boulevard. We're then also providing landscaping on the end here. This is the street connection. This is the common driveway between this property and future development to the east. And this will be used by the city as a street to get to the water 13 Planning Commission Meeting - June 3, 1998 tank location over here. Take a look at the elevation. This is the elevation. We've got quite a long elevation. There are five entrances shown here. We're projecting the entrances out 4 feet on — the side and across them and recessing back in 4 feet and then recessing back in another 4 feet... These will be quite prominent. 24 foot high height here. 26 foot here. This is higher for a number of features. It accents where the business is located. This will be the sign band. This — will help screen the, it will screen the roof top air conditioning. The proposed roof top air conditioning will be behind the parapet... In order to not have a very repetitive pattern, I think — your site plan will show that these window sections that are 12 feet wide are not all the same. Some are higher than others and where they're lower down, they're filled in with burnish block so that the pattern of the window shape carries through. The size of the window is different. The — size of the windows also are subtly changed in that the end two panels of these windows are narrower than the rest of them. So that we have a rhythm, a pattern going here with the windows. As you go down the row they're not all the same. They change in height and they change in — width. When we get onto the next building you'll see that we come with a different arrangement and window styles and we think we'll get this variety. The two buildings do have the same color. They have the same materials. They have a little different patterning with those materials. Let — me go through. We're talking about rough block. What's commonly referred to as rock face masonry block. And this material also comes in a burnish pattern, which is a brown finish, which gives you some different color textures again. You can pass these around. And let me — show you some photographs of a building we found that used these colors and these are ones that are being specified as the color. Can we pick these up? I need to apologize. The color reproduction that you got...really didn't, they actually may not, they didn't carry through very — well. Hopefully these color photographs will. This will hopefully help you understand the collection of material. We have two colors of material, a light and a dark which you have in the sample. We have the standard masonry unit and then we have the larger, 16 x 16 unit which is — referred to in the report. We have rock face and we have burnished. And we have there in the pattern I'm using a fair amount of dark versus a fair amount of light. And we found a building that uses the identical colors that we're talking about. We've used quite a different patterning of — this. We're not using the burnish here. We're using the rock face. I think your elevation will show our selection. Bob, I guess I'd like to clarify what you're asking for on the corners. We're talking about this large block now. I'm quite comfortable that we've shown two colors, rock face — and burnished in two sizes. And I think we've got a good pattern and...with variation and I'm comfortable with the way it is. Let's go to your elevation to make sure we understand what — you're asking for. Generous: Where you have these larger showroom windows, you show that you're using...and — all I said is, is suggesting that you continue it around where you have the window treatments. Bob Davis: We intend to do that. The burnish block will be continued between all windows. So _ the windows read visually, architecturally as a continuous stripe, even though there's a lot of things going on... Generous: So this...comes out and the other thing was, to create some type of treatment using the larger block around the window and I'll let you work out some patterning to that that mimics this but on a smaller scale. — 14 — Planning Commission Meeting - June 3, 1998 Bob Davis: Okay. I'd like to suggest an alternate idea but, and then the last one was in reference — to the corner, 16 x 16 large block. Generous: ...in this corner, I'd just continue it around the building so you have it there, there, — there and there and there... Bob Davis: Can I offer a compromise? It's intended to be on the corner here on the side of the windows because we have that modular to work with. I'd like to offer using it on the four outside corners of the building. It is a fairly expensive system to mesh in with the other block. _ You saw...saw and then go back to your pattern. I didn't feel it necessary on the back loading dock to go through that kind of an expensive detailing from the...and that's kind of where we. Joyce: Okay, so let's straighten this out then. We're talking about recommendation number 3. The first item is the outside corners of the building. Is that what we're talking about right now? Bob Davis: Yes. Joyce: Okay. The outside corner of the building should be rock face 16 x 16. You're agreeing with that? Bob Davis: The four corners of the building. Joyce: Each outside corner. Isn't there four corners? Bob Davis: Well there's a lot more because we're talking about...by the loading dock too. Joyce: Oh, I see what you're saying. So what you're saying, what you would propose is the four — corners, the four major corners of the building. 1, 2, 3, 4. North, east, south, west or however you want to explain it. And then you're saying you want as much architectural emphasis put on out by the loading dock. Is that how I'm understanding this? — Bob Davis: Right. I guess it'd be a matter to some extent of where the economics of this go. I think we've got some real good things going with color and block and texture and in fact if you look at these, we're using two colors,rock face and burnish and two sizes. We're using 16 x 16, the standard to make the module and then the 8 x 8 pattern. We've got a lot going. I'm comfortable that we're doing well. I think you'll be very pleased with the color. I think there's some good earth tones here. — Joyce: I guess I need to remind you that part of the PUD agreement was that we treat each facade equally, if I remember correctly as part of the agreement that was reached, performance PUD. I'm just making that note. Do you have any, are those the only concerns you have is that item — number 3? 15 Planning Commission Meeting - June 3, 1998 Bob Davis: Right. I know the report asks for I think...and the owner is comfortable with that request. That would be these... Joyce: Well, on item number 3,just so I'm clear and the rest of my commissioners are clear. The only issue you have is with those corners. You're okay with the north roadway being enhanced by the 16 x 16 inch? Bob Davis: I would rather do that. That is not an entrance. That's a patio area off from the inside which there's no sidewalk to it. There's no drive in front of it. There's no, there's no intention that the public would come into that side wall. I prefer to go another way and let the owner develop that as an outdoor patio showroom for light fixtures. To be accessed from the inside of the building. And when you go out and there would be a patio. Joyce: Talking about an outside area? Bob Davis: Sure. — Tom Christensen: Basically what we're going to do is on the outside of that area, people will be able to walk out onto the patio and...there is a patio here. What we're going to do is we're going to have plants, bushes, going all the way around that so there will be landscape... Joyce: ...come in front of us to do something like that, is that correct or not? ...discussing, it's — not in part of our. Aanenson: I guess we weren't aware of that so. ` Joyce: Yeah. I'm not comfortable in discussing that issue right now. Aanenson: I guess we would like clarification on exactly what the intent of that. Is it retail wholesale space. How much is going to be lit up... Joyce: We're not concerned with that right now. Bob Davis: I'd like to propose we delete item 3 and let the architectural character be developed or modified within the guidelines of what we presented. I think we've... Joyce: Okay, that's something for the commission to consider is item number 3. Is there anything else that we need to look at? Burton: On number 3 of item 3, didn't you say though that that's already doing that? Bob Davis: Well the one item, I think...maybe I didn't clarify my plans... The burnished — block...all the window patterns and the request was and our intention was to carry the burnished block around the side. This side between the windows. So the face would read the same 16 Planning Commission Meeting - June 3, 1998 between windows on both elevations. The intent was, the burnished block would fill in the window section pattern. Burton: I'm maybe not getting it. So you are doing item 3 of number 3 then? — Bob Davis: ... Burton: Recommendation 3 has three items in there and the third item, you're doing it? — Bob Davis: Right. Burton: So it's not an issue. Bob Davis: We just wanted to elaborate... Joyce: Are there any other conditions that you feel uncomfortable with? Aanenson: ...maybe the best way is to correct it in the plan. Then we know we've got it right. When you do the final site plan make sure the site plan has that detail on there... Joyce: ...got lost a little bit there. Do you want to present anything else on this particular site? Bob Davis: No. I think we're...answer questions on this project. Joyce: Okay. Does anyone have any questions on All About Lights? Sidney: Just one question. I was looking on the PUD plan and it looks like there is a spot where they show a development sign for Arboretum Business Park being placed on the corner of this — particular lot. Is this true? Do you anticipate having a sign on your property? Because if that's the case, then I think... — ' - Bob Davis: On the development plan? Sidney: Yes, on the PUD plan. — Bob Davis: My feeling is that probably wouldn't go in until Highway 41 is connected to Coulter. Sidney: Well I'm still saying, in that case it would interfere with your landscaping. The landscaping you have...I'm not sure where the placement might be. Bob Davis: Well I think we can coordinate that with staff and if that's a reality that's going to happen fairly soon, then some of this landscaping should be moved to some other location. Sidney: Yes. And I want to see about adding that to condition 4. That to revise the landscaping plan for the trees and placement of the development sign. 17 Planning Commission Meeting - June 3, 1998 Bob Davis: Okay. Aanenson: What we can do is check with the underlying developer and see if that's still their intent. That's a good point but we can resolve that and see if the developer plans on putting a sign there or not. If they are, then we'll modify the landscaping. Joyce: Any other questions about All About Lights? Blackowiak: I have one question. Currently what type of area for floor space do you have for retail sales over on Park Drive? Tom Christensen: We really don't do retail sales. We are wholesale only. We don't do retail sales. Blackowiak: I've been over there and gone into the showroom and talked about ordering lights — and. Tom Christensen: Are you remodeling your home? Blackowiak: Actually it was my mother. She was just looking for a light. So we went into your showroom. I was just curious... Tom Christensen: ...we don't cater to retail. We don't advertise to retail. Our business is to supply to builders. So basically when a person is building a new home they come to us...buy — fixtures for lighting for their home. Blackowiak: Right. So I as a retail customer could come in and buy fixtures? — Tom Christensen: If you want to, yes. We don't turn them away. Blackowiak: Okay. So what type of a retail or what type of a showroom floor do you have right now space wise? Tom Christensen: 1,800 square feet. Blackowiak: 1,800, okay. So then, and I guess I might be getting ahead of myself a little bit too Kate because right now I look at development standards talk about 20%and if this is 11,000, that's 2,200 square feet of retail, or I don't know. Maybe you don't want to say retail. I don't know why but. Generous: Showroom. Blackowiak: Showroom space. So you're going from 1,800 to 2,200. Would outdoor showroom space be considered in that too? 18 — Planning Commission Meeting - June 3, 1998 Tom Christensen: The outdoor is not, that is not going to be a showroom outside. That is going to be an area where people can go outside...and at night we can have just basically they can see what outdoor lights, landscape lighting can do for their landscape. Blackowiak: Well I'm just kind of worried because you know you've got the 20% restriction and I'm just wondering how that's divided up. You know if you're going to, if you're considering outdoor, which it sounds like you are, that that is part of it and again,maybe I'm getting ahead of myself so. Joyce: I don't even know how to handle it because...I'm not interested in looking at the outdoor portion and I guess...what you see is what you get. Aanenson: But there is still a condition on the showroom part. Generous: They would be able, as part of this building approximately 11,000 of the total building can be showroom. Blackowiak: Okay, so does that limit any one tenant or could one tenant be totally showroom? Yeah, exactly. Generous: Conceivably yes. Blackowiak: Okay. So he could, okay. That's what I was curious about. It was like 20%per tenant or total. Generous: The design standards are written for the entire building. Blackowiak: Okay. And the intent was. _ Aanenson: To be not retail. It was supposed to be an industrial park. There were specific conditions that the Planning Commission and the Council put in that you would be limiting retail type uses and it was a short list but... Blackowiak: Okay, thank you. Joyce: Allyson. Brooks: I guess now I'm confused. We're not supposed to have retail but we have retail, is that what you're telling me? Generous: Not their primary use. They're a wholesaler. Direct to the builder if you will. Brooks: So we consider that different? Because they're selling to different people. 19 Planning Commission Meeting - June 3, 1998 Generous: Yes. Brooks: This is why it would be good to have this in the beginning. I guess that's my only question. _ Joyce: Okay, thank you. We can move on to the second...that's On the Level. — Chris Thompson: I'm Chris Thompson from On the Level. I live at 110 Choctaw Circle in Chanhassen. I've been in business for 13 years. Single family homes. I'll be doing some office out of this and storage area for my business and be leasing the majority of the space to other _ tenants. I think the only question we have is the item regarding the berm on the northeast corner of the building. We're already, I believe and Dave you might, I think you said 8 feet drop to the other property. If we add another 6 feet to that, that might be a possible erosion problem and I don't feel the berm is necessary...trees. Joyce: Dave, do you want to discuss that item. — Hempel: Mr. Chairman, I can address that. The area of the berm that I was recommending was back in this triangular section. To try to break up the mass of the building and also some — screening from potentially Highway 5 which will actually be about the same elevation as Highway 5. It is quite a ways away but if you drive down Highway 5 now, you can see quite a distance... The area was right back in here... — Joyce: Is there any question about erosion? Hempel: As the grading plan has it all flat. The slopes are...the property line here. 3:1 slopes are out here. This whole area is basically flat as proposed in the grading plan. You also bring the grading back up to lessen the slope... It's just an idea to try and help break up the view from — Trunk Highway 5. Chris Thompson: It isn't a big issue. The other thing too is, the office complex that would be — going on the adjacent lot would also be blocking that view from Highway 5. Hempel: They'll be quite a bit lower. ...grading plan for the adjacent site but it is quite a bit lower. With a large building, 24 feet, it may help screen some of that. We won't know until we actually see what comes in. — Joyce: Okay? Chris Thompson: Okay. Bob Davis: In case you're forgotten, I'm Bob Davis. If you look at it, it's across...Coulter, TH _ 41 and Highway 5. All About Lights is on this lot. We've now gone across the street to this lot here. The subject question was berming back here in the corner. It was our understanding that this lot in the corner was saved for a major client, a large size and that property we anticipated to _ 20 — Planning Commission Meeting- June 3, 1998 screen this loading dock and we had oriented the loading dock...corner away from TH 41 and away from Coulter. Let's go then to the floor plan here. To pick up the orientation again. — Coulter, cul-de-sac, Highway 41 and this is the adjacent property to the north. We have...we have an L shaped building. The loading dock ends back in here so we are protecting it from the _ street here...the screening of the loading dock. Here again we're bringing out the building...part back here. Half of it's screened already from the building side. We're using the same colors. We're using the same materials. There are some differences in these buildings. We pick up the elevation... If you look at A3, the building on the... You can see the window pattern is different — than the other building,particularly the corner window has a decorative pattern to it and the, if you go back to the southern length, you see the end window on each end of the building has a decorative pattern. You see this window here on the corner has quite a different pattern. These — windows then are the same width but they're a different pattern than the other building. These windows are lower the backs at the other end of the building on the south elevation. We pick up — a decorative window on each end of the building. The entrances are quite similar in both buildings. We again use the 8 x 8 and 8 x 16 and 16 x 16 pattern of block. Any other things we need to pick up? I think some of the elevations were carried over, subject to carry over from the other building presentation so I think I'll go onto questions then at this point. Joyce: Okay. Any questions regarding On The Level? Burton: I have a question for staff actually. It's sort of the same question I asked earlier. Why, to me, to my untrained eye these two buildings are virtually identical and the one building has — this corner treatment and you suggested...corner treatment on this one you don't. I think that would be noticeable... I don't know if the intent is to make them look different or if you'd like them to look the same or why...why you want it on one but not the other. Joyce: Your intention is to? — Generous: To continue that same condition. Joyce: Can you help us out here Bob? Bob Davis: Well our intention is that that pattern would be on this corner, this corner and this corner. The three street corners. Maybe you can clarify. Are you asking for the other three — corners? Generous: Yes. — Bob Davis: I have not shown that...intended to put it there. Generous: That was the, on both of them would be the same idea that you continue every outside corner. Bob Davis: Okay. That may be the only difference we have. This is about...area back here but there's, I think there's about a 14 foot drop in grade from this somewhat flat area down here. 21 Planning Commission Meeting- June 3, 1998 That was...didn't think he wanted to grade the grade, actually this is on an adjacent property, the 14 feet. Another 6 feet higher adjacent... Hempel: ...recommending an isolated berm. Undulating berm out in this area in here. A spot berm. Undulating with landscaping on top of it to try and break up... landscaping here on top of the berm. Not a continual berm along the whole back corner. Bob Davis: I think you're saying you're comfortable with that. Chris Thompson: Correct. — Bob Davis: Now we'll just ask for any questions. Joyce: Okay. Anything else from anyone? I'll get back to my original question. Have we decided how we're going to pull a sidewalk out to the boulevard here? Bob Davis: I don't think we have but I don't think, the condition is we need to do it. The sidewalk appears to go on the south side of the road. I think we're talking about crossing over the grass, what would be the boulevard between the curb and the parking with a length to get — across to the sidewalk to the south. Joyce: Excuse me, are we going to have a sidewalk on both sides of Coulter Boulevard? — Hempel: Mr. Chairman,just one on the south side. Bob Davis: There's a sidewalk on the west and south side of the building so my suggestion would be, I think we can agree and accept the language that we need somewhere a link for the person walking along the sidewalk to cross over the grass area and get to the sidewalk proposed — on the other side of the street. Where that goes I think staff and engineering will work out. Joyce: Thank you. Okay, thank you very much. Appreciate it, thank you. This is open for a public hearing. Can I get a motion please to do that please? Items 3 and 4 are open for a public hearing. Would anyone like to address the Planning Commission at this time on either of the, All About Lights or On The Level,please step forward. Seeing none, may I have a motion to close the public hearing. Conrad moved, Sidney seconded to close the public hearing. The public hearing was closed. Joyce: Thank you. Allyson Brooks. Brooks: Well, I want to say that even though we're sort of debating the retail or retail issue, I do like the idea of keeping the business in Chanhassen. You know I think we really need to promote that and respect that. The buildings are okay. In terms of corner treatment where the loading docks are, I guess I don't, I mean it would be nice but I don't have a big issue with that because — 22 — Planning Commission Meeting - June 3, 1998 this is a loading dock area. Other than you know in the future if I could just get the information on what the businesses are again because of the All About Lights, that would be great. Other than that, oh the other thing I also was going to say was, Kevin I don't think you're going to get your campus feel. I don't see it coming your way. Joyce: I've had a problem with this development... _ Brooks: I think it's a pretty straight forward office industrial park. But however, other than the comments I just made, I don't have any other problems with the project. Joyce: Thank you. Alison Blackowiak. Blackowiak: I guess I really don't have much to say. No, nothing I guess. Joyce: Do you have any problems with, ...contention with All About Lights as far as, well both of them because... The rock face situation. Blackowiak: I think that. Joyce: The suggestion is to have it on the four corners. Blackowiak: Yeah. I would say, at a minimum on the four corners, and even each outside corner I don't think would be that much more expensive. You're talking about an 8 x 8 inch block versus a 16 x 16. I mean the multiples are there. It's not that big a deal to take two 8's on and put a 16 in so I don't buy the saw in argument really. So I really don't think it would be that much of a difference. Again, at least at a minimum four corners. Preferably each outside corner. And the berming. I guess we have to do both don't we. Are we talking about both of these right away? Joyce: Yes, we're talking about both. We'll have two motions but yeah. ' • Blackowiak: Okay. Then I do want to say on the On the Level. Joyce: I'm sorry. Allyson, did you want to make a comment on the second one at all? Should I come back to you? Brooks: Oh, on the berm. I think we should go with the berming idea. Joyce: I apologize for that. Brooks: That's fine. I should have... Joyce: Thank you. 23 Planning Commission Meeting - June 3, 1998 — Blackowiak: Yes, I agree. And if we're going to talk about On the Level too, then I agree that — we do need some type of berm undulating from, I realize there might be a difference in elevation but we don't know when that corporate person will come in so I think in the interim we have to have a berm there and fully support that. — Joyce: Thank you Alison. Ladd. — Conrad: I have nothing else to add. I do like, for big buildings these are, I like the design. I think staff report's fine. I think the berming on the second issue makes some sense to me. I like it. When you take a look at the elevation, the other, the two other street and south elevations are — quite nice and then take a look at the other elevation from the loading dock and I think it's done nice inside. I think Bob commented on the corners. I have to go with Bob's recommendation on this unless the applicant can come in and give us a specific reason cost wise why it shouldn't — happen. I think it's a nice touch. I think it will help in some areas that possibly need some help but other than that, I think it's fine. Both of them... Joyce: Thank you. Matt. Burton: On the All About Lights project, I guess the only real issue here that recommendation 3. — And on the first question, 1 think they've agreed it'd be the treatment on the four corners on the first item so that doesn't seem to be an issue. The only one that's really an issue is the second one above the doorway and on the third one they said they're already doing it. On the doorway, I — don't really have a problem if you left it the way it was. Then the only other comment on that one was I suspect the retail in your showroom issue, I don't really believe is before us so I think, it seems to me it's more of a showroom but I guess it's not really an issue here. Then on the — second building, the On The Level building. As long as we have the condition about the corners, and I would limit it to just the three. And on the first one, it mentions the four corners...not the — loading dock corners. And I guess with those items, I was fine with it. Joyce: And...on both All About Lights and On the Level. You're talking about both buildings — on four corners? Burton: I think that the On the Level building really needs to have the three. — Joyce: Oh, the three corners. Okay. — Burton: Yeah. And then on the berm issue, I would agree with the staff recommendation of the berm. Joyce: LuAnn. Sidney: Well I like the design of the building. I think that architecturally it is very pleasing for _ that type of building. I think it was well designed. I agree with Ladd's comments that I'd like to have a condition to include all corners in the treatments that Bob is suggesting. The reason I say that is because for the PUD we have design standards. We're looking for a higher design — 24 — Planning Commission Meeting- June 3, 1998 standard for these buildings and I think you should at least, as a commission, I'd like to keep the four corners in this condition to City Council. They might tear it down or might agree with it. But I do think that it does add more interest to the building and as Bob has recommended in the staff report. I guess other than that, berming is fine. I agree with the comments about that. I'll _ just point out then concern about that sign and then the impact of Highway 41 on any landscaping that might be coming on the development. I'm not sure when that's going to happen. It may never happen in my lifetime but it might wipe out all your trees if they start grading so you might put that into consideration. Joyce: My comments basically echo most of what the commissioners have said. I don't have a problem with either project. I will probably suggest that you leave in the condition number 3 and if you feel strongly against that I'd definitely bring it up to City Council. I agree with Ladd that if there are some economic factors that you can show that makes sense as to why you shouldn't have the entire building have the same architectural design...please bring it up to the Council but I'm comfortable leaving it as a staff recommendation on that. I also agree with Dave. I think we need a berm in there. I know the view shed. You can see right through almost to Highway 41. Who knows when the rest of it will be developed. So I'd have to agree with the staff in that regard too. The only issue that I do have and it's a general issue is, I had a higher expectation for this development to be perfectly honest with you. I really did. And it's not, I don't see it coming along. I thought we'd have more sidewalks. It's be more integrated and I just, I don't like the way it's kind of being piece mealed put together. As a planning commissioner I think we should have a vision of what this is going to be and I hate to use the term campus feel but I think we're losing it here. I think we're getting just a bunch of businesses. It's going to be a business park and that isn't what I bought in on as far as the PUD. I'm just making that statement. That's the way I feel about it and I'm hoping that other project will come in and we can try to integrate this development into something that is integrated rather than just pieces of businesses all over and they're just a business park treatment. So we need two motions here to send this up to City Council. We'll start with the All About Lights. Please make a motion. Conrad: I make the motion that Planning Commission recommends approval of Site Plan 98-10, All About Lights prepared by Design 1 dated 4/30/98 subject to the 14 conditions of the staff report. Joyce: Thank you. And a second please. Blackowiak: I'll second that. Conrad moved,Blackowiak seconded that the Planning Commission recommends approval of Site Plan #98-10, All About Lights, prepared by Design 1, dated 4/30/98, subject to the following conditions: 1. The development must comply with the Development Design Standards for Arboretum Business Park. 25 Planning Commission Meeting - June 3, 1998 2. The applicant shall enter into a site plan agreement with the City and provide the necessary security to guarantee erosion control, site restoration and landscaping. 3. The developer shall incorporate the following architectural details: 1) each outside corner of — the building shall use rock face 16 x 16 inch CMU-1, 2)the north doorway shall be enhanced through the use of rock face 16 x 16 inch CMU-1 in proportion to the other building entrances, and 3) burnished 8 x 8 inch CMU-1 shall be used between the showroom windows — on the north end of the building. 4. The applicant shall revise the landscaping plan to include two overstory trees in each of the — three sodded areas in the rear of the building. 5. All driveway access points shall be constructed in accordance with the City's industrial — driveway detail plate no. 5207. 6. The city's boulevards must be restored with sod. — 7. Site plan approval is contingent upon the City authorizing and awarding of public improvement project no. 97-1D for Arboretum Business Park 2nd Addition and recording of _ the final plat for Arboretum Business Park rd Addition. 8. Detailed storm drainage calculations including drainage area maps for a 10-year, 24-hour — storm event shall be submitted to the City Engineer for review and approval prior to issuance of a building permit. 9. Connection to the City's utility system shall be prohibited until the city's utility lines have been tested and accepted by the City. The sanitary sewer and water lines and storm sewer on the site will be privately owned and maintained by the property owner and not the City. The — contractor will be responsible for obtaining the appropriate sewer, water, and plumbing permits from the City's building Department. Cross access easements for the utilities and — driveways shall be dedicated over the lot. 10. The site plan shall be modified to incorporate sidewalks out to Coulter Boulevard at a — location to be determined by the applicant and staff. 11. Refer to Utility plan. A post indicator valve must be added to the 8 inch water main going — into the building. NFPA 13 1991 Section 4-5.1.1.7. 12. The post indicator must have tamper protection which is connected to the sprinkler system _ monitoring. Chanhassen Fire Department/Fire Prevention Division Policy#40-1995. 13. Revise the parking on the Site Plan to comply with the building code. — All voted in favor and the motion carried. 26 — Planning Commission Meeting - June 3, 1998 Joyce: That has been passed and will go to City Council on June 22"d. The second motion is for the On the Level. — Brooks: I move the Planning Commission recommends approval of Site Plan 98-11, On the Level, Inc.,plans prepared by Design I dated 4/30/98 subject to conditions 1 through 13. — Joyce: Thank you. Is there a second? Blackowiak: Go ahead LuAnn. _ Sidney: Okay. I'd like to include condition 3 from the previous motion. Joyce: Why don't you just add that down as,add the language and put it down as condition 14. Make it condition 14. And we'll add that language. Brooks moved, Sidney seconded that the Planning Commission recommends approval of — Site Plan #98-11, On the Level, Inc., plans prepared by Design 1, dated 4/30/98, subject to the following conditions: — 1. The development must comply with the Development Design Standards for Arboretum Business Park. — 2. The applicant shall enter into a site plan agreement with the City and provide the necessary security to guarantee erosion control, site restoration and landscaping. 3. All driveway access points shall be constructed in accordance with the City's industrial driveway detail plate no. 5207. — 4. The applicant shall incorporate an earth berm in the northeast corner of the site adjacent to the truck loading dock area. The berming area shall be up to six feet in height with landscaping of additional conifers to help to break up the building mass. — 5. The City's boulevards must be restored with sod. 6. Site plan approval is contingent upon the City authorizing and awarding of public improvement project no. 97-1D for Arboretum Business Park 2nd Addition and recording of — the final plat for Arboretum Business Park 2"d Addition. 7. Detailed storm drainage calculations including drainage area maps for a 10-year, 24-hour — storm event shall be submitted to the City Engineer for review and approval prior to issuance of a building permit. — 8. Connection to the City's utility system shall be prohibited until the city's utility lines have been tested and accepted by the City. The sanitary sewer and water lines and storm sewer on the site will be privately owned and maintained by the property owner and not the City. The 27 Planning Commission Meeting - June 3, 1998 contractor will be responsible for obtaining the appropriate sewer,water, and plumbing permits from the City's building Department. Cross access easements for the utilities and driveways shall be dedicated over the lot. 9. The site plan shall be modified to incorporate sidewalks out to Coulter Boulevard at a location to be determined by the applicant and staff. 10. Revise the parking on the Site Plan to comply with the building code. 11. Meet with the Inspections Division plan reviewer as soon as possible after approval to begin the building code plan review process. 12. Refer to the Utility plan. A post indicator valve must be added to the 8 inch water main _ going into the building. NFPA 13 1991 Section 4-5.1.1.7. 13. The post indicator must have tamper protection which is connected to the sprinkler system monitoring. Chanhassen Fire Department/Fire Prevention Division Policy#40-1995. 14. The developer shall incorporate the following architectural details: 1) each outside corner of the building shall use rock face 16 x 16 inch CMU-1. All voted in favor and the motion carried. — PUBLIC HEARING: RSS/PERMA GREEN, INC. REQUEST FOR A CONDITIONAL USE PERMIT FOR ALTERATION OF A FLOOD PLAIN,AN INTERIM USE PERMIT SITE PLAN REVIEW TO ALLOW A GOLF IMPROVEMENT CENTER/DRIVING RANGE/OFFICE/CLUB HOUSE AND VARIANCES TO THE SIZE OF BUILDING AND HOURS OF OPERATION AND A CODE AMENDMENT TO ALLOW AN OFFICE/ CLUBHOUSE TO BE LOCATED SOUTH OF THE INTERSECTION OF GREAT PLAINS BOULEVARD AND TH 212 ON PROPERTY ZONED A2,AGRICULTURAL ESTATE DISTRICT, RSS GOLF IMPROVEMENT CENTER. Public Present: Name Address Tom Braman 8040 Stevens,Bloomington, MN Chris Bixler 3179 Devon Lane,Mound,MN Jeff Helstrom 8276 Scandia Road,Waconia, MN David Albright 7814 131St Street West, Apple Valley, MN Kate Aanenson presented the staff report on this item. 28 Planning Commission Meeting - June 3, 1998 Joyce: Are there any questions for staff? Blackowiak: Is this going to have a course on it? Aanenson: No. It did when it originally came in. — Blackowiak: I was questioning about the Corps permit. — Aanenson: Originally it had over 3 acres. We've got that reduced down and that was the... driving range. Conrad: It's currently being farmed? Aanenson: Correct. — Conrad: And the property to the northeast is what? Is that being farmed too? Right next to 169 or whatever that. Aanenson: To 101? Right immediately to the east where the DNR wetland is, is part of the — wildlife... Conrad: To the east is what, did you say? Aanenson: Oh, I'm sorry to the east. That's also...the existing home on the other side... — Conrad: And our vision of this land Kate, could be farmed? Our vision it could be farmed? Aanenson: Well, it can remain an agricultural use. Our comprehensive plan originally left it — only as open space. But if someone were to come in and try to do something...it could just be farmed in A2 which is a use of the property. It also, the A2 district as I indicated does allow a couple of other things. Either conditional or interim use and the golf and driving range... Conrad: So our vision is open space but to be open means somebody, we'd have to buy it then? — Aanenson: Correct. Conrad: Our vision could be agricultural and a golf range could be included in that? Aanenson: Right. Conrad: And our vision could be large lot, which is 1 house per 2 1/2 acres. Aanenson: Correct. Conrad: So this. 29 Planning Commission Meeting- June 3, 1998 Aanenson: Actually outside the MUSA that would be 1 per 10. Conrad: 1 per 10. So this vision on this site, huh. There could be one house. Aanenson: Under the Bluff Creek overlay district that's coming in, what impact would that have on this site? Aanenson: The reason why this wasn't included in the Bluff Creek is because this is upland and the Assumption Creek and that wetland are a high value wetland. Unique as far as overall aquatic diversity and so what happens on this property, the drainage would affect the water quality. Joyce: So this is not on the overlay? Aanenson: It is,but it's all in the primary, a lot of it is in the primary zone. But again if you do a density transfer out, you'd have to find it somewhere else to replace it. Joyce: I guess I'm tagging along with your question Ladd. Is this in the primary zone of the overlay? This project right here? Aanenson: Yes. But if it's entirely within the primary zone, then again it went back to either we _ acquire it or we have to give a variance. That was the attorney's opinion because it'd be...a taking. Blackowiak: Unless it remains agricultural. Aanenson: Correct. Blackowiak: I mean that is an option too. Acquire for, or leave it agricultural. I mean couldn't we have three options? Acquire, interim use, agricultural. — Aanenson: Well, the interim use is like a conditional use. You can only attach conditions to mitigate the impact. So you'd have to allow...and attach whatever conditions or allow the...if you feel like you need to do that to mitigate the impact. There was a lot happening when we first saw this. We confirmed that there was a lot of activity...what we've seen in the past in Chanhassen. I'm not saying those sort of activities don't happen throughout the metro area but we were concerned about that and I think we...applicant to try to resolve some of those. Conrad: So every year Kate, this land will be flooded more than likely? Aanenson: You know that, it has flooded twice. Conrad: So not every year? 30 Planning Commission Meeting- June 3, 1998 Aanenson: It would be seasonally and that's what we're saying, if it's a regular occurrence then we're saying it doesn't make any sense. I guess part of that is up to the applicant for them to decide what's the replacement but we are concerned if it's continually washing into environmentally sensitive areas, then I think we need to...adding extra sand and some of the other sediments that would be...fixtures as Dave indicated in his, or poles or some of the other equipment that's washing out, that would be a concern too. Conrad: And what is the permit that they would have to get from the DNR? Is that just a permit? Aanenson: Well what they need to do is define the flood plain line. Establish that. We have a different elevation. It's actually a Zone A which means undefined. They've come back with the numbers that they believe that...and we believe it's probably somewhere pretty close but legally right now the FEMA map says it's a Zone A which means it has not been delineated. Officially registered with...elevation but we believe it's probably pretty close. We're...to go through that process. _ Conrad: How do I get a handle on whether this is good for the Bluff Creek corridor and the downstream or river or not? How do I, it's probably a better use than farming. Aanenson: We struggled with that exact issue. Our first wish was to buy it. Yeah, that would be nice. To leave it the way it is. Conrad: But how do I, how do I review it Kate so that it doesn't get worse than it currently is. Is there a standard? Is there a, I think as we have drainage issues we're improving everything. In every area we have in Chanhassen, I have a real good feeling, even though we're developing... improve things when we're developing. I think we have a handle on how we do that. I don't have a handle on this application right now to know that the water quality, especially into Assumption Creek, is going to be maintained. So I guess if you don't have a way to give me to review that... Aanenson: We don't. All we can say is that we will monitor the creek annually... drainage that would wash some of the, that's where it's going to be draining... Conrad: And who's telling me this is a net benefit? Is somebody on staff telling me this is a net benefit to the environment? Aanenson: No. Conrad: Okay. But you haven't, on the flip side you haven't said it's a detriment to it either. Wildlife...wildlife from water quality. Different issues here right now. Aanenson: We're saying we need to monitor it and that's one of the conditions that we need to monitor. If they're not meeting it, then we need to bring it back before you and add additional conditions. That's our reason for revoking an interim use permit. If they're degradating water quality. 31 Planning Commission Meeting - June 3, 1998 Brooks: Ladd, can I ask you a question? Do you think this, are you saying that you think this is better than agricultural for water quality? Conrad: yeah, it could be. Brooks: What about natural resources? — Conrad: Could be a problem, yeah. Well for sure it's a problem. For wildlife. It could be a problem. — Brooks: More of a problem than agricultural scenarios? Conrad: Say it a different way? Brooks: Well...think the golf course is going to have a worse affect on wildlife than keeping it — agricultural. Conrad: Yes. — Brooks: Okay, because when you said you thought it was better than keeping it agricultural. You just meant water quality? — Conrad: Yeah. Brooks: Okay. Conrad: I'm talking about chemicals and fertilizer and what have you... If you think this site — can have agricultural on it and they can farm it and they can put the chemicals on it that they want, and the challenge for this group would be to say, can we improve it over what has been the use. Brooks: Or are you just putting different chemicals on? — Conrad: You know it will resolve some issues in my mind if we, if I can get a handle on that but I don't think anybody's going to be able to reassure me... Burton: How do you define...herbicides or organic fertilizer and it looks to me like they would be able to use...herbicide and pesticides... — Aanenson: Yeah, and so what they're saying is once they get their turf established, they're going to... — Burton: Because there's chemical fertilizers... 32 — Planning Commission Meeting- June 3, 1998 Aanenson: Oh, I'm sorry. I'm talking about the storage. — Burton: I'm talking about the application. Right now your recommendation 15 is that chemical fertilizers are prohibited in the flood plain. — Aanenson: Oh, I'm sorry. That should say the storage of. Burton: But that's in number 8. Storage is 8. It says the storage and maintenance equipment and chemicals shall be out of the flood plain. And 15 it just says the chemical can't be used in the flood plain... — Aanenson: ...pulling it all together so I'm not sure. Burton: Yeah, and I was trying to figure out... Aanenson: Well I think chemicals and fertilization is an issue... U M Joyce: ...Kate, is the applicant also the owner of the property? Aanenson: No. They may be buying it but they're not. — Joyce: They have an option for it or? — Aanenson: You can ask them that,but somebody else owns it. — Joyce: Okay. Where is, what is, I mean where is golf and driving ranges a permitted use? Aanenson: It's a conditional use, golf course in A2. Driving range an interim use in A2. Joyce: So it's just an interim use, it's always an interim use? — Aanenson: Yeah. Or it could be a conditional use and golf course. Could be a conditional use and a driving range is an interim use. — Joyce: ...in town it's got to be an interim use,correct? Aanenson: That's how we envision it. It would be a short term, until we brought urban services O EM out similar to like Swings. That was the original thought. Joyce: On the code amendment... — Aanenson: Well again, what they wanted to do is a pro shop. You know a place where you can sell beer. — 33 Planning Commission Meeting- June 3, 1998 Joyce: I understand that part of it but like now, what are we doing up at Bluff Creek? What do they have? Do they...? Aanenson: Yes. — Joyce: So we're allowing Bluff Creek to. Aanenson: But that's again a full fledged golf course... That was a long time ago. I'm sure before a lot of the standards... Joyce: I guess I'm trying to, there's a code amendment... So another golf course pops up somewhere... Aanenson: I golf course doesn't have the interim use standards. Joyce: Okay, so this code amendment's for the interim use then? — Aanenson: Correct. Joyce: Thank you. Now I'm on tract. Aanenson: Okay. Now we're on the same... Yes, this is for the interim use...for golf driving — range. Joyce: Okay. Why don't we have the applicant present to us at this time. Please step forward and state your name. Chris Bixler: I'm Chris Bixler. I'm one of the owners of the RSS Golf Improvement Center. — Jeff Helstrom: And I'm Jeff Helstrom. Chris and I are going to be partners. We have purchased the land on a contract from this gentleman over here. We do have a vision for the property and — our vision is definitely environmental. I mean we've thought about that. We've thought about what this property looks like now and what the use is now and what we can do to this property with the uses that we're going to outline to you. Are any of you golfers? Okay. So I mean you've played golf courses and I think if you've played some of the nicer golf courses you've seen that they can really do some good things with the land that does have some wetlands and they can preserve those areas and we feel with the plans we've put together does just that and we've also outlined a fertilizer and a weed control program that's strictly organic fertilizers. It would be, you know somehow it would be applied in the flood plain. However, at times of year _ that they'd be applied typically would be after any flooding had occurred because there's normally you put that first application down at the end of April or beginning of May. So it's just something to consider that we can time our application to prevent runoff. You know we don't — want to spray weeds when it's going to rain. The time of application, you wait until a time when it's going to be dry for a couple days and you spray the weeds selectively. And that's, you know those are just things that we can do as a smaller operation that a farmer may not do. They're just — 34 — Planning Commission Meeting- June 3, 1998 going to go out and they're going to spray whatever they're going to spray normally whenever they're going to spray it. So there is the possibility that you could get some runoff there but we -- feel that we can prevent that. You know Chris and I are here because we both love golf. I'm not in the golf industry now and neither is Chris. I own my own landscape company. We have a office warehouse in Corcoran and so I've been playing golf, and Chris and I have known each other for quite a while and we golf together and we love golf and always talked about getting into the golf industry. And our vision for what we wanted to do wasn't to open just a driving range where you just go and hit balls. We really wanted to open a golf learning center where people '— can hit balls. Play some shorter holes. Work on their sand game. Their chipping game. All the different things you wouldn't necessarily get at every driving range. In fact it's really hard to find where you can do all of those things at one place. So you know our vision together was, you know we want to do something different. We want to do something really nice and we want to be able to put our money into the facility and to do that, you know we needed to find a property that didn't cost a million bucks. And one thing that came to mind was well, let's get something that's going to flood. Because you know...flooding but in the spring when we're not really going to be hitting balls so if it floods, you know we can pull everything up and sit back and wait and _ the actual structure, the home and that is not in the flood plain so we feel that that wouldn't be as much of a problem. So we talked about that and we looked at this land and we really thought that we put together a plan that you know utilizes the space. It lets us buy a piece of property that financially we can afford, and let's us put the money back into the learning thing and creates an area that you know people can bring their families and have some fun and not just go you know bang a bucket of balls. We talked a little bit about the winter part of it. This is a really integral part of the plan that we also want an area that people can hit full shots and in the winter. And the only way to do that is to have you know a range that's long enough, say 185 yards probably to hit a reasonably full... and that really has to be outside. You can't hit a...185 yards long feasible so we thought about it and thought it and we started testing some things and we've got this, a net system that literally both covers the ground and we'll talk about that a little bit more later. But it collects the balls and then we retrieve them and then people hit from a small dugout area that's heated. The face of the dugout area is open. So you're hitting out to this area that's covered with our sloped net collecting balls and you can literally hit full shots year round and not...from any other range in the Twin Cities, or really any other range in the country that we know about, and . that's the reason that we said we need the net and that we need the lights because I don't know if you've gone to any golf...but a good percentage of their business is done in the evening. And if we can't be open in the evening in the winter, it's tough to get just people who want to come there in the day. So what we're really looking at is just, we put together a lighting plan that we just completed a couple of days ago that would light just the area and we can talk about that a little bit more later. But you know we'll light that area. ...the balls and people can come out there year round and have a great time and you know hit balls and come out in the winter and the summer and do it too. And we just feel it's really a, it's a great plan and we want to talk to you and put together a plan that you can monitor and we can you know keep this property, or make this property better really than the use that it has now. Chris Bixler: Also I guess a couple other things. I've lived in the area my entire life. This area, in my mind, in my knowledge of the golf business. I've been...golfer for probably 20 plus years. Essentially over 25 years, if you can believe it. This area needs something like that. A good 35 Planning Commission Meeting- June 3, 1998 quality practice facility...golfers. We are a family oriented center. We're focusing on service for every customer. Not just the good golfers. We want kids, beginners to come to our place. Enjoy — themselves and... Owning and operating a range has been a dream of mine for about the last 10 years. I've been trying to figure out a way how to get a full shot in the winter time and how to collect that ball in the snow, rain and sleet. The elements. Our net system takes those elements — out of the picture. As far as snow, the snow will fall right through it. One other thing about the net. The nets are above the ground. So if you're worried about small animals running into the — net, I think we've handled that issue. As far as raising them and having the gates on the range so that if some animal does get stuck...physically go take it out and release it. We've put in gates and stuff like that to manage that. If there is any birds that fly into it, we will be able to get them — out... Also, like Jeff said, there is no other place in the country like this. As far as we know there's no place in the world. It's going to make it very unique...customer. Something that's needed. If you go to a dome nowadays in the winter time, the distance between, from the tee box — to the end of the dome is 65 yards. When you go there and hit a long driver, you have no idea if you hook the ball or slice the ball. With this you'll be able to teach a person and give them good lessons, which you really don't get in domes because you don't see your ball flight. And that's — one of the most important things to us. Now as far as the netting, the netting would be up from the month, do you remember? November to April or May? Jeff Helstrom: We've got a plan of the netting system so we can go over it with you. Joyce: So we're discussing winter netting and summer netting. — Jeff Helstrom: There's only one net which stays up in the summer and that's just to guard the DNR property next door. The other netting is only up basically from November until maybe the — first of April. And then it all comes down. Joyce: And that's the device with the. — Jeff Helstrom: Yep, yep. But basically what happens here, I don't know if you can see this but here's our tee box here. Here's where we hit out into the range from that and here's a series of — nets that are about 40 feet deep and then cover the width of the range. And then there will just be some ball retrieval like wire mesh retrieval systems where the ball literally will hit the net and then they roll back into that ball retrieval system at the base of each one of these nets. And then — you can walk behind them because the back of the net is about, I think about 8 feet off the ground. We can literally have somebody go back behind them when people are hitting them and — take the balls out of the retrieval area. Now once again I just wanted to emphasize that this whole netting system is only in the winter. The only net that exists in the summer is the one that borders the DNR property here and then everything comes down. ...and that would just be a _ shorter net just to guard people... So as you can see we've turned the driving range out this way so we want people hitting out to this area and but occasionally somebody's out collecting the balls... — Joyce: Are there any questions on the netting? 36 — Planning Commission Meeting- June 3, 1998 Blackowiak: Excuse me. I just have a question on this map. I'm sorry. It says north, is that correct? Aanenson: He was going the wrong way when he said driving. He was pointing the wrong way. Blackowiak: Okay. So is north at the top of this map or is north really on the right? Okay. So the north up here shows me that north is at the top. Joyce: North is actually pointing west, correct? Is that how I'm understanding? Blackowiak: That's what I'm, it's actually what says north is really west. Okay. I was turned around. I just want to make sure I'm looking the right way here. Jeff Helstrom: Tom Braman would like to say something. He did our wetland delineation. He'd like to say something about the nets. _ Tom Braman: My name's Tom Braman. I'm a biologist with Acorn Environmental Consultants. I worked on the wetland delineation portion and some of the other issues regarding natural resources and environmental impacts. I just wanted to say a couple things that we looked at in regards to comments from the Fish and Wildlife Service about the nets. They wanted a 40 foot net and we went back and looked at the projectory of the ball and we looked at the size of the... to put a 40 foot over the entire area... The Wildlife Service is telling us, it appeared to be related to... so we did step that down. Chris just mentioned the wildlife gates. Basically what those are, and they're just small gates in the lower part of this netting here, they're just open all the time. So an animal over time...find their way out, we can help them with that. There is gates all along the side of the... Sidney: I had a question, is that okay? Joyce: Sure, go ahead. Sidney: Okay. I guess I was concerned, well maybe to back up to fertilizing and pesticides, herbicide issue compared to farming practices which I think could be improved in your situation. I think...What really concerns me are the nets however. Especially given the environmentally sensitive area,potentially a lot of wildlife there. That's one thing that I didn't see enough information being presented that showed me that you had an understanding of the impact of the nets. Now you've obviously searched the web for information about the fertilizer impacts and USGA had some information available. But I have to believe there is information about how to design nets that might be more friendly to, especially deer...pheasants. Woodchucks. I don't know if I care for woodchucks too much but I think if you would have a deer caught in those nets, it would be a really big catastrophe so I'd like you to consider you know doing some more research on that. Jeff Helstrom: What we've done is, we did meet with the DNR and Fish and Wildlife and they're going to work with us on putting this together and they want us to work with them. And I 37 Planning Commission Meeting- June 3, 1998 think that's...in the staff report also that they want to be involved in this project. They have certain net sizes...feel important to have some tensions on the net and net height along that — border. Sidney: And I have to believe there is more technology out there...where you might raise the — lower power of the net at night for example when you don't have customers there and lower it, something that would be more friendly to some of the larger animals. — Jeff Helstrom: Yeah, there's no reason at all that we can't do that. — Chris Bixler: I think what we can do, as far as raising the side nets which are facing...stay up all the time... — Sidney: I guess I'd really encourage you to do that and the other thought I have is that, well if this property's been farmed probably animals know to stay away but I guess I don't really know. We don't have enough information about what. — Jeff Helstrom: Well we definitely will work with Fish and Wildlife. I mean they really, as far as we know...it's somewhat unique. And that's why they want to work with us and we plan on doing it. Especially if we're going to reviewed every year... Sidney: And I did look on the web for netting things and golf netting and stuff and didn't find — too much in terms of, well anything really on environmental impacts of nets. But I did see a lot of net vendors. You know fishing nets and golf nets and...they have custom design so they might be able to... — Chris Bixler: They have... The nets that we're looking at are friendly for animals, if there is any type of friendlier. Just in the way they are with... — Jeff Helstrom: Yeah, taut. This is the higher net. Sidney: The birds would... Jeff Helstrom: They won't get hung up in there and that's the issue. If they can bounce off the — net. It's not a hard surface where it's going to injure them...and we're really talking about mainly you know smaller birds and things. The nets aren't going to be up in the summer or — really during the migration of the geese and ducks and everything... We'll have that one net that will always stay there along there but DNR also suggested that we flag them and put some reflective flagging on that net also to make it more visible. The DNR actually told us that they _ would, once they heard or saw our plan they said they would prefer a net up there all the time. Sidney: Well so that they know that it's there. — 38 — Planning Commission Meeting - June 3, 1998 Jeff Helstrom: Well, so they know it's there plus golf balls aren't being hit onto their property... people running over there to retrieve them all the time. So when they told us that, we thought well we'll keep it up. Aanenson: Can we get confirmation of that information? Jeff Helstrom: What's that? Aanenson: Can we get that in writing? Jeff Helstrom: Oh sure. Aanenson: That's not what we've heard. Jeff Helstrom: All four of us were there when we met with them and they really were in favor for it. Aanenson: Okay. Unfortunately we weren't. Sidney: That's information that City Council definitely... Joyce: We're kind of chopping this up but is there any other information on nets, since we're on that subject right now? Okay. We'll move along then. Chris Bixler: The other thing I'd like to say is,we want to keep this as environmentally friendly as possible. One of our, with Jeff being in the landscaping business and myself in the design of this, we want to keep nature the way it is. We're not asking for a lot of changes outside of our area at all. To keep the area and surrounding wetland the same way, that's our intention. We don't want to impact all areas...try to move our facility back to handle those issues. As far as keeping the property...all the trees that are there, except for some because we had to back up our range, we do have to take down a couple trees but we'll leave most of them up and just keep it natural. If you're a golfer you know that the prettier the course, the more you like it and it's going to be a very attractive course as far as the chip and putt and the range. So we just wanted you to know that. As part of the plans is to keep it environmentally... Jeff Helstrom: And myself being in the lawn business, I mow and maintain condominiums and townhomes and apartments and work extremely meticulous as far as the way we manage our property and this would be the same. I mean I can't stand to come in, if the curbs aren't etched off or the trees aren't trimmed around on a weekly basis or weeds. I mean we just want that to _ look really nice but keeping in mind that you can spot...You don't have to just blanket. If you put a good organic fertilizer down 2 or 3 times a year and strengthen the turf, you don't have a lot of weeks. And we can go through and spray an area this size for weeds with very little herbicide. And we did get some information in regards to the herbicides that were being applied previously and they're applying hatrazine, and they're applying that at a rate of 1 pound per acre. Well what hatrazine is, it's a carryover herbicide so that hatrazine is you know basically in the soil for a 39 Planning Commission Meeting- June 3, 1998 couple of years. Whereas the broad leaf weed control you spray on the plant. The plant absorbs it...very short carry over time. Less than a week and like I mentioned before, if you go out and spray when it's not going to rain, which is what you want to do,because we don't want to have to respray. You're not going to get the runoff of... What we have proposed for the club house. What's existing now is a 800 square foot house. All of the plans...I guess the zoning ordinance for that area...and what we had planned for that is basically renovating that house and putting some TV's up and a fireplace and a little snack bar and maybe to sell some golf clubs and gloves and balls and those kind of things. And have the golf channel on and some nice couches and just having a place that people can come to and sit around and talk golf. You know not just come in and hitting balls and leaving. You know we're not looking to open a restaurant. We're not looking to open a bar. Just something nice for people to hang out a little bit. And we would like to...snacks and be able...talk about some pre-packaged items. We appreciate that. Although we would like to just offer 3.2 beer. We aren't looking for a liquor license but it'd be nice...if they want to have a beer. But basically that house would stay the same other than the interior renovations and get it up to code and...shutters and those kind of things to get it looking good. Roger Anderson: Yeah there should be in your report, there should be a little outline of a floor plan. Aanenson: Yeah, it has one. Jeff Helstrom: Do you want me to go through this and kind of point out what we're going to do in the house? Joyce: Yeah,you can go through it real quickly I guess. — Jeff Helstrom: You know here's our entrance. We've got a little step... We've got a little indoor putting green to handle just basically some small retaining wall to walk around there... And then a nice area around a fireplace. After the storm there's plenty of wood down there. And some tables and then just a little snack bar area. Out here we're proposing putting a deck on with some chairs and tables... Joyce: Do you have a question Allyson? Brooks: Yeah,when was this house built? Jeff Helstrom: I'm not sure. Brooks: Why do you want that house a dark color? Aanenson: That's what it said in the,that's what the standards are for it. Brooks: What was the original color of the house though? Aanenson: It's white. 40 — Planning Commission Meeting- June 3, 1998 Brooks: ...keep it white though because that way, you're going to go to all the trouble to keep a 1930's house, you ought to keep it in it's original color instead of turning it dark brown. Aanenson: Well,they're modifying the entrance. They're adding a deck to it so they're not keeping it. It's completely changed. Architecturally, I'm not sure the use or the entrance or the decking around it is going to make it...what it is today. That's what the standards in this district say so. And if you look at the entrance of it, it shows you that it's modified quite a bit. Jeff Helstrom: I think that's, Roger did you have... Roger Anderson: My name's Roger Anderson and I'm the civil engineer on this project and Jeff and Chris have done such a good job of explaining things and they're so enthusiastic about it that I don't have a lot to add. But there is a couple of things that we wanted to talk about briefly. One of them I'd like to point out is an aerial photo that we have. Perhaps we have addressed the question of whether farming is a worse condition or the golf use is... Coming in to the north. _ The limits of the...there is periodically that this is a photo from the city...the golf course area is right up in here. It's 400 yards long roughly,but at that time the agricultural use went almost twice as far as it was in a Type II wetland according to Tom so the ag use slopes around and at _ times there's significantly more ag...and weather conditions. The year round use of that property is really one of the keys to making this work and part of that is the,just to let the golfer get out there and hit balls except for...winter it's too cold. Maybe it's 0 degrees for example when they can't hit. The shed system will protect them and there will be little direct heaters that can keep the golfer warm which they have at the domes for example. The lighting system is the key I think to making that happen on a year round basis. And in order to make that work, to make year round use work, we need the lights out there. It would be roughly from daylight savings time to daylight savings time that those lights would be in use. Obviously now you don't need the lights. At golf courses and driving ranges that are out there right now, function from sunrise to sunset and that's the traditional way to do it. And up through the fall, gradually the days get shorter and we want to add a couple hours to that time. And the same things through the winter months and the daylight savings get,people can't get away during the day to get out on the golf course. . .That's why we're asking that this happen. I've got a couple of photos that show what typical conditions are. Let's see if I can get this on the screen right here. This is a range out in Florida. Chris has gotten pictures and it shows a typical range. You've got the tee boxes and then you've got the grass hitting area and a target area. So this is a little different than your typical ones because it's actually got a little... You can hit the target greens and the hills and the trees out there to aim so you really practice your game and improve. Not just have a big, flat field. This particular one also has...lighting and this is a picture when they're out at night. That's not snow on the ground by the way. It's Florida sand... So you can see the impact of the lighting. Now it doesn't light it up like a football field. The uniform light everywhere. It needs some lights and it needs some light in here so you can see your ball flight and see what's going on. Those lights would be in use,we're asking until 9:00 at night so we can extend our hours so people can use the facility and at that time they get shut off. It isn't a 24 hour lighted area and it's just a parcel part of the year that it gets used. This is a typical what you see if you look down the tee box part of it, the grass hitting tees. You see these lights up above you and they'd be shining of course 41 Planning Commission Meeting- June 3, 1998 and focused out onto the landing areas so you can watch you ball in flight. So we didn't ask for the lighting for example to unreasonably extend the hours. We asked for that because we needed to make this winter portion of the facility work for us. So that those people will be there. We think we can control the right, the timing will be right on and that's why we're asking that the light portion be looked at a little bit harder. Again, we modified the lights to minimize the light that goes outside the limits. Our lighting engineers assured us we can cut it down to the half a foot candle that is typical for lighting plans. Half a foot candle at the edge of the driving range so — there are ways I think we can make this a good neighbor to make it work and not impact the wildlife and still make it a good year round facility that we're asking to provide here. Chris Bixler: Can I just add something here? Roger Anderson: Sure, go ahead. Chris Bixler: I just spoke to the company that's doing our lighting for us. Giving us all the information on it. They deal with a lot of issues like this every day. When they build golf courses, there's wetlands everywhere. He assured me that we can keep our lights focused on our range only. And that's what we wanted. It's not that we want to light outside of our area. There's no need for it. — Jeff Helstrom: Basically what we need to light, and if you look at this picture right here, is our green, which are right out here and here. And our tee box. So if a professional is giving a — lesson... that's the main importance for the lighting. And that would be very minimal because the actual hours...summer extend it out probably only be a month and a half... but in the winter we'd be using the same exact same lighting. It just filters up... people will be able to see their — ball, and they have assured us that they can focus that light strictly on... Chris Bixler: Also if you notice in the back of this picture, that's the end of the driving range... — tree line. Now if you look in this picture again,you cannot see the tree line. It basically eliminated that. That's how they...they've got anti-glare equipment that will be attached... Roger Anderson: We're available to answer any other questions. Joyce: Okay. Commissioners, do you have any questions for the applicants? LuAnn. — Sidney: I'm wondering you're talking about the supplier of the lights. Do you have that in — writing? Do you have a description prepared? Jeff Helstrom: Oh yeah. Sidney: Did we have that in our packet? Chris Bixler: We just got this. Actually it was supposed to arrive last week and it didn't...lost in the mail and he Fed Ex'd us a copy yesterday... Roger, did you bring any copies of that? — 42 Planning Commission Meeting- June 3, 1998 Roger Anderson: We did bring copies but...part of the package and that puts staff and you folks at a bit of a disadvantage but we did get 5 copies of their revised plan and a letter stating what Chris had said and we'll be glad to pass them around and submit it with additional information for the Council. Sidney: That's what... Burton: Actually one quick one. Can you describe the dugout part? Jeff Helstrom: Basically what the dugouts are...a three sided dugout with the back facing north. It's really important because typically your cold winds in the winter come from the north. It's open on one side. It's high enough to swing a club in and it's deep enough that somebody can _ stand back here and watch you hit some balls. So it's just a hard surface floor for hitting off of and ultra violet, it's not like a...it's the kind you see in a hockey rink. They do really well and they're pretty intense. We feel that, well we're sure that we can under semi-normal weather conditions... We're not looking for 75 degrees...for someone to come out and hit a driver in February, they'd be happy if it was 55 or 60 degrees. It's not an indoor playing... Joyce: I'm a little confused on the lighting. You have this lighting plan. You have 10 poles down on each end... Jeff Helstrom: I did want to mention one other thing. You mentioned poles. We originally had a 50 foot height that we wanted to go up with and DNR and Fish and Wildlife said 40 was a better number. I mean we really can get away with 50 just fine. We don't have to have 60 and then basically our lights are just focused...need the lights in back of the range will be on the poles. Most of the other lighting is on... Joyce: DNR suggested 40? Is that what you said? Jeff Helstrom: Yeah. Joyce: And you're going...60 is better? Jeff Helstrom: We originally wanted 60 and 50 is... Joyce: You've got, it looks to me like about eight lights on the winter driving area. Is that how you would describe that? Chris Bixler: No, we've got some low lights that shine on the, out of the ground on the greens... Joyce: What are the other two lights over there? Are they used in the winter time? Jeff Helstrom: These? 43 Planning Commission Meeting- June 3, 1998 Joyce: No. Keep going to the north...Those won't be used in the winter time? Jeff Helstrom: No. Joyce: So what we're talking about in the winter time are 4, 8, 10. Okay, 10 lights in this area right here, correct? Jeff Helstrom: Actually we don't even need...lighting. I'm not sure why that's even way out there. This is the only area that we need to light because we only need to go out 185 yards. So you're looking at 1, 2, 3, 4, 5, 6, 7, 8 and we've got a couple behind the dugout that are shining out and down. Joyce: How tall are those A3? Those are 50 feet as well? Aanenson: Yeah. That's what it calls on in the plan. Joyce: So N 10 and 9 are not even going to be there in these plans, correct? Jeff Helstrom: Right. We don't need... Joyce: What about N5? The two N5's. Are they going to be there? Roger Anderson: These two will not be there. That was my error actually. These two are the ground lights. I think if you look back at the photo you can see it. It highlights the putting greens for example...small mound and a light behind it and the light will shine at that target green... visible from the tee box without raising the entire light across the whole site. Joyce: So you'd be lighting an area about the size of an average large size parking lot? Jeff Helstrom: Right. Joyce: Now, you mentioned that in February you'd love to have 50 degree weather. What if it's, like it normally is, is zero. Then you shut down? Jeff Helstrom: Well our plan is to, under put a sign out there and under inclement weather conditions or severely cold temperatures,please call first before you come out because we don't feel that if we're to have a southwest wind coming in it's 5 or 10 below,we're not going to be able to keep the area... Chris Bixler: I spoke with a company that makes the heaters and they said at zero degrees outside, they can heat it to 55 degrees...if it's uncomfortable and it gets under, you know below zero, of course we're going to have to close... Joyce: So you're planning on this to be... 44 Planning Commission Meeting- June 3, 1998 Jeff Helstrom: And we may do something like this...golf balls when it gets under a certain temperature in the dugout. We just want to... Chris Bixler: We're all Minnesotans here. You know we're used to snow and that's kind of a positive thing about this. I think it's... Joyce: And your hours of operation will be Sunday through Sunday then? — Jeff Helstrom: Yes. Joyce: All right. I think that's about all I have to ask. Thank you very much for your — presentation. This is open for a public hearing. Can I get a motion please to open it up. Brooks moved, Conrad seconded to open the public hearing. The public hearing was _ opened. Joyce: Anyone like to address the Planning Commission? Please step forward. David Albright: Good evening. My name is David Albright and I'm one of the owners and hopefully sellers of the property to those gentlemen and I've got a very brief couple of comments — to make to you. I remember earlier Commissioner Conrad had voiced the concern that is this a break even situation ecologically? Is it a losing situation ecologically or is this a gain? And I'm here to tell you that I think it's a gain and here's why. There has been about 35 acres on this parcel farmed for as long as anybody can remember. Some years it's 40-45. Some years it's 25 but for the most part it's 35 acres. And that has had broad application of not only fertilizers but — herbicides for all of those. Hatrazine. For a guy who made his living spraying that stuff during summers when I was in college, that's terrible stuff for living things. It really is. So I think that you really do have a net gain ecologically by having one spot spraying of herbicides during the — dry times with a no carry over situation as opposed to a blanket spraying them. Sometimes in the wet times, but certainly with the one year hatrazine does carry over for at least 1 year and some things you can't grow for 2 years with hatrazine. So you know it's going to be there if it floods — and you know it's going to be there in the springtime when snow is melting and presumably draining into the creek. So I think from a purely ecological perspective, this is a win/win situation. And there's another thing I would like to point out and that is, a lot of people are — familiar with the saying that gee, some people look at a glass as half full and others look at it as half empty. I think that this body can look at this particular glass as not half full or half empty but about 2/3 full because the amount of ground that these folks are going to be using is only the — high ground and in not the particularly sensitive areas. It's adjacent to or next to some sensitive areas. But those sensitive areas are being left absolutely intact to...about 50 acres. And I know one of the commissioners, I believe...are we better off acquiring this and maintaining it as a park — or natural space or green space. I think you can have the best of both worlds. The part that is not particularly sensitive to the...by these folks and it's going to be something that's going to be pretty. It's not going to be an eyesore. It's not going to be something that would also be allowed — by your zoning ordinance as a conditional use or an interim use. It could be a communications tower or that type of thing. But the 50 acres of sensitive stuff is being left absolutely pristine, 45 Planning Commission Meeting- June 3, 1998 unaffected. In fact enhanced by the lack of broad range, significant herbicides or fertilizers that would be, and have been for the last 50 years. Been I suppose leaching into the creek area. This is a chance to dramatically minimize it. Make it applied at the time that it's most environmentally safe. And two, to apply an organic type of fertilizer which you folks have the right to demand. So and I think these folks are sitting here today saying, you know. I'm going to — ask you to trust me a little bit but they are trusting you a lot. They're going to go spend several hundred thousand dollars to do this project and give you folks a chance to negatively impact them every year if they are found to be negatively impacting the ecology of the environment. So I suppose they are asking for a little bit of trust but they in turn are virtually placing their economic well being in your hands too and trusting that you will be good stewards of that trust. Finally with respect to the lighting issue. I used to know a lot of about deer and wildlife because I used to be a hunter and as I get older, I've stopped hunting because basically I don't like killing things. But animals are not dumb. They really aren't. Deer are going to figure out that there's a net there early on in their life and they are going to adapt to it and they are going to avoid it. And I have seen a number of driving ranges, the one up in Bloomington. It's either in or next to...Scott Park. They have huge nets and I don't drive by there every day but I drive by there several times a week and I've never seen a bird stuck in there. So I don't know that that's, I mean I guess I never even thought that that birds would do that because the birds that I know have always been a lot more wily than perhaps I wanted them to be at the specific time I was dealing with them. So I guess what I'm saying is, I think that this situation probably needs the lights to work. But in return for that small intrusion, there's nobody living next to it. There really isn't. There's not anybody. There's no houses. There's the Shakopee skyline lights to the rear of the site. But I really do think that the city of Chanhassen could benefit significantly over what's there, and certainly benefit significantly for this proposal over what could be there by looking through the conditional uses there and uses that are allowed which would be a lot more onerous and much more of an impact than this would be ecologically and socially. Does anybody have any questions? Joyce: Thank you for your comments. Appreciate that. Anyone else like to address the Planning Commission? Seeing none, can I have a motion to close the public hearing. Brooks moved, Conrad seconded to close the public hearing. The public hearing was closed. Joyce: Ladd. Conrad: Interesting issues. It's amazing here. I need a couple... Dave, septic systems check out or we're going to look at it? Aanenson: It's a newer system. The Building Official... Conrad: Okay. But, because it now has to handle more than that. Aanenson: Correct. Yeah, there's some other issues. 46 Planning Commission Meeting- June 3, 1998 Conrad: And we require, what do we require Kate? Don't we require two different locations to build. Aanenson: An alternate...correct. Conrad: And do we have different standards for a use such as this? Aanenson: Yeah, and they'll have to meet all those. Correct and that's in the Building Official's... Conrad: Has the DNR, Fish and Wildlife, have they seen the most current plans? Aanenson: No. They had an original meeting with them and we've spoken to different parties so we're hearing different things. That's why we want somebody... Conrad: I bet you I've got 12 pages of comments here and it's really hard. That's why I'm not talking very quickly because it's really hard to net it out. It's an interesting use. There's probably, there could be a better use down there. But I do need some help from, the problem as we...we could force all sorts of things to happen that cost a lot of money in terms of the _ evaluation and that's a good way to kill a project if you want to do that. Yet on the other hand I guess I do need, it is in a sensitive area and I am not novice on some of these things. But I do need some, to review, I do need to have some outside governmental experts talk about the plan as is before I can do anything to it. I just need expert, some expert saying this is how I see it. I've read the reports in here but it's not the most current report. It's not reviewing the most current plan. Dave, you can correct me. Aanenson: Well what they did is they modified their plan based on Fish and Wildlife. There are some areas that there is not concurrence. As I indicated, Fish and Wildlife says 40 feet and we concur. You can't have 40 feet because your ball's going to go over. Conrad: They also said make it colorful. Aanenson: Well the people that yes. Tag the top of the netting so that it acts as a barrier. Conrad: I read it differently. I read it as make the netting visible is what I heard, is what I read... Joyce: I heard flags... Aanenson: Yes. There's markers... The other issue is,they felt there is a lot of literature on bird migration and nets. That's not a concern of the DNR. What it is is the terrestrial animals. If it's taut enough the birds will bounce off and what they're concerned about is if they get hooked in the net. And if they use the right type of system, that shouldn't be a problem. It's the other _ migration and stuff and the concern is...and we discussed is if that netting at some point, the permanent one which is on the eastern border at some point is moved down. That's why we're 47 Planning Commission Meeting- June 3, 1998 saying, we don't have enough information on what's migrating through there right now. We've — got our own... Conrad: So what you're telling me is that we don't need to send the current plan. I need somebody to tell me whether that creek is being impacted. I do fish trout. And you're right next — to something that I don't have a clue what you're doing to it but it's one of the few trout streams in the seven county area. I just need somebody to say, hey. It looks like it's going to be better, and I think based on what you said it's going to be better. But I can't trust you. I need somebody — that you don't have to pay a lot of money to, and probably somebody from government to take risk to say hey. It looks like it's going to be, you know it's not going to be farmed. It's going to — be better and I think if you put your money where you mouth is, it should be better. But I need somebody to tell me that. — Aanenson: And I believe we can work that... Conrad: I also need staff to tell me what the conditions for review are before I can move on this. — Because it's only fair to you folks because I'd be real tempted to pull the permits, the conditional use permits if things go wrong. Right away and you're going to put some money into this so what staff is saying is that we want to review this every year and that review costs you a whole — lot of money in terms of what we could do to you. So I think you'd better make sure you know what we're going to, how we're going to review you. It's not going, if this passes. If it gets out of here and the City Council goes with it. But I need to see what those review criteria are — because for my own, and now you've got to deal with...and the trout stream happens to be mine. That water quality can't deteriorate a bit. Not a bit. And I don't think it will. But somebody's got to tell me that but if it does, a year from now, there's a good chance that the money you put in — is bad money. Because that'd be forcing you to do something about it. That's my little issue and I'll bet you, everybody else here has something that might be precious to them or of concern. So anyway, that's what I need and I'm not sure, I guess what we have to do here is see where — everybody else is netting out. Maybe my direction, and my direction generally would be to table this to do a couple of these things. I want DNR and Fish and Wildlife to review the plan again. I want them to tell me that this is better, that the water quality and some of these other things are — probably going to be a little bit better. Not perfect. You know it's not going to be like it was pristine, but I want them to tell me that. I want staff to develop a list of what we're going to measure so that the applicant knows what we're going to measure and what the standards are — going to be held to because you may not want to do this deal if we have some standards that you really don't like. I also need to plan, and maybe the plan is in there for, but I didn't see it. The — plan for fertilizing and for, I just have to see the hard, concrete plan because that's really part of what we're going to manage. Staff's going to manage. It seems like a lot of work but again, it's the applicant's right to do this. There are some real benefits to doing it. But I'll say a couple other things and then I'll just shut up and listen to everybody else. I'm not persuaded on the lights yet. It seems out of character and as we look at our city's standards and codes and whatever, I do agree with the staff report. It seems out of character. Somebody's got to tell me — more than. It is out of character with the area. There's just no doubt about it and therefore I agree with the staff report that the lights should not be there. 48 — Planning Commission Meeting- June 3, 1998 Joyce: Thanks Ladd. Alison Blackowiak. Blackowiak: Okay. I agree with what Ladd has said generally. I do have a few other issues that I would like to raise. One of my overriding thoughts was, I think this is going to be, should this go in, it will be a final use. I cannot see anything else coming afterwards because it is not planned for sewer and water. It is not, I mean the zoning is such that this is the existing flood plain. There might be a house on there. Maybe two. I just, I don't see a lot of potential for this property other than agricultural. Other than open space or park. Or other than possibly this. It's just not going to happen I don't think. So I think this is a final use should it come to that and we'd better be really comfortable with what goes in there because I think it's going to be in there _ a long time. So building on what Ladd said about the trout stream, I certainly agree. I read the pesticide information and noted that it all seemed from the US Golf Association or some, I don't have the official name. USGA. US Golf Association. I would say consider the source. I mean I'm sure they're going to be biased in favor of whatever findings happen to help. There may be some other findings out there that we as a Planning Commission should be looking at or the City Council should be looking at. Maybe the Environmental Commission of Chanhassen has some information of some sort or access to something because I'm not convinced that what I'm being told is the entire story. It's maybe the story that they want to be heard but I'm not sure that I'm getting all the information that I need to make a good decision. I am concerned about the Bluff Creek management plan and how this fits in with the use envisioned by that plan. What, is this in the primary corridor? What does that mean for it? I'm not quite sure yet and I'd like to know what that has to do with this plan as it is right now. I also had comments about the over... mechanism for pesticide usage, etc. and Ladd said it much better than I ever could I think that you know the applicant also needs to know what's being measured. I mean the city has to develop some standards. I mean what are we looking at? Are we looking at pesticide levels? Are we going to measure them in terms of runoff? How do you do it? I mean number of golf balls lost? Who knows? I mean what are we concerned about? You know what does the City need to be concerned about? What does the applicant need to be concerned about? How do we measure it? Because I think that once an applicant is in, or a use is established, it's hard to stop that use. I mean I know that we've got conditional use permits that are broken constantly and I don't think I've ever heard of anybody being fined or stopped from keeping their business because conditions of the permit were broken. It hasn't happened. So I think that we have to make sure that we know what we're going to go into and really get some serious conditions written down. Both sides agree to it and make sure that everybody understands what's happening going in. And finally, to me this plan seems out of character with Fish and Wildlife and DNR as neighbor's but as long as they are a party to negotiations and to just sort of the general comments about what's going on, I'd feel more comfortable. But until everyone sits down together, that's the applicant, the city, DNR, Fish and Wildlife, I wouldn't be comfortable going ahead until I get the consensus. I get the feeling that everybody is on the same page here and we're not getting little bits and pieces from here and there. I want kind of a plan that everyone can buy into and then come back and tell me, this is the plan we've all agreed to it and let's move forward. So I agree with Ladd, I'd like to see it back after you get some more information and I would feel much more comfortable if I had that feeling that all the players and all the interested parties were being heard. 49 Planning Commission Meeting - June 3, 1998 Joyce: Alison, another one of the key points here I think...is the lighting. Do you want to touch on that at all? Blackowiak: My note, totally disruptive. That was what I've got written down. I just don't — think they fit in at all. I mean as the neighbors, I mean if you're talking about Fish and Wildlife and DNR and trout stream and then it's like lights. It just kind of seems out of character with the neighborhood. Out of character with what's happening in the area and not consistent with the comprehensive plan. What we had envisioned for that area so I do not feel that lights would be appropriate. Joyce: Thank you. Allyson. — Brooks: I agree with a lot of the previous comments. I actually like the project. I just don't like the project where it is. I think it's a really nice idea. I'd really like to see it happen in Chanhassen. The location is the problem. We've got a natural landscape down there and you've got farming going on, it still seems like you have that rural landscape. You don't get rural landscape anymore once they put the golf course in. It's suburbia. So we're changing the nature of the landscape. If we talk about you know, it's agricultural or open space, a golf course doesn't, you know you talk about vision. What is the vision that we want to put down there. What do we want it to look like? Conrad: We have none... Brooks: Right, so. Okay. The nets. I mean figure out what the nets are going to look like. There's one of those driving ranges on, in Eden Prairie on Crosstown. I mean they're obtrusive — looking and I can't imagine that they're not detrimental to wildlife at all. They can't not be detrimental to wildlife. The lighting, I have to agree with everyone else. I don't want to see the lighting there. I don't think it fits in with the area one bit. But it would be nice to see the project — happen so I guess I sort of feel like Ladd and Alison is that maybe it should be tabled until we have a little more information. I'm very concerned about what the impacts are to the natural resources. Joyce: Matt. Burton: Well I have no doubt that if you guys get turned loose on the project it will be a success but I do agree that there are hurdles that you have to clear and they happen to be big hurdles... (The rest of Mr. Burton's comments were not clear on the tape.) Joyce: Thank you. LuAnn. Sidney: I was thinking,when I went down and looked at the property and that was the previous time when we thought it was going to be on the agenda, I thought oh. That seems like a good use for the property and I still think it is a good use for the property and I hope you don't feel discouraged about continuing on and building this... I agree with staff recommendations and I think the, what staff has recommended now is based on the information that we have right now 50 r Planning Commission Meeting - June 3, 1998 and for example the pro shop would be okay. However the snack bar, I guess I do agree that I don't think the need for alcohol is there, especially if you're talking about bringing a family and — making it a more family friendly area. Just the information we have now, limiting the hours and not relying on lighting makes sense. And also the remodeling of the house according to staff report seems that... What I'm trying to get at is, we just don't have enough information to really — give you all that you need to make this project successful. And I think...wildlife impacts studied. A lighting study that would convince us that you know what they're doing and everything's going to be okay with...pesticide program in much more detail. So I guess I agree with...I'm kind of flexible. I was thinking that maybe this could go forward when I sat down this evening but I think at this point I would like to see it tabled for more information. I think that'd make a much stronger case for you to get everything in order here before it went to City Council. — Joyce: Thanks. Very interesting project. I appreciate your entrepreneurial spirit. I think it's wonderful and I'm on the side in favor of trying to push this along but I have to agree with all the — other commissioners. There are definitely some hurdles here. The Highway 5 corridor...we're going to turn it into something manicured. I might like it more manicured than natural. Some people might want it more natural than manicured. I mean that's kind of personal opinion. My — concerns on this whole thing, whether you want to proceed forward or not, I think lights sound to be like a deal killer. If the lights don't go in, I think you've got a problem. Now that might not be the case. I think that's a major issue. I personally could live with the lights. The only — question or concern I have is that when we notified the neighbors...500 feet or something like that, you know you do have neighbors up in the bluff that wouldn't be notified. And I think they lime might need to be notified because I think this is going to impact them. And give them a chance to come in and speak their piece. I don't want to put this up and then someday somebody you know, the grand opening and somebody's looking at their back yard and said what the heck is — that, which they probably would. So I think I could, I'm...That kind of gets back to the vision of 212 and where are we going out there? Bluff Creek...still confused by that and I think if it's a primary portion of Bluff Creek... I really don't have much more to say on this. I just hope it's — worth while for you to proceed forward so I think you've got a lot of direction from us. I'm in favor of tabling it. I think it's our job here as a commission to kind of clean the proposal up so you have a fighting chance of presenting it to City Council. And I think there's some valid points — here. I don't think it's insurmountable some of these things. I think we do need some more information but you've got kind of a job to do here and I hope you can proceed forward with this. So my recommendation is, I'd like to see it again... If you can't do without the lights,boy I'd — like to find out if the neighbors, what their feelings were. Things like that before I'd be in favor of going forward. So with that said, could I have a motion? Conrad: Mr. Chairman I'll make the motion but can I ask staff a question? Have we said things that make sense? — Aanenson: Absolutely. I think you're right on as far as putting in so they know what we're going to measure and hold them to. I agree...but what does that mean. Is it a few balls that we have to go retrieve out of the wetland? I guess that's some good issues... I think those are all — legitimate and I think that we can work with the DNR, Fish and Wildlife to come up with the standards that we can mutually agree to. 51 Planning Commission Meeting- June 3, 1998 Conrad: I'm going to make the motion but you know, as you sell us on one issue, you can see how we can move on other issues. If we get the feeling that that water quality. I'll speak for myself...water quality is improving. That can be persuasive for other issues that I'm not...so I'm going to make the motion right now to table this item, Planning Case 98-8, an Interim Use Permit and the zoning ordinance amendment. Joyce: Can I have a second to that please? Brooks: Second. Conrad moved, Brooks seconded that the Planning Commission table action on the request from RSS/Perma Green, Inc. for a Conditional Use Permit for alteration of a flood plain, an Interim Use Permit site plan review to allow a golf improvement center/driving range/office club house and variances to the size of building and hours of operation and a code amendment to allow an office/clubhouse to be located south of the intersection of — Great Plains Boulevard and TH 212. All voted in favor of tabling and the motion carried. Conrad: What I'd like to do is recover the issues that I think are important. And man, this list could be big and I'm not trying to create a huge research project on this. But the most important thing is for staff in doing the standards. We've got to know what we're going to hold you to. You shouldn't do this deal until we tell you how we're going to measure because a year from _ now somebody will be there and will be, and you don't want miscellaneous standards. This is, I don't know where we go. There are a few people here that say the lights are out of character. And a few people that say it doesn't matter. I don't know how you deal with that one, but you're going to have to. It's split and you're going to have to deal with it. I need the DNR and Fish and Wildlife to see the current plan and staff comments saying 60 feet is okay. I want them to see what you're saying is okay. And for them to see it back and Kate if you can just guide them... I — don't even know if there's a trout in that stream Kate so when I say this. Aanenson: No, there is. Conrad: You know if there's no trout, tell me. Aanenson: No there is... Conrad: If there is, I'll go down and fish...we'll be reasonable on this stuff but on the other — hand, if there are trout in there you know and then I care...lot better places to go trout fishing than right here but the point is to improve it and that's what you've got to do. You've got a business proposition but we've got to improve it there because there's some things that aren't quite right. They're not a perfect fit. And so therefore if you're not a perfect fit, you've got variances and all these things, you've got to solve some of the harder problems. I guess I need, in — your application a commitment to refurbish after the floods. And Kate, maybe you've got some standards and maybe that's in what we're monitoring but it will flood and I'm not going to sit there and wait for 2 years until you financially can come back with the money to fix it up. I made _ 52 Y Planning Commission Meeting- June 3, 1998 that commitment so if it doesn't happen, this is an interim use permit without an expiration date Kate. So I need to know what you're telling me about that. Is that forever? I need to know what the standards for fertilizing and treatment are. I need to know the plan and I need to know, yeah. I need to know what the plan is and somebody to tell me it. Or whatever. I believe we need broader notification. I think that's a valid point. We're not only impacting just the DNR on each side but the folks up on the bluff. That's a real valid point. I need to know back from you Kate what the Bluff Creek overlay impact is. I still don't understand it. It seems like we ignored it here so...I can't track everything... That's what I'm looking for. Joyce: I hope you can work with staff on this. I hope it comes back. I hope this will work out. Jeff Helstrom: We'll be back. _ Joyce: This is the best way to handle this because we need to tighten this up before it moves on. Thank you very much for coming... OLD BUSINESS: Joyce: Any old business? Aanenson: We had talked about not having...first meeting. Depending on this application we may need you to...we may have to have that meeting. I'm not sure we can turn everything around in the next meeting. We have the comprehensive plan set. Blackowiak: I'm sorry, can you clarify that please. The clock starts, doesn't the clock stop if we request further information or if we don't have all the information we have to make the decision? Aanenson: Correct, and you can recommend denial and forward it if you want to. Well, I'm just saying that pushes them out a month. Blackowiak: So what are you telling me then? I'm sorry. Aanenson: ..we were not going to have a meeting on the first. I'm saying if they get their information in, we may have to meet. Blackowiak: Oh, July you mean? Aanenson: Right. Blackowiak: I missed that first part. Aanenson: I'm sorry, because June 17`h we blocked out for the comp plan... I've already noticed _ for public hearing. That's probably going to take a couple hours...if you want to meet at 9:00 or 10:00 or 11:00 on that item... So anyway, for your next meeting that's been blocked out as the 53 Planning Commission Meeting - June 3, 1998 comprehensive plan. So we put an article in for the Chamber and we'll be sending it out to the builders association. They're aware of it. The date... APPROVA OF MINUTES: Burton noted the Minutes of the Planning Commission meeting dated May 20, 1998 as presented. Vice Chairman Joyce adjourned the meeting at 10:40 p.m. — Submitted by Kate Aanenson Planning Director — Prepared by Nann Opheim 54 — Page 1 of 2 From: Senate Publications <senate.publications@senate.leg.state.mn.us> To: MN Senate Committee Schedules <SEN- SCHEDULES@sis.senate.leg.state.mn.us> Date: Friday, June 05, 1998 2:47 PM Subject: Meetings for the week of June 8-12 Monday. June 8 Legislative Commission on Minnesota Resources Chair: Rep. Loren Solberg 9 a.m. Room 5 State Office Building Agenda: Proposal hearing. For a complete agenda, please check the LCMR's web site at: http://www.commissions.leg.state.mn.us/Icmr/99sche2.html#06/08/98 Tuesday, June 9 Legislative Commission on Minnesota Resources Chair: Rep. Loren Solberg _ 8:30 a.m. Room 5 State Office Building Agenda: Proposal hearing. For a complete agenda, please check the LCMR's web site at: http:/%www.commissions.leg.state.mn.us/Icmr/99sche2.html#06/09/98 Wednesday, June 10 Health and Family Security Budget Division Chair: Sen. Don Samuelson 8 a.m. Depart Capitol Agenda: Tour of Brainerd Workforce Center for an update on Welfare Reform issues and tour of Crow Wing County Social Services for a discussion of out of home placement and battered women's shelters. Legislative Commission on Minnesota Resources Chair: Rep. Loren Solberg 8:30 a.m. Room 5 State Office Building Agenda: Work program approval. For a complete agenda, please check the LCMR's web site. Thursday, June 11 Health and Family Security Budget Division Chair: Sen. Don Samuelson 8:30 a.m. Brainerd Regional Treatment Center Agenda: Discussion of community corrections and other issues. Friday, June 12 6/10/98 Page 2 of 2 No meetings scheduled. Find the Senate Schedule online at: http://www.senate.leg.state.mn.us/mtgsched.htm If your Email program supports "Clickable Links", To Unsubscribe click on the following link: <mailto:listsery@senate.leg.state.mn.us?body=unsubscribe%20sen-schedules> 6/10/98 11011 CITY OF MEMORANDUM CHANHASSEN TO: Planning Commission 690 City Center Drive,PO Box 147 FROM: Kate Aanenson, AICP, Planning Director Chanhassen,Minnesota 55317 Phone 612.937.1900 DATE: June 10, 1998 General Fax 612.937.5739 Engineering Fax 612.937.9152 SUBJ: Public Hearing on the Comprehensive Plan Public Safety Fax 612.934.2524 Web www.ci.chanhassen.mn.us On May 19, 1997, the city"kicked-off'the comprehensive plan updating process. Since that time, there have been a series of work sessions by the L Planning Commission, Park and Recreation Commission, and City Council. There have also been several articles in the local paper, the Chanhassen Villager. On April 22, 1998, a Town Meeting/Open House was held. The Plan is now ready for a public hearing before the Planning Commission. L The comprehensive plan is the city's growth document and the vision for the future. The comprehensive plan includes elements of Land Use, Housing, Natural Resources, Parks and Open Space,Transportation, Sewer and Water, and Capital Improvements. The plan is designed to serve as a guide for the local decision making process. Many of the goals of the 1991 Comprehensive Plan have been met. For example, the City's Storm Water Management Plan,and encouraging the cooperative effort between the school district and the city (Bluff Creek Elementary and the Recreation Center), completion of the Highway 5 Corridor Study,which revisited land uses and provided locations for the access boulevard, and most recently the Bluff Creek Natural Resources Plan. The plan addresses future roads,public facilities (including the library), land uses including the amount of residential, industrial, and commercial phasing of the municipal services (sewer and water), life cycle housing, and recreation and open space needs. Copies of the plan are available at city hall. The Sewer and Water as well as Transportation sections have been completed by the consultants since the Planning Commission last reviewed these elements in a work session. The Sewer and Water element also serves as a stand alone document. The section has been included in the comprehensive plan, but a more detailed document is attached separately for your review. More importantly it has been included for the criteria for the Metropolitan Council approval. The City of Chanhassen.A growing community with clean lakes,quality schools,a charming downtown,thriving businesses,and beautiful parks.A great place to live,work,and play 4 Planning Commission June 10, 1998 Page 2 The Transportation Plan was completed by SRF Consultants, who also did the Carver County Transportation update. There may be some future modifications if Carver County makes some changes to their plan. One of the most important features of the transportation section is the functional classifications and discussion of the system wide improvements that we will need to meet ultimate development. The Storm Water Management Plan is also an element of the Comprehensive Plan but because it _ has already been approved by the City and the Met Council, it is not being included for your review at this time. There has been input from property owners currently outside the MUSA such as Erhart, Fox and Zwiers regarding the MUSA expansion and timing for urban services. Staff supports the MUSA phasing as proposed in the plan because it represents an orderly, efficient, and fiscally responsible proposal (see attached Erhart,Fox, and Zwiers letters). At the April 22, 1998, Town Meeting, staff estimates that there were approximately 80 people in — attendance. There were questions on many different elements of the plan but no clear consensus on policy direction. There seemed to be general agreement on the direction the city is going. We know that the library board is still concerned about the priority of the capital investment plan. They believe they should be a higher priority. Staff will present a brief overview of the plan at the public hearing. Dec-08-97 12 : 38P Jeff Fox 612-474-7118 P . 01 l November 17, 1997 Dear Interested Parties, I have owned my Chanhassen farm for 35 years. During that period of time, my co-operator Bruce Jeurissen and I have used good farming practices to obtain the highest yield. I originally purchased the farm with an eye to the future of great possibilities for development, due to it's location and beautiful wooded areas. During the decade of the 1980's, the state legislature requested each county in the seven county metro area to have 5 farms as sanitary landfill sites. My Chanhassen farm had the best qualification due to it's location is the closest to the South,(est metro area. It was calculated at that time to take ten years to fill the landfill. Most of the land fill would be coming from Hennepin County. I was very strong against the farm being used as a "dump." During the four years the law was in effect, I made 3 to 4 trips per year to the Met Council meetings. One of the reasons I opposed the sanitary land fill was the location being South of the Chanhassen metro area. In the summer when the great outdoors is enjoyed, the breezes would've wafted the stench of the land fill over the city and in turn would've been unbearable. One summer I picked up the list of proposed Carver County landfill sites. After studying each I noticed they all had something different from my farm, either tiling systems or pumps. I called the Met Council to inform them that my farm had a new extensive tiling system. They removed my farm from consideration at that time, and later the law was repealed. The City of Chanhassen "dodged the bullet" that time. 1 consider it risky to let 600 contiguous acres with no development lay in waiting. I would classify that as being vulnerable. Please make every effort to move the MUSA line South of Lyman Blvd., instead of encouraging the development further from the metro area. Sincerely, Frank J. Fox (941)793-3306 cc: Mayor Nancy Mancino '— City Planner Kate Aanenson Members of the City Council Jeffrey A. Fox 5270 Howard's Point Rd. Excelsior, MN 55331 (612)474-7118 December 17, 1997 _ To the attention of the mayor and council members of the city of Chanhassen: In the previous letter written to you dated 11/17/97, our questions were misinterpreted to be about land use. Our actual concern is the direction for the future extension of the urban service area. My interest is in the 1995 study Kate referred to in her October 11 , 1996 memo called _ the Bluff Creek Watershed Natural Resource and Management Plan. Some of us land owners, south of Lyman Blvd met with Kate at the Senior Center on 10/21/96, Kate presented staff recommendation of the updated land use plan, her primary concern was _ that the city would like to take advantage of some watershed funds for the actual Bluff Creek corridor acquisition. The preliminary city plan, recommended by the city staff, was presented and showed considerable areas designated in green for possible future _ park land. Kate stated at the 10/21/96 meeting that the met council would allow MUSA expansion in any portion of, or all of the area outside of the urban area, but the city could not afford all of the infrastructure at one time. Kate stated, the city staff's intention is to direct the area to the west of Galpin Rd. and north of Hwy 5, not south of Lyman Blvd. In the 12/03/97 letter, Kate addressed to the proposed north frontage road from Lake Ann Park to Highway 41. If you choose to continue the frontage road, along with a frontage road being added to the south of Hwy 5, what intersections will be closed and — which traffic lights will be removed? As an owner of a retail business in Chanhassen, and the location of my home being north-west of Chanhassen, the northern frontage road may be of interest to drive during rush hour traffic, knowing I will eliminate 3 traffic — lights. Or if you choose not to close any of the 3 traffic lights, and if you will be adding.3 additional controlled intersections at: frontage/Audubon, frontage/Galpin and frontage/Hwy 41, then the frontage road might not be a benefit for myself to drive on. Is it being considered that these additional intersections are likely to lead to potential problems concerning safety? Is there a study being done to explain what benefit the north frontage road will have as a residential use, verses the south side of Hwy 5 — frontage being mainly commercial use? My understanding is that frontage roads are used to limit the number of accesses to a — major highway, therefore reducing congestion., I read in The Villager and was later confirmed by MN DOT representative Evan Greene that there will be a traffic light added to Audubon and Hwy 5. It appears this will support added traffic delay on Hwy 5. In return it will benefit the area south of Lyman Blvd by the addition of a 3`d traffic light intersection for accessibility to Hwy 5. 1 Pertaining to the direction of the potential growth, I am referring to the added traffic on Hwy 5 from Hwy 41 to County Rd. 17, I am questioning the exceeding of the safety _ capacity by MN DOT standards. Even with the projected 2 additional lanes, which has been delayed once again until the year 2000. _ I question why the staff won't use the state's dollars to purchase the Hwy 212 right-of- way corridor land, to extend Powers Blvd. south to Pioneer Trail. I believe if Powers Blvd. was extended, this would be less costly due to the following: _ • less distance of road to build • less amount of grade alteration • no improved properties such as home-sites to acquire • approximately 1000 acres of raw farm land for development adjacent to Powers Blvd • largest undeveloped parcel closest to Chanhassen • 3 routes to the north to Hwy 5 with traffic light intersections, 2 roads to the south, and 2 roads east and west totally surrounding the 1995 study area • plus the proposed added south frontage road The extension of Powers Blvd will benefit in transporting adjacent home owners to and from their destinations. Also, the city will have less cost to produce a road for the City of Chanhassen Park Commission's 1st choice for the fall 1997's proposed park land purchase. With greater amount of feeder roads adjacent to the 1995 study area of Lyman Blvd., I believe the city will have lessor cash outlay to extend Powers Blvd., even with the 80% federal funding of the north frontage road. With the RALPH program in place, it allows the city to acquire the portion of right of way that it would need to extend Powers Blvd. to Pioneer Trail. That will show the state consistent value to proposed Hwy 212 right of way, like Eden Prairie and Chaska already have done to this date by land acquisition. It would be a step closer for MN DOT to know that the right of way acquisition is complete. We hired Loukes & Associates to provide an outside independent funded land use plan for alternative ideas. The city staff and council of 1996 chose not to accept those ideas. With the city receiving an offer in writing from Frank Fox dated 10/16/97 to acquire a chunk of land for park, with the portion being dedicated (pertaining to the MUSA expansion) south of Lyman Blvd, at a substantial park acquisition savings. It appears that two concerns are pending and are yet to be answered. • My belief is the cost basis of the proposed north frontage road from Lake Ann to Highway 41. • The city, in cooperation with Carver County are in the process of doing a road infrastructure study. Knowing the north frontage road is in a proposed position at 80% federal funding and 20% city cost, why would the city staff recommend the current proposed 1998 urban extension until the above 2 issues are completed? 2 Why can't you wait to make a decision after the results of the road study and actual costs of the north frontage road are calculated, so that all things can be taken into consideration? Is time an issue for presentation to the met council? As I review the 11/27/97 Villager article on Chanhassens long range planning with Bob - Generous outline, this reinforces the councils need to strongly consider the value in the economics alone. If the long range plans for the park and recreation are to take place, the city of Chanhassen will need to demonstrate to it's residents by curbing costs — through cuts or expanding the city for development where less infrastructure cost exists verses the revenue return. I realize this is only one ( myself ) persons opinion, and I don't know of all the special grants available that will support the future recreational — expansion. Wouldn't it be more beneficial to expand the city in the direction where it will bring in — considerably more revenue at less cost to the city? With the city's increasing operational costs and the proposed 17% increase in the city's portion of property taxes for 1998, have you compared the percentage of revenue that can be received. to the cost's of the infrastructure? It is known that 5% of the increase is for the park referendum passed pertaining to the area south of Lyman Blvd. If you are spending money to benefit a specified area and it's needs, such as a park referendum. then why — wouldn't you try to get a return of revenue from the same area? Comments were made by Todd Hoffman, Chanhassen Park Director, that there is no intention at this time to develop the proposed park acquisition area. Why should the Chanhassen taxpayers start paying for the cost of it, if we are not ready to develop the area? Kate acknowledge in her 12/03/97 letter the amenities are already in place for area — south of Lyman Blvd. The road infrastructure is presently being studied by city and county. As land owners our un-developed farm property has been tied up since 1971 , due to the original study for the proposed Hwy 212 1/2 mile wide corridor route. And, in 1987 when Chanhassen city council voted in favor of met council installing a new gravity sewer main in return for outside MUSA line property to increase building lot sizes from 21 acres to 10 acres this reduced the land value. Being outside the MUSA line, the right of way acquisition has been and will be difficult to acquire (unless the owner is in a distressed situation). Mainly due to the appraiser will only value the _ property as it is currently being used and or zoned for which is at agricultural value. Property sales further south and west inside the MUSA sold at a much greater value due to residential building lot sizes smaller than 10 acres. — I am continuing to pursue this issue because we have been approached by two developers. One of which has done considerable amounts of development in the Chanhassen area. They love the property and would like to tie as much acreage up while they work with the city and met council for a residential approval. What is the city staff's direction for future growth based on? Is there an influence knowing that additional land to be acquired for future park plays in MUSA expansion south of Lyman, hoping that if the land stays for farm use only it will keep the — acquisition cost for park land down? '3 If the city elects to pursue the 37 acres of Frank Fox's east portion, that Powers Blvd right of way (RALPH Program) looks even better. Easier access from Pioneer Trail and _ Lyman Blvd to the park. Is the Hwy 212 phase 2 and/or 3 delay possibly holding up the city from letting development go forward in the area south of Lyman Blvd? Is the area being set aside because it is unknown if there will ever be a Hwy 212 intersecting with Cty. Rd. 17? I support the option stated in the staff's 12/3/97 letter regarding the staging of MUSA expansion. Why not put it to use? The city of Victoria, to the west, with it's urban area expansion that has been approved by the met council will allow the city to decide what property based on developer request to be added. I hope from our original Land Group letter, Frank Fox's letter regarding the past potential landfill, and our current response to the staff's letter, the council will take all of the points brought up by us into consideration, along with the city and county co-op traffic element study, before making your decision. I prefer the city council to address my concerns, Kate has made it clear how the staff sees the future expansion. Can the city let us know why they favor and plan to expand north of Hwy 5 and west of the city. rather than south of Lyman Blvd? Now with the proposed new north frontage road in process, based on the staff's recommendation, will our area have to wait for a fair shake or will the city wait for the co-op road study and cost of north frontage road before supporting the direction for expansion? If not, it appears there will be a motion to accept the staff's recommendation. I am awaiting response from the mayor and/or council persons concerning all of the above issues, what your positions are, and answers to the underlined questions. Respectfull , fe4 fef r•y A. Fox cc: Mayor Nancy Mancino Kate Aanenson Mike Mason Steve Berquist Mark Senn Mark Engel Carl Schenk Julius Smith 4 December 17, 1997 Fax to: Carl Schenk & Julius Smith From: Jeff Fox Phone: 443-2811 Total Pages (0 Please see the following letter which is directed to the City of Chanhassen. Also, please assist me with the answers to the following questions: 1. What specific role does the Met Council play in determining MUSA line extension at the local government level? 2. The Met Council approved the most recent MUSA extension for Chanhassen. How did this occur? What other areas were considered? Who set what priorities? 3. Our property is specifically on the edge of the MUSA line, with nearby sewer lift station and other infrastructure, including recent expansion of Powers Blvd. (County Rd. 17). How can the Met Council facilitate our goals, with the objective for our property to be allowed for development? Sincere thanks for your assistance, Jeff Fox cc: Mayor Nancy Mancino Kate Aanenson Mike Mason Steve Berquist Mark Senn Mark Engel _ DEC-16-97 10:16 PM FRANK & BETTE FOX 941 793 3306 P.01 • DEC-16-97 09:28P Jeff Fox 612-474-7114 P.01 December 17"', 1997 Mayor Nancy Mancino, Members of thc; City Council City Planner Kate Aanenson As you know, t have offered to sell to the City of Chanhassen 37 acres of my Chanhassen farm (east of the proposed interchange Of Powers Boulevard and Highway 212) to be used as a park (the "Proposed Park"). As an alternative, I would like to propose the following: 1. I would dedicate to the City cf Chanhassen seven (7) acres of the Proposed Park _ and would sell the remaining thirty (30) acres to the City at a price of$32,500 per acre, for a total purchase price of S0'5,000. 2. In consideration of my dedication cf seven (7) acres of the Proposed Park, the City of Chanhassen adopt the Year 2000 Land Use Plan option to extend the M.U.S.A. line south of Lyman Boulevard. Accordingly, endorsement of this plan opticn by the Metro Court I would be required. These, of course, are very general terms, and the details of any such exchange/sale would need to be worked out in comprehensive agreement. Thank you for your consideration of this proposal. Respectfully, Frank J. Fc.)x 27990 Smithtown Road Excelsior, MN 55331 12/26/1997 11:48 6124432810 SERVALiOCF<: FE 01 Post-It`Fax Note 7671 Date . y\ `9 lveo s� To rem • i • I • & rrom J�'�• — Co!Dept_ Co. Phone a Phone x rl 7 (( Fax n I ~"I 3 Faz x Memorandum referring to error in letter dated December 17, 1997. December 26, 1997 To the attention of the mayor and council members of the city of Chanhassen: — Regarding the proposed tax increase I believed it was 17%, as stated on page 3 in the — letter, It has become known to me at this time that it is 8%. The difference in the amount of the proposed increase does not cancel my question. I apologize for any inconvenience this error may have caused in your review of and response to the letter. Jeffrey A. Fox 5270 Howard's Point Rd. — Excelsior, MN 55331 474-7118 cc: Mayor Nancy Mancino Kate Aanenson — Mike Mason Steve Berquist Mark Senn Mark Engel CITY OF CHANHASSEN 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 �r . '. (612) 937-1900 • FAX (612) 937-5739 December 3, 1997 Mr. Jeffrey A. Fox 5270 Howard's Point road OF Excelsior, MN 55331 Dear Mr. Fox, This letter is in response to your letter dated No'.c tuber 17, 1997, specifically addressing the four questions that you asked. I have attempted to address these questions and hope that you will have a better understanding of the city's policies. 1. In 1990 the guide plan shows the 2008 area in question was to have the 1995 development future plan whip, are we not following the original guide plan? The Highway 5 and 41 intersection as well as the land area south of Lyman Blvd. were designated in the 1991 Comprehensive Plan as a 1995 Study Area (see attachment). This meant these areas were not guided for future land uses and it was the city goal to study this area in 1995. Land use designation and a request for urban service extension are two separate issues. The city undertook a study of this area in 1995. The study was called the Highway 5 Corridor Study. The purpose of this study was to guide(designate future land uses), locate the proposed northern frontage road, and review and approve the Environmental Assessment document. Highway 5 was originally scheduled to be upgraded in 1998. This road would represent a collector through the city that would carry a significant volume of traffic. The purpose of the frontage road is provide an east-west connection for local traffic, thus reducing local trips on Highway 5. Highway 5 is currently proposed to be widened in the year 2000-2001. The city undertook a separate study for the area south of Lyman Blvd. This study was called the Bluff Creek Management Plan. As a part of the Comprehensive Plan updating process which the city is currently undertaking, the city must demonstrate that there is adequate infrastructure in place. Because the city has already invested in sewer extension, the EA document for the frontage road, and will be participating in some of the acquisition costs, it seems logical that this area be the next area to be brought into the MUSA. This is my recommendation only. Ultimately, the City Council will decide this issue. State law mandates that the city complete updating their Comprehensive Plan by December, 1998. A component of this plan will be criteria for MUSA expansion. Mr. Jeffrey Fox December 3, 1997 Page 2 2. Have you taken into consideration the additional traffic you'll be adding to Hwy. 5? The city has taken into consideration the traffic on Highway 5. The city is currently working with Carver County on updating the traffic element of the Comprehensive Plan. The city has always anticipated the construction of Highway 212 when designing the ultimate traffic demands for the city. Without the construction of Highway 212, there may be additional traffic on Hwy. 5 but just the same, there will be a significant increase of traffic on all east-west streets in the city including Lyman Boulevard and Pioneer Trail. All of these traffic issues are being reviewed as a part of the traffic study. Upgrades to Lyman Boulevard as well as other streets in the southern portion of the city may be required before additional land can be developed in the southern portion of the city. 3. With the amenities in place fi•oni past planning why are you changing direction? It is my opinion that current planning has not changed from what was in place in the 1991 Comprehensive Plan. The 1991 Comprehensive Plan identified two areas to be studied in the future (1995 Study Area). Both of these areas were given land use designations in either the Highway 5 Corridor Study or the Bluff Creek Management Plan. Most of the area south of Lyman was given a residential land use designation. As a part of the Bluff Creek Management Plan, the city held hearings regarding future land uses on your property. The recommendations to the Planning Commission by Loucks and Associates was given consideration by the City. Ultimately, the Council chose not to guide the property as recommended by the Louck's study. You certainly have the right to request a change when the property is ready to develop. Staff is preparing a few options regarding the staging of MUSA expansion. To date the areas being discussed are: •- •-efficient infrastructure plan (based on available utilities and services) • fixed acreage over five year increments • maintain a five year supply of vacant developable land Even if the city was completely within the MUSA, it be would be impossible to leapfrog _ development throughout the city. The city could not finance this type of development pattern. The purpose of the Comprehensive Plan is to provide a fiscally responsible and orderly development plan. Hearings regarding the Comprehensive Plan goals and policies and the _ staging of the MUSA are proposed for the winter and spring of 1998. You are encouraged to voice your opinion at these meetings. 4. W/n'did Chanhassen make County Road 17 a priority for updating 4 years ago, when it appears that now you have no plans for this need until the year 2008? Mr. Jeffrey Fox December 3, 1997 Page 3 Carver County and the city worked to improve Powers Boulevard between Lyman Boulevard and Highway 5 because it has been planned since 1990. This segment of Powers Boulevard has experienced increased traffic. The reason the road wasn't extended south of Lyman is that unless Hwy. 212 is built, the road won't go anywhere at this point without the Hwy. 212 connection. It is staff's opinion that this portion of Powers Boulevard will be built with Hwy. 212. It would be wise to have this segment built with state dollars. I hope that I have answered your questions. I invite you to participate in the Comprehensive Plan public hearings. Watch the Chanhassen Villager or check the City's home page to find the hearing dates. Sincerely, K aiu Aco\o/n4gh Kathryn R. Aanenson, AICP Planning Director c: City Council Frank J. Fox Sever Peterson Gil Laurent Earl Holasek — Bruce Jeurissen - - _ .../V4 ••J • • ...1•••• 1•• •-•'.. • ). *.,,, ....".• •••'.: --• - . ,..„ . • S..1 1 . .• . 4.71 ....--..—, __„„,......1. . . , -z._--', 1,...,• :„ ......• :L• ..:., ..,,,.., .....,,--,,,...: 4,2. .„.;--. .. I. . , - _ N_ 11111111..... Wein! %.1.‘iviaz - b., • ' f !. •-..••. • ..`.-...'.'.;.: -:-.-4, — ..sonlOrll i NI , I. -.. yam ; ir '. J • \\,... ' 1 -• • ,.‘ • P :1 )7 ..-s s• •• ' „ 'S •• •., • , , t• -•••e•f••• ...'.•'•• •• - • • 4 v. ' ....'N114'''......‘'....._.....:::....._. ;:---- - \,,, . .7.1:1..:`',2,...S/...••••1‘''''....1' ' , 141 Ili I ' J • •• ...".. -'..":.;2 ' ' - , . • . - .:, ''.:'•::41. .".•--1 .:•:!-.1 -.• ":---'• ... N .1-,,,...., .-• • . . -. • .--, . - ....,, . • . , - •.--..1-‘'..%I.'',../--,•-:.• -.. k.*,1.-...-.'-i ., •• .•t•,,....:'.,f,',".. •1.1.-. -.. 1 .,.• .. . -1 '''• i. 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I'd like to take this opportunity to share my experience and to suggest alternatives for deciding where and when the various rural areas remaining will be added to the Metropolitan Urban Service -' Area (MUSA). It appears that the current approach being studied is to look at existing sewage lines, lift stations, and water main facilities exclusively to determine the most economic sequence for their expansion. While utilities infrastructure was a consideration in 1991, the methodology ultimately used was based on transportation issues, the need to develop Bandemere Park, and a strong belief that the city should preserve, for as long as possible, those areas where agriculture is actually being practiced in Chanhassen. We _ felt that these issues outweighed the benefits of optimizing the sequence which sewage disposal and water distribution systems are expanded. While land must be added to the urban area in order to achieve the City's and Met Council's goals, the action of incorporating more land in each case should be done in a way that least impacts remaining agriculturally active land. Building lift stations or even — placing the MUSA line close to Ag land tends to attract speculators who purchase the land at higher prices than Ag use can justify. These parcels are then converted to interim uses and then, without fanfare, one spring a Commercial Nursery business or — Contracting Yard exists where the previous year, there was a corn field. Eventually all the pipe and line will be installed and all the corn and soybean fields and cows will be eliminated. Nevertheless, we can control the sequence in which these things will occur. — (By the way, abandoned farm sites make great contractors' yards.) I have created the attached map which shows the remaining land used for Ag purposes — in our city. In planning our next MUSA line extension, I recommend that we maintain the still relatively large and uncorrupted area south of Lyman, north of Pioneer, west of extended County Road 17 and east of current 17 as Ag land or until all other non- -" agriculturally productive areas are developed. To expand the amount of land for TIMICITYLTR 01/08/98j - urbanization, we should first absorb those lands which have already been degraded to interim uses. Moreover, you will find that property already converted to interim uses are adjacent to existing urban areas, park facilities and major transportation routes e.g., Highway 101 and Pioneer Trail. I would like to state clearly that I am not suggesting that we maintain Ag land in perpetuity in Chanhassen. Neither is it possible, nor is it fair to landowners currently engaged in Ag production. We can, however, produce a rational plan for urban growth which allows those farming a clearer idea of what the future holds and how best to plan their investment. At the same time we can preserve for the community our heritage of corn and soy bean fields, cows and even pigs - as long as possible. Respectfully, Titin' A. Eigrgt TAE:j TIM\CIT LTR O1/08/98j -2 ly. 1:P• ••t /;� "-v Z-311%Vit 12 i_::. '•�( �•'r \r l s=v11:. 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' iii IP -' ';:"' '.'%•0474 -.,.., ''' .?Mir 1 i .... \/...171r-•_ •• // tt f1! 7:MI 11111.1014 r`l1111 .17.• ,./// , j,T,1 © ''> ig• v'• 110•01k worrlit 6% - 11111Aigg 4.71411FP '; / N•7--!---15-1:- Tilr,,// dim v0. •A \ •; 1. 14 __, ,a wr firliMAIMF\,\als / �'' \_i r/ \ /\ ISI 0 I. -_ :,..ii.r( kA*, ,: ,, 4.5? 1 .i P\74/0 i / , . . . . . . . ji! iIIII /� I � R= i j� g i. r, JiØtj f - ;I ,I.11iu i 3 r i 3t i it i i ) 1W Wstwooa --- --=-= , 1,-7---7..,1--,---_---:-___"=-1 ,,. - Se`Tler.wag. 1 P,elimi••ry ) ( 7.1 u1atti Plan E COMPREHENSIVE PLAN DRAFT JUNE 1998 CITY OF CHANHASSEN 690 CITY CENTER DRIVE Chanhassen Comprehensive Plan June 1998 Draft - Chapter 1 Land Use - Chapter 2 Housing - Chapter 3 Natural Resources Chapter 4 Park and Open Space Chapter 5 Transportation Chapter 6 Sewer and Water Chapter 7 Capital Improvement Projects COMPREHENSIVE PLAN UPDATE 1998 LAND USE • That this comprehensive plan, coupled with the Introduction support of the people of Chanhassen, its elected officials, and staff be utilized as a basis The Metropolitan Land Planning Act requires local for future decisions on growth within the governments in the seven-county metropolitan area community. - to develop comprehensive plans. The act also requires the Metropolitan Council to review the The city has made three significant changes to the comprehensive plans of local governmental units to comprehensive plan since its adoption in 1991. In determine: 1994, the city adopted the Surface Water Plan. This plan guides the water quantity and quality • conformity with metropolitan systems plans; issues in the city. In 1995, the city approved the • consistency with other adopted plans of the Highway 5 Corridor Study which recommended — council; and certain land use changes along the Highway 5 • compatibility with each other Corridor. The Bluff Creek Watershed plan was approved in 1997. This plan recommended land - The comprehensive plan was last updated in 1991 uses in the Bluff Creek Watershed and the and included a request for Metropolitan Urban southern area of the city. Service Area expansion. In 1997, the Metropolitan - Council completed the Metro 2040 Policy DEVELOPMENT INFLUENCES Framework which directs the growth strategies for the seven county metropolitan area. This policy Map - Development Influences _ framework states that based on current growth projections, the City of Chanhassen will be within The Metro 2040 Policy Framework is one of the the Metropolitan Urban Service Area by the year guiding principals for determining the development 2020. It is the intent of this plan to be consistent of the city. The City of Chanhassen has the ability with the regional system plans while providing a to implement this strategy through its land use and vision for ultimate build out of the physical zoning control. development of the community. The growth of the Twin Cities metropolitan area The basic development concept under which this and particularly the southwest portion of the area plan has been formulated is best stated by the will continue to strongly influence development in — overall goals and policies it contains. These goals Chanhassen. and policies are explored in detail elsewhere in this Plan. In general terms, the Chanhassen Over the past two decades, the southwest _ Comprehensive Plan has evolved under a number portion of the Twin Cities metropolitan area has of premises: experienced significant new development partially in response to the existing • That the City provide a residential environment transportation network and the diverse which accommodates diverse income levels topography and scattered lakes which make the and housing style preferences. Single family area visually attractive. detached housing and related neighborhoods — will, however, continue to be the dominant land Chanhassen is surrounded by major industrial/ use and housing type. office centers in Minnetonka, Eden Prairie and Chaska. Minnetonka and Eden Prairie's supply of - • That there is a belief that the mix of uses industrial land, to satisfy large scale users, is experienced in Chanhassen in 1990 provides a rapidly diminishing. Chaska has an active quality lifestyle and is representative of the industrial area which has extended and wrapped preferred land use mix into the future. around a portion of Chanhassen's western boundary. The lack of land in adjacent • That development be consistent with the communities has contributed to the demand for preservation and enhancement of significant industrial land in Chanhassen. natural features and aesthetic amenities. 1 COMPREHENSIVE PLAN UPDATE 1998 The Metropolitan Council has made the following study of land absorption and available acres. this forecasts for household and land supply and number should be 3,556 gross acres of demand. residential land use. Metropolitan Council Household and Land Supply and Demand The 39% multi-family is slightly high. This is Figure 1 based on the rationale that the city has already _ Regional 1990 1995 Est. 2000 2010 2020 approved a significant number of plats that are developed at the low density range. These Households 875.000 645.000 1,006.000 1.140.000 1.275,000 approved lots will take until the year 2000 to — Employment 1.285.000 1,390,000 1,515,000 1,710,000 1,800,000 absorb. The city has demonstrated that in the Population 2,900,000 2.450,000 2,600,000 2,850,000 3,100,000 future MUSA expansion area (years 2000-2020), this number can be achieved and would be 41%. Chanhassen 1990 1995 Est. 2000 2010 2020 Households 4,016 5.198 6.300 9.500 13,500 Residential development has also been influenced by the southwest area's general Employment 4.605 6.538 8,000 10.160 10,600 growth trend. Chanhassen's residential building — Population 11,732 15.231 17,900 25,000 34,500 permits totaled 48 in 1980. By 1990, there were 197 residential permits. The city's total Community Land Supply and Demand residential building permits grew to 478 in 1995. Figure 2 In 1995, the city issued more permits for multi- family dwelling units than for traditional single Estimated Vacant Land Estimated Land Demand Additional famil homes. The city estimates that the 1995 1995-2020 MUSA y — Needed average number of building permits over the next 1995-2020 20 years or the ultimate build out will be Total in MUSA Total in MUSA approximately 300 per year. 5,188 3.209 4.614 4,614 1.406 All land use categories are influenced by the availability of transportation facilities. Community Housing Mix and Residential Density Assumptions Chanhassen and the remainder of the southwest - Figure 3 area are served by an extensive roadway network Single and have convenient access to airport facilities. Multi-ramly Family Percent of Percent Percent of Density Overall Flying Cloud Airport in Eden Prairie provides Land in of Single Density Multi-family Units Acre Density Units Acre and Other Avg.of'90 Units.Acre general aviation service for business customers Residential Family Avg.of Use Mousing .90 i1..eo Housing a d0 to 1990 Only and private recreational pilots. Planned 199 to 1990 improvements and improvements currently under — Current construction promise to improve roadway access and Recen 55% 82`b 1.6 18°: 10.7 1 7 Trends to Chanhassen. By 2002, TH 5 will operate as a four-lane facility from Powers Boulevard to State 1995-2020 Growth 55% 61% 2.3 39% 10.0 3.3 Highway 41. Assunpuons •Current single family and mule-family density figures are the average of 1990 density and the As part of the city's development review density of development occumng between 1980 and 1990. The overaI density is the 1990 density only. process, the city attempts to incorporate "All 1995-2020 growth assumptions apøy ory to the sided growtn. transit opportunities within each non- residential development. In other instances, the city tries to encourage mixed use The City of Chanhassen through its own detailed developments which permit individuals to analysis differs with some of the forecast live and work in the same area. The city assumptions by the Metropolitan Council. The predicts a 1:1 relationship between the total city concludes that the projected employment _ dwelling units in the community and the numbers are currently too low, therefore, the number of employees in the city based on 2020 forecast is also low. The additional area the historical data and future forecasts. __ needed for MUSA expansion between 1995-2020 is also too low. Based on the comprehensive 2 COMPREHENSIVE PLAN UPDATE 1998 COMMUNITY ASSETS AND LIABILITIES Chanhassen has an identifiable downtown area which is an asset lacking in many suburban In 1996, the City Council, members of the Planning communities. The area provides a variety of goods - Commission, Park and Recreation Commission, and services as well as employment opportunities. Public Safety Commission, and city staff met to The city also has a strong industrial employment discuss a strategic plan including strengths and sector. Both areas have seen intensive — weaknesses of the city. The strengths and development and growth in the 1990s. As the city weaknesses that were discussed include the need continues to evolve and more households are for housing diversity, long term capital created, the demand for commercial services _ improvements for public facilities and infrastructure, increases. The industrial sector has added growth management, balanced tax base between 600,000 square feet since 1995. making the residential and commercial/industrial, employment in the city nearly 8,000 jobs. Major _ encouragement of additional industrial land use, employers include Rosemount, Inc., Pillsbury provide for additional park and open space Bakery & Food Service, DataServ, The Press, opportunities. and management of natural Instant Web, and United Mailing. Industries include resources. These issues reflect the same printing, medical products, industrial controls, community assets and liabilities identified in the baked goods and bulk mailing. 1991 comprehensive plan. Chanhassen is currently undergoing a period of - COMMUNITY ASSETS urbanization. The population of the community has continued to grow at rate of about 1000 people per All or part of ten lakes and numerous ponds and year. Despite this growth and the corresponding influx _ over 350 wetlands lie within Chanhassen. Bluff of new development, the city still maintains much of Creek runs the entire length of the city and there its original character, a trait which most new residents are numerous bluffs and wooded areas. consistently mention as a reason for locating within Collectively, these constitute one of the the community. By ensuring that future developments community's most notable assets. contain adequate open space areas, Chanhassen should be able to maintain the type of open Chanhassen has a number of parks dispersed environment that it now enjoys. — throughout the community. These facilities coupled with public and semi-public uses such as the COMMUNITY LIABILITIES Minnesota Landscape Arboretum and the Lake — Minnewashta Regional Park provide recreational Land costs continues to be one of the major facilities to meet their active and passive impediments to development in the city. The price recreational needs. not only effects commercial and industrial development but the ability of developers to provide affordable housing. Ensuring that the land -;_F supply in the Metropolitan Urban Service Area is 4��� • ...; not unduly restricted should help land price for �.�► " reaching overly inflated prices. ;� 4."4: ":-`u When viewing a map of Chanhassen's present a a I . .t f = transportation network, it appears to provide an if i: adequate means of moving traffic into and out of • t ' �. " - * the community. On the ground, however, _,' ,l ,-b ��POW(+[ " -- - - - problems with the system quickly become evident. _ The most notable problem is the existing heavy . traffic volumes which cause major arterials to become congested at peak times. Planned . highway improvements will substantially contribute • t. :.3'K.' � - to the solution of this problem. Future road — improvements will have an impact on the city's 3 COMPREHENSIVE PLAN UPDATE 1998 ability to expand and develop. There are several Chanhassen's 1981 Comprehensive Plan landowners in the city that are holding large tracts contained a MUSA line alignment that was of land from development in the existing MUSA. prescribed by the Metropolitan Council in 1976. These stakeholders have the ability to retain large The line was intended to define the limits of growth estates whether they be private individuals or up to the year 1990. In 1986, the City of institutions. This land accounts for approximately Chanhassen signed an agreement with the _ 475 acres that will not be developed in the next 15- Metropolitan aste Control Commission l for anaMetropolitan he contruct construction the 20 years. Lake Ann Interceptor sewer line. A condition of EXISTING LAND USE that agreement was a change in the target date of Chanhassen's MUSA line expansion from 1990 to Chanhassen comprises a total of 23.78 square 2000. This proposed comprehensive plan intends miles or 14,760 acres. Lakes and rivers constitute to guide the city to its ultimate build out which will 11% of the city or 1,573 acres. The land uses be in the year 2020. The following is a proposed for the year 2020 have accounted for comparison of the land use designation in 1980, those areas that were previously unguided or left 1991 and proposed 2020. _ vacant. 2020 1991 1980 _ Figure 4 Comprehensive Comprehensive Comprehensive Plan Plan Plan Land Use Acreage Percent Acreage Percent Acreage Percent Commercial 204 1% 295 2% 147 1% Office/Industrial 1 .291 9% 1,181 8% 443 3% Office 117 !% 74 0.5% 0 0 Park;Open Space 1 .707 12% 2,509 17% 1.919 13% Public/Semi-Public 1,108 8% 1.181 8% 1 .181 8% Residential-Large 2.247 15% 1,624 11% 0 Lot Residential-Low 5.615 37% 4,723 32% 4.576 31% Density 4% 147 °° Residential - 562 4% 590 Medium Density Residential-High 202 1% 221 1 .5% 0 Density Mixed Use 134 1% 148 1% 0 �rf Vacant 0 0 1,328 9% 4.871 33% Undevelopable 1 ,573 11% 886 6% 1,476 10% (lakes/rivers) TOTAL 14,760 100% 14,760 100% 14,760 100% large lot residential is combined with low density " high density residential is combined with medium density residential ***mixed use ws not a land use designation in 1980 4 COMPREHENSIVE PLAN UPDATE 1998 RESIDENTIAL DEVELOPMENT The first recorded residential plat within what is 1980 Land Use now the City of Chanhassen occurred in the Lake Minnewashta area in 1884. Since that time, a Commercial 1% OffiCe/Ind R significant amount of residential growth has taken Densit3% ,o„ place. Housing development over the years %kcal continues to be strong in the city. The city 33% reached a peak of housing permits in 1995 with R-LowDer>sity 478 housing building permits issued. In that year, 3,% there were more multi-family permits issued than single family detached housing permits. The housing types have slowly been moving away Parks/Open Public/semi from the dominance of the single family detached Space Undei.elopable Public housing unit. While development patterns of the 13% 10% 8% past will make single family detached the dominate housing type in the city, the proposed future land use for housing provides for a variety r. 1991 Land Use of housing types and densities. The city supports Vacant Commercial life cycle housing, meeting a variety of housing y, 2% Of ce/lnd Office needs. 8% 0.5% Paiks/Open Space R-Medium PROJECTED RESIDENTIAL MIX 17% Density 4% Market conditions constitute one of the strongest %O/ UndeNebpable individual influences on housing type. Energy 6% costs, financing costs, material costs, land prices R-low Density PubliciSemi 32°, and inflation, and interest rates have significant Public impacts on buyer preferences. In order to forecast 8% Mixed Use a reasonable future housing composition, density 1% R-Large Lot R-High Density classifications must be defined. Since housing 11% 1.5% types are difficult to forecast, the Chanhassen land use plan will focus on density rather than specifying housing types. This is intended to 2020 Land Use provide flexibility in the development process to Office Ind accommodate changes in housing styles. Lakes/Ri'ers Commercial 9% 11% 1% Office Four residential density categories are used in Public/Semi 1% R-Medium the Comprehensive Plan. Public y 4% 8% Parks/Open Residential - Large Lot (R-LL) — Space t2iDevelopments within this category are likely to be / either large-lot estates or rural, agriculturally Mixed Use 1°,04`- R-Low Density -oriented dwellings. Large-lot residential is R-Large Lot .. 37`'° presently found generally south of Lyman 15°° R-High Density Boulevard. Other areas of large-lot residential 1% exist north of TH 5 along Lake Lucy Road and south of TH 5, east of Galpin Boulevard. 5 COMPREHENSIVE PLAN UPDATE 1998 Large-lot residential developments are subject to Residential - High Density a minimum lot size of 2.5 acres with an overall density limitation of one unit per ten acres. New The high density category which includes units large-lot residential subdivisions proliferated in with a maximum net density of 16.0 units per acre 1987 immediately prior to enactment of a one unit accommodates apartments and higher density per ten acre density limitation in the zoning code. condominium units. Within this category, an — Due to the current density restriction, major average gross density of 100 units per acre has expansions of the R-LL use category are not been used for projection purposes. expected. The only means by which new lots can be created is from clustering 2.5 acre lots at a r vi gross density of 1 home per 10 acres. Thus, the j?' .i, number of potential rural residential lots has been , — greatly reduced. For projecting land demand, an i average of 0.4 net units an acre was used. - _z Residential Low Density (R L) r - _ _- . - - _ '* The predominate type of development within the -.+ %"'4._ µ — -, residential low density category is single-family . ,�. _ _ • . detached housing. Net densities within this _ w category range from 1.2 to 4.0 units per acre. For � ; pprojection of land demand. an average net density - of 2.42 dwelling units per acre will be used in this • • . plan. . Residential - Medium Density (R-M) INDUSTRIAL DEVELOPMENT The medium density designation is intended to Chanhassen has the historical development accommodate multiple units including duplexes, pattern that is of an agriculturally oriented townhouses and lower density apartments. A net community. Until the mid 1970's, a feed mill was density range of 4.0 - 8.0 units per acre is located within the downtown area. As the covered by this category with an expected community grew and the feed mill was displaced — average net density of 6.0 units per acre. by other uses, the city shed much of its agricultural image assuming more of the role of a metropolitan _ ;BUILDING PERMITS) suburb yet retaining much of its original rural 5. i flavor. 15 ' — Prior to 1980, Chanhassen did not have a ustrial base 1 � olgnificant pportunitiesdwere locatedprimarilyemployment iimarilyoutside of the 35n f\ community. In 1980, nine locations existed within — J00 ' the city which were classified as industrial: the 750 • f BMT Company, M. A. Gedney Company, Apple :., , Valley Red-E-Mix, Statewide Auto Salvage, the Moon Valley Gravel Company, Instant Web, 150 ' Animal Fair, The Press, Inc., and businesses in 100 - At'lthe first phase of the Chanhassen Lakes _ SO - fBusiness Park. 74 75 76 77 70 79 8O 81 R2 83 84 85 86 87 88 K9 90 91 9' 93 91 95 96 97 From 1980 to1990, industrial expansion continued to occur. The community became the 6 COMPREHENSIVE PLAN UPDATE 1998 home of corporate offices for Rosemount, Inc. that effort diminished by the construction of and Pillsbury. Approximately 1,200 people are commercial centers oriented to highways outside — employed at the Rosemount facility alone. Both the business district. of these businesses, as well as several others, established campus environments containing Chanhassen's commercial development has large areas of open space. Since 1995, the city occurred almost exclusively within the downtown - has added 600,000 square feet of office/industrial area along West 78th Street. There is a variety uses. of commercial establishments including retail services and entertainment-oriented, household Based on a comprehensive employment study by services, and auto-oriented services. In addition the city in 1997, there is currently 8,000 jobs in the to the downtown area, the city contains two city. The Metropolitan Council estimates that there smaller neighborhood commercial centers, one at _ were 6,538 in 1995 and will be 8,000 jobs by the the intersection of TH 7 and TH 41, and the year 2000. The city believes these numbers are second along TH 101 immediately south of TH 5. low. The city has documented 470 businesses that There is a neighborhood commercial area west have approximately 8,000 employees. Of the 470 of the new alignment for Hwy. 101 and south of - businesses, 185 are home based. The city West 86`^ Street, and north of Hwy. 5 just east of believes the number of home based businesses Hwy. 41. The Villages on the Pond Development will continue to grow. located east of Hwy. 101 and south of Hwy. 5 was given additional commercial development as The city will ultimately have 1,291 acres or 9% of a part of a mixed use project. its 2020 land use industrial/office guided property. The proposed area for office industrial expansion A substantial portion of Chanhassen's commercial includes the area south of Lyman Boulevard needs are satisfied by businesses located in adjacent to the City of Chaska and north of TH adjacent municipalities. Downtown areas, smaller 169/212 in the southern portion of the city. With the commercial centers, and a major regional shopping proposed MUSA expansion, there will be an center in Eden Prairie all provide goods and additional 205 acres of industrial office guided services to the people who live in Chanhassen. property. Currently, the city has only 80 acres The City continues to promote the expansion of the - vacant industrial property. Based on current CBD as a full service retail node for our residents. industrial development, the industrial land supply It has been the long term goal of the city to have should last until the year 2005. There is the majority of the commercial development occur - approximately 250 acres of vacant land (not in the downtown core. There will be additional platted). Based on the proposed MUSA staging commercial development in the next 20 years but it plan, there will be 105 acres included in the year will be developed as a support use to a PUD or a 2005 and another 105 acres in the year 2015. mixed use development. It will not be developed as Highway or General Business District elsewhere in For projecting land demand, the following the city but rather a compliment to a mixed use of assumptions were used; net area x 0.9 (for right-of- PUD development. way) x .25 (for floor area ratio). Commercial development comprises only a small COMMERCIAL portion of the currently developed land within the City of Chanhassen. In 1997, there were 85 acres The City has maintained a long standard policy of of vacant commercial zoned land. Ultimately, the directing commercial development into the Central commercial land use will constitute on 297 acres or — Business District. Chanhassen is rather unique 1% of the 2020 land use. among suburban communities in that it has historically had and maintained an active Commercial development in Chanhassen can be downtown business community. In recent years, categorized in one of three general types. there has been substantial public and private Categories include non-sewered commercial. investment in furthering development in this area downtown commercial, and neighborhood and there is no desire on the part of the City to see 7 COMPREHENSIVE PLAN UPDATE 1998 commercial. Each of these types of development 2. Commercial uses should be designed so are addressed separately as follows: that existing trees and low areas be preserved to provide additional screening Commercial for adjoining residential properties. Non-sewered commercial developments exist 3. The development would only be along Chanhassen's southern border adjacent to considered under the PUD ordinance TH 169/212. Uses in this area generally have a where a plan consistent with the city highway orientation such as gas stations, motels, goals can be created. - etc. Existing businesses are considered "grandfathered uses" under the present zoning 4. Architectural standards should be of high ordinance. The proposed land use recommends quality construction utilizing brick and elimination of the area and conversion of this area glass. Architectural detailing should to office/industrial when municipal services are recognize the close proximity of adjoining available which is proposed in the year 2015. residential parcels. Areas of high utilization should be located away from - Downtown Commercial adjoining residential parcels to avoid direct impacts. Lighting and signage The majority of Chanhassen's recent commercial should be of uniformly high quality _ development has occurred in the downtown area. recognizing the site's sensitive location. Land use plans and zoning requirements for the Site landscaping must also be of district establish various types of commercial unusually high quality. areas, establish office areas, and provide opportunities for a range of commercial goods 5. Commercial development should be and services. The zoning found in the downtown focused and designed to ensure that area is CBD (Central Business District), BG such a development of this property will (General Business), and BH (Business not serve to induce additional Highway). commercial development in this area of the Highway 5 corridor. Neighborhood Commercial PUBLIC AND SEMI-PUBLIC DEVELOPMENT Neighborhood commercial uses involve - convenience grocery stores, day care facilities, Public and semi-public facilities cover a wide range etc. or those uses that meet the daily needs of the of uses within Chanhassen. Included are the residents. In the future, neighborhood commercial Minnesota Landscape Arboretum, Minnesota River areas may expand commensurate with the Wildlife Refuge, City Hall, the fire stations, the development of new residential neighborhoods, American Legion, schools, Camp Tanadoona, Bluff particularly those that are removed from the Creek Golf Course, churches and beach accesses downtown commercial core and are part of a for neighborhood areas. The provision and residential area, PUD or mixed use development. distribution of these facilities have a substantial The districts should reflect the character of the impact on the development of the community. The neighborhood through design. The zoning location and number of fire stations for example, - standards for these areas in a BN (Business determines what response times can be expected Neighborhood) District shall be as follows: in various areas of the city which in turn has an impact on fire insurance ratings and the premiums 1 . The commercial development would need paid by property owners. to be designed to be inherently low scale with a neighborhood orientation. As At this time, the city believes there is no need to such, it should not be in competition with provide municipal services to the Lake commercial development elsewhere in Minnewashta Regional Park, Camp Tanadoona or the community, particularly in the CBD, the Minnesota Landscape Arboretum. These land BG, and BH Districts. uses have limited need for municipal services and 8 _. COMPREHENSIVE PLAN UPDATE 1998 they are not anticipated to change their use in the MIXED USE next 20 years. The Minnesota River Wildlife Refuge is located south of TH 169/212 and is The plan designates areas around the guided as open space or large lot residential and proposed TH 101/TH 212 interchange as because the vast majority of this area is in the mixed use. This category has been established flood plain, municipal services will not be extended to accommodate either commercial or high south of TH 169/212. The Bluff Creek Golf Course density residential developments. This area is is currently outside of the MUSA. It proposed to be currently in the MUSA. The commercial use is added in the year 2015. There is no need at this intended to support or compliment the high _ time or in the near future to provide municipal density development. If the site developed services. If the golf course use changed to a low commercially it shall be a business density land use, designation has also been neighborhood commercial zoning district. The provided. Ultimately, this land use will comprise mixed use district consists of only 1% of the 8% of the city in the 2020 land use or 1108 acres. 2020 land use or 134 acres. AGRICULTURE PARKS AND OPEN SPACE While the city's history has seen a continuing The 2020 plan does not provide for additional land general pattern of displacement of agricultural use for parks and open space, although it will operations by urban development, agriculture as a occur as a part the proposed development land use has been diminished by the expansion of standard being established in the Bluff Creek urban serviced residential, commercial and Overlay District and neighborhood use as _ industrial developments. Farming activity subdivisions occur. The plan identifies major park continues on a leasehold basis. Consistent with expansions and primary trail corridors. The 2020 the Metro 2040 Policy Framework, the city does Land Use Plan depicts 1,707 acres of parks and not provide for a purely agricultural land use, but open space or 12 % of the land use. The supports the preservation of this use in the greater recreation section should be consulted for Carver County area. additional material on the expansion of parks and the provision of new park facilities. The City has a policy of protecting agricultural lands from premature development until such time POLICY ISSUES as services are available and demand warrants further conversion of properties used for Buffer Yard Concept agricultural purposes. One of the active family farms in the community is proposed for MUSA Buffering of residential development located in expansion in the year 2005. proximity to non-residential uses was a major concern of the Planning Commission. Wherever OFFFICE/INSTITUTIONAL possible, natural features are being used to create the buffer. When natural buffering does In 1995, the city worked with Chaska School not exist, the plan establishes a formalized buffer District No. 112 to develop an elementary school. yard concept. Buffer yards are 50 feet in depth site. This site included an elementary school and along public right-of-way and 100 feet in depth city recreation center. The city does not anticipate along interior lot lines. Developers platting and any additional public schools being built in the city. developing industrial office property would be The city has provided in its capital improvement required to set aside these buffer yards through program the construction of a new public works permanent conservation easements as well as to facility and the expansion of the Chanhassen/ actively berm and landscape them to improve Carver County Library. The 2020 plan designates their ability to buffer incompatible uses. The _ a location along TH 101 and Pioneer Trail as location of these areas are illustrated on the map. office. The 2020 land use plan calls for 1% of City ordinances have already been modified to office/ institutional or 117 acres. establish this requirement. 9 COMPREHENSIVE PLAN UPDATE 1998 MUSA Impact On Existing Large Lot PUD Allowance Residential Development The PUD zoning district may allow up to 25% The impact of the MUSA line on large lot support or ancillary uses if deemed appropriate by residential developments constructed prior to the City Council. 1987, is a concern of the city. A number of these subdivisions were platted in the period immediately MUSA STAGING prior to the adoption of ordinance changes eliminating the potential of 21/2 acre subdivisions in Following is the city proposed staging plan and the rural residential area. These developments, documentation. This plan takes into consideration which are still being built out at the present time, the land uses that were approved by the city as a contain homes that are equipped with on-site wells part of the Bluff Creek and Highway 5 Studies. and sewage disposal systems. The on-site The land uses encourage compact contiguous sewage disposal systems are built to required development. It efficiently utilizes the existing and standards and an alternate drainfield is provided proposed infrastructure and capital investment. _ for future use if necessary. These systems The staging plan acknowledges the character of represent a substantial investment on the part of existing development and the desire to be the homeowner and are currently an consistent with the Metro Regional Growth environmentally acceptable method of dealing with Strategy. waste generated from this type of development. It is the policy of the city that these subdivisions LAND USE GOALS remain large lot with a minimum lot size of 2'h — acres. Requests for changes may be made GOAL incrementally (on a case by case basis) but it is the city's policy review land use and zoning Achieve a mixture of development which will _changes on an area wide basis. assure a high quality of life and a reliable tax base. Comprehensive Plan Zoning Map Inconsistency DISCUSSION Regardless of a property's land use designation, properties that are not served by urban services Chanhassen's early development was shall not be rezoned to a zoning category predominately single family residential. Industrial consistent with the comprehensive plan until such and commercial uses as well as different housing time as urban services are available. types have been developing since the early 1990s. The city of Chanhassen is achieving diversity in — MUSA Exemption housing types and attraction of commercial and industrial uses that assist the tax base and provide Based on the limited need for municipal urban local services for it residents. — services the following area will not be extended municipal services; the Minnewashta Regional POLICIES Park, Camp Tanadoona and the Minnesota Landscape Arboretum. but they may be brought in • Develop and maintain the City's land use plan so if petitioned. that it is utilized as a fundamental tool for directing the community's growth. _ Maximum Use of Allowable Density • Recognizing that some uses pay their way in Based on the city's housing goals and the city's terms of the property taxes they generate and participation in the Livable Communities Act, the some uses do not. Chanhassen will strive for a city has the right to deny approval of any project mixture of development which will assure its that does not meet the minimum density allowed in financial well being. the land use designation. Reasons for denial may • Development will be encouraged within the include deviation form the city requirements, or off setting goals of the city. 10 COMPREHENSIVE PLAN UPDATE 1998 MUSA line and at the same time Chanhassen will and berming to offer improved separation of plan the reasonable and orderly expansion of the incompatible uses. MUSA line to meet its need for additional developable land. • Development should be phased in accordance with the ability of the City to provide services. • Encourage low density residential development Development should occur in areas where in appropriate areas of the community in a manner services are available before extending services that reinforces the character and integrity of to new areas. existing single family neighborhoods while promoting the establishment of new neighborhoods • Development should be planned to provide of similar quality. adequate internal street linkages. The land use should also seek to direct growth in a manner that _ • The plan should seek to establish sufficient land makes the most efficient use of the area's to provide for a full range of housing opportunities. highway system. Development should be These opportunities require that adequate land be planned to avoid running high traffic volumes and/ designated for medium and high density land uses. or non-residential traffic through residential The city will seek to discourage the conversion of neighborhoods. these areas to lower density uses to ensure that the goal of housing diversity can be met regardless • The land use plan will be utilized to facilitate — of temporary market fluctuations. the City's efforts to anticipate future needs for open space, roads parks, schools, utilities, etc., • Chanhassen will continue to encourage the and make adequate provision for them prior to the location of commercial uses in the central business time they are needed. district. Commercial development outside the central business district and its fringe will be • Areas outside the MUSA shall be preserved as minimized until development of the central an agricultural zone or used to support very low business district and fringe are largely completed. density development. It is the city's policy to ensure that this area is not prematurely • The city will encourage the development of developed. The City will discourage the neighborhood service centers where appropriate. expansion or construction of commercial and These will be developed as a part of a mixed use industrial facilities in this area. development or a PUD. Development of unplanned and strip commercial centers shall be • Large lot subdivisions that do not have city discouraged. sewer or water shall be allowed to remain as is without requiring urban services even when they - • Planned industrial development will be are in the MUSA area, until the majority of the encouraged as a means of encourage tax base residents want/request to change their use. The growth and creating new employment smallest lot allowed in these subdivisions is two - opportunities. It is believed that planned growth and one-half acres. Larger lots may be can and should be designed to minimize subdivided if the lots meet the minimum 21/2 environmental neighborhood and traffic impact. requirement and a suitable location is available — for septic and well. If at some time the majority of • The city will seek opportunities to provide the households/residents, more than fifty percent, transitions between different uses of different petition to have their zoning changed and urban _ types; the more incompatible to the neighboring services (city sewer and water) brought to the uses, the more important the transition zone. For property, they can than further subdivide their example, natural features may provide good property. transitions between incompatible uses or uses of moderate intensity. The Land Use Plan also • Chanhassen will encourage the preservation seeks the establishment of buffer yards which and adaptive reuse of structures of historic and represent areas of increased setbacks where a architectural significance. - developer will be required to install landscaping 11 COMPREHENSIVE PLAN UPDATE 1998 • The City will maintain a comprehensive and modified as necessary to improve performance up-to-date set of ordinances to ensure that standards for new development to ensure that development is consistent with the plan while they incorporate high quality design, landscape, resulting in high quality, sensitively designed etc. The PUD Ordinance should also be projects. Ordinances should be reviewed and reviewed for similar reasons. — 2000 MUSA — BC 7 BC_8 BC-8 LR-2 TOTALS Gross Net Units Gross Net Units Gross Net Units Gross Net Units Gross Net Units Residential 0 0 0 0 0 0 0 Large Lot 0 0 0 0 — Low Density 225 143 294 119 113 232 9 9 19 66 37 76 419 302 621 82 55 297 Medium Density 45 18 97 29 29 157 8 8 433 0 0 0 0 0 0 0 - High Density 0 0 - 0 0 SUBTotal 270 161 391 148 142 389 17 17 62 66 37 76 501 357 918 Non-Residential Gross Net Sq.Ft Gross Net Sq.Ft Gross Net Sq.Ft GrossNet Sq.Ft Gross Net Sq.Ft. — Office-Industrial 39 204 0 0 - 0 0 • 0 7 4 39.204 Commercial ndus 7trial t7 13 127.413 0 0 - 0 0 • 0 0 17 13 127.413 0 0 0 0 - 0 0 Office 0 0 0 0 0 0 0 0 0 0 Mixed Use 0 0 - 0 0 • SubTotal 24 17 166.617 0 0 0 0 0 0 24 17 166617 Open Space Gross Net Gross Net Gross Net Gross Net G ross 420 Net Park 5 5 415 415 0 0 420 Public 0 0 159 159 28 28 0 0 187 187 Lake.wetl116 0 6 73 73 0 29 73 224 SubTotal 0 5 121 159 165 516 516 0 29 680 831 — TOTALS 299 299 307 307 533 533 66 66 1.205 1.205 2005 MUSA 2010 MUSA BC-2 BC-3 TOTALS BC-2 TOTALS — Gross Net Units Gross Net Units Gross Net Units Gross Net Units Gross Net Units Residential Large Lot 0 0 • 0 0 0 0 0 0 0 0 358 Low Density 201 144 296 3 3 6 204 147 302 254 174 358 254 170 Medium Density 127 98 529 60 60 324 187 158 853 0 0 High Density 0 0 • 0 0 0 0 0 0 0 0 — SUBTotal 328 242 825 63 63 330 391 305 1.156 254 174 358 254 174 358 Non-Residential Gross Net Sq.Ft Gross Net Sq.Ft. Gross Net Sq.Ft. Grosss Net Sq.Ft. Gross Net Sq Ft. Commeroal 0 0 0 0 0 0 — Othce-Industrial 0 0 105 77 754.677 105 77 754,677 1 0.6 5.881 1 0.6 5.881 0 0 Office - 0 0 0 0 0 60 40 392.040 60 40 392.040 mixed Use 0 0 0 0 - 0 0 0 o D 0 0 SubTotal 0 0 - 105 77 754.677 105 77 754,677 61 40.6 397.921 61 40.6 397.921 Gross Net Gross Net Gross Net Gross Net Gross Net Open Space 129 129 Pack168 168 20 15 20 15 39 39 0 0 0 0 0 0 Public ic 0 0 0 0 0 29 Lake wetland 0 0 0 0 0 0 0 SubTotal 39 39 129 129 168 168 20 44 20 44 Highway 212 ROW 86 28 114 76 76 TOTALS 367 367 297 297 664 664 335 335 335 335 12 COMPREHENSIVE PLAN UPDATE 1998 2015 MUSA — LB-1 LB-3 LB-5 Chaska TOTALS Residential Gross Net Units Gross Net Units Gross Net Units Gross Net Units Gross Net Units Large Lot 0 0 - 29 29 12 417 397 159 982 49 20 1.428 475 190 Low Density 70 37 76 67 66 136 75 71 146 0 0 - 212 174 358 Medium Density 0 0 - 42 42 227 0 0 - 0 0 - 42 42 227 High Density 0 0 - 34 34 306 0 0 - 0 0 - 34 34 306 Subtotal 70 37 76 172 171 680 492 468 305 982 49 20 1.716 725 1.081 Non-Residential Gross Net Sq.Ft. Gross Net Sq.Ft. Gross Net Sq.Ft. Gross Net Sq.Ft. Gross Net Sq.Ft Commercial 0 0 - 0 0 - 0 0 - 0 0 - 0 0 - Office-Industrial 0 0 - 106 100 980,100 0 0 - 49 49 480.249 155 149 1.460.349 Office 0 0 - 56 56 548,856 0 0 - 0 0 - 56 56 548.856 Mixed Use 0 0 - 0 0 - 0 0 - 0 0 - 0 0 - Subtotal 0 0 - 162 156 1.528.956 0 0 - 49 49 480.249 211 205 2.009.205 Open Space Gross Net Gross Net Gross Net Gross Net Gross Net Park 32 10 59 59 24 24 - - 115 93 Public 3 3 0 0 0 0 - • 3 3 Lakeiwetland 0 5 7 0 14 86 1.019 86 1.045 Subtotal 35 18 59 66 24 38 86 1.019 204 1.141 Highway 212 ROW 50 0 10 0 60 TOTALS 105 105 393 393 516 516 1 117 1.117 2.131 2.131 2020 MUSA GRAND TOTALS LB-2 LB-4 TOTALS Residential Gross Net Units Gross Net Units Gross Net Units Residential Gross Net Units Large Lot 203 194 78 292 278 111 495 472 189 Large Lot 1.923 947 379 Low Density 193 183 376 6 6 12 199 189 389 Low Density 1.288 986 2.028 Medium Density 0 0 - 0 0 - 0 0 • Medium Density 311 255 1.377 High Density 0 0 - 0 0 - 0 0 High Density 34 34 306 SUBTotal 396 377 454 298 284 124 694 661 578 Subtotal 3.556 2.222 4.090 Non-Residential Gross Net Sq.Ft. Gross Net Sq.Ft. Gross Net Sq.Ft. Non-Residential Gross Net Sq Ft. Commercial 0 0 - 0 0 - 0 0 0 Commercial 7 4 39.204 Office-Industrial 0 0 - 0 0 • 0 0 - Office-Industnal 278 240 2.348.320 Office 0 0 - 0 0 - 0 0 0 Office 116 96 940.896 Mixed use 0 0 - 0 0 - 0 0 0 Mixed Use 0 - SubTotal 0 0 0 0 - 0 0 Subtotal 401 340 3.328.420 _ Open Space Gross Net Gross Net Gross Net Open Space Gross Net Park 43 43 0 0 43 43 Park 766 739 Publ.c 104 104 0 0 104 104 Public 294 294 Lake wetland 0 17 175 189 175 206 Lakewet.ano 334 1.504 SubTotal 147 164 175 189 322 353 Subtotal 1.394 2.537 Highway 212 ROW 2 0 2 Highway 212 ROW 0 252 TOTALS 543 543 473 473 1,016 1.016 TOTALS 5.351 5.351 13 CITY OF CHANHASSEN A B C D E F 1111111 : ' i.. _ II 11111111 Illiillill . 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"'A II ti I"' ,, o illtlii, 7.0 ' II 1 4 il) 1 . aratiti-01iifili ....low h —:.-..--..1.1, City of . 3,„,;arii!;;il., !" 1111F....410.fit Chanhassen „m.o... - 1 r" ....--- ill MUSA 2000 ,-- 111111Im MUSA 2005 ---N MUSA 2010 MUSA 2015 1 1 1 MUSA 2020 COMPREHENSIVE PLAN UPDATE 1998 Chapter 2 3. Designing storm drainage facilities as an HOUSING integral part of the development plan with an effort made to locate open space near natural INTRODUCTION drainageways. - A community is made up of its residents, 4. Planting vegetation, if the land is devoid of it, in businesses and institutions sharing a common order to foster temperature and sound control, history or common social, economic. and political and clean air. Maintaining such vegetation by interests. One of the primary purposes of a creating a perpetual organization to take care community is to serve as a place of residence for of open space as mandated by restrictive its citizens. Assuming this charge, offering a mix of covenants. _ life cycle housing opportunities becomes a challenge for local governments. Within the City 5. Preventing erosion in areas with steep grades of Chanhassen, residential structures constitute and those susceptible to erosion. Ensuring the largest single use of land. Since residential that in the future this land is used for purposes development plays such a prominent role in the consistent with the preservation of open space. overall character of Chanhassen, its successful design and development are essential both 6. Designing drainage systems to minimize the - functionally and aesthetically. possibility of soil erosion, siltation, and damage due to flooding. Attention to design in the process of developing - and constructing housing units is essential. 7. Keeping in mind that the PUD principle clearly Development, whether commercial, industrial, or offers a framework for good design, residential, is long-term both economically and environmental concerns, and energy physically. Since development is permanent and conservation through the cluster concept. usually irreversible, the effects of substandard or Further, energy inefficient development poorly located facilities will be evident for a long patterns are outmoded and add to the cost of time. Therefore, both the developer and the city housing. must be aware of natural, physical, and social constraints and the potential long-term effects of a 8. Applying good housekeeping practice to project. Only by paying attention to such detail in construction as well as the finished product. - the early stages of development can facilities be constructed which are functional and aesthetic 9. Being aware of water and air contamination, both today and in the future. land despoilment, erosion and noise during _ construction. A number of factors help determine whether a development is successful or not. One of the main In addition to these items, other elements such as _ determinants is the amount of attention paid to noise, access, surrounding land uses and the environmental and conservation issues. The mitigation of incompatible land use patterns are Urban Land Institute recommends that the following also applicable. These criteria as well as those factors be incorporated in the design process: regarding corridor design standards are components of the Chanhassen Planning 1. Selecting open space with regard to Commission's and City Council's review of all enhancing the natural characteristics of the development proposals and particularly those land such as vegetation or a body of water. involving housing, since housing is the major use of land within the city. 2. Devising mechanisms to protect natural beauty while at the same time reserving certain areas The housing section of the comprehensive plan will for recreational use. present and analyze existing housing characteristics, discuss obstacles to the provision 14 COMPREHENSIVE PLAN UPDATE 1998 of adequate life-cycle housing. project future As Figure 2-1 shows, housing ownership continues housing needs, and suggest policies to meet city to be the predominant occupancy type in the housing goals. community. In 1970, 984 of 1,454 units, or approximately 68 percent of homes, were owner EXISTING HOUSING occupied. By 1990, 3,400 of 4,249 units, 80 percent of the housing stock, were owner occupied. _ Since 1991, the city has seen a change in the In 1997, the city estimates that 5,632 of 6,334 units character and type of housing being constructed in or 89 percent of housing is owner occupied. the community. While single family detached However, as demographic changes occur in the housing continues to be the predominant type of community and society at large, the city matures, housing in the city (78% of the housing stock as of and more diverse development is undertaken, this January, 1997), the city is seeing a greater variety number should decline again. — of housing types being proposed and constructed. - In 1995. there were more building permits issued 1997 HOMESTEAD VALUATION for single family attached housing (262 units) than �� _ for single family detached (216 units). Due to 5 .00i changing demographics and the aging of the me $�s$75 population. the city anticipates that residential units other than traditional single family detached _ housing will increase its proportion of the total housing stock. Since 1983, when development in •1.001 the city began to accelerate, the city has averaged approximately 275 residential building permits . annually. The housing stock consists of predominately single family detached housing with $115 001- $150.000 �� an estimated 5.103 units representing 77 percent $ of the total housing stock and an estimated 1,505 150 D01 s200 000 units of other types of housing representing 23 percent of the housing units as of April, 1998. Figure 2-2 HOUSING TENURE .x.— The median value of owner occupied housing has 70 �" steadily increased. In 1970, the median value was eon, $38,000. In 1980, the median value had increased ;;9; to $84,700. By 1990, the median value was 40" 0W OO $124,400. Based on a Carver County Housing 200% Study completed in December, 1996, the estimated o_ ---,:.. — median value of owner occupied housing in onsill—i Chanhassen was $140,597. In 1997, city building a"-Es°`� ® `ENR€R°°°JFED mss: ""` A��T permit records recorded an average building permit Figure 2-1 valuation for housing in the community at $159,812 with average building permit valuation for single — Comparison of census data for 1970, 1980 and family detached housing at $163,626. Though not 1990 provides an overview of changes in as spectacular as the increase in owner occupied Chanhassen's housing. Between 1970 and 1980, housing values, median rental rates have steadily total housing units increased from 1,454 units to risen since 1970 increasing 233 percent from $134 2,285 units, representing a 57 percent increase or to $446 per month in 20 years. Based on the 831 units. Between 1980 and 1990, total housing Carver County Housing, the estimated rental rates units increased from 2,285 units to 4,249 units, ranged from $345 to $895 per month in 1996. representing a 86 percent increase or 1,964 units. The city estimates an increase of an additional In 1996, there were 13 subsidized housing units in 2,085 units through April of 1997 for an increase of the City of Chanhassen, 12 were rental assistance 49 percent over seven years. and one was first time home buyer training and 15 COMPREHENSIVE PLAN UPDATE 1998 lending. In 1997, an additional 65 rental dwelling percent (138 persons) from 314 to 452 between units were added in the community through 1980 and 1990. Total population increased 5,373 assistance from Carver County and the City of persons or 84 percent from 6,359 to 11,732 while - Chanhassen. In 1998, an additional 35 ownership housing units increased by 1,964 units (86 percent) dwelling units will be developed through the use of from 2,285 to 4,249 units during this period. Housing Tax Increment Financing assistance from the city. As additional development opportunities The City of Chanhassen provides a wide range of occur and government assistance is available, housing styles in a variety of densities. As can be more dwelling units will be assisted. seen in Figure 2-6, residential development statistics, between 1993 and 1997, residential POPULATION development in the city has been very diverse. Single family detached subdivisions have averaged Chanhassen continues to be a relatively young a net density of 1.92 units per acres over the last community. Using 1990 census data. approximately four years. Multi-family developments during this 80 percent of the population was under 45 years of period have averaged a net density of 6.41 units age. While the age of the population will continue per acre. Overall, the community has averaged a - to rise with the aging of baby boomers, the city will net density of 2.85 units per acre. have a significantly younger population than more established communities. Median age in 1990 was RESIDENTIAL LANDS — 30.5 years in Chanhassen. Due to the large number of people in the prime child bearing years The city has four primary residential land uses. In (25 - 44), the persons per household continues to keeping with the rural heritage of the community, be relatively high at an estimated 2.93 persons per there are areas of large lot residential development unit in 1995. The persons per household in 1980 that permit a minimum lot size of 2.5 acres per was 3.04 and 2.92 in 1990. Since the predominant units. However, in compliance with an agreement type of housing unit is and will continue to be single between the city and the Metropolitan Council for family detached homes, the city can anticipate MUSA expansion in 1991, land outside the MUSA maintaining a relatively high persons per household line that is not currently developed, must maintain a throughout the next 20 years. The city projects that minimum density of one unit per ten acres. The - in 2020 the persons per household will be 2.65. predominate land use in the city has been residential low density which permits a housing Age Deer but on density between one and four units per acre. In um. °CC° 1996, there was a total of 4,502 dwelling units on sc. 2,955 net acres. This represents a net density of o 1.52 units per acre. The city estimates that there ,� ';: remains approximately 2,563 net acres of lE residential low density land for future development. `Y°°0 This equals between 4,555 and 5,844 additional '°°° ' _ residential units on residential low density land ,5 5 14 25 w 45 54 0 .50 54 O,' n. (see Table 2-6). One of two multi-family land uses '"m""' in the city is residential medium density, which Figure 2-3 permits between four and eight dwelling units per net acres. The city has approximately 362 net Between 1980 and 1990, the age cohort under five acres of vacant medium density land. The second increased 177 percent (858 persons) from 495 to multi-family land use is high density residential land - 1,343. The cohort between 25 and 44 increased which permits between eight and 16 units per net 132 percent (2,856 persons) between 1980 and acre. The city has approximately 96 net acres of 1990 from 2.160 to 5,016. This increase vacant high density land. In 1996, there were a represents the numerically largest increase in the total of 1,412 multi-family dwelling units on 664 net community. The age cohort of empty nesters, acres. The city projects an additional 3,179 multi- those between 45 and 64 increased 66 percent family units will be developed. Overall, the city _ (249 persons) from 378 to 627 between 1980 and 1990. Finally, residents 65 and older increased 44 16 COMPREHENSIVE PLAN UPDATE 1998 _ estimates a net density of 2.13 units per acre for all preliminary forecasts of population, households residential development in the community. and employment prepared by the Metropolitan Council in October 1996, in 1995, the city was at The city's housing stock is relatively young. 44 percent of its build-out population, 38 percent Approximately 81 percent of all housing in the city of its households, and 62 percent of its potential has been built since 1970. In addition, employment. As communities to the east continue approximately 74 percent of ownership housing to fill, there will be an even greater influx of and 63 percent of the rental housing in the city has development in Chanhassen. been built since 1970. — POPULATION HOUSEHOLDS EMPLOYMENT CITY PERCENTAGE PERCENTAGE PERCENTAGE Age of Housing Stock Table 2-1 Carver Co. 56 50 68 Own (Percentage) Rent (Percentage) 38 62 Chanhassen 44 1939< 141 (2%) 51 (0.8%) Chaska 60 42 82 1940-1969 812 (13%) 206 (3%) Victoria 41 36 50 Hennepin Co. 87 84 83 1970-1989 2.475 (39%) 331 (5%) Eden Prairie 77 65 73 1990-1997 2.204 (35%) 114 (2%) Excelsior 105 92 94 — Chanhassen NA NA 52 Total 5,632 (89%) 702 (11%l 89 72 Minnetonka 99 Source: 1990 Census: Metropolitan Council — Shorewood 93 79 48 Building Permit Trend, Carver County Housing Source: Metropolitan Council.Preliminary Forecasts of Population, Study: City of Chanhassen Building Permits Households and Employment.October 1996. Table 2-2 _ through January 1997 LIFE CYCLE HOUSING Chanhassen does not have any significant concentration of substandard housing. This is due, The city is committed to providing a variety of in part, to the newness of the housing stock. In housing styles with housing available for people of addition, the high home values may also play a role all income levels to meet the life-cycle housing in the condition of housing stock since homeowners needs of Chanhassen residents including have a strong financial incentive to maintain and traditional single family detached housing, zero lot improve their homes. If any area in the community line and clustered single family housing, were to be identified as a potential area for having townhouses, apartments, condominiums. The city some substandard housing, it may be the area in projects that there will be approximately a two- — Carver Beach which was originally platted for small thirds to one-third split between single family lots to accommodate seasonal cabins. detached housing and other types of housing units. At build-out, the city estimates that there will While the city has no recent information on vacancy be between 13,000 and 15,000 dwelling units. rates in the community, the city assumes the — How u�;t6 vacancy rate is 5 percent for all population and — household estimates. The 1990 census showed a 6X0 vacancy rate of 5.5 percent. Based on the 1996 t6000 . Carver County Housing Study and anecdotal 14.000 - fi _ information, there are few rental vacancies. 12.000- �-e*HOGGING GRGWrR -5.51.1OtblG GRGW1H 10.000- --AVERAGE w04.6MG GROWTH HOUSING DEMAND moo• V 6.000 / 1000 �� The city anticipates continued strong housing Zaoo„_____✓ demand and development. Compared to 01 ""\. 1970 1960 196 % 70 5 'SSC t900 2005 2010 2015 2020 surrounding communities, especially cities located Figure 2-4 to the north and east in Hennepin County, the city 9 has significant development potential. Based on 17 COMPREHENSIVE PLAN UPDATE 1998 While committed to providing life cycle housing, the the density range. However, city code would - city must overcome obstacles to their development. permit up to 2.9 units per acre. As a compromise, One of the most difficult impediments to providing the city estimated for scenario A a net density of one facet of life cycle housing, affordable housing, 2.42 units per acre, which represents lot areas of is land costs. Without the outright purchase of land 18,000 square feet, as the other end of the density by public bodies, the only way to moderate land range. This equates to between 5,844 and 4,555 — acquisition costs is to assure that an adequate single family units. In order to attempt to meet the amount of land is available within the urban higher projections, the city will need to encourage services area to alleviate real or perceived development of single family homes at the higher — shortages of developable land. Another end of the permitted density range. However, in impediment to life cycle housing is the fear of the order to protect the character of existing unknown by existing residents. To overcome this, neighborhoods, the city will need to transition the city must educated citizens about the different density within new developments, preserving the housing opportunities available. In addition, the expectations and investments of existing residents. city must work with business groups and In addition, the city will provide density bonuses in organizations to show the benefits of providing order to promote the provision of affordable housing diversity. Developers must be brought in housing opportunities that may otherwise not occur. as partners in providing life cycle housing. With changing demographics, it will become easier to Medium density housing is projected assuming 6 — convince the developers that life cycle housing is units per acre. High density housing is projected marketable. Finally, land development costs must assuming 10 units per acre. This represents an be brought down. To do this, the review process addition of 3,179 multi-family dwellings in the — must be streamlined, more efficient development community. Included in multi-family housing are patterns must be utilized, local, regional, and state townhouse developments, apartments, fees must be reduced, and development must more condominiums, and other types of attached housing efficiently utilize existing infrastructure investments. units. Additional multi-family housing could be included as part of mixed use developments. Tables 2-5 and 2-6 and Figures 2-4 and 2-5 However, with little historical evidence to base provide the city's analysis of the residential assumptions upon, the city will not attempt to potential within the community. The city estimates project the number of units that will be developed in the following gross acres for the different land these areas. uses: 5,615 acres of low density guided lands, 562 — acres of medium density guided land. and 202 Table 23 CITY INDEX BENCHMARK GOAL acres of high density guided land vacant within the Affordability community. Of this amount, there were 3,021 net — acres of developable residential land within the Ownership 3' 60-69% 3- community as of January, 1997 (2,530 acres of low Rental 44 0 35-37 ss° density, 362 acres of medium density, and 96 acres Lite-Cycle of high density). The city assumed single family Type(non-single 34°, lands contained 15 percent right-of-way and 30 family detached) 19 3' s' ° g9j,a Comp percent open spaces including parks, bluffs, flood BO-9C 2C-,0 plains, wetlands and undevelopable land. Medium Owner Renter Ma 85/15% 67.75/25-33% density and high density lands assume 10 percent Density right-of-way and 30 percent open spaces including Single Family 1.5'acre 1.8-1.9/acre 1.8 parks, bluffs, flood plains, wetlands and Detached — undevelopable land. Multi-family 11 acre 10-14 acre 9-10 Overall Average 3.3 To project future housing, assumptions of various — densities for the land uses must be made. For low The city projects that approximately 56 percent of density residential, the city assumed that a range the future housing will be built within the existing of housing would be developed. Using historical MUSA boundaries and 44 percent will be in the development data, the city estimates for scenario B MUSA expansion area. Overall approximately 75 a net density of 1.8 units per acre as one end of percent of all housing will be inside the existing 18 COMPREHENSIVE PLAN UPDATE 1998 MUSA boundary and 25 percent will be in the * The City of Chanhassen reserves the right MUSA expansion area. to re-negotiate the goals. ** Chanhassen agrees that the Metropolitan Council will use other market indicators to evaluate goals. These indicators may _ �. include land prices, interest rates. cost of — construction, and environmental factors .:- ' . ::::. .----!. r -i including trees and wetlands. To achieve the above goals, the City of ' Chanhassen elected to participate in the _ Y Metropolitan Livable Communities Act Local _ ;;;::, r.� Housing Incentives Program, and has prepared -%---- _-- and submitted a plan to the Metropolitan Council - - '" indicating the actions it will take to carry out the above goals. Figure 10 provides an analysis of the — number and types of units necessary to meet life- cycle and affordable housing targets. The city has The City of Chanhassen supports: assumed that affordable housing can only be met — within multi-family development due to high land 1. A balanced housing supply, with housing and development costs in the community. While available for people of all income levels. the continuation of recent development patterns is _ a reasonable assumption, the city's target goes 2. The accommodation of all racial and ethnic beyond this number and will require significant groups in the purchase, sale, rental and effort and innovation on the city's part. _ — location of housing within the community. 3. A variety of housing types for people in all L-44,i IN stages of the life cycle. `;�1. ' �_ ~v-�, %.1 4. A community of well maintained housing :_ W ,,t - and neighborhoods, including ownership ;�,�, � 4,_ � and rental housing. .N_ "'-' g:: F` c ' �. os�f rtriuwra ;.,�� .,� "� r,„::-.. ._ '. 5. Housing development that respects the 'h," " -- natural environment of the community while ; 'vs . • striving to accommodate the need for a variety of housing types and costs. — 6. The availability of a full range of services and facilities for its residents, and theV= -- ' improvement of access to a linkage between housing and employment. HOUSING STRATEGY GOALS In 1995, more non-single family residential permits To carry out the above housing principles, the City were issued than detached single family permits. of Chanhassen has agreed to use the benchmark Of the residential land area in the MUSA, a large indicators for communities of similar location and portion is guided for medium or high density stage of development as affordable and life-cycle development. The city has worked with Carver housing goals for the period of 1996 to 2010, and County to provide a 65 unit Senior Housing project _ to make its best efforts, given market conditions with 39 units in the rental affordable range. The and source availability, to remain within or make City Council has approved the creation of a tax progress toward these benchmarks. increment district to provide assistance to 35 of 76 19 COMPREHENSIVE PLAN UPDATE 1998 single family detached units. Price ranges for 35 units will be from $88,000 to $120,000. Through 1980 HOUSING TYPES growth and natural maturation, the city is experiencing housing diversity. ill OF LY FAMILY DETACHED Livable Communities Table 2-4 ■DUPLEX - TOWNHOUSE Single Multi- Owned& Rental& .MULTI- Family Family Owned Affordable Rental Affordable FAMILY - 1990 3,367 882 3,612 1,336 637 280 1996 4,926 1.408 5,632 1,636 702 319 1990 HOUSING TYPES 2020 9,427 4.590 12,660 3.800 1.407 492 It II SINGLE FAMLY Recent approved developments we achieve the folwmggoals DETACHED Proied nit Affordable Units %Affordable DUPLEX Walrut Grove 247 126 52% North Bay 76 35 44% TOWNHOUSE Autumn Ridge 140 82 /a ,MULTI- Total 463 245 53% FAMILY It the city were to maintain the same ration of affordable units for all future mutti4amiy development. we would add 1.684 affordable unfits to the housing stock Total New Units 7.733 Total Multi-famiy unit: 3,178 I 53%mtlhfamiy units 1,684 2000 HOUSING TYPES This would lead to a total affordable ownership housing of 3.320 units Staff is proposing agoal of 30%affordable ownership housing which would require 3,800 additional affordable undo.A file more than doude the existing affordable ownership housrtg. Staff is also proposing that the goal for rental p SINGLE housing be reduced to 10%.which would require the doublug of the existing rental housing. The goal for affordable rental urits would remain at 35%,requiring a total of 492 affordable uruts,which is an FAMILY Increase of 173 units. DETACHED -`. it •DUPLEX TOWNHOUSE Action Plan .MULTI- FAMILY The city will continue to uphold the housing goals I and policies of the comprehensive plan. In -- addition, the city will pursue other resources for II 2010 HOUSING TYPES providing life-cycle and affordable housing. Following is the proposed action plan. Currently, SINGLE the city is also pursuing a clustering project with �®FAMLY Southwest Metro, Eden Prairie and Chaska. This IDDETACHED project would be a mixed use development with a =DUPLEX, transit component (park and ride facility). The city TOWNHOUSE MULTI- is also working on a 60 acre mixed use project, FAMILY Villages on the Ponds, that also has a transit component with commercial, office, and institutional — with residential integrated into the development. Both projects have a strong mass transit 2020 HOUSING TYPES component. — °lab e SINGLE FAMILY DETACHED ■DUPLEX TOWNHOUS E,MULTI- FAMILY ULTI- FAMILY Figure 2-5 20 COMPREHENSIVE PLAN UPDATE 1998 City Ordinances Homeowner Rehabilitation The following actions are possible actions the city The HRA currently administers the following should undertake to pursue life-cycle affordable programs in Carver County: housing: MHFA Fix-Up Fund • Promote life cycle compatible with existing Maximum gross income $41,000, Maximum loan amount $15,000, _ housing. 15 yr. Term, Interest rate 2-8%, Credit • Review city ordinance regulations and repayment ability analyzed. especially the PUD ordinance and lot size/ zero lot and design standard including MHFA Accessibility Improvement Loans — street widths. Maximum income: no limit, Maximum • Pursue the upper limits of zoning on new loan amount $25,000, proposals where there is a density range. 20 yr. Term, Interest rate 8%, — • Require a percentage of medium and high Accessibility improvements only. density to have a number of affordable units. MHFA Home Energy Loans -- • Provide for mixed use projects with a transit Maximum income: no limit, Maximum component. loan amount $5,000, 5 yr. Term, Interest rate 8%, Energy _ City EDA improvements only. The city, through the Economic Development MHFA Mobile Home Loans Authority, will explore all avenues for financing Maximum income: no limit, Maximum — affordable housing, including tax-exempt and tax- loan amount $5,000, increment financing. 5 yr. Term. Interest rate 8%, Energy improvements only. — Carver County HRA MHFA 3% Revolving Rehabilitation Loans 1 Development, Affordable Financing, Down Maximum income: $18,000 adj., Payment Assistance, Home Buyer Education and Maximum loan amount $10,000, Foreclosure Prevention 15 yr. Term, Interest rate 3%, repayment ability (not credit) analyzed. 2 The HRA has the experience to develop affordable single family housing and is prepared to MHFA Deferred Loans offer all cities in Carver County its expertise and Maximum income: $10,000 adj., assistance. Maximum loan amount S10,000, 3 The HRA offers first time home buyer Interest rate 0%, Deferred 10 year loan. funding through participating lenders in Carver County. The program is funded by mortgage MHFA Deferred Accessibility Loans — revenue bonds from the HRAs bonding allocation. Maximum income: $18,000 adj., Maximum loan amount $10,000, 4 The HRA offers home buyer education and Interest rate 0%, Deferred 10 year loan, certification to all Carver County residents. Accessibility improvements only. 5 The HRA offers foreclosure prevention Carver County HRA Home Improvement Loans counseling and financial assistance to all Carver Maximum income: no limit, Maximum County residents. loan amount $5,000, Interest rate 3-9%, Term to commensurate with repayment ability. 21 COMPREHENSIVE PLAN UPDATE 1998 New Construction Tax Credit Mortgage/ RENTAL HOUSING Builders Loans Low and Moderate Income Rental Program I. New Construction Deferred Loan Program Revolving Loan Program The Carver County HRA assisted in the Great Minnesota Fix-up Fund _ formation of the Carver County Housing Mortgage Revenue Bonds Development Corporation, a non-profit Mortgage Credit Certificates (MCC's) entity with the ability to partner with private — developers to create affordable housing Action Responsibility Funding projects and developments. Review City City staff, Planning None Anticipated Action: ordinances Commission and City Council The EDA, in conjunction with the City of Explore all options City staff, Planning CDBG,City Chanhassen, will explore the feasibility and for a variety of Commission and EDA. Carver — funding opportunities available for housing affordable housing City Council County HRA. opportunities Metropolitandevelopment upon the city's request. Council. N Housing — 11. Tenant Based Subsidy Finance • Section 8 Rent Assistance Program Educate developers City staff, Planning None and residents about Commission.City Metropolitan Council HRA life-cycle housing Council and HRA • MHFA Rental Assistance for Family Stabilization (RAFS) Cooperate with Southwest Metro. Carver Co. • Carver County Transitional Housing other governmental Carver County HRA HRA.Met units in providing Council. — • Carver County HRA Rental Inventory housing MN Housing • Rental Rehabilitation Grants and Loans opportunities Finance Community Development Block Grant (CDBG) Property and code City staff City EDA. enforcement or Carver Co HRA. maintenance and CDBG Carver County completed a Housing Condition rehabilitation of _ Study. The city will pursue using CDBG funds from housing Hennepin County to make housing rehabilitation Look for opportunities City staff, Planning City EDA. loans. The city will pursue CDBG funding for for mixed use Commission and Carver Co. _ acquisition and related infrastructure for multi- developments with City Council HRA, family projects. mass transit Met Council, component MN Housing Minnesota Housing Finance Agency The city will pursue programs, including grants, loans and federal tax credits, for housing - assistance development and rehabilitation f " including the following programs: f� - 1111 !� Minnesota Mortgage Program I It f' ,. Homeownership Assistance Fund ��_;� '1� 3 Ar Purchase Plus Program V ,,, Partnership for Affordable Housing Entry Cost Homeownership Program (ECHO) Low Income Housing Tax Credit Program 22 COMPREHENSIVE PLAN UPDATE 1998 governmental units and public agencies to The city is working on the affordable housing streamline, simplify, and coordinate the reviews strategy on several fronts. First we are working to required for residential development to avoid encourage development of the properties that are inflating the cost of housing due to unnecessary currently zoned for medium or high density to delays in the review process. provide a variety of housing opportunities. Carver County is looking to develop another project in the In order to encourage the development of city. Their other project, the Senior Housing, has affordable housing, the City of Chanhassen may all units leased. There will be other opportunities increase the permitted net density of a project by _ to provide sewer and water with additional phases 25 percent. The "bonus" units must meet of the Bluff Creek Interceptor, which should provide affordable housing criteria as defined by the city. opportunities for a variety of housing types. There Developers shall be required to enter into an _ are a few development projects that are taking agreement ensuring the affordability of the units. shape which may require rezoning or comprehensive plan amendments. Subsidized housing should be given equal site and planning considerations to non-subsidized housing - Carver County has completing a housing condition units and should not be placed in inferior locations study. This study will provide the city with data on or in areas that are not provided with necessary housing that may be deteriorating. The purpose of urban services. — this information is that the City has the ability to seek CDBG money for rehabilitating homes for the If demand becomes apparent. the city will promote year 1997-1998. Maintaining the existing housing the construction of senior citizen housing in _ stock is another housing goal. locations convenient to shopping and medical services. HOUSING GOAL — The development of alternative types of housing - To provide housing opportunities for all residents, such as patio homes, townhouses, and quadplexes consistent with the identified community should be permitted to supplement conventional development goal. single-family homes and apartments providing that - they are compatible with appropriate land use POLICIES practices and are representative of high quality development. Existing housing within the city should be maintained and improved and revitalization of older New residential development shall be discouraged developed areas should be encouraged. from encroaching upon vital natural resources or - physical features that perform essential protection As state and federal funding permits, efforts should functions in their natural state. be made to provide low and moderate housing where needed, to provide balance to the generally Housing development methods such as PUD's, high cost of new housing. New construction cluster development, and innovative site plans and programs may provide a source of such housing. building types should be encouraged to help conserve energy and resources used for housing. Plans and ordinances for the City of Chanhassen should ensure that adequate amounts of land are Property and code enforcement policies which designated to accommodate projected residential encouraged the maintenance and rehabilitation of - growth. both owner occupied and rental housing should be encouraged. The city should promote the use of state and federal programs designed to reduce land costs for The City should continue to ensure non- developers of low and moderate income housing. discrimination in the sale and rental of housing units. The City of Chanhassen will cooperate with other Citizen participation in developing plans and 23 COMPREHENSIVE PLAN UPDATE 1998 Table 2-6 EXISTING HOUSING UNITS(JANUARY 1997) - Net Acres Units Single Family 2,955 4,502 VE" r�� Multi-Family 664 1.412 1,_. i I 4ac-• It� . '1 Subtotal 3,619 5,914 craj IIlM1tta EXISTING MUSA 1991 (VACANT LAND) r,::,:•1 J I LL . Net Acres Units A Units B Single Family 1,577 3,816 2,839 } Multi-Family 169 1.496 1,495 Subtotal 1,746 5.312 4,334 MUSA EXPANSION AREAS Net Acres Units A Units B Single Family 986 2,028 1,716 Multi-Family 289 1.683 1,683 Subtotal 1,275 3,711 3.399 implementing housing programs is encouraged in redevelopment, rehabilitation, and in the planning TOTALS Net Acres Units A Units B for future housing. Single Family 5,518 10,346 9,057 Multi-Family 1,122 4,591 4,590 Where housing density is given by a range in the TOTAL 6,640 14,937 13,647 comprehensive plan, the city shall encourage NOTES: development at the upper end of the density range. Net Acres Existing MUSA: SF 15%ROW.MF 10%ROW,30%wetland/park The city will promote the mixing of housing densi- MUSA Expansion: SF 15/°ROW. MF 10°/0 ROW,(wetland.parks -.- ties within projects in order to provide a wide range excluded via GIS)Scenario A represents an optima)development of housing styles and types. Such mixed densities scenario. Scenario B represents a more realistic scenario. must provide appropriate transitions from existing development. The city will continue to participate in the imple- _ mentation of the Livable Communities Act of 1995. The city will promote the integration of life cycle housing opportunities throughout the community. Affordable and subsidized housing shall not be overly concentrated in one area of the city. 24 COMPREHENSIVE PLAN UPDATE 1998 GROSS ROW WETLAND PARK NET TOTAL GROSS NET NOTES _ CASE PROJECT NAME ACRES ACRES ACRES ,lain AQB S S)N[[S QENSITY 9ENSITY SINGLE-FAMILY DETACHEQ 93-1 SUB Highlands of Lake St.Joe 36 0.4 11.54 0 24.06 33 0.92 137 Shoreland district 93-4 SUB Windmill Run 17.92 3.37 0 0 14.55 35 1.95 2.41 farm field 93-8 SUB Royal Oaks Estates 13 22 0 0 10.3 23 1.77 2.13 farm field 93-10 SUB Lotus Lake Woods 4.47 0.32 03 0 3.85 7 1.57 1.82 wooded/wetland 93-11 SUB Oaks at Minnewashta 35.83 9 3 8 15.83 45 126 2.84 93-12 SUB Tower Heights 7.1 0.6 0 0 6.5 13 123 2.00 infill development 93-14 SUB Shenandoah Ridge 11.5 3.5 0 0 8 20 1.74 2.50 93-15 SUB Church Road 3.3 0 0 0 33 4 121 121 infill development 93-16 SUB TJO 1.06 0 Q 0 1.06 3 2.83 2.83 infill development - 93-25 SUB Minger Addition 9.95 2.08 0 0.15 7.72 17 1.71 2.20 large areas of tree preservation 94-1 SUB Minnewashta Landings 19.7 1.7 0 0 18 27 1.37 1.50 beachbVshoreland district 94-3 SUB Ofivewood 25.95 4.6 14.8 0 6.55 8 031 1.22 shoreland district,wetlands redone 1998 94-4 SUB Shadow Ridge 15.99 2.15 1.9 0 11.94 17 1.06 1.42 3.9 acre outlot yet to be platted 94-5 PUD Mission Hits/Single-family 7.1 0 0 0 7.1 16 225 225 - 94-7 SUB Woodridge Heights 37.9 3.67 6.7 0 27.53 45 1.19 1.63 wetlands/topography 94-8 SUB Creekside 39.5 42 5.7 5 24.6 44 1.11 1.79 Adjacent to Bluff Creek corridor 94-10 SUB Brenden Pond 23.3 3.6 72 0 12.5 21 0.90 1.68 steep slope,large wetland , 94-13 SUB Pointe Lake Lucy 18.15 1.63 5.62 0 10.9 19 1.05 1.74 Shoreland district 94.15 SUB Hobens Wid Woods Farm 1.87 0 0 0 1.87 3 1.60 1.60 infill development - 95-10 SUB Forest Meadows 20.2 22 0 5 13 19 0.94 1.46 bluff areas 92-4 PUD Meadows at Lon eacres 95 10 24 0 61 112 1.18 1.84 93-2 PUD Trotters Ridge 32.5 7.44 5.6 0 19.46 49 1.51 2.52 tree preservation/wetlands 91-3 PUD Willow Ridge 30.3 4 839 0 17.91 37 1.22 2.07 large wetland 92-1 SUB Stone Creek 81 10.04- 0.96 8- 62 141 1.74 227 tree preservation/wetlands - 92-4 SUB Ithilien Addition 9 1.8 0.9 0- 6.3 17 1.89 2.70 92-5 SUB Bluff Creek Estates 61.45 7.9 19.7 0 33.85 78 1.27 2.30 93-3 PUD Woods at Longacres 96.77 13.1 10.87 0 72.8 115 1.19 1.58 wetlands/severe topography/Woods 93-6 PUD Springfield 80.8 20.2 0.5 5.3 54.8 134 1.66 2.45 95-3 SUB Lake Lucy Estates 16.36 2.08 426 0 9.42 17 1.04 1.80 natural wetlands,topography, redone 1998 95-20 SUB Knob Hill 8.35 1.1 0.66 0 6.59 12 1.44 1.86 wetland 95-21 SUB Dempsey Addition 5.11 0.04 0.96 0 4.11 7 1.36 1.70 wetland 95-22 SUB The Frontier 8.9 0.09 02 0 8.61 9 1.01 1.05 Bluff area limits development 96-2 SUB Oak Ridge of Lake Minnewashta 11.8 21 0 0 9.7 23 1.95 2.37 _ 96-3 SUB Slather Addtlon 1.22 0 0 0 122 2 1.64 1.64 infill development _ 96-4 SUB Melody Hill 4.57 0.73 0 0 3.84 10 2.10 2.60 infill development �.. 96-7 SUB Arundel 1.32 0 0 0 1.32 2 1.52 1.52 infill development 96-8 SUB Rice Lake Manor Estates 7.06 0 124 0 522 2 028 034 infill development 96-9 SUB Rook Place 1.08 0 0 0 1.08 2 1.85 1.85 infill development 96-15 SUB Black Walnut Acres 328 0 0, 0 328 1 0.30 0.30 infill development 96-18 SUB Song Addition 8.3 0 1.75 0 6.55 1 0.12 0.15 infill development 97-1 SUB Highover Addition - 48.99 13.83 2.83 0 32.33 54 1.10 1.67 steep slopes,trees,wetlands SUBTOTAL 962.95 139.67 140.18 31.45 651.65 1,244 PERCENT 1 15% 15% 3% 68% AVG 129 1.91 y1ULTl-FAMILY 94-5 PUD Mission Hills/Multi-family 47.181 11.6 5.87 0 29.71 208 4.41 7.00 94-18 PUD Autumn Ridge 28.131 429 0 0 2324 140 4.98 5.87 92-3 PUD Oak Pond,Oak Hills 24.19 2.09 1.8 0 20.3 147 6.08 7.24 94-7 SP Prairie Creek Townhomes 4.6 0 0- 0 4.6 24 522 5.22 87-3 PUD Powers Place 9.7 0 0 0 9.7 48 4.95 4.95 - 95-7 SP Lake Susan Hills Townhomes 729 0 0 0 7.29 34 4.66 4.66 95-8 SP Centennial Hills 22 0 0 0 22 65 29.55 29.55 95-1 PUD North Bay 52.1 2.92 8.66 26.38 14.14 76 1.46 537 96-3 PUD Townhomes at Creekside 7.03 2.18 1 021 3.64 25 3.56 6.87 City required preservation of Bluff Creek 96-4 PUD Walnut Grove 49.8 6.81 0.2 0 42.79 247 4.96 5.77 corridor/large setbacks from Bluff Creek SUBTOTAL 232.22 29.89 17.53 26.59 158.21 1,014 I PERCENT 13% 8% 11% 68% AVG 437 6.41 TOTALS 1195.17 169.56 157.71 58.04 809.86 2,258 PERCENT 14% 13% 5% 68% AVG 1.89 2.79 NEM 25 COMPREHENSIVE PLAN UPDATE 1998 CHAPTER 3 comprehensive plans generally focus on larger scale features. In Chanhassen, four large-scale NATURAL RESOURCES features dominate the landscape. They include lakes, wetlands, creek and river corridors and tree cover. Each of these are reviewed as follows. PURPOSE LAKES The City of Chanhassen recognizes the importance of its natural environment to the quality of life for its Chanhassen contains nine major lakes, all but citizens and the need to protect and enhance these three of which lie solely within the community's — resources. This chapter of the Comprehensive corporate boundaries. These lakes serve as a Plan outlines the accomplishments, challenges, and habitat for fish and wildlife and offer recreational future goals for the City's natural features. As opportunities for adjacent residents and the - development places further pressures on the city's general public. The City's lakes also contribute to resources. challenges and limitations will need to Chanhassen's community identity. They are be met head-on with creativity and a commitment to typically surrounded by desirable neighborhoods a community privileged with environmental assets. having unique identities often intertwined with that of the lake. The City of Chanhassen has already While there will be constraints and obstacles to established a series of protective measures for the implementing any program or policy pertaining to lakes. The current zoning ordinance establishes a the environment, Chanhassen acknowledges the shoreland overlay district that was consistent with necessity and importance of its natural resources. guidelines established by the Minnesota Past experience proves that multiple jurisdictions, Department of Natural Resources. Currently, the time constraints, and funding constraints do not City's shoreline alterations ordinance is more necessarily discourage or limit progress in the restrictive than those required by the DNR and natural resources agenda. Nor should the area watershed districts. However, there are few community's natural resources deter appropriate areas left on recreational lakes in which development. Rather, the two should serve to development can occur. The most recent complement one another to create a balanced proposals for development along lakes have come - community with a high quality of life for all residents. in the form of attempts to split existing lakeshore This chapter should reflect the City's commitment to lots. the utilization, conservation and preservation of its natural resources. NATURAL FEATURES - Natural features pose specific constraints as well as development opportunities. Additionally, they add a set of perceptions or values which make a specific — geographic area unique and different. However, in _ _.,,-- ___- • order to consider physical parameters within the planning process, it is first necessary to identify =- - pertinent natural features. Upon identification, .n _. `: policies can be established to maximize these , resources and enhance their benefit to the L S ! X7V �;! _ community. . :•-r, Natural features impact both community planning and site planning efforts. In site planning, topography, soil conditions, vegetation and drainage are major considerations. These factors - are also important in community planning, however, - land use recommendations contained in 1 COMPREHENSIVE PLAN UPDATE 1998 materials from streets and paved surfaces into The City's lakes are divided into two categories as water bodies. This runoff has been found to have follows: a high nutrient content which contributes to high nutrient loads within area lakes. Excessive nutrient Chanhassen's Lakes levels increase the amount of algae within a lake, Figure 3-1 reducing visibility and eventually reducing the _ amount of oxygen available for fish populations. Natural Environment Lakes The City's SWMP requires all new developments to Rice Marsh Lake provide ponding that manages both water quality Harrison Lake Lake St.Joe and increased quantities. In addition tot e Silver Lake requirements of new developments, the City is using the SWMP to identify existing points along Recreational Development Lakes lakes where untreated water runs off directly into — Lake Riley Lake Lucy lakes. Lake Ann Lake Susan Lake management plans have also been — Lake Minnewashta developed for the major lakes within the city. e.g. Christmas Lake Lotus, Riley, Minnewashta and Christmas. In Lotus Lake cooperation with the Riley Purgatory Bluff Creek _ Watershed District, a plan will be completed in In 1994, the City of Chanhassen adopted a 1998 for Lake Ann, Lake Lucy, and Lake Susan. Surface Water Management Plan (SWMP) which These reports will be updated bi-annually with identified the need for protection of lakes and water quality tests and lake plant inventories. wetlands. This plan identified the City's wetlands, These plans list goals for increasing fish identified each lake's watershed district and each populations, reducing nutrient loading, dealing with sub-watershed district. The plan also provided a exotic species and advice for lake friendly —_ design for using existing wetlands and creating aquascaping. The City has also been working to new wetlands to manage water quantity and pass a no wake ordinance that will protect lake improve water quality. In this plan a new criteria shore from eroding due to wave action caused — was developed for the acceptable quantity and from boats during extreme high water periods. quality of runoff from new developments. Although the City is working on long term projects — Water quality impacts come from two sources which to improve water quality, there are emerging issues are broken down into point and non-point source with lakes for which there are no easy solutions. pollution. Point source pollution is relatively easy One of these issues is Eurasian Water milfoil. This to identify since it is typically generated by a single exotic plant has taken hold in five of the City lakes. use or source. Fortunately Chanhassen lakes, with Christmas, Lotus, Minnewashta, Riley and Ann, and the exception of Rice Marsh Lake. have not been shows no sign of being controlled. Milfoil grows in subjected to point source discharges. Rice Marsh depths up to 12 feet and mats itself on the surface Lake had previously been used as a discharge of the water, impeding boat travel and swimming point for the area's old sewer treatment facility. activities. Currently, the only effective method of Most agricultural use, another major pollution control is using herbicides which only temporarily source, has since been eliminated, however, they removes its growth. This practice creates a difficult have left a significant residue of organic material on dilemma for the City. Chemical treatment may lake bottoms. provide short-term relief to the milfoil problem, but what effect do herbicides have on the lake's Non-point source pollution represents a significant ecosystem? As the use of City lakes increases, the potential impact to Chanhassen's lakes and is probability of other exotics invading the lakes are much more difficult to control since by definition inevitable. The zebra mussel is another exotic there is no one particular source. Examples of species which has been found in Minnesota lakes non-point source pollution include fertilizers spread and may soon invade Chanhassen waters. _ on residential properties that run off into area lakes Increased use of public accesses is also a concern. and storm sewer outflows that flush organic With the increase in Chanhassen's population in 2 COMPREHENSIVE PLAN UPDATE 1998 recent years. the boat traffic on City lakes has also by either agricultural or urbanization activities. increased. Utility wetlands are water bodies specifically created to manage surface water created by development. — As property taxes on lakeshore lots continually increase, the demand for services to manage the The Seminary Fen located north of Hwy. 212, in the problems arising on City lakes will also increase. southwest corner of the City, is the only wetland — Future lake management within Chanhassen will be classified pristine. In 1995, the Seminary Fen was finding the balance of protecting and improving identified by the Minnesota Biological Survey as the water quality, preventing overuse and abuse of the most important site in all of Hennepin, Carver and _ resources. while maintaining accessibility for all Scott Counties. There are approximately 90 acres Chanhassen residents. of calcareous seepage fen in this area with rare and threatened plant species. Preserving and WETLANDS protecting this resource should be at the top of the — City's wetland protection and preservation policies. In 1992, the state of Minnesota passed the Wetland Conservation Act (WCA), which put wetland With the change in wetland laws, the regulation of — protection and preservation into law. The goal of wetlands has also changed. The State of this act is to replace wetlands lost to previous Minnesota appointed the Minnesota Board of Water activities and to prevent the loss of existing and Soil Resources (BWSR) to oversee the — wetlands. Wetland identification and protection regulation of the WCA. BWSR, in return appointed have become integral parts of all development Local Governing Units (LGUs) to implement the throughout the entire state including Chanhassen WCA for wetland activities. Chanhassen was _ appointed as LGU for activities in its own City. This The City of Chanhassen, who has had wetland change gave Chanhassen some responsibility and protection ordinances in place since 1980, has control over wetland activities, but permits and continued to take the lead on the issue of wetlands approval were still required from the Army Corps of and their protection. The City's 1994 Surface Engineers, the Minnesota Department of Natural Water Management Plan (SWMP), included Resources, Minnesota Pollution Control Agency identification and reclassification of wetlands within and local watershed districts. In an attempt to — the City. Low areas were identified as possible simplify regulation, Chanhassen was one of a wetland sites. Wetland specialists made field select few LGUs selected to participate in a identification of these sites and detailed data program which would make LGUs the sole — sheets documenting vegetation, landscape and governing agency in cases where wetland impacts existing conditions were compiled. These data are less than three acres. In addition, 1996 sheets serve only as a guide for the City, and are revisions to the WCA allowed LGUs to develop their _ not to be used as the defining wetland boundaries. own comprehensive wetland plans. The City of Wetland boundaries are to be determined by Chanhassen has submitted a draft plan to BWSR, professional delineations conducted by parties who and because of previous work done in the SWMP, propose to impact or develop land in and around the City is in the final stages of having their plan these areas. In addition, any proposed approved. This plan allows the City to develop development will be required to delineate their sites their own rules specific to wetlands in Chanhassen. for the existence of wetlands. From this study, a — wetlands map was generated and a new wetland _ classification system was implemented, replacing ' the State's classification system. The City went to `+ . • :Ix — four levels of wetland identification; Pristine, Natural, Ag/Urban and Utility. Pristine wetlands • -, ' "y ' were identified as wetlands that remain in their • ._ _ natural state and have special and unusual qualities worth protecting. Natural wetlands are _ wetlands that still exist in their natural state and _ typically show little sign of impact from surrounding land use. Ag/Urban wetlands have been impacted — 3 COMPREHENSIVE PLAN UPDATE 1998 The Chanhassen wetland comprehensive plan Wetland Protection Goal _ proposes to expand it's wetland classification system. Currently, 75 % of the wetlands identified "To protect and rehabilitate wetlands to maintain or in the City are identified as AG/urban. The Plan improve their function and value." proposes to conduct function and value determinations of these wetlands to identify higher CREEK AND RIVER CORRIDORS quality wetlands and make recommendations for restoration projects. Chanhassen is fortunate to have significant natural amenities in the form of creek and river corridors. _ The SWMP plan also initiated ordinances to protect The community is bisected by Bluff Creek and Riley wetlands above the requirements of the WCA. In Creek. The southern boundary of the community is addition to building setback requirements, each formed by the Minnesota River. These corridors _ type of wetland also requires an additional represent significant visual, environmental and protected area referred to as buffer zones. These recreational amenities for the community. The buffer zones are undisturbed areas between creek corridors create ideal locations for City trails. wetlands and development. The goal is to have The creeks, which often have adjacent wetlands natural vegetation separation, to act as cover for and steep slopes, also form ideal boundaries wildlife and provide protection from urban runoff. between incompatible uses. The future of wetland protection and planning is The Minnesota River and the adjacent bluff line dependent on following the recommendations of the constitute an extraordinarily high quality Surface Water Management Plan (SWMP). The environmental and visual element within the _ SWMP was written to serve the City as a tool to community. The river bottom is protected as a protect. preserve and enhance its water resources. National Wildlife Refuge. To the extent that it is The plan identifies from a regional perspective the feasible to do so, the City of Chanhassen should stormwater quantity and quality improvements promote efforts to preserve these bluff areas. The necessary to allow future development to take bluffs, which are visible from distant locations, place and minimize its impact to downstream water overlook the river and contain steep, often bodies. The general objectives of the Chanhassen unusable slopes and stands of mature vegetation. Surface Water Management Plan are as follows: To The City has enacted bluff protection ordinances improve and maintain lake water quality, preserve and comprehensive ordinances regarding mining in and enhance wetlands, prevent flooding, reduce this area to preserve the scenic amenity and — erosion and sedimentation from surface flows, environment of the river valley. promote groundwater recharge. protect and enhance fish and wildlife habitat. provide water As part of its continued effort to protect natural _ recreational opportunities, enhance the natural resources, the City recently completed a beauty of the landscape, and to secure the other management plan for the Bluff Creek Corridor. The benefits associated with the proper management of Bluff Creek Watershed Natural Resources _ surface water. Management Plan is the City of Chanhassen's response to preservation of its natural resources in Flood Protecting Goal the midst of rapid growth and development pressures. The idea behind the plan was to identify "To provide 100-year flood protection for all the significant natural features found along the Bluff persons and property." Creek Corridor and establish guidelines and goals on how to preserve and protect the area before - Water Quality Protection Goal development occurs. The management plan identifies and describes the topography, soils, "To protect and improve water quality within vegetation, wildlife, wetlands, parks and trails, and Chanhassen lakes, streams, wetlands, and in the land use within the Bluff Creek watershed area. Minnesota River by mitigating both point and non- Currently the watershed is in a state of land use point sources of water pollution." transition, due to the community's rapid growth and development. Bluff Creek itself will experience 4 COMPREHENSIVE PLAN UPDATE 1998 increasing volumes of runoff associated with granted the City seed funds to begin project development in the coming years. Approximately implementation as designed by this plan. The City 70% of the watershed is undeveloped. Over half of has also petitioned the Riley Purgatory Bluff Creek the undeveloped area was unguided for future land Watershed District for a basic water management uses. The final plan is the result of a collaborative plan to help the City complete its goals using effort between preservationists, land owners, funding from a broader tax base. The City business interests, developers, citizens and continues to pursue other potential funding sources government. It also represents the interest and and anticipates using the plan as a tool for seeking cooperation between federal, state, and local further funding. - jurisdictional agencies. On December 16, 1996, the Chanhassen City The Bluff Creek Watershed is named after Bluff Council adopted the Management Plan as an Creek which runs approximately 6.6 miles along the element of its comprehensive plan. The plan has central part of the watershed. The creek winds its already been used in development proposals, way through from a large wetland complex obtaining increased building setbacks than that southeast of Lake Minnewashta through rolling hills which are normally required. and descends into large bluffs dropping more than 70 feet into the lower valley before discharging into GROUNDWATER PROTECTION Rice Lake and the Minnesota River. — Chanhassen's entire water supply is generated The Bluff Creek Watershed is approximately 9.6 from deep wells and it is imperative that our square miles and runs north to south along the community seek to protect and preserve this — western portion of Chanhassen. The watershed resource. Groundwater protection requires a two also includes Chanhassen's most significant track approach. The first is the protection of remaining natural resource. the Seminary Fen. recharge areas that serve to allow the resource to be naturally replenished. To this end, the City is In order to preserve this area, it is the City's goal to fortunate to have extensive lake areas, large areas acquire lands adjacent to the stream as of permanently dedicated public open space, and opportunities arise and funding permits. The City an active wetland protection program that will has already acquired portions of the corridor preserve the most sensitive of these areas. The through easement and fee title as development has second part of the approach requires the occurred. Currently, the Park and Recreation protection of the resource from impact by sources - Department is looking to acquire areas within the of pollution. To this end, the City has undertaken lower portion of the stream (Bluff Creek Park, the following: Power Hill Park and Stone Creek Park) in an - attempt to protect, preserve, enhance and/or 1. To ensure that all abandoned wells are restore its natural features. Serious efforts began permanently and securely capped to avoid in 1993 to produce a watershed plan that would direct introduction of pollution into the aquifer. look at the system as a whole, rather than individual parts. 2. Undertake and improve inspections and approval programs for on-site sewage systems In 1994, the City identified the need for a process and when necessary replacing these systems — to prepare and implement this natural resources with public sanitary sewer. plan for the Bluff Creek, which would include a partnership among community, state, county and 3. The City has been actively involved in the - federal agencies: non-profit organizations, and the removal of leaking underground storage tanks private sector (business and developers). and the treatment of contaminated soils that result. The City has undertaken this on The Bluff Creek Watershed received funding from several properties that were subject to the City of Chanhassen, the Minnesota Department redevelopment activities has cooperatively of Natural Resources and the Riley Purgatory Bluff worked with private individuals who have Creek Watershed District. In addition, the Metropolitan Council Water Quality Initiative has 5 COMPREHENSIVE PLAN UPDATE 1998 encountered such problems. It is anticipated effects a city's expenditures on energy and storm — that these efforts will continue. water retention. The State of Minnesota is requiring all cities, Chanhassen has taken a number of steps towards including the City of Chanhassen, to develop a preservation and reforestation of its woodlands. _ ground water protection plan. The City has been The City succeeded in passing a tree preservation active in participating in Carver County's plan and is ordinance in 1994 and completed a Minnesota projected to have a plan in place by 1999. Department of Natural Resources (MnDNR) inventory. The MnDNR inventory identified a — TREE COVER number of wooded areas throughout the city, the majority of which are on private land. Since these Through a stewardship plan and community tree areas are important to the city as a whole, but are — cover inventory conducted by the Minnesota held in private hands, a variety of planning options Department of Natural Resources, it was found that will be needed to ensure these forests remain in "historically, the City of Chanhassen was covered the future. Density transfers, conservation _ by the Big Woods. so called by the surveyors of easements, cluster development, and land the Federal government during the laying out of the acquisitions will be used as means to secure township and range lines in the 1830s. This forest forests, greenbelts, and corridors. stretched from southeastern to northwestern Minnesota. The large, deciduous forest consisted Another successful means of gaining tree cover in of fifteen tree species and several species of the city is the practice of including significant shrubs, (orbs, herbs, wildflowers and grasses. boulevard plantings with all developments and — Some of the most common tree species included collector road improvements. In most cases, a sugar maple, American linden, northern red oak, project will include hundreds of overstory trees and bur oak, ash, and elm. Close to seventy percent of other landscape plantings. This not only provides — the city was forested by these woods while the the cooling, purifying, and energy-saving benefits other thirty percent comprised wetlands, open of trees, but also increases the aesthetic value and water, and oak savanna openings." community pride in city streets. _ Some of Chanhassen's most prominent natural Economic benefits from trees are best realized when features to this day are the forested areas that total canopy coverage for the community is between _ exist within the community. These areas contribute 40 - 50%, about 20 large trees per acre. Guidelines to the open spaces and rural flavor of the are needed for achieving and maintaining an urban community. They are important determinants of the forest in order to optimize the canopy cover and the City's image, health and livability and as such, resulting benefits - stormwater management. should be preserved. In addition, to the aesthetic increased energy efficiency, wildlife habitat, and and social contributions, tree cover has economic improved air and water quality. Research has benefits for the city as well. It is well documented indicated that downtown should strive for a 15 — that trees reduce air and noise pollution, storm percent canopy coverage, fringe business districts for water run-off, and the heat island effect all of which 25 percent and residential areas for 50 percent. Analysis of the current state of Chanhassen's urban _ ` ,: .1•:-7-c__,•.;' .�'x?•:• '' forest should be a priority which would then set the , . . . -.. ` `;ice.:•; r1t ,1 :, precedent for future standards. `•`y ^ «" 4% 'Ct.'<;: `P�-.'°Li'',.2t!..-. 4 '- H-. . _ Not only important is the quantity and health ofthe _ w••''�- , ,. • �_ . with ' `,•`t'IL fr i,:! . • t, ' , 1L1-� . } - - trees in a community, but after past experience ! y 6t r 1 �' y_. tt'�-`41, . ; I. •, y • invasive, exotic plants, the type of trees planted ,e pieel ;7 -1 r ��+4;' .' - , ,. - merits attention as well. Native species reinforce the - - 'iJ" ;' .,;j ` I:-jrt " i t ' unique character of Chanhassen's Big Woods 1 •4:t"f n'; _. ' ` ' °`.', " ► `i - ' landscape, they are well-adapted to our climate and ti i 1. t,v ��'� ^'.".+`..��I 'i ... . .a.-•mv,--; rfr.-. �, � 4 soils, and help to preserve and restore native f: COMPREHENSIVE PLAN UPDATE 1998 known plant inventory done by the Minnesota "Big Woods" Trees Native to Chanhassen Biological County Survey, eight rare native plants Figure 3-2 were documented as present in the Seminary Fen. — It is reasonable to assume that other rare or American Linden or Basswood Bur Oak endangered species do exist within Chanhassen in Red Oak the rare natural communities that includes Silver — White Oak Lake, the bluffs of Bluff Creek and the Minnesota Northern Pin Oak River, and remnants of the Big Woods. Since Sugar Maple plants and animals play an integral role in the Black Cherry balance and quality of our community, their Ironwood Green Ash preservation and protection deserve the City's Paper Birch consideration. Bitternut Hickory — Quaking Aspen Chanhassen and most other developing Slippery Elm communities have not had an active wildlife Green Ash preservation effort embodied in the Comprehensive Black Ash — Plan. There is ample evidence to indicate that urbanization results in significant changes in animals. Native plantings should be promoted species and range of wildlife that will be everywhere in the community. encountered in the community. Chanhassen is fortunate to have a large number of lakes, Despite all measures employed, the city is still significant acreage permanently set aside as losing tree cover to residential, industrial and protected public open space, the Minnesota River infrastructure development. Since trees do serve bluff line, and the Minnesota River Valley, all of as an indicator of community health and image and which contain and protect wildlife habitat. The have significant economic impacts, more City's wetland protection efforts in the future will be commitment to their preservation is needed. In focused in large part on which wetlands constitute addition, Chanhassen should strive to create and significant wildlife habitat and are thus worthy of maintain a sustainable forest, one that is special protective measures, or where these ecologically sound, socially acceptable and habitats do not exist requiring that lower quality economically efficient. The fact that Chanhassen wetlands be re-worked to create it. is evolving from an agricultural to urban community intrinsically means there will be more trees in the The City of Chanhassen believes that it is a future. To ensure a safe, healthy, and diverse reasonable goal to attempt to maximize the urban forest. the City should develop a forestry preservation of wildlife even as urbanization management plan that incorporates long term goals continues to occur. Priority should be given to — and objectives as well as management practices significant habitats that are unprotected using and procedures. Identifying now what needs to be conservation easements or by outright fee title done in the future will assist in streamlining forestry acquisition where appropriate. — efforts in order to best utilize the time, money and effort spent on forestry responsibilities. AGRICULTURAL CHARACTER PRESERVATION WILDLIFE AND VEGETATION Historically, the City of Chanhassen has been an agriculturally-based community. Family farms Chanhassen contains diverse habitats, from river existed on land that is now subdivided for urban bottom lowlands and bluffs to mature maple- development. With this inevitable development, basswood forests and pristine wetlands, and within much of the character of the land has been lost. each habitat lives a community of plants and Similar to a historically significant structure that has animals particular to the site. There has been no been demolished, a landscape that has been inventory of specific plants and animals within the destroyed cannot be reproduced. For this reason, City, but unique natural communities have been the preservation of the rural character is so identified as a part of the wetland inventory project important. This preservation involves protecting — and the Bluff Creek Management Plan. In the one wooded areas and natural features as well as the — 7 COMPREHENSIVE PLAN UPDATE 1998 agricultural character. Agricultural or rural preservation efforts with other government and character can refer to distant views, open space, private programs. tree lines (wind rows) and agricultural-related buildings (barns, silos, houses, etc.). • Promote tree planting throughout the community through education, boulevard plantings, and Although an agricultural preservation plan has not subsidized purchases for residents. Increase been adopted, the City attempts to protect and canopy cover on private and public lands to meet maintain the character of the land through minimum standard of 50 percent overall canopy conservation easements, ordinances (Highway 5 coverage. Encourage plantings of native trees. _ Corridor Overlay District, Bluff Creek Overlay District) and planned unit developments. The City • Identify significant wooded areas to protect. intends to continue preserving the natural Preserve areas by means of development _ character of the landscape in developments as restrictions, density transfers. preservation feasible. easements, purchase, or other methods. GOALS — • Encourage and assist businesses, organizations, and private citizens in their efforts to beautify and The City recognizes the importance of its natural otherwise enhance the environment. Promote environment to the quality of life for its citizens and landscaping with native species. — the need to protect and enhance these resources. • Consider the adoption of policies or programs POLICIES that would seek to preserve agricultural land by — means of easements. density transfers, purchase • Preserve natural slopes wherever possible. or other methods. • Develop plans and ordinances designed to _ • Establish Farmer's Market in order to promote protect the Minnesota River corridor taking the old and support local agriculture. Hwy. 212/169 route into consideration. Work with _ the U. S. Fish and Wildlife Service and Minnesota • Continue to work with the Riley Purgatory Bluff Department of Natural Resources to expand, Creek Watershed District in implementing the Bluff protect and promote utilization of the resource by Creek Natural Resource Plan. Use the plan to guide — Chanhassen residents. future development in protecting natural resources in the Creek corridor. • Incorporate existing tree canopy cover data in city's GIS database. Update biennially or as _ • Continue to follow the recommendations outlined available. in the Surface Water Management Plan; providing 100-year flood protection for all persons and • Develop Forestry Management Plan by property, protect and improve water quality within — identifying strategies or means to achieve the Chanhassen lakes, streams, wetlands, and in the objectives of a safe, healthy, diverse and functional Minnesota River by mitigating both point and non- urban forest. The plan will be written to serve the point sources of water pollution and to protect and — City as a tool to protect, preserve and enhance its rehabilitate wetlands to maintain or improve their forest resources. function and value. Work for approval of a Comprehensive Wetland Management plan for • Identify and document significant wildlife habitats, state approval. Once the plan is in place, follow such as woodlands. fens, prairies, and bluffs in a recommendations for the reclassification and city-wide inventory. The result of the inventory improvement of Ag/urban wetlands. should be a Natural Resources Master Plan. Consider the adoption of policies and programs • Priority should be given first to preventing that would seek to acquire or protect significant — impacts to Pristine and Natural wetlands, then to wildlife habitats for preservation. Coordinate protecting Ag/Urban wetlands from further degradation. 8 COMPREHENSIVE PLAN UPDATE 1998 • Develop public education programs emphasizing • A maintenance program for sediment and the importance of wetland buffers. Requiring nutrient removal ponds be established. under the setbacks from wetlands provides protection during guidelines proposed in this report, to ensure that development and provides a buffer from human desirable phosphorus removal efficiencies are disturbance of the ecological functioning of the maintained and the successful operation of the wetland. Such buffers also filter out harmful storm drainage system. materials often present in surface runoff. • The erosion and sediment control requirements • Areas of significant wildlife habitat should be as developed in the Chanhassen's Erosion and protected from disruptions by free-roaming pets Sediment Control Handbook be enforced. and human recreational activities - especially during spring and summer nesting seasons. • A comprehensive public education program for Wetlands and adjacent herbaceous uplands are City residents, staff and the development critical habitats for waterfowl and other ground community be implemented based on the guidelines nesting species; disturbance during nesting can presented in this report. significantly reduce reproductive success. • Restore wetlands that are hydrologically disturbed. A high percentage of wetlands in the - City have been ditched or drained to some degree. Breaking existing tile lines or plugging ditches are a relatively simple procedure that is often effective at - restoring original hydrological conditions. • Continue efforts to work with landowners to - eliminate or reduce the introduction and spread of exotic species such as Eurasian water milfoil or purple loosestrife. Many wetlands in the City have _ been invaded by purple loosestrife: restoration projects in those areas must emphasize eradication of the species. The State has established guidelines for the control and management of noxious weeds: those should be implemented for effective control of purple loosestrife. - • Continue to implement wetland restoration projects prioritized in the SWMP. Most of the recommendations and wetland restoration projects - proposed in this section and in the wetland section of Part II, should be part of the development review program. • The proposed prioritization list for water quality improvements as identified in the Surface Water Management Plan be maintained whenever possible. • A monitoring and sampling program for selected waterbodies be developed, under the general guidelines proposed in this plan. This program could be developed by the City or an agency in cooperation with the City. 9 COMPREHENSIVE PLAN UPDATE 1998 CHAPTER 4 Parks and Open Space - Acquisition and Regulation PARK AND OPEN SPACE The City obtains land for recreational purposes in INTRODUCTION one of the following manners: acquisition or regulation. Acquisition refers to obtaining land - The quality and number of recreational facilities in a through easements, condemnation, donation or community directly contributes to the quality of life. purchase. The trails are constructed in easements. For this reason. the City of Chanhassen places a _ strong emphasis on parks and open space. As the The second means of obtaining land is through City of Chanhassen has developed and increased regulation or the zoning and subdivision ordinance. in population, more pressure and attention has The subdivision ordinance states that the developer _ been given to providing recreational opportunities shall dedicate land for parks, playgrounds, public for our residents. Increased leisure time, health open space and trails and/or shall make a cash awareness, greater mobility and higher disposable contribution to the City's park fund and trail fund incomes have all contributed to the increased (Section 18-79). demand for recreational activities. The challenge of the next century will be to provide facilities for a The planned unit development (PUD) ordinance growing and diverse population. also encourages the preservation of open space and sensitive land. For instance. 100 acres of Parks can be defined as public areas that provide environmentally sensitive land was dedicated in the active or passive oriented recreational facilities. A Arboretum Business Park. In addition, the Bluff _ significant characteristic of park land is its Creek Overlay District will ensure that ecologically accessibility to its users. Open space is any parcel sensitive features and open space will be that is not used for buildings or other structures and preserved. is left in a natural state. Parks and open space _ perform three functions: meet physical and Park Fees psychological needs, enhance and protect the resource base and enhance real estate values and The subdivision ordinance also permits the City to — provide a positive impact on economic require fees in lieu of a donation or easement for development. the park and trail system. These fees are paid with the other subdivision fees and the remainder is paid — PARK AND OPEN SPACE PLANNING at the time of building permit issuance. Open space, in its broadest terms, refers to any FACILITY INVENTORY _ parcel that is left in its natural state. The property could be utilized for recreational purposes or simply The Metropolitan Council has developed standards to maintain a natural environment. An example of for recreational facilities by the size. use and service _ recreational open space is the Lake Ann Park, whereas, the National Wildlife Refuge is open space that aims to preserve the natural environment and its habitat. There are numerous factors involved in park and t . '- . , open space planning such as existing regional, local .� I � _ �: , J - and private facilities, demographics and funding. -,. - I ,*$' The demographic structure determines the types of ,,"i ) �' : recreational facilities in a community. For instance, .f E J all l'— a young population would warrant the construction ,� t= - :1 �1 of more active recreational facilities. • -- . • ' J . iT ` iyyl. i ^ 1 COMPREHENSIVE PLAN UPDATE 1998 METROPOLITAN RECREATION OPEN SPACE SYSTEM CLASSIFICATION SYSTEM FOR LOCAL AND REGIONAL RECREATION OPEN SPACE Component Use Service Area Specialized facilities that serve a concentrated or Mini-Park limited population or specific group such as tots or senior citizens; may be in locations such as Less than 1/4 mile Site: Less than 1 acre apartment complexes, townhouse developments, or commercial centers 1/4 - 1/2 radius to Area for intense recreational activities such as serve a population of Neighborhood Park field games, court games, crafts, apparatus area. Site: 10-25 acres4,000 to 5,000 skating, neighborhood centers. (neighborhood) Area of natural or ornamental quality for outdoor Community Park recreation such as walking, viewing and 12,000 - 20.000 Site: 25-50 acres picnicking; and may contain areas for intense population recreational facilities such as athletic fields. _ Area of natural ornamental quality for nature Regional Park oriented outdoor recreation such as picnicking, 3-5 communities Site: 200-500 acres boating, fishing, swimming, skiing, hiking and camping. Area developed for one or more varying modes Linear Park of recreational travel such as hiking, biking, Site: Sufficient length toN/A snowmobiling, horseback riding, cross country accomplish purpose skiing, canoeing and driving Source: Metropolitan Council Table 4-1 area (Table 4-1). The City uses these standards to funding from the Metropolitan Council. Lake define its park system. Minnewashta Regional Park contains the following facilities: a swimming beach, picnic areas, boat REGIONAL OPEN SPACE access, 7 miles of trails, play areas and a 30 acre reforestation area. The future plans of this park call Lake Minnewashta Regional Park for an amphitheater, beach enhancements, a picnic - shelter and additional trails. 2020 Land Use Plan: Parks/Open Space Minnesota Landscape Arboretum Lake Minnewashta Regional Park is located on the northeast corner of Lake Minnewashta, west of 2020 Land Use Plan: Public/Semi-Public Hwy. 41 between Hwys. 5 and 7. The facility was originally established as a park in the late 1970s. The Minnesota Landscape Arboretum, a unit of the The area of the park totals 350 acres. University of Minnesota, is a public botanical garden and an international recognized education Lake Minnewashta Regional Park continues to be and research institution. Its 935 acres feature operated and maintained by Carver County with display gardens and exhibits, model landscapes for 2 COMPREHENSIVE PLAN UPDATE 1998 - PRIVATE FACILITIES • Camp Tanadoona ` _ fir I ' 3 moi. ' 9 2020 Land Use Plan: Public/Semi-Public — -;y .ti ,'�` ^ 3'7 ilt Camp Tanadoona was started by the Minneapolis • " ; -. . Camp Fire Girls in 1924. This camp consists of 63 L r' t�"-`- acres of land on Lake Minnewashta, south of Lake _ F '. �;.; Minnewashta Regional Park. Today the camp °-= .-"` serves both boys and girls. Bluff Creek Golf Course 2020 Land Use Plan: Public/Semi-Public and Low fruit and woody plant research plots, and woody Density Residential and herbaceous plant collections. Over 5,000 species of plants are represented on the grounds. Bluff Creek Golf Course is a private facility located on Hwy. 101 south of Pioneer Trail (TH 14). The — The Arboretum is open to the public year-round. 18-hole course is approximately 228 acres. There are six miles of trails for warm-weather walking or cross country skiing during the winter. A INTERGOVERNMENTAL COOPERATION/ _ new research project. the Spring Peeper Meadow, FACILITIES a sedge meadow wetland restoration, is located at the corner of Hwy 41 and 82^° Street. Intergovernmental cooperation has been a successful means of acquiring and maintaining " The Arboretum's many educational offerings recreational facilities. In 1991, the City and the include children's programs and gardens, family School District 112 jointly acquired land for Bluff activities, adult education, therapeutic horticulture, Creek Elementary and the Chanhassen Recreation — and Anderson Horticultural Library, one of the Center. The recreation center is a multiple-use foremost botanical libraries in the world. The facility with outdoor ball fields, tennis courts, state of Arboretum also hosts several public festivals every the art in-line skating/hockey rinks. — year, including the Sugarbush Pancake Brunch in the early spring and Fall Festival in September. EXISTING PARKS AND OPEN SPACE National Wildlife Refuge The City has six community parks, 21 neighborhood parks and 2,815 acres of open space (this includes 2020 Land Use Plan: Parks/Open Space land guided parks/open space and public/semi- public). Bandimere Community Park, City Center _ The National Wildlife Refuge provides protection Park and Roundhouse Park are scheduled to be for the natural habitat of the Minnesota River completed before 2000. The following table lists the Valley. The wildlife area, encompassing 14,000 parks and the facilities and activities they provide. — acres, provides a linear greenbelt stretching from Fort Snelling to the City of Carver. Within the City TRAILS of Chanhassen, the refuge consists of 100 acres of — land located adjacent to Rice Lake. The mission of Trails are an important element in an overall the refuge is to manage the natural resources in successful recreational system. They link parks order to perpetuate wildlife species and ecological and neighborhoods and the City to Eden Prairie and _ communities' natural diversity and abundance, as Chaska. The City places a high priority on the well as provide opportunities for wildlife-oriented construction of trails. The following map displays recreation and an educational center for the study the location of public trails. of natural systems. 3 COMPREHENSIVE PLAN UPDATE 1998 TABLE 4-2 V, E 0 G _ Ca y co z = U 'Y 4 y c > Y 00 a m ayi (� m y Z. Cr o ` c m g o = (../ y0 %G v m N p 4. S. V Lu cc = W V tY/! i0 k U U i Z U U t y C 16 V C E U i eo .3 o .0 o 0 0 Q. o a) cd 0 3 m 2 cs Q Q Oy Ya CO C1 O , Z Z O , 4 , 4 , 4 4 ccti) v) , 0 , 0 I— 1- 350 Y Y Y Y Y Y Y Y 935 100 32 20 Y Y Y Y Y Y Y 5 Y Y Y Y Y Y Y Y Y Y Y 100 Y Y Y 102 Y Y Y Y Y Y Y. YYYY YY YY 33 Y Y Y Y Y Y Y Y Y YY Y Y 4 Y Y Y Y Y Y 8 Y Y Y Y Y Y Y 2 Y Y Y Y Y Y Y 2Y Y Y Y Y Y Y 1 Y Y A-_ - -- 8 Y Y Y Y Y Y Y Y 7 Y _ Y Y Y Y Y Y 8 3 .. _ _ Y Y Y 12 Y Y Y 13 Y Y Y Y Y Y Y Y Y 2 YY Y Y 11 �.,.., 20 Y Y y y Y Y Y Y Y Y 12 Y _ Y_ . _ Y 18 Y Y y 4 -111111111111r7 71 Y Y Y YYYYY Y Y 6 Y Y MIIIIMNIII 15 V s -_. ;: Y Y Y Y 12 31 _ _._ W_ 4 COMPREHENSIVE PLAN UPDATE 1998 EXISTING AND PROPOSED TRAILS DEMAND Trails can accommodate various transportation User surveys constitute an important tool in the - modes. Walking, jogging, in-line skating, bicycling, assessment of recreational demand. In January cross country skiing, snowmobiling and horseback 1997, a survey was conducted to determine support riding are frequent uses of trail systems. For the for a park bond referendum. General questions - purpose of this plan, the City's trails are categorized relating to existing services/facilities were also into two general classifications: walkways/bikeways included. Four hundred randomly-selected and nature trails. Chanhassen residents were surveyed. The most notable results are outlined in this section. Walkways/Bikeways Existing Park System These trail facilities are designed to accommodate both bicycle and/or pedestrian use. The trails are The residents of Chanhassen overwhelmingly (80 generally eight feet in width (Appendix-Figurel.2). percent) rated the availability and condition of existing recreational facilities as "excellent" or - Nature Trails "good." One-quarter of the respondents indicated that they felt positively towards recreational facilities These trails are designed solely for pedestrian because they are "accessible." - usage. In some areas of the City, particularly in the southern portion, they are used to provide public New Trails access to areas isolated by extreme topography, tree cover or other factors. The majority (55 percent) of the residents surveyed indicated that they would support a bond Other Trails referendum for the construction of new trail links to form a comprehensive system. The Southwest Regional LRT (Light Trail Transit) Trails, part of Hennepin County parks, traverses Urban Sprawl through the southern portion of the City. It extends - from Lake Riley to Chaska running parallel to Hwy. The majority, or sixty-one percent, of residents 212. surveyed supported the preservation of open space before it is lost to urban sprawl. Other special use trails also exist within the City. For instance, snowmobile routes are designated by Sources of Information about the Chanhassen private clubs, in cooperation with the City, that Park System _ connect to routes in adjacent communities in Carver County. The advertising that the City has done through the newsletter has been successful as sixty-eight t, percent of the respondents indicated that they were + r :-1/"/ "very well informed" or "somewhat well informed" 41 • f rk"; •y.e$ about the park system. Only four percent stated that they were "not at all informed." u�.n .r► .iy,.__,:i Forty-three percent of the respondents cited "usage" > • as to how they obtain information about the park ` and trail system. The "Villager" followed with twenty-six percent. • In response to questions regarding the park system, .1"., the highest percentage (70 percent) of respondents ;. indicated that they utilized "smaller neighborhood parks." Sixty-four percent stated that their 5 COMPREHENSIVE PLAN UPDATE 1998 household used the "community parks." And one- and the construction of trail segments throughout half of the residents reported using the "trails." the City. The following is a list of the improvements, expansions and constructions that is proposed to Proposed Recreational Projects take place. In the survey, respondents were asked their opinion IMPROVE NEIGHBORHOOD PARKS on new recreational facilities ranging from a golf course to an ice area. For instance, forty-seven Carver Beach Park percent stated that they oppose a municipal golf Carver Beach Playground course. There was a similar response for both an Chanhassen Hills Park outdoor and indoor municipal swimming pool. Curry Farms Park Forty-nine percent were opposed to an indoor pool Galpin Boulevard Park and fifty-one percent were opposed to an outdoor Herman Field pool. The survey indicated that many (47 percent) Kerber Pond Park of the residents do not support an indoor ice arena. Meadow Green Park However, fifty-six percent stated that they would Minnewashta Heights Park Noah Lotus Lake Park support a "full service community center." Pheasant Hill Park 2020 PARK AND OPEN SPACE PLAN Power Hill Park Prairie Knoll Park Rice Marsh Lake Park The 2020 Park and Open Space Plan places an Roundhouse Park greater emphasis on preserving passive open South Lotus lake Park space than acquiring land for an active use. The Stone Creek Park natural features found in this City enable passive, Sunset Ridge Park nature-oriented recreational activities. The City _ recognizes that this sensitive land is finite in supply. EXPAND COMMUNITY PARKS As development has occurred. the challenge of Bandimere Park accommodating the needs of the population and City Center Park — protecting and preserving the vulnerable environment has become apparent. NEW TRAILS Hwy. 7 (1 mile) Land Use Plan Galpin Boulevard (1.75 miles) Powers Boulevard(1.5 miles) The 2020 Land Use Plan indicates that 12 percent Great Plains Boulevard (.5 mile) (1,707 acres) of the land in the City is guided park Bluff Creek (.75 mile) — land or open space. Although this plan does not Pioneer Trail (1.25 mile) specifically provide for additional park and open space, recreational facilities will need to be constructed to serve those not located within the Recreational Needs Based on Population service area of an existing facility. Open space will be maintained using the standards of the Bluff The 2020 plan will address the needs of future Creek Overlay District. Also, highly desirable open populations. This need is calculated using the space parcels are proposed to be purchased in the population ratio standard. This standard is southern portion of the City. expressed as a number of acres of park land per one thousand people and is used to provide a - 1997 Park Bond Referendum general guideline for the assessment of future needs. Only parks will be assessed since a In June 1997, a $4.9 million park bond was standard is absent for open space. This approved. This funding will enable the majority of assessment will only be completed for the years the parks to be improved, the expansion of two 2000, 2010 and 2020. parks, the preservation of open space in the southern portion of the City (south of Lyman Blvd.), 6 COMPREHENSIVE PLAN UPDATE 1998 Park System (overall): 13 acres/1,000 people Neighborhood Park: 5 acres/1,000 people • Pursuit of arts and theater programming - Community Park: 7 acres/1,000 people Create an Arts Council • Installation of historical street markers - The following standards are utilized in the tables Establish a history center below: • Development and focus on high school 2000 ASSESSMENT OF FUTURE NEED-POPULATION 19,045• programs • Construction of a BMX rail - work on Estimate Existing for youth development Component Acreage Standard Acreage Net 2000 programming p — Needed • Continue commitment of resources to Bluff Park System 526 13 acres'1,000 248 +278 Creek Greenway (Corridor) Neighborhood • Identify and explore community partnerships, 234 c acres.1,000 95 +139 — Park e.g. Lifetime Fitness, Minnesota Orchestra, Golf CommuniqCourse 7 acres/1,000 133 +]59 �, Park • Acquire open space to preserve the historical — 2010 ASSESSMENT OF FUTURE NEED-POPULATION 26,753' landscape, including Chaska brick homes Park System 526 13 acres'1,000 348 +178 • Consider another park referendum in five years Neighborhood234 • Complete trail loop around Lake Ann 5 acres/1,000 134 +100 — Park • Development of facilities that create a revenue Community , acrz; 1 n x 87 +105 system to provide alternative funding for park Park programs such as a community center or golf — 2020 ASSESSMENT OF FUTURE NEED-POPULATION 35,400' course Park System 526 13 acres'1,000 460 +66 PARK AND RECREATION GOALS AND POLICIES Neighborhood ,14 5 acres1.000 177 +57 Park GOAL Community 292 7 acres/1,000 248 +44 Park The City of Chanhassen will provide recreational -C,ty of Chanhassen Planning Department Pr0lecton5 Table 4 3 facilities and open space areas which will reasonably meet the outdoor recreation needs of These estimates indicate that the City currently the community's residents and preserve and protect fulfills the estimated assessed need for 2020. environmentally sensitive areas and varied However, additional neighborhood parks will topography. probably be needed to serve new residential areas not located in an existing facility's service area.— POLICIES IMPLEMENTATION • Provide park and open space facilities that - The primary focus of the 2020 plan will be open emphasize accessibility and use by Chanhassen space or passive recreation, although the City residents. recognizes that there will be a need for additional • Coordinate that expenditure of local funds for — neighborhood recreational facilities to serve new residential areas. One additional regional park may recreational open space with the schedules for the be considered in the southern portion of the city. It provision and development of other municipal shall be a priority to preserve environmentally services. sensitive or significant areas before they are • The City should update and adopt the recreation destroyed or altered by development. open space element of the comprehensive plan at least every five years. An annual assessment of The Park and Recreation Commission met and programs, identified needs and the capital established the following issues as actions that they improvement program should be conducted. will work toward implementing: 7 COMPREHENSIVE PLAN UPDATE 1998 • Negotiations for the acquisition of recreational • Provide a recreation system that integrates open space areas should be based upon appraisals manmade facilities into the natural environment of by qualified appraisers. Reasonable efforts shall be the area. made to acquire land by negotiated purchase before utilization of the power of eminent domain. • Develop a park and open space plan which is consistent with and compliments the overall land - • The location, design, use and impact of recreation use plan for Chanhassen. facilities should be compatible with and enhance the environment of both the site and surrounding area. • Provide a system of neighborhood parks which are centrally or conveniently located within the area • Abandoned right-of-way should be reserved and they serve and where possible, are integrated with preserved for public use if they can be utilized for school facilities. - recreational purposes. • Encourage citizen participation in the planning for • Encourage the cooperative effort between the and development of park and open space facilities. school system and the City in the acquisition , development and usage of recreational lands and • Continue to seek assistance from community facilities. groups in the planning and development of - recreation areas. • Provide open space areas which assist in the conservation and protection of ecologically sensitive • Provide a balanced park system which includes - areas. neighborhood parks, community parks, special use facilities, schools, and private developments; all -- • interconnected by a linear trail network. 4. } • Where possible, neighborhood park lands should be planned for, prior to development to ensure that future facility demands can be met. - • The location of neighborhood parks should be r t' pi identified in areas that do not require the crossings f� 4°: _ ' ' R.`' 'F!- \ ' of major thoroughfares by small children. . �= liNi' , ' � e , om ,�� ��.r, --,Oho.�,; ., t. , �,, • The planning for recreation and open space - s. r off ! �: *�,tR r 1� within Chanhassen should concentrate on total •- '--- is# •• mmin rather than em hasizin,� ,.� �,.� .,*,�` ` environment progra g P 9 - _ ''4 fl, •• ,41 4, ''�1 ``` facility programs. Recreation activities will be ' ; - `. - designed to appeal to all age groups. • .,i a .-2 .. s.'S'2,"fi g i a� ' -+�. 8 PL VARIABLE MINIMUM 11' I 10' VARIES 1/2"TOSLOPE T TOWARD ROADWAY I .. •TOPSOIL TYPICAL— I 3" BITUMINOUS TYPE 41 WEA50055Y6" CLASS 5 BASE (100% CRUSHED) COMPACTED SUBGRADE PER SOIL ENGINEER NOTES: 1. Shoulders to be restored with 3" of topsoil and re—vegetated with sod or seed / mulch. 2. The contractor or developer shall supply a 2 year 100% mcintencnce bond upon city acceptance. • , .� CITY OF BITUMINOUS '\,l , CAAN TRAIL REvisED: 1 -98 DA7E. 2-97 Figure 1 .2 1 ' '/i-__ ......k-.., ''\`, _ I, 'f\\� • \\ ..\\ 1. ' / ,\ . \s, _ / / 3 \ \\ r / r ' O \ // 1 / I — \1 I / - 1 1 i o ;I I I 1 I I II 11 1' s eD i l I I —.I - I I /II1 '? I / , i _ / /' t I i I r// • Z O ra 0.4 ••••• .. I Bandimere Heights Neighborhood Park MI Hoisingtort N° °r Group Inc. 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I i g ! t 3 t i '�.� i ; . oivom—P0,47i w '�QST\^ 4 • ! COMPREHENSIVE PLAN UPDATE 1998 CHAPTER 5 additional traffic is anticipated to divert to the local system. INTRODUCTION — Carver County is in the process of updating their The City of Chanhassen is located in northeastern Comprehensive Plan including the transportation Carver County approximately 30 miles from element. It is important to note that the system — downtown Minneapolis (Figure 1). It is in the changes and traffic forecasts included in this plan urbanizing area of the Twin Cities Metropolitan are only in draft form and that some modifications area, and is expected to be nearly fully developed may occur to county facilities and forecasts as the — by the year 2020. report is completed over the next three months. Several regional highways provide Chanhassen Study Goals And Objectives with accessibility to the metropolitan area and to outstate Minnesota. These include MN Trunk The Transportation Plan sets forth how the City of Highway 5 which runs east/west and interchanges Chanhassen will achieve its goal of creating an with 1-494 east of Chanhassen in the City of Eden integrated multi-modal transportation system which Prairie: MN Trunk Highway 7 which runs east/west permits the safe, efficient and effective along the northern border of Chanhassen, MN Trunk Highway 41 which runs north/south along the — western portion of the city, and CSAH 101 which lilm„) runs north/south bisecting the southern portion of E4 V e the city and defines the northeastern border of di 0 - Chanhassen with Eden Prairie. `e `.""lb._ SLP The Chanhassen Transportation Plan is currently g N 1 fly based on the City's 1987 Land Use and Fes. �..,./■ Mad Transportation Plan. Updates to these plans have • „� -. been undertaken by the City to recognize changes ' ,�, lj x .„„�,, FP."" in land use, development patterns and other / planning processes including: the Minnesota Department of Transportation's "Transportation System Plan" (TSP) and Carver County's — Transportation Plan update. The TSP was movement of people and goods while supporting prepared in 1997 and outlines major transportation the City's development plans, and complementing investments for the transportation system in the the metropolitan transportation system that lies — seven county metropolitan area. The TSP within its boundaries. To accomplish this goal, the identified $10 billion in transportation needs in the Transportation Plan: region with only $3 billion in funding. As a result of this funding shortage, many needs throughout the 1. Defines the density and distribution of future metropolitan area will go unmet over the next 20 land uses and their relationship to the years. Unfortunately, this includes City of proposed local transportation system, and Chanhassen and the eastern Carver County area. the anticipated metropolitan transportation The TSP identified current LOS problems on system. regional routes such as TH 7, TH 5, TH 41, and TH 212, but has only allocated improvement funds for 2. Develops a functional hierarchy of streets - a limited extension of four lanes on TH 5 out to TH and roads and define their access to the 41, and the first phase of TH 212 out to CSAH 4 in regional system to ensure that they support Eden Prairie. Given these limited capacity the existing and anticipated development of — improvements to regional facilities, operational the area; serve both short trips and trips to (congestion) and safety problems on these facilities adjacent communities; and complement and will continue to increase. Since the regional support the metropolitan highway system. facilities are anticipated to function poorly, -- 1 COMPREHENSIVE PLAN UPDATE 1998 3. Establishes a system improvement and Through the development review process, the City — completion program that ensures that higher will strive to discourage development from priority projects are constructed first: occurring within the designated roadway corridors maintains a consistent and coherent roadway as well as limiting access to collector streets, minor system during the roadway system arterials, intermediate arterials and principal _ development process: and provides for arterials. adequate funding for all needed Promote safe and convenient access connections improvements. between the highway system and major commercial 4. Identifies what transit services and travel areas, industrial uses, and residential demand management strategies are neighborhoods. appropriate for implementation in Roadways Chanhassen in order to increase the number and proportion of people who use transit or Encourage multiple use of right-of-way areas share rides, and reduce the peak level of accommodating various modes of transportation. demand on the entire transportation system. New roadway facilities should be constructed in 5. Identifies the strategies and policies that conjunction with new developments and designed need to be implemented to properly integrate according to the intended function. They should be the trail system (pedestrian. bicycle, etc.) with planned and designed to be compatible with the the proposed roadway system, to ensure the surrounding environment. provision of trails in a sequence consistent Existing roadways should be upgraded when with the development of the roadway system, warranted by demonstrated volume, safety or and to create a rational network of sidewalks. functional needs. Because this analysis deals not only with streets Access points to the regional roadway system and highways. but also with land use, trails, transit, should be adequately controlled in terms of traffic management and other topics, the results will driveway openings and side street intersections. constitute a Transportation Plan. The plan will Residential street systems should be designed to serve as the Transportation Element of the discourage through traffic and to be compatible with Comprehensive Plan. other transportation modes including transit, bicycle and walking. Transportation Policies The City will implement roadway design standards The Metropolitan Council's Transportation Policy and inspection practices which ensure proper Plan identifies a policy framework within which the construction. Chanhassen Transportation Plan was developed. The City's transportation policies are supportive of Transit metropolitan policies and consistent with the plans and programs of the Metropolitan, County, and The City encourages all forms of ridesharing in State systems and relate directly to the objectives order to reduce vehicle miles of travel, reduce _ of the City of Chanhassen. These policies are as petroleum consumption, and improve air quality. follows: The City will review all major new developments in light of the potential for ridesharing including bus General accessibility, preferential parking for carpools/ vanpools, and mixed use development. Thoroughfares and major routes should be planned so as to reduce conflicts between external traffic The City will support Federal, State, Metropolitan and local traffic while minimizing the disruption or and local efforts directed toward the provision of rail division of the logical pattern of development in the transit for the community, the region, and the state. - community. The City encourages cooperation with the Metropolitan Council and Southwest Metro Transit 2 COMPREHENSIVE PLAN UPDATE 1998 Commission in order to provide future transit street and pedestrian connections to maximize service to and within the community. The City will safety and ease of access. support the development of park and ride facilities - that encourage transit use. Sufficient setbacks and/or berming should be designed into all development projects adjacent to Parking major public roadways. The City will continue to review new developments Coordinate existing and planned transportation for adequacy of parking based upon need and the facilities and their capacities with land use types potential for joint use of parking facilities. and densities with particular emphasis on land Sufficient parking and transfer and bus stop development in the vicinity of interchanges and facilities areas should be provided to meet the intersections. - needs of mass transit in major employment and commercial areas and in higher density residential The City will continue an ongoing maintenance and mixed use areas. program in order to maximize the community's investment in transportation facilities. Pedestrian:Bicycle For proposed developments, the City will require Major activity centers should provide accessibility to detailed circulation and access plans which depict pedestrians and bicycles including necessary the impact of the proposed development on both storage facilities. the existing and future transportation systems. The City will promote increased development of The City will support Federal, State, Metropolitan bikeways and trail facilities in order to conserve and local efforts directed toward the timely energy resources, enhance recreational construction of Trunk Highway 169/212, upgrading opportunities and assist in the abatement of of TH 5, realignment and construction of CSAH -- pollution and congestion. 101, south of TH 5. upgrading of 101 north of TH Pedestrian and bicycle trails should be 5, TH 41, and other facilities serving the area. interconnected with major generators and have continuity across major roadways and other Chanhassen will coordinate efforts with Eden barriers. Prairie and other appropriate jurisdictions to insure that Highways 5 and 101 continue to Sidewalks and/or trails should be required in function effectively. commercial, industrial, medium and high density residential areas; adjacent to schools and other Chanhassen will coordinate the construction and _ public buildings: and along at least one side of maintenance of hard surfaced local streets. collectors and other high volume roads. collectors, and arterials. Within the Rural Service Area, the City will provide and maintain a Other transportation system consistent with the needs of agricultural land uses. The city will utilize the land use plan and transportation plan maps to illustrate planned road DESCRIPTION OF STUDY AREA - alignments and to facilitate their acquisition and construction as new developments are proposed. The City of Chanhassen is located in the northeast The plan maps will illustrate all collector and arterial quadrant of Carver County in Minnesota. - street alignments. They will also be amended from Chanhassen is bounded by the City of Eden Prairie time to time by the City during the subdivision on the east, the City of Shakopee and the review process. Minnesota River on the south, the Cities of Chaska _ and Victoria on the west, and the Cities of As a part of platting, each development should Shorewood and Minnetonka on the north. provide dedication and improvement of public _ V streets consistent with the standards found in city ordinances. The city will promote the provision of __ 3 COMPREHENSIVE PLAN UPDATE 1998 — LAND USE uses to "guide" future development so that it is `- consistent with current and future land uses in the Existing Land Use City. Existing development within the City is influenced by (� --,,,.• ; „...it. ��— — - _ several factors including the relative location of the I .. r Minneapolis CBD, the location of metropolitan r` ►f"----r I ,,;,„dhighways. and the location of several lakes within1.......7.... 0., - -r---------------- -'*------� the City. Residential development has occurred 1 4, /` 1 __ primarily in the northeast portion of the city, with �� some large lot developments in other areas. j i /' Commercial areas in Chanhassen have developed :- / along the major highway corridors of Trunk Highway ~ 1 5 and Trunk Highway 41. For more information on �,n ��' ��� """" land use with in the city see the land use section of — the comprehensive plan. e. Metropolitan Urban Services Area '.� __ ►t — I E • The Metropolitan Urban Services Area (MUSA) is r.,..., ; depicted in Figure 2. The purpose of this boundary ---. - ;i lEden i is to define the areas within the Twin Cities Metropolitan Area that are eligible for "urban services", specifically sewers, municipal water - f City of Chanhassen 1 + ► systems and particular types of transportation McvgW,unUrban _ — S ,�aAroP,rt:SA> -' systems. This boundary line is defined and ; �� i- 01Wnn,<2020M1'SA• i maintained by the Metropolitan Council to assist in .,b.ie rat SA.B•wov., f • ...", the orderly development of the metropolitan area. M� � 1 ;�- ' — Areas within the Year 2000 MUSA Line are ® -4- _ + �'' F���ez considered to be available for development prior to the year 2000. _ Socioeconomic Characteristics The location of the MUSA line is, therefore, a valuable guide in determining the priority of The analysis and projection of regional traffic roadway improvements. The roadway system within conditions is conducted utilizing a technique known the MUSA area is going to be in demand much as traffic analysis zones. Traffic analysis zones sooner than the roadway system outside. This is (TAZ's) are defined geographical areas within which one of the reasons for having such a boundary. It data such as population, employment and — allows municipalities to focus limited resources on household information is collected. This data is particular parts of their territory. All of Chanhassen analyzed through computer modeling techniques is expected to be within the MUSA by the year which results in forecasts of traffic movement 2020. between zones. Utilizing this technique, it is possible to project travel and demand such as person-trip Land Use Plan productions, person-trip attractions, intrazonal person trips and motor vehicle data such as The currently adopted Comprehensive Land Use average daily trips and peak hour trips. This data Plan, which was last revised in 1987, defines areas is valuable in both local and regional transportation where the City will encourage specific types of land planning. uses to be developed. The general categories of land uses defined by the City are residential, Table 1 shows the past census population, commercial, mixed use, industrial, school/public and households, and employment as well as 2020 parks. The Land Use Plan is a tool that the City forecasts for the City of Chanhassen. From 1980 4 COMPREHENSIVE PLAN UPDATE 1998 to 1995, the population and the number of CITY OF CHANHASSEN P P 2020 POPULATION,HOUSEHOLDS AND EMPLOY1IENT BY TAZ households in Chanhassen more than doubled, TABLE 5-2 increasing at annual rates of 6.0 percent and 6.3 , Population Households Employment City of — percent. respectively. By 1995 Chanhassen's Metropolitan Chanhassen employment had grown more than three times the Council TAZ TAZ 1995 Toto 1995 2020 1995 2020 1980 figure, at a rate of 8.8percentperyear. 136 136A 880 1442 303 520 35 50 g rising 1368 379 555 131 200 94 160 — City forecasts are based on the location of existing 1360 441 1165 152 420 23 40 136D 105 55 36 20 18 55 development and an understanding of the rate at 136E 3 638 1 230 35 35 136 1808 3855 623 1390 205 340 which development is occurring both within 137 137A 441 694 152 250 15 20 Chanhassen and throughout the region. 1378 63 2081 22 750 6 70 137C 400 721 138 260 14 25 137 904 3495 312 1260 35 115 POPULATION, HOUSEHOLDS AND EMPLOYMENT PAST CENSUS TOTALS AND 2020 FORECASTS 138 138A 1340 2358 427 850 48 85 138B 580 2497 199 900 26 90 _ TABLE 5-1 136C 0 0 0 0 5 140 138 1920 4855 626 1750 79 315 1970 1980 1990 1995' 2010 2020 139 139A 2412 2774 631 1000 87 100 1398 2137 3107 736 1120 450 600 Population 4 879 6.359 11,732 15.231 25.000 34.500 139C 3 22 1 8 722 1000 139 4552 5903 1568 2128 1259 1700 Households 1.349 2,075 4.016 5.198 9.500 13.500 1401401 1242 1561 427 570 45 57 1408 221 444 76 160 8 16 140 1463 2025 503 730 53 73 Employment 900 2.102 6.105 7,422 11.820 12.300 141 141A 869 1581 299 570 117 1700 1418 1103 1221 380 440 1310 150 141 1972 2802 679 1010 1427 1850 Estimated 1995 socioeconomic figures from Metropolitan Council 142 142A 324 75 112 27 101 2500 142B 718 971 247 350 303 1000 — 142C 35 1526 12 550 2225 650 The City forecasts indicate that the number of 142 1077 2571 371 927 2629 4150 households will more than double between 1995 143 143 251 565 86 200 598 1800 and 2020, an annual increase of 3.3 percent. This 144 144A 634 1664 218 600 23 200 — rate of growth will result in the doubling of 1448 179 2219 62 800 64 200 144C 14 14 5 5 10 10 population over a 20-year period. The projected 144 827 3897 285 1405 97 410 growth shows a steady increase between the first 145 145A 141 1609 48 580 6 700 145B 242 1886 84 680 25 800 — ten years and the last ten years. Employment is 1450 47 55 16 20 109 350 also forecast to grow to more than two times the 145 430 3551 148 1280 140 1850 1995 figure, agrowth rate of 2.0percentperyear. 146 146A It 2219 4 800 15 100 g 1468 II 333 4 120 1 800 146 22 2552 8 920 16 900 Table 2 shows the City of Chanhassen's forecast TOTAL 15226 36071 5209 13000 6538 13503 for population. households. and employment by _ TAZ for 2020. The TAZ locations are shown in Table 5-2. SOCIO-ECONOMIC DATA COMPARISON Table 3 compares the Metropolitan Council TABLE 5-3 forecasts of population, households, and city of Metropolitan employment with forecasts made by the City of Chanhassen Council 2020' 20202 Chanhassen. Population 36,071 34,500 The Metropolitan Council's 2020 forecast for population, households, and employment is very Households 13,000 13,500 — similar to the city's. Differences in forecast population and households arise primarily from a Employment 13,500 12,300 difference in the estimate of household size. The Metropolitan Council projects a household size of Totals from TAZ zones. Projections and allocations were made by the City of Chanhassen Planning Department. 2.55 persons per household while Chanhassen estimates a household size of 2.77 persons per 2 From Metropolitan Council Preliminary Forecasts of Population, household. Households. and Employment(Regional Growth Strategy, March 1997). 5 COMPREHENSIVE PLAN UPDATE 1998 ANALYSIS OF EXISTING AND FUTURE Table 4 shows the major components of the existing ROADWAY NEEDS street system in the City of Chanhassen along with each facility's termini. Determining future roadway needs is based on both an analysis of existing roadway needs and an CITY OF CHANHASSEN understanding of how traffic demand will grow in the IMPORTANT TRANSPORTATION FACIUTIES future. A good indicator of existing need is traffic TABLE 5-4 congestion. However, maintaining system continuity as new land develops is also important. Identifying — HIGHMwY/STRFEr FROM TO future need requires an understanding of how the city is expected to grow. The preceding section outlined the expected distribution of population and TH 7 Wast Unit North Unit _ employment. Forecasts of traffic based on these TH 5 Wast Unit East unit socioeconomic forecasts were made for the existing TN 41 Nath unit South unit CSAHroadway system including improvements that are TH21 101 North Unit South Unit H 212 Wast Unit TH 16TH 212 already programmed. This allows the detection of TH 169 TH 212 East Lirrit problems that would develop if no further system -D-1169 7H212 South Unit improvements were made. This section identifies Ninrewashta Parkway TH 5 TH 7 ` both existing and future roadway system needs. Galpin Boulevard TH 7 TH 5 Powers Boulevard(CR 17) North Unit Lyman Boulevard Existing Roadway System Kerber Boulevard CR 17 Wast 78th Street Market Boulevard Wast 78th Street TH 5 — As with all municipalities, jurisdiction over the Park Road Powers Boulevard Audubon Road roadway system is shared among three levels of Lake Road Galen Boulevard CR 17 Pleasant View Road CR 17 CSAH 101 government: the state, the county and the city. _Lake Drive East Dakota Avenue CSAH 101 — The Minnesota Department of Transportation (Mn/ qudubo,,Road TH 5 Chaska Unit DOT), through its metro-district Golden Valley, Pioneer Trail \N st Unit East unit maintains the interstate and trunk highway system Buff Creek Dive Pioneer Trail TH 212 _ on behalf of the state: Carver County maintains the take Riley Boulevard* Lyman Boulevard East Unit County State Aid Highway (CSAH) and County Lyman Boulevard Wast umt East Unit Road systems. The remaining streets and _ roadways are the responsibility of the City. Notes *Lake Riley Boulevard North of lake has been renamed Lyman Boulevard. The existing street network includes approximately 140 miles of road. This represents almost a doubling of the road system from 75 miles in 1990. Existing Traffic Volumes ROAD TYPES AND LENGTHS — Traffic volumes for the different highway segments Road Type Length in Miles within Chanhassen were collected from Mn/DOT traffic maps. These volumes represent 1996 __ Trunk Highway 17.89 average daily traffic volumes and are shown on Trunk Highway Turnback 0.99 Figure 3 (next page). County State Aid 8.73 Existing Transportation Issues/Deficiencies Municipal State Aid 16.75 The function of a transportation plan is to not only County 3.05 accommodate future needs but also to analyze — existing problems and pose appropriate solutions. Local 92.46 Frequently, existing problems are closely related to future needs. As a result, a specific action in a TOTAL 139.87 given area can remedy existing deficiencies while providing for future needs. 6 COMPREHENSIVE PLAN UPDATE 1998 2. Trunk Highway 5/Lone Cedar Lane - The sight Li....,. '6A0 distance for southbound traffic on Lone Cedar j-4 ' ... - , k,_ Lane looking west along TH 5 is restricted by a -y _ , ,45 ' "i • r . j,,,,, hill. Chanhassen has entered into a cooperative `�:. ,z�o c f ,- :' agreement with MnDOT to close the existing �.= ,,— 1'' 'If .c.-„ -,7' .21-01.4- 01;7.2fd,a. access to TH 5 and replace it with a cul-de-sac. �.�; - ;-'--� 0. fi__ 3. CSAH 101/96th Street - At this intersection, a _ -; -"- k��t5'� blind curve exists due to the vertical curve of ,, '- 4 "°0L; CSAH 101. In 1989. sight distance was -�� °y—+ n jC enhanced by the removal of trees in the area. a7.00071 ' I a I Further improvements are unlikely until CSAH r .�^ .,... , 101 is reconstructed in the future. - OM o .,,off ; /45;i4;.. 4. Pioneer Trail and CSAH 101 - Sight distance .r �� °°° problems occur for traffic on Pioneer Trail due ;) ... to the vertical curvature of CSAH 101. ` Improvement of this situation requires a comprehensive approach and is not likely to -+o occur until CSAH 101 is improved in southern ® Chanhassen. Soares Data Basso en,s5+Mrv0OT Map volumes ._ ( FI 5. CSAH 101 Recent improvements to this EXISTING TRAFFIC VOLUMES 3 intersection have significantly improved safety. ,....-RR—. CM(OF CHANHASSEN Heavy traffic volumes continue to pose problems in this area. The construction of new -`- Issues and system deficiencies were categorized TH 212 in the future will remove some of the into three areas: 1) intersections, 2) roadway existing traffic in this area. capacity/alignment/connection and 3) jurisdictional - continuity. The major issues are shown on Figure 4 6. Trunk Highway 7/Lake Minnewashta area - TH 7 and discussed in more detail as follows: in northwestern Chanhassen along the north side of Lake Minnewashta intersects a number Intersections/Access of local streets. Due to heavy traffic volumes, particularly during peak hours, turning Chanhassen contains a number of intersections movements in this area are difficult. In this _ that currently are experiencing problems. A area, TH 7 does not contain lanes specifically summary of these occurs as follows. designed to accommodate free flowing traffic. Eventual implementation of the 1. Trunk Highway 7/Minnewashta Parkway - The recommendations contained in the TH 7 major problem with this intersection is the angle Corridor Study will improve conditions in this with which northbound Minnewashta Parkway area. joins TH 7. As a result, it is difficult to identify - eastbound traffic on TH 7 and turning 7. Trunk Highway 5/Arboretum Entrance - Turning movements from eastbound TH 7 to movements into and out of the Arboretum are southbound Minnewashta Parkway are complicated by the heavy traffic volumes along - cumbersome. The City of Chanhassen TH 5. In the future, this situation should be completed improvements to Minnewashta addressed in the reconstruction of the western Parkway in 1993. Due to heavy traffic volumes, segment of TH 5. _ particularly during peak hours, turning movements in this area are difficult. Installation 8. Trunk Highway 41 - Some areas of TH 41 have of a traffic signal at this location is anticipated in inadequate sight distance (vertical alignment the future. could use improvement). This improvement - would normally requires major reconstruction. 7 COMPREHENSIVE PLAN UPDATE 1998 _ Figure 4 8 ---- -4 7tilir '41.•1--- ko 1 a %--. ilk • ' - 414ti'-' ' m Lakea\\`kC�� =__ >Minnemashta y m ��, r 10 --- -:I 11' IiIi * elk 41161111111f4111 �n .o--••rai. ..� �� : _�X� 11,,_ ::: �m�iarm why,..7;__.-;:f-------- T ©► •1/ 61,0f _ . 041 or rip. . . ,,:.::;___.v , __,,,„.,. . _= , _s, 6 I l iv . __ ..,.,. ..„. 1 ...... I . r,..;‘,., 11-1-\* li .: _-4 i '-'^ 101 1 It - �Pion,,,,Trail wr;941, • _ INTERSECTIONS/ACCESS SYSTEM/CONNECTIONS \„ JURISDICTIONAL CONTINUITY _4 EXISTING CAPACITY PROBLEMS loft .Q-diiiiiii GEOMETRICS/SAFETY *4-10 ° 1135, tot // /=\ lzwr I2 F 2 , tir,,,,,es°`a — — FIGURE_ VI EXISTING SYSTEM DEFICIENCIES Coaso2nac Guoce.lac. 4 SRF NO.0972827 N CITY OF CHANHASSE COMPREHENSIVE PLAN UPDATE 1998 Improvement of this area is not included in 17,500 south of TH 5. However. some counts MnDOT's 20 year capital program. have occurred as high as 20,000 As the metropolitan region expands, north-south Road Capacity/Alignment/Connections routes in this area will become more important as destinations are less centered on Twin Deficiencies in this category are evident due to Cities urban core. Currently. there is a lack of capacity problems created by excessive volumes, good north-south routes that provide alignment issues, or due to connection problems. connections between east-west principal Capacity problems are also caused by a lack of arterial routes and major river crossings. Trunk proper lane channelization, lack of signalization or Highway 41 is the only north-south route in the due to the frequency of accesses. Specific area that has significant continuity and examples of such circumstances include the connects to a major river crossing. Even following: though it provides an important function for the region. there are no major improvements 1 . Existing capacity problems are evident on a planned for this facility. As a result, other number of key regional facilities within the City. parallel routes will become more important in The Transportation System Plan (TSP) which distributing the traffic demand during peak was completed by Mn/DOT in 1997 and the traffic periods. This includes: Audubon Road Carver County Plan Update which is in and Galjpin Boulevard.. progress both show congestion on all major east-west routes (TH 7, TH 5, TH 212). These • Trunk Highway 7 —Congestion on this route facilities provide mobility functions into and out occurs on this route east of the TH 41 junction _ of the region and are critical to the during peak hours. Average daily traffic development of and quality of life in volumes range from 17,000 west of TH 41 to Chanhassen. Existing capacity issues within 24,500 east of TH 41. the city are described as follows: • Audubon Road (CSAH 17)— Existing • Trunk Highway 5 - Excessive congestion on volumes on Audubon Road are 9,500 vehicles this route occurs during morning and evening per day. This volume suggest that capacity — peak hours. In 1998, the four lane divided levels are being approached for this two-lane arterial portion of TH 5 on Chanhassen's facility. eastern boarder carried 50,000 vehicles per day. New TH 212 will provide some relief to TH 2. County State Aid Highway 101(formerly known 5; however, TH 212 is not in Mn/DOT'S 20-year as TH 101) - CSAH 101 is classified as an "A" capital improvement program. While the minor arterial. It is located along the eastern planned four-lane improvements will improve boarder of Chanhassen. Prior to being traffic flow on TH 5 out to TH 41, they are not converted to a CSAH route, it was designated anticipated to resolve traffic problems on as a temporary Trunk Highway and as such. it segments of TH 5 which have volumes that did not receive appropriations for any major exceed the four lane capacity (approximately improvements. Recently, Hennepin County and 45,000). If it is the goal of the City to have TH Carver County accepted jurisdiction of old TH 5 function at an acceptable level (minimal delay 101 and renamed it CSAH 101 within their during peak hours), it is extremely important to County boundaries. As a result, the facility is support construction of TH 212 to assist with eligible for Trunk Highway Turnback funds. the traffic load or ultimately expand the The highway has significant alignment and capacity of TH 5 to a six-lane expressway. geometric problems particularly south of TH 5. Carver County and Chanhassen are to take • Trunk Highway 41 — This route bisects the the lead role in promoting the improvement of _ western portion of Chanhassen and operates CSAH 101 south of TH 5. Hennepin County is in a congested state during morning and the lead agency on CSAH 101 north of TH 5. evening peak hours (LOS F) south of TH 5. Currently, the county and city are working on Existing volumes average from 15,000 to completing a joint powers agreement for 9 COMPREHENSIVE PLAN UPDATE 1998 developing improvements to CSAH 101 south 2. CSAH 117 - is very similar to CSAH 17. The of TH 5. route functions effectively until it reaches the northern portion of Chanhassen where its 3. Pleasant View Road - The existing roadway alignment restricts traffic movement. alignment is inadequate in several areas. Sharp curves. garages located at the 3. Trunk Highway 5 - Issues pertaining to TH 5 right-of-way line, hidden driveways and have been previously presented. The frequent vistas of Lotus Lake which serves as a jurisdictional continuity of TH 5 is extremely distraction, all combine to create potentially important to Chanhassen. Chanhassen will dangerous conditions. Previous efforts to need to continually monitor MnDOT plans for improve Pleasant View Road have been this route as well as the desires of adjacent unsuccessful. As a result, the inadequacies of municipalities to ensure that TH 5 continues to this route will continue to intensify in the future function at the highest feasible level of service. as traffic volumes increase. 4. County State Aid Highway 101 - The 4. CSAH 17 - South of Pioneer Trail, further importance of additional north-south routes extension is not feasible due to existing with continuity has been discussed extensively development and extreme variations in in other sections of this chapter. Since this topography. Therefore, Chanhassen's only particular route boarders Hennepin County and reasonable opportunity for a comprehensive the City of Eden Parry it is important to develop north/south minor arterial route lies in the a consistent approach to this route from TH 7 improvement of the CSAH 101 corridor. to TH 1691TH 212. -- 5. Lake Drive/Coulter Boulevard - For the street FUTURE TRAFFIC FORECASTS to serve its intended purpose, it is essential - that it be extended to the west. The Traffic forecasts were made to determine the - Comprehensive Plan illustrates its ultimate adequacy and appropriateness of the street and extension to Hwy. 41 where it will intersect with highway system to accommodate the development 82nd Street in Chaska. that is expected to be in place by the year 2020. The forecasts were prepared based upon projected Jurisdictional Continuity population, households and employment data developed by the City of Chanhassen in Chanhassen contains a number of roads which conjunction with the Metropolitan Council. The pass through the community and into other population, household. and employment information municipalities. Because these routes fall under a was distributed throughout the City to a refined - variety of jurisdictions, continuity problems can network of Traffic Assignment Zones (TAZ). The occur. Routes of particular interest to Chanhassen TAZ information is contained in Appendix B. The include the following: analysis assumed improvements to regional - facilities only if they were programmed. Other local 1. CSAH 17 - Within the city, this route has improvements were assumed if they have been adequate right-of-way, sight distance, grades included in previous transportation plans and were and setbacks to maintain a 45 to 50 mile per part of the arterial system. These system hour speed limit. North of Chanhassen, improvements are listed as follows: however, this road takes a different form as it enters Shorewood and Excelsior. In • TH 5: Four lanes extension out to TH 41. - Shorewood, Carver County 17 becomes Hennepin County 82. Tight setbacks, poor • CSAH 18 : Completion of segment between TH sight distances, individual driveway accesses 41 and CSAH 11 in Victoria and reduced speeds exist in this area. As a result, the effectiveness of CSAH 17 as a • 78th Avenue: Completion of north frontage northern access to TH 7 is diminished once it roads along TH 5 crosses Chanhassen's border. • CSAH 17: Extension of Powers Boulevard south to Pioneer Trail 10 COMPREHENSIVE PLAN UPDATE 1998 The resulting traffic projections are shown in Figure • If TH 212 is not constructed by 2020 capacity 5. The forecasts are based on a capacity improvements are needed on the following — restrained network. The forecasting process is facilities: described in Appendix B. TH 41 4 lanes between TH 7 and TH 169 TH 5 6 lanes east of Powers Boulevard 2,.. rCSAR 14 4 lanes east of TH 41 to City limits ':-.. -h-----1 1 CSAR 18 4 lanes east of TH 41 to TH 101 9 r ' r •a " CSAH 101 4 lanes TH 5 to TH 212 , ,y.--^-.,' `\ Lam ,000 Powers Blvd 4 lanes CSAH 18 to CSAH 14 r I �I 14 .t; '1 F—:: CSAH 17 4 lanes south of CSAH 18 to TH 212 .rr.. ,a000 10 4t _ 1229, An alternative was analyzed that assumed new 21•� : I_> e. ,: .� TH 212 would be constructed prior to the year — -." M* !_zr� csiyili�:°_ - ° 2020. Constructing TH 212 would result in less oma. - 1.. traffic diverting to local streets. In addition, TH —, 212 would result in a significant operational .,...- _. 500°z �- benefits to TH 5 (Chanhassen's key — _ _.,_7 ,v,,,! r\ transportation facility). If TH 212 is constructed "�" ... by 2020 capacity improvements should still be «." '. ' considered on the following facilities: o ,> I •/ —% ( +.� TH 41 4 lanes between TH 7 and TH 169 -�\ � CSAH 18 4 lanes east of TH 41 to TH 101 - i CSAH 14 4 lanes east of CSAH 17 to City limits 0 iNTEFtCHANGES � e � i CSAH 101 4 lanes TH 5 to CSAH 14 .-= .w. Powers Blvd 4 lanes south of CSAH 18 to CSAH 14 -- l>. .„,:>--N,!.••• �� _ / � T ter-• _ N, C P6- Scu�c•.Assumes New TH 212 K CaKttune>by 2020 „�/ _�� _ ' '^ `� } '. tea ; FIGURE r1 ,,,„_-...0, Pli2020 FORCAST TRAFFIC VOLUMES �' " � >11F w o'2n. CITY OF CHANHASSEN e: Y"',V .. ..!)` ' 6-•- ,,E_ rte �.. ice. Hyl i d"� — !! '�f L• yr,` • — The level of congestion of the future highway n , L= - °t $; system depends in large measure on both the k '_ I%L- capacity improvements undertaken and the i r ; 1,y availability of a local arterial system to complement o �,�� and relieve the regional system. The congested -� 1 . I segments are shown on Figure 6. The 2020 P forecasts suggest the following: '_--- 0 M( ..• • Regional facilities (TH 7, TH 5, TH 41 and TH . -: -- �-- — 212) currently are congested. With little or no - --, capacity improvements to these facilities, congestion will increase on these facilities. In - °°'E" '""A°ACAY°"°�`�"� _ addition, more trips will divert to local routes n _ such as CSAH 18 (Lyman Boulevard), County j' Y;, �-"� Road 117 (Galpin), CSAH 17 (Powers �. (,) Boulevard) and to other collector routes within . 1 the City. [ O FUTURE CAPACITY PROBLEMS FIGURE l_ ASSUMES NO TH 212 BY 2020 6 S.,.n o.-.,- CITY OF CHANHASSEN 11 COMPREHENSIVE PLAN UPDATE 1998 • Regional river crossing bridges (TH 41 and 3. The full development level. as defined by the CSAH 101) are congested currently and will proposed Land Use Guide Plan. should become more congested as the region incorporate the limiting effects that the expands. The development of New TH 212 is identified physical constraints have on the anticipated to attract more trips from Scott attainment of the anticipated level of County and TH 169 and the Shakopee By-pass. development. - A new regional river crossing bridge has been shown on the functional classification system 4. Compatibility should be maintained between plan in the southwestern corner of the City. the roadway system in Chanhassen and - Agencies should continue to investigate and county and regional roadway systems. preserve this corridor or identify how existing corridors could be expanded to address river 5. In developing the plan, roadway segments and _ crossing needs. intersections that cannot accommodate the anticipated vehicular travel demand should be Improvements proposed for municipal roadways are identified. under direct control of the City and will receive highest priority in the City's Transportation Functional Classification System Improvement Program. For roadways on the County system, the City will cooperate with Carver The functional classification criteria presented in - County and encourage the improvement of county Appendix A were closely followed during the roads in accordance with this plan. preparation of this plan. The intent of a functional classification system is the creation of a hierarchy - SYSTEM PLAN of roads that collects and distributes traffic from neighborhoods to the metropolitan highway system The proposed roadway system should be in as efficient a manner as possible given the _ consistent with the anticipated density and topography and other physical constraints of the distribution of land uses in the City in the year area. Places of high demand, such as employment 2020. The purpose of this section is to review the or commercial centers, should be served by existing functional classification system (Figure 7) roadways higher in the hierarchy such as arterials. and identify potential functional classification and Neighborhoods and places of low demand should other system changes that should be made to have roadways of lower classification such as accommodate the anticipated growth. The existing collectors and local streets. It is in this way that the - functional classification system is based upon the land use plan is integrated into the transportation 1996 Metropolitan Council Functional Classification plan. map with the addition of local collector streets which - were identified as part of the previous Chanhassen An important consideration in developing a Plan. functional classification system is adherence to the spacing criteria established by the Metropolitan _ Guiding Planning Principles Council (Table 5 and Appendix A). The City of Chanhassen is currently considered part of the The City of Chanhassen Transportation Plan has developing area. As a result, the city has a mixture - been developed using the following guidelines and of urban, suburban, and rural areas. It is planning principles: anticipated however, that the city will be fully developed by 2020. The ultimate roadway system 1 . The functional classification of the roadway assumes full development, but the current - system in Chanhassen should conform to the distinction between developing and rural is criteria and characteristics summarized in important in the establishment of implementation Appendix A. priorities. - 2. The plan should reflect vehicular travel - demand at full development. 12 1 ti1t111r ,; • - IT .' •. . .... • . . ...„. ...:.,:,,... .,.,.:,. .. ....-..:.-i.:.•: - •.,..?..4.-:. rShorewood Minn.."- .1:1 etonka .- �-1�1I 4711,:146.7,..-t �` ''.--�-1 �_�r 1!1 1 i v..; r-+= ;^Z :::, u :-':..z..:•.1-...'-'...'':.:. f. lit ,:....:::::::.-:, ....-•, „:„._, : _ ...__. .: : _____,1_1(1.,.,r r'r r r.r.r.r.r,_ <` t' ' ---4 ":" 1 r- ,............, 1 ..:.... • .., �j::.;:.:.....;;;:........7......:..,..:......7,...7:1"..._,,::. r•r•j•r•r•r• ^~ •� ',,i ••••••••••""r•:••••• r• , II ,� —=��(L• -.1...1........: •r L .. .—T: 1•ti•L•ti••.•ti • r n. ti' F IT .9 tib.L L t•ti•'.• �1 it •• i,+ ti•ti ••:•t r•r•r•r•r•r• \; ; 1 I '`' r•r r•r• r ,i*".•••••:::::::::::•:::::- �r�r:r::::P.r.fti { h1, f 1/ 1�h:.���ti•ti rtif�f� 1----a ti,ti,ti,ti.ti.ti. ti. ��_l� / �':�••�,•L• ti• %•%•%•%;%•%•.%'r•r r• r•r•r' r• r•r•r•••r•••. t! 'r'r'r'r //i I I"I '� r !r�{ ' IF% --; 7' y • •••••••• •• — -// �� r~r ti•ti•ti.t i r r,r,r r. r i i — 7/ e.e.e. 4 �~r:r. I S %. ,. .. .. 1 ----. ti•ti•ti•ti•ti �- 1r•1r•ti• r.. •••r•r•r•r•r• / r•r•r•r•r• /t/ �' •r•r•r f • r:••.r~r: I :PP..' cop �'7! 4. i1--- � \ ~r~f ti17 •e• II '__ .r• ii Victoria : —' __ —:/ — — _ '--,-- . --� r� �_ -(1__. I Ill -- cfrc---,-.`"- - T. `:.:.:.:.:. r yl�/ .. •. I If -- :f:rtiq.r~.I r•r•r•:•. • 'r•r I. , Y �r••. •.••• o 3 ; _; • . • / .., ir . ... : . poi lii,!..1. ' 11...t1li.q .:::.:..••• a • 'j --_--r ti. ' • lora Mot — — - ti { i :;:;. I ,..,r - . . . . .., ti �. • �;; ". 1�ti�1�'.r . AI •r•�•r•r•r•r . •r•rtirtir . Chaska' • Pioneer Tn --,. - --.\ Eden Prairie / 0 ...'.;•••••-•.:-...:....................-'..-: • . -. Z. • stir -City of Chanhassen =�r •r•r•r. Existing Functional Classification • !, /V Principal Arterial .................. Ay A-Minor Augmenter -.• --•-. _ A-Minor Reliever Shako _ . T `�/i A-Minor Expander Kill A-Minor Connector TT 9 .4::-- ,././B-Minor '• Class I Collector .. - Class 11 Collector T •li,• Proposed 1Proposed Interchange ,•To-Ti + _. .•.. .. ....- -. _ . !: :. .:.: •:. •::.. . .. . ..•::. .::. ...: .:.• ..:::: fed Figure 7 COMPREHENSIVE PLAN UPDATE 1998 Figure 7 Spacing (Miles) Metro Centers/ 13 COMPREHENSIVE PLAN UPDATE 1998 _ SUMMARY OF SPACING CRITERIA may also be constructed as multiple lane divided TABLE s-s highways. The following facilities are designated as ` principal arterials within the City of Chanhassen: Spaang(Mles) Trunk Highway 7 Metro Centers/ Full Functional Regional y Developing Rural Trunk Highway 7 serves as a key east-west route DeveClassification Business loped Areas Areas through the south central portion of Minnesota. It Areas Concentrations connects the Twin Cities Metropolitan area with cities such as Hutchinson, and Montivideo to the Prindpal Artenal - 2 3 s 6 6-12 west. It also is one of Chanhassen's major east- 12-1 1 -2 west links to the Metropolitan area. It is located in _ NinorArtenal 1/4-3/4 As neededthe northern portion of Chanhassen and provides colieaor Ira 12 1/4-314 12-1 regional access and mobility to primarily residential As needed areas. In Chanhassen, vehicle movements are generally uninhibited by signals or major street Source. Metropolitan Council intersections. To the east. however, Highway 7 passes through Minnetonka and northern Hopkins where there are more frequent signalized The proposed City of Chanhassen functional intersections and commercial development. The classification system is shown in Figure 8. The roadway carries substantial vehicular traffic and is classification system that is proposed is consistent considered congested (LOS F) during peak travel - with the preliminary changes that are being periods. Recently, a corridor study was completed proposed by Carver County in the update of their for TH 7. In Chanhassen, this study recommended transportation plan. Since the plan is still under turn lanes and minor local street closures. These _ development, there may be some further safety improvements are scheduled for the year modification of the functional classification system. 2000. The functional classification plan includes the _ following categories: Trunk Highway. 212 1 . Principal Arterials The current TH 212 is a principal arterial and 2. Minor Arterials connects small rural communities to the Twin Cities • "A" Minor Arterials Metropolitan area. In Chanhassen, TH 212 travels • "B" Minor Arterials along the bottom of the river bluff. A new location 3. Major Collector Streets of this facility has been planned for many years. -- 4. Minor Collector Streets The new facility is proposed to run diagonally 5. Local Streets through the southern portion of Chanhassen. The route is proposed to be a four lane divided facility _ Principal Arterials with controlled access. Plans call for two interchanges in Chanhassen, one at CSAH 101(old Principal arterials are the highest roadway TH 101) and the other at CSAH 17. At the present _ classification and are considered part of the time, official mapping has been completed and the metropolitan highway system. These roads are EIS has been finalized. TH 212 has right-of-way intended to connect the central business districts of preservation status as part of the Metropolitan the two central cities with each other and with other Council's regional plan. regional business concentrations in the metropolitan area. These roads also connect the New Principal Arterial River Crossing Twin Cities with important locations outside the metropolitan area. Currently there is a lack of a principal north-south arterial route in the region. This is due to physical _ Principal arterials are generally constructed as constraints such as Lake Minnetonka, and limited access freeways in the developed area, but Minnesota River bluff area as well as past travel 14 L•%• ti. ir•:•;-:•:•:•• ' . ::: L' .:•' .. Shorewood - Minnetonka tile _..,. ....„ ..1.. .. . - r'r:r~ s`' /. L.'•:1•:•:tib. '•:ti tirtirlir �1- :r.e•r.r•r•r•r•r•e.r•: , - / 'r r•r•r•r•r•r•r•r - II 7i,„_/?.. —r-- rr�)'tif;r;r{rti?ti:L: — Y` '•: ••• 1 ��L�ti�� ; YJdy� ti 1 L•L•L•L•ti•L �•4 1 7r t II"'\11.a--•J •L.L• r•r•r•r•r•r•r•r r• / `rr�� j7 r��•T ��r•r� , 'r•r•: r • • �t L•L•L L L •. L L•L� "� �ti•Ti, l� • a\+L1L, fti�tir~ •i 4 �•r•r l•tN••l•r•r•�. i -� "T d•• _ •I -----ti ,':_1",;•••.:. :::.•::.4::::::.k.•'.ti .•,.S.L.••.L. •1.•L. L! i 1�`.;ti•:.•�••%•�c -\ . • / ......-‘01,....../` • • I �--.....:.•;.•......-..!,,,.., 1 .11 7 , • li. . •. - ...,-,r.......:0- — __I/ ::?ra.:1,. V] 'i?-k.. 2_7_-. .i.P..?..-- .." ' ••• •• �..ti� ....7,..,..,...21---. j trL•v r TH-5 A -" ' J P) •I 1,,,,p.,...,._.,..:. ; 7 7 1.-1 — — r- --7- 7 ..,. =_-_ ,_ ,_ ii ii ____ ,,:-__._ _ ii......_ i_ ._, ,,-E,,,.....,,--;-_, j.,---. - r il‘ _....... L' .... • • f ::.. i l m _ f �tirf;4„..,c .• _ i: >. // 6.6...........•.....1'...1.0:.x' :,•M1. .ti.prtir 1r r~r ii ,fr.....„,...).\....7 11 , /0 Illri��Lr.r o S ti•L• • • • • 1 L•S L•L•L•Y . :......- + 1�r•r•r•r•r•r•r Chaska4 ,, r�;s••••%t .-- f —A i. Piwr•r Trl . `� Eden Prairiell 7 . ••.. . .••. :. -:, i 3 ‘\ c . .• .• . ..„ „..••••.•0•• li \'* ........ ................, • City of Chanhassen . .. r I •Future Functional Classification Principal Arterial ...•.;.::;:; :.. ;" `` -r A-Minor Augmenter . A-Minor Reliever • ,4 Shakopee` • A-Minor Expander NA-Minor Connector : B-Minor • .,r''i•I T Class I Collector '4 ter'''' `� ' I Class II Collector �~' -0 Proposed Interchange • �,T T SRF • -- . ....... Figure ure 8 COMPREHENSIVE PLAN UPDATE 1998 Figure 8 Future Functional Classification —`. 15 COMPREHENSIVE PLAN UPDATE 1998 _ patterns favoring east-west travel. However, as the • Connectors — Roads that would provide good. — urban area continues to grow. north-south travel safe connections to and among town centers in demand is anticipated to increase. The spacing the transitional and rural areas in the area. from the Bloomington Ferry Bridge (TH 169) to TH • Augmenters — Roadways that augment principal 41 is approximately 9 miles. This is inconsistent arterials within the interstate ring or beltway. — with the functional classification guidelines. A north-south regional river crossing has been shown To the extent possible, "A" minor arterials are the previously on the Metropolitan Council's functional most continuous and form a grid network over the classification system. This route is located in entire city: however, topographic constraints and — southwestern corner of Chanhassen and connects the location of existing highways and existing land new TH 212 to the Shakopee By-pass. This route uses can result in deviations from the spacing is intended to accommodate more of the regional guidelines. Nevertheless, continuity and _ trips between TH 212 and TH 169. connectivity among the "A" minor arterials and the principal arterials allows the arterial network to This route was designated a principal arterial route provide important mobility functions throughout the _ in lieu of designating the current alignment of TH 41 city. a principal arterial route. This was primarily done because TH 41 goes through downtown Chaska • In Chanhassen, the current spacing of "A" Minor and has numerous access points and limited ability arterials is approximately 3 miles (spacing between — for capacity improvements. The existing river TH 101 and TH 41). The desirable spacing for "A" crossings on TH 41 and TH 169 are shown to be at minor arterials is considered to be 1/2 to 1 miles for capacity based on traffic forecasting work done for fully developed areas. Because Chanhassen is — the Carver County Transportation Plan. Therefore, anticipated to be fully developed by the year 2020, expansion of existing river crossings or an additional "A" minor arterials should be designated additional regional river crossing appears to be to maintain mobility throughout the City. The "A" _ — needed to address regional growth. Minor Arterials that are recommended in Chanhassen include the following: Minor Arterials Trunk Highway 5 — Arboretum Boulevard Minor arterials are designed to emphasize mobility over land access. serving to connect cities with Trunk Highway 5 is the most important existing adjacent communities and the metropolitan highway roadway in Chanhassen functioning as the City's system. Major business concentrations and other transportation backbone. In the early 1970's TH 5 important traffic generators are often located on was considered a principal arterial route. This minor arterials. In the metropolitan area, minor designation has changed over time because of the arterials are divided into two classes "A" Minor close proximity of TH 7 and lack of continuity west Arterials and "B" Minor Arterials. of Carver County. Currently. TH 5 serves as the major link for Chanhassen to the metropolitan area. 1. "A" Minor Arterials In addition, TH 5 provides regional access to a large number of businesses and industrial The Metropolitan Council has identified minor properties in the area. The concentration of these _ arterials that are of regional importance because large employers results in some "reverse they relieve, expand, or complement the principal commuting" patterns as well as destinations for arterial system. These roads have been labeled many trips coming in to Chanhassen from the west. "A" minor arterials and have been categorized into Even though this route is designated as a minor four types: arterial, it provides many functions similar to TH 7 and TH 212 which are principal arterial routes. As a • Relievers — Minor arterials that provide direct result, it is recommended that the city continue to -' relief for metropolitan highway traffic. support improvement and access management • Expanders — Routes that provide a way to make strategies that would maintain the mobility of this connections between developing areas outside route. the 1-494, 1-694 interstate ring. 16 COMPREHENSIVE PLAN UPDATE 1998 Within Chanhassen, the flow of traffic along done a good job in protecting the mobility of this Highway 5 is interrupted by traffic signals at TH 41, corridor by providing limited access and proper CSAH 19 (Galpin Boulevard), CSAH 17 (Powers development setbacks. With other north-south Boulevard), T. H. 101 (Market Boulevard), Great corridors being limited. the volumes on this Plains Boulevard. Dakota Avenue, and Dell Road. corridor are anticipated to increase as additional Additional signals may be installed at Century development occurs. . This will continue to cause Boulevard and Audubon Road. There are no delays and intersection problems throughout the significant commercial or residential uses accessing corridor. These problems are anticipated to be directly onto Highway 5. significantly worse at the intersection of TH 5 and TH 41. Eastbound traffic on TH 5 typically connects with either 1-494 or TH 169/Hennepin County 62. From CSAH 101 (old TH 101) - Great Plains the Chanhassen border to 1-494. Highway 5 Boulevard contains a number of signalized intersections: Eden Prairie Road, Wallace Road. Mitchell Road, This designation is consistent with the Metropolitan and Prairie Center Drive. These signalized Council's Functional Classification Plan and - intersections combined with higher traffic volumes Hennepin County's designation. This designation is in Eden Prairie, contribute to significant traffic consistent with the spacing guidelines for delays during peak hours. developing areas. The current spacing of -A" minor arterial routes west of 1-494 are between 1 ands 1/2 In 1987. MnDOT began a series of improvements miles. Other factors considered include: which would significantly enhance the function of Highway 5. The first stage improvements resulted • in the construction of four lanes from Wallace Road The projected year 2020 daily volumes are at to Prairie Center Drive in Eden Prairie. The second the upper limit or exceed the recommended phase constructed a four lane divided roadway guidelines for volumes carried by a collector. from west of CSAH 4 to Wallace Road. The third phase of the project completed in 1993 constructed • The roadway connects principal and other a four lane roadway from west of CSAH 17 in minor arterial routes thereby providing an - Chanhassen to west of CSAH 4 in Eden Prairie. important mobility function for the region. Included in the project was the replacement of the Chicago, Milwaukee, St. Paul & Pacific Railroad • The City has historically limited direct access - bridge south of the Chanhassen CBD. The next to CSAH 101 and will continue to do so. phase of improvements is from west of CSAH 17 to TH 41. This improvement is scheduled for 2000 Highway 169/212 - Flying Cloud Drive _ and 2001 and includes the construction of a four lane divided roadway and the north TH 5 Access Assuming new TH 212 is eventually constructed, Boulevard (west 78" Street).. Chanhassen strongly old TH 212 would be downgraded from a principal advocates the continued extension of the TH 5 arterial route to an "A" minor arterial. TH 169/212 improvements to the western border of the is a two lane undivided highway with limited community. access control on the segment within Chanhassen; however, the river bluff substantial - Trunk Highway 41 — Hazeltine Boulevard restricts ability to access this route. The route would continue to link Chaska and CSAH 101 Another "A" minor arterial that has many principal river crossing with Twin Cities Metropolitan area. - arterial characteristics is TH 41. This route is The route would fits the spacing guidelines for "A" located in western Chanhassen and is the only minor arterial routes and provides east-west major north-south river crossing west of the traffic flow below the bluff. Bloomington Ferry Bridge (9 miles to the east) that connects TH 169, TH 212, TH 5 and TH 7. As a CSAH 17 — Powers Boulevard result, this route will continue to be an important _ link serving Carver County and the City of County State Aid Highway 17 is currently classified Chanhassen. Chanhassen and Chaska have as a "B" minor arterial on the Metropolitan Council's 17 COMPREHENSIVE PLAN UPDATE 1998 - Functional Classification Plan. It is recommended south connection between old TH 212 and TH 5. It - that this route be upgraded to an A' minor arterial is recommended that this route be upgraded to an based on the spacing with other similar north-south "A" minor arterial based on the spacing with other routes and the connections that it provides to other similar north-south routes and the connections that arterial facilities. It connects facilities such as CSAH it provides to other arterial facilities. It connects 14 (Pioneer Trail). new TH 212 (future facilities such as old TH 212, CSAH 14 (Pioneer - interchange), TH 5. and TH 7. The spacing of this Trail), and TH 5. The spacing of this roadway with roadway with TH 101 to the east is approximately TH 101 to the east is approximately one mile; one mile; however, there are physical barriers however, there are physical barriers (lakes and - (lakes and wetlands) that limit the connections wetlands) that limit the connections between these between these routes. The spacing of this route routes. The spacing of this route with TH 41 to the with TH 41 to the west is approximately two miles. west is approximately two miles. As the City of _ As the City of Chanhassen develops, this facility will Chanhassen develops, this facility will provide provide mobility for north-south traffic flow to mobility for north-south traffic flow to important important destinations within the city as well as the destinations within the city as well as the regional - regional transportation system. It is recognized that transportation system. the character of CSAH 17 does change as it extends north into Hennepin County (CSAH 82). 2. "B" Minor Arterials The roadway becomes narrower and setbacks are limited. The Metropolitan Council defines considers all minor arterials other than "A" minor arterials as "B' CSAH 19 — Galpin Boulevard minor arterials. These roadways also serve a - citywide function. Medium to long distance trips use County State Aid Highway 19 is currently classified the "B" minor arterial system. When combined with as a "B" minor arterial on the Metropolitan Council's the "A" minor arterial system, most places in the city Functional Classification Plan. This route is looked are within a mile of such a roadway. There is one at in combination with the southern portion of CSAH route in the City of Chanhassen that is proposed as 17 (portion south of CSAH 18). Together these "B" minor arterial. This route is described as - routes form a north-south connection between old follows: TH 212 and TH 5. It is recommended that this route be upgraded to an "A" minor arterial based on the CSAH 18— Lyman Boulevard - spacing with other similar north-south routes and the connections that it provides to other arterial Lyman Boulevard is currently designated as a "B' facilities. It connects facilities such as old TH 212, minor arterial. It is an east-west route that parallels CSAH 14 (Pioneer Trail). and TH 5. The spacing of TH 5 one to 1.5 miles to the south. It currently - this roadway with TH 101 to the east is connects TH 41, CSAH 17 and CSAH 101 ; however approximately one mile; however, there are physical an extension is planned to the west of TH 41 that barriers (lakes and wetlands) that limit the would follow the 82nd Street corridor (adjacent to connections between these routes. The spacing of Chanhassen City limits). The spacing guidelines this route with TH 41 to the west is approximately are consistent with designation of an "A" minor two miles. As the City of Chanhassen develops, arterial for this route. However, we have chosen to - this facility will provide mobility for north-south traffic leave the designation of Lyman Boulevard as a "B" flow to important destinations within the city as well minor arterial because it lacks of continuity east of as the regional transportation system. CSAH 101, it is in close proximity to the arboretum and there are limited setbacks in the City of - CSAH 17 — Audubon Road Victoria. County State Aid Highway 17 is currently classified The number of lanes on arterial routes should be - as a "B" minor arterial on the Metropolitan Council's based on the projected volumes routes are likely to Functional Classification Plan. This route is looked be constructed either as four-lane undivided roads at in combination with CSAH 19 (portion north of or as three-lane roadways where there is CSAH 18) Together these routes form a north- insufficient right-of-way when the system is complete. 18 COMPREHENSIVE PLAN UPDATE 1998 Major Collectors • Kerber Boulevard Major collectors are designed to serve shorter trips that occur entirely within the city and to provide • Market Boulevard access from neighborhoods to the arterial system. These roads supplement the arterial system in the • Century Boulevard sense that they emphasize mobility over land access. but they are expected, because of their • Bluff Creek Drive locations. to carry less traffic than arterial roads. _ • West 78th Street The following roadways are recommended as Major Collectors in Chanhassen. The ultimate roadway system is based upon the functional classification presented above. It reflects • Minnewashta Parkway (This street serves as full development of the City according to the land the only north/south route between TH 5 and use plan and socioeconomic forecasts presented TH 7, west of Lake Minnewashta. It is also earlier. The roadway cross-section identified for located such that it likely serves some each classification would be expected to be in place through trips from outside the City along TH at the time full development is achieved. 5. traveling to the north to TH 7, as well as locally generated traffic along its route. This PLANNED AND PROGRAMMED IMPROVEMENTS area has undergone a fairly significant amount of development but there is In 1987, the City commissioned a traffic study _ considerably more development potential that entitled "Year 2005 Land Use and Transportation is likely to be realized over the next decade.) Study. The study was to develop a transportation system plan for the Chanhassen CBD as well as • Galpin Boulevard (CSAH 117) north of TH 5 major routes in the northern portion of the City. The Plan represented a major, City-sponsored • Lake Drive — Lake Drive is being developed effort to develop a comprehensive approach to to serve two functions. These include local improving our transportation system. The Year access south of TH 5 and a parallel collector 2005 study made a series of recommendations, to TH 5 capable of carrying off-loaded local most of which have since been implemented or are trips of short to medium length. The City programmed: undertook a joint project with MnDOT and the City of Eden Prairie to extend 1. Designation of an interchange at Highway 101 Lake Drive east to the City line where it at TH 212 to secure access to downtown merges with the signalized intersection Chanhassen. The interchange has been at TH 5 and Dell Road. incorporated into current plans and official maps for the new highway. • Pleasant View Road— Pleasant View Road serves as the only east/west connection 2. Realignment of CSAH 101 with intersection between CSAH 17 and CSAH 101 in northern improvements at TH 5. The City undertook Chanhassen. the realignment of the Highway 101/Highway 5/West 78th Street intersection under a • Lake Lucy Road — Lake Lucy Road serves as self-financed program and realigned Highway the only east west connector between CSAH 101 south of Highway 5 to the Villages on the _ 17 and TH 41 in northern Chanhassen. Ponds and Rosemount facility. The location of CSAH 101 has been modified from the Year • Coulter Boulevard — Coulter Boulevard is 2005 study, being shifted from Dakota Avenue _ being developed to serve two functions. to a location to the west that aligns with new These include local access south of TH 5 and Market Boulevard. This alignment was a parallel collector to TH 5 capable of carrying selected based upon the "Highway 101/5 off-loaded local trips of short to medium length. 19 COMPREHENSIVE PLAN UPDATE 1998 Preliminary Alignment and Land Use Corridor The following major improvements are components _ Study" completed by the City in 1989. Future of the recommended and planned transportation - extensions of new Highway 101 south to TH system: 212 will occur as needed to serve new development. Full improvement of the Trunk Highway 5 - As was referenced previously in corridor may not occur until new TH 212 is this report. TH 5 is scheduled to be improved by the — constructed. Improvements south of TH 5 Minnesota Department of Transportation. By are under discussion with Carver County. but approximately 2002. TH 5 will exist as a four lane construction of these improvements depend road from TH 41 in Chanhassen to 1-494 in Eden — on MNDOT turn-back program funding or Prairie. This improvement, which will include turn other funding sources. lanes, will help mitigate peak hour traffic congestion in Chanhassen and Eden Prairie. The City will _ 3. Realignment of the West 78th Street/County continue to work to get TH 5 improved to Road 17 intersection to provide adequate Chanhassen's western border. The current Carver stacking distance from TH 5. County Transportation Plan indicates a need to 4 _ lane Hwy. 5 west towards Waconia to accommodate 4. Creation of a new CBD access to Highway 5 traffic flows. to accommodate development and to reduce congestion at other intersections was Crosstown Highway/Townline Road - This — completed by the City in 1989 with the improvement entailed the extension of Townline construction of Market Boulevard. With the Road from 1-494 west to CSAH 101 at the signalized intersection at TH 5, Market Chanhassen-Eden Prairie-Minnetonka border. The Boulevard will have continuity with realigned extension of this route, completed in 1998. will have Highway 101. a major impact on CSAH 101 which serves as the common Chanhassen;Eden Prairie boundary north _ ROADWAY PLAN of TH 5. Traffic on Chanhassen's roadway system will State Trunk Highway 212 - Construction of TH _ continue to increase due to new commercial, 212 along a new alignment has been under residential and industrial development and changes consideration since the early 1950's. Cities along in socio-economic conditions. The impact of added the corridor have cooperated in providing funding traffic will be more evident on the primarily the to prepare an environmental impact statement (EIS) arterial and collector routes. However, failure to for the project and have officially mapped the address capacity issues on major routes will result right-of-way within the corridor. Plans call for TH in more traffic diverting to local streets. This can 212 to be built as a four lane freeway facility. At result in safety. speed and other undesirable present, the route will be constructed to CSAH 4 impacts to collector routes. over the next two years and up to Lyman Boulevard in Chanhassen during the next 20 years. The _ In order to ensure that traffic concerns are project is only partially funded. addressed thoroughly and comprehensively, the transportation chapter of the Chanhassen Dell Road/West 184th Avenue - Dell Road in Comprehensive Plan contains a planned and Eden Prairie parallels CSAH 101 and is classified recommended roadway system for the year 2020 by the City of Eden Prairie as a collector roadway (Figure 9). This system is the result of both current north to TH 5 and a minor arterial south of TH 5. It and past planning efforts including the 1980 and provides a connection from Townline Road on the 1991 Comprehensive Plans, the Year 2005 Land north to Pioneer Trail on the south. Depending Use and Transportation Study, the Highway 101/5 upon its design and access to the State Trunk Preliminary Alignment and Land Use Corridor Highway system, Dell Road could play a greater or — Study, the Highway 5 Corridor Land Use Design lesser traffic role than envisioned by the City of Study, the 1990 Eastern Carver County Eden Prairie. The Dell Road/TH 5 intersection was Transportation Study (ECCTS), and the 1998 signalized as part of the TH 5 improvement project. Carver County Transportation Study. 20 COMPREHENSIVE PLAN UPDATE 1998 corridor, the City recognized that since the 1" ., ' e I realignment will involve total reconstruction, a .` � ` ° . - ' ,4 1 unique opportunity exists to create CSAH 101 as an — .� J a attractive approach to the community. The Inn °` 'fi• -`' interchange of TH 212 and CSAH 101 will provide ,A. 1` � I ti ��e. `. downtown Chanhassen and the industrial area with _ a new entrance. In order to maximize visual and r....-- -- functional concerns, CSAH 101 is planned for •'I'4� reconstruction as a boulevard/parkway with a — '. �� ,:: '�J landscaped median area from new TH 212 to TH 5. - A. alignment of CSAH 101 as it approaches TH 5 `•i'' r� was relocated to the west to intersect Market Boulevard. TH 5 will serve as a brief east/west link ,*! ? for CSAH 101 between Market Boulevard and Dakota Avenue where the route will continue to the I-*: .;`„` 7-43 h, north. Highway 101 north of TH 5 and south of TH — 'NTERCi1ANOES .* 212 are clearly in need of improvements. These - TWO LANE FACILITIES •• s` improvements are justified today based on capacity TWO LANE FACIL'TIESInGn-eastmy, • and safety concerns. The 1998 Carver County - 4 LANE ARTERIALS • f ' — 4-LANEARTERLA.SIron�gtRpl -- -_ .1 Plan projects over 20,000 trips per day on the .- A_ANE FREEWAYIncn••i3bq; • segment north of TH 5 and -- on the segment south ® of TH 5. - West 78th Street (TH 41 To CSAH 17) - A frontage ���,� RECOMMEDEDSYSTEM FIGURE road along the north side of Highway 5 between M _ ASSUMES CONSTRUCTION OF TH 2T2 BY 2020 9 CSAH 17 and TH 41 is planned to serve short term SI r.N'O D9,., C-,OF CHANn:SSEN and eventually long term development in the area. In 1997 the frontage road was constructed to Lake Lake Drive - Lake Drive is a planned east/west Ann Park and the access into Lake Ann Park at TH — collector street located south of TH 5. This route 5 was closed. The frontage road will also provide will serve as an important collector for direct access to the residential and neighborhood Chanhassen's eastern industrial area. The last commercial uses planned along the north side of _ segment of Lake Drive still to be completed will TH 5. connect Audubon Road to Powers Boulevard (CSAH 17). The alignment of this route south of Trunk Highway 7 (North Minnewashta Area) - A _ TH 5 separates planned industrial uses from study of the entire TH 7 corridor was completed in planned residential uses. late 1986. Various alternatives were identified to improve the corridor along the north side of Lake County State Aid Highway 101 - Planning efforts Minnewashta. The alternatives involved a variety of since 1980 have consistently identified the need street closures and re-routings in the residential for improvements to CSAH 101. A design study areas east of Minnewashta Parkway. The goal of for the roadway to Townline Road. Town Line the recommendations is to reduce the total number — Road is scheduled to be completed in 1998. of intersections along the route thereby improving Planned improvements north of TH 5 consist traffic flow. At the present time, Chanhassen and primarily of reconstruction and realignment of the the other communities along the corridor are _ route north of the intersection of CSAH 101 and working with MnDOT in implementing the West 78th Street to effectuate better traffic flow. recommendations as funding becomes available, which is currently programmed for 2000 and 2001. South of TH 5, major improvements are needed. The 1980 and 1991 Comprehensive Plans and the Trunk Highway 41 - Historically. the Minnesota 2005 Land Use and Transportation Study called for Department of Transportation has had an interest the total realignment of CSAH 101 between TH 5 in realigning and extending TH 41 south to and _ and Lyman Boulevard. In reviewing the CSAH 101 across the Minnesota River. To date, however, 21 COMPREHENSIVE PLAN UPDATE 1998 there are no plans to actually implement a new road As Chanhassen continues to develop. -� along this alignment. This alignment is identified on transportation conflicts and inconsistencies will _ the Carver County Transportation Plan as a "study become evident. These situations. unlike planning and/or reserve right-of-way" corridor. It is not for major routes, are not predictable since they currently identified on Chanhassen's transportation result from the merging of existing and new land — system. however. it can be added if the County or use patterns. The Comprehensive Plan can be a State feel that the realignment is still justified. If useful tool in assisting the City in resolving these appropriate, the City of Chanhassen will work with local access situations. It is the city's policy to Carver County and the City of Chaska to further require interconnections between neighborhoods to — define the need for the realignment of TH 41 foster a sense of community, to improve safety, and including the possibility of a new river crossing. to provide convenient access for residents. However, if the current alignment is retained. TH 41 — would need to be upgraded to a four lane cross Often, during the subdivision review process, the section from TH 5 south into Chaska. In addition. need for future extension of local streets becomes the vertical alignment of the south approach to T. H. apparent. As a result, access concepts are — 5 must be reduced to improve the safety of this developed to assist in creating an acceptable heavily used intersection. configuration for the plat and as a guide for the future development of adjoining parcels. It is the _ County State Aid Highway 101/Proposed TH City's intent that the Comprehensive Plan serve as 212 and CSAH 17/Proposed TH 212 an implementation tool by providing a means by Interchanges —_Plans for new TH 212 call for an which to record these access plans, legitimizing interchange at CSAH 101 in Chanhassen and them by nature of the fact that they are approved construction of an interchange at County Road 17 by the City Council prior to recording. It also will and TH 212. provide a useful means of providing information to residents and developers seeking information or — East/West Collector: South of TH 5 — At the future development potential. These concept plans present time. the Chanhassen transportation are illustrated below. Additional concept plans will system does not accommodate east/west be added to this document over time as they are __ movements, south of TH 5 between Audubon developed. Road and TH 41 . A collector roadway system in this area is needed to provide access to property Tanadoona Drive-Dogwood Road/Crimson Bay and to discourage local trips from using TH 5. Road - At the present time, Crimson Bay Road Coulter Boulevard will be completed from Audubon does not connect to Dogwood Road to Tanadoona Road west of Galpin in 1998. This project will Drive. Correspondingly, both of these complete the south TH 5 frontage road. neighborhoods have only one means of egress/ - ingress. A future street connection in this area is New Regional River Crossing: South of New needed to alleviate existing access problems. TH 212 to TH 169 — Currently, TH 41 and CSAH 101 bridges serve the river crossing needs Carver Beach Road Conditions - Chanhassen's for the region. both these routes are anticipated Carver Beach neighborhood was one of the first to be significantly over capacity. A regional river residential developments on Lotus Lake. This area crossing has been identified on past plans, consists of smaller lots and narrow rights-of-way. however, a limited amount of work has begun to Drainage problems occur due to topography and a preserve a corridor for this facility. The City lack of storm sewer facilities in some portions of the _ should work with adjacent communities, Mn/DOT area. Improvement of existing conditions can only and the Metropolitan Council to determine occur in a comprehensive manner involving the potential alternatives to address capacity needs in reconstruction of both streets and utility systems. the region. Because of development constraints, typical street ` standards will not be applicable in this area. OTHER RECOMMENDED LOCAL STREET IMPROVEMENTS Nez Perce/Pleasant View Road Connection - During review of the Vineland Forest plat. it was 22 COMPREHENSIVE PLAN UPDATE 1998 evident that a connection between Nez Perce/ ALTERNATIVE MODES Lake Lucy Road and Pleasant View Road was warranted since there was no north/south Transit connection between County Road 17 and Lotus Lake. Improved access is needed for local trips Transit needs in Chanhassen were identified in the and to ensure the adequate provision of Metropolitan Council's Transit Redesign (1996). - emergency services. At the same time, there were The findings and recommendations from this study concerns voiced regarding the introduction of is summarized below. additional trips onto Pleasant View Road since the street already suffers from capacity and design Metropolitan Council's Transit Redesign constraints. Therefore, it was determined that the Pleasant View Road intersection should be The Transit Redesign serves as a regional policy located as far west as possible at the Peaceful framework for the promotion of transit throughout Lane intersection. the Twin Cities Metropolitan Area. Within this context, four transit market areas plus localized Melody Hill connection between Chaska Road and pockets were defined based on population and Murray Hill Road. This connection would provide employment densities. Chanhassen has been an alternate means of access to the Minnetonka identified with Area IV, indicating a population Middle School. In addition. it would provide local density less than 5 persons per acre. As a result. - access for residents to the neighborhood transit in Chanhassen should emphasize 1) Small commercial center at TH 7 and TH 41. Currently. bus or Dial-A-Ride service providing county or rural residents must drive in to Shorewood and loop circulation, and 2) commuter bus service tied to _ back on Chaska Road to reach these areas. This major park-and-ride lots to create travel volume. In connection would provide only local access in this addition, the Transit Redesign Study identified area. since the completion of Lake Lucy Road to localized pocket that have higher population and the south will serve as the primary east/west job densities than those for Area IV. Chanhassen -- connection for northern Chanhassen between has one pocket located at the TH 5/TH 41 Galpin Boulevard and TH 41. intersection. Suggested service in pockets is similar to Area IV except that the commuter bus - Timberwood Drive/Stone Creek Court. The service may have localized service in addition to neighborhoods of Timberwood Estates and Stone linking with major park-and-ride lots. Creek are separated by approximately 30 feet of - unfinished roads. This connection would permit Although private cars comprise the most commonly the residents of Timberwood Estates to access the used mode of transportation for Chanhassen Bluff Creek trail system. In addition, this residents, mass transit serves as an important _ connection could provide a secondary access for alternative to automobile use and serves as one leg Timberwood Estates for residents and emergency of a multi-model transportation strategy for the vehicles. community. Two forms of mass transit, buses and light rail/commuter rail, are specific components of Kiowa Trail/Springfield Drive. Back-to-back cul-de- this plan. Plans for these services are outlined as sacs shall be provided at the Kiowa Trail follows: connection. The pavement for the northern cul-de- sac shall be installed to the project property line. A Buses breakaway barricade shall be installed to prohibit through traffic on Kiowa Trail. The cul-de-sac shall In late 1986. Chanhassen joined the cities of Eden - be temporary until either area residents petition the Prairie and Chaska in the creation of the Southwest City to open the connection or Highway 212 is Area Transit Commission, operated under a joint constructed at which time traffic patterns will be powers agreement between the communities, to - changed. provide transit service known as the Southwest Metro. Chanhassen's contract with Chaska and Eden Prairie is a joint powers agreement renewable on an annual basis. The City will continue to 23 COMPREHENSIVE PLAN UPDATE 1998 ` monitor the effectiveness of the Southwest Metro opportunities. For example, group rides are program in providing cost effective transit service to available for a variety of business, schools, the City of Chanhassen. organization, and others. Wherever possible, Southwest Metro provides buses for little or not There are several services provided by Southwest charge for community purposes in Chanhassen and — Metro: other service communities. Express Service - This service provides express In addition, the report lists potential new services service for passengers working in downtown Southwest Metro may consider and proposes new — Minneapolis. Riders are picked up at the park and policy agendas to promote Travel Demand ride lot in Chanhassen and driven to downtown Management (TDM) strategies. A copy of this Minneapolis without stopping. At the end of the report is provided as an appendix to this Plan. — workday, the service is reversed taking passengers back to Chanhassen in an expressed manner. Lastly, the City supports investigation of TDM strategies to reduce trip levels on area roads. Tele-bus - Residents are able to make reservations The City will be advocating the development of a for dial-a-ride bus service which provides for multi-community, multi-county partnership with the address to address transit within Chanhassen, business community to promote these strategies. Chaska. and Eden Prairie. Individuals may also _. have standing reservations for this service, Light Rail Transit (LRT)/Commuter Rail providing transit service for their work needs, service needs. and to provide transit for children Light rail transit is a mode of transportation that is — after school. currently being considered for construction in the Twin Cities Metropolitan Area. In 1987, Hennepin Circulator- Circulator bus service within the three County received authorization from the State — communities served by Southwest Metro was Legislature to prepare a Comprehensive LRT established in 1997. This service connects riders System Plan for Hennepin County. The Hennepin to major destination points in the three cities. This County Board intends to implement light rail transit _ service provides direct connections for in the county. Toward that end, the County Chanhassen residents to Chaska and Eden Prairie. established the Hennepin County Regional Railroad Authority to administer, at least, the initial Reverse Commute - To serve business in the area, stage of the system. Hennepin County owns — the local Chambers of Commerce created a railroad right-of-way from downtown Minneapolis Reverse Commute Task Force which in conjunction to Victoria. Other counties in the metropolitan with other agencies helps to match employees in area have followed Hennepin County's lead and Minneapolis with businesses in Chanhassen. have also established railroad authorities. These routes start in Minneapolis and bring passengers to job sites in Chanhassen. Starting Early system planning has identified two routes, with only five passengers in 1992, the program has one or both of which may ultimately be extended grown to serve approximately 400 - 450 into Chanhassen (Figure 10). Of the two, the passengers and 45 - 50 employers. The City's northern alignment has received the highest a rapid growth as an employment concentration priority. Although both alignments provide potential warrants service to facilitate work trips. benefits to Chanhassen residents, neither significantly impacts the city in terms of land use Special Routes - Southwest Metro provides special and direct accessibility. There are no proposed service routes to regional locations including station sites within Chanhassen's borders. Southdale, the Mall of America, and the Minneapolis-St. Paul International Airport. The northern alignment which has an identified - station in Excelsior provides the most benefit to Other Services - Because the agencies mission is Chanhassen since the City's population resides __ to meet the transit needs of the community, primarily in the northern half of the community. The Southwest Metro provides a variety of other transit southern alignment travels along the bluff area in 24 COMPREHENSIVE PLAN UPDATE 1998 southern Chanhassen which is presently outside of the MUSA line area and not likely to see urban — development within the time frame of this plan. As 11-,• 127_,-(53-113: r -+-`w72 — a result, it is viewed as somewhat of a commuting • ‘.;?a i <<° % fe route from Chaska to downtown Minneapolis and � ( ~ n�� y: various stations along the route. -` " 3 ii L _'? If the northern route is eventually implemented, i •.••% Chanhassen residents wishing to use the system f'-•- will have to rely on bus transit connections to .. .• Excelsior (if available) or will require park and ride ----/' a '`'jo• -.. 41 sites in the vicinity of the station. The City will s rte, continue to monitor the implementation of light rail and station plans to assess their adequacy and r S a their impact on existing private patterns and bus I - ' transit systems. �• ,`— Commuter Rail - The city supports the continuing -, • investigation of Commuter Rail as a transportation . ' � — alternative for the community, the region, and the NORTH ROUE •. �T � ' MIDDLE ROUTE -'v* state. The Twin City & Western Line, which runs ! ---SOUTH ROUTE #. e-' through the heart of Chanhassen is currently under j it _ consideration as a possible route. •• ,------ -- 10l Park-and-Ride ( URE _ RAIL/COMMUTER RAIL CORRIDORS FIGURE) O Chanhassen currently maintains a park-and ride- ...�a CITU OF CHANHASSEN ) stop on Market Boulevard. Eventually, the city would like to relocate the stop to a location that provides • Rail Corridors offer employees flexible work — improved utilization and permanent parking facilities. hours and set a goal to reduce peak hour trips The City will also work with Southwest Metro to by 10 percent; and locate park and ride stops at the future Hwy. 101/ — Hwy. 212 interchange and potentially at the east end • participate in a Travel Demand Management of the Central Business District. Organization (TMO) specifically set up for major employers. This group will consider TDM Travel Demand Management measures that require cooperation among several employers such as, but not limited to: Travel Demand Management (TDM) programs will also provide an opportunity to reduce travel demand - staggered start times on the regional highway system. The employment - van-pools concentrations anticipated for the area, particularly in - trip reduction goals the office complexes, provide the City with a - transit subsidies — tremendous opportunity to implement TDM programs. As part of its standard approval process, the City will In addition, every employer, regardless of size, will work with new employers locating in the study area to be required to provide a convenient carpool/ — ensure that employers will: vanpool drop-off site that does not interfere with other traffic. This drop-off site will be consistent • promote carpooling by providing information on with applicable ADA requirements. The City may carpooling and vanpooling to employees on a allow a group of employers to provide a shared regular basis, providing preferential parking drop-off site as long as the site is accessible to all Y and guaranteed-ride home; participating employers. • encourage employees to participate in It will be the goal of the City to reduce peak hour Minnesota Rideshare's ride-matching program; trip generation to and from the study area by 10 25 COMPREHENSIVE PLAN UPDATE 1998 _ percent through the use of a combination of transit require that these pedestrian linkages be included — service and TDM programs. as part of the development. _ RELATIONSHIP OF THE TRANSPORTATION PLAN Airports TO THE METROPOLITAN SYSTEM There are no existing or planned airports within the In 1997 the Metropolitan Council issued a Systems City of Chanhassen. Commercial air service is Information Statement to the City of Chanhassen. available at Twin Cities International Airport and The City was encouraged to address issues general aviation is available at Flying Cloud Airport identified in the Statement, and to ensure that — in Eden Prairie. Flying Cloud Airport is planning in Chanhassen was consistent with the approximately 4 miles east of the City of Metropolitan Council's newly revised Transportation Chanhassen. Policy Plan. This section is intended to identify how — the revisions to the City's Transportation Plan Despite the lack of airports in Chanhassen, the support the Metropolitan Council's Plan. City has two primary aviation concerns: first, that _ physical obstructions are controlled and secondly. As the region continues to grow, utilization of the seaplane operations. At the present time, the metropolitan highway system is expected to tallest manmade structures within Chanhassen are increase. In some cases, these facilities will the City's water towers, which average 135 feet. become congested. Because of the regional — Structures under 200 feet are not considered function that these facilities perform, many of the obstructions under State rules. Radio towers are factors affecting segments that are in the City of the only potential structures that may exceed the Chanhassen are beyond the City's control. — 200 foot threshold. If proposals for towers occur, Nevertheless, the City supports the desire to the city will require that they comply with all State. resolve transportation issues by coordinating its Federal and local requirements. own efforts with those of adjacent communities, — — Carver County, the Minnesota Department of Lakes Minnewashta and Riley are used by Transportation, and the Metropolitan Council. seaplanes at the present time. To date, there have _ been few conflicts between boat traffic and To this effect, the City has undertaken a seaplane usage. Continued usage in these areas comprehensive approach for dealing with these is not viewed as a major issue due to the small transportation issues. This approach considers the number of aircraft and off peak hour operation by following methods for dealing with current and — their owners. If in the future, the numbers of future problems: (1) an updated roadway plan. (2) aircraft increases or the potential for serious usage support of regional programs and activities; and (3) conflicts occurs. the City may work with State and initiation of a TDM program. The City's approach to — regional authorities to limit or ban seaplane usage. each of these is described below: Trails And Sidewalks 1 . The City has adopted a Transportation Plan that recognizes the need to support the While discussed primarily as part of the recreation metropolitan highway system. The major element in the Comprehensive Plan, the city elements of the new plan are: desires to be pedestrian friendly. To accomplish this, the city must assure that city improvements • An arterial and collector system spaced in and private developments provide pedestrian and accordance with Metropolitan Council bicycle linkages. An integral component of the guidelines contained in the Transportation transportation system is the pedestrian and bicycle Policy Plan. sidewalks and trails (Figure 11--see next page). The city continues to plan for an extensive trail • An arterial system that provides both east- — system throughout the community. These trails will west and north-south continuity between provide linkages between individual neighborhoods the City of Chanhassen and adjacent — as well as connecting these neighborhoods to the communities, thus providing alternatives to rest of the community. As new development is the metropolitan system for medium- and proposed and reviewed, the city will continue to long-distance inter-community trips. 26 fi pi., ___. ,,, iiir—V---- mai ' --1---1 47 1 1 dr 1-2 / -- . All N-< r'' jr� _ /ç1-Minnetoashta; � � i ` ,, I , IL —'Aispi n A �� __,t...., — i __ .,- 7 ' -*------ ..---wrio-70, 1 --, T AL -,i, --7<il r i., - 4L mai,_ _1 .,/-rt,_____, t, rig i r* i �_ Bbiak atAIMIFINHIVILLMITO'-'1'. - - '°-- 101 '..1 r,- i � ill ,. , � , :4111 IlliW' e I( ...._ 1 i. a, tql1 11171.7" ) - riciaNiiiiiiiii- 0---- , -.\ TRAILS r�r l-- PARKS tea• _ J? LAKES � `0 STREET ,y TH 212 101 ----- RIVERS /F\ Over , Z , 7. FIGURE - SRF PARKS AND TRAILS CONSULTING CSOvr.INC11 SRF NO.0972827 CITY OF CHANHASSEN COMPREHENSIVE PLAN UPDATE 1998 — Figure 1 l Trail Map 27 COMPREHENSIVE PLAN UPDATE 1998 _ Arterials and collectors that are parallel to the the opportunities and limitations that the plan metropolitan system, thus providing alternate provides. thus enabling all interested parties to plan routes for short and medium length trips. and with full knowledge. eliminating them from the metropolitan system. Jurisdictional Realignment Process 2. The City of Chanhassen supports Metropolitan Council and MniDOT plans to improve the In general, it is good policy that Carver County and metropolitan transportation system in the the State (Mn/DOT) assume responsibility for the following areas: arterial system, and that the City assume — responsibility for the collector and local street • Installation of ramp metering and bypass systems. This is, to a large extent, the situation in lanes aimed at preserving the level of Chanhassen. Currently, Carver County has _ service on the metropolitan highway accepted the turnback of TH 101. Other roadways system. To this end, the city will that are under consideration for jurisdiction change coordinate site-specific installations with include: — MniDOT in order to develop geometric designs at access streets that will • County Road 117 (Galpin Boulevard) from TH 5 accommodate the resulting queues and to the north City limits (turnback from County to reduce the traffic impacts on the local City). This roadway is designated as a local street system. collector street and does not function to serve regional or inter-county type traffic. • The City supports the efforts of Mn/DOT to construct TH 212. • Old TH 212 from west City limits to east City limits. Assumes new TH 212 would be PLAN IMPLEMENTATION constructed. Old TH 212 would then revert to _ — function as an "A" Minor Arterial and be revert Previous sections have examined future travel to County jurisdiction. demand. have suggested guidelines for developing — • TH 5 and TH 41 —The TSP developed by Mn/ a Transportation Plan, and have recommended a DOT indicated that all non principal arterial Plan that is responsive to these considerations. routes in the metropolitan area should be This section concentrates on examining the steps considered for turnback. This included both TH necessary to implement the Transportation Plan. It 5 and TH 41. These routes currently play a discusses a general strategy for moving from 1998 critical role in the region. A jurisdictional to the future in accomplishing the plan. change should not be considered unless new _ Transportation Plan Adoption TH 212 is constructed and a new river crossing is made linking new TH 212 and TH 169. By adopting the Transportation Plan, the City Council will establish the guidelines by which Access Management decisions regarding transportation facilities will be made in Chanhassen. It should be revised as The City of Chanhassen, through its ordinances, necessary to respond to changing conditions and has authority to approve developments contiguous needs. The City should periodically review the to city streets. As part of this process the City will assumptions under which the plan was developed, work with Mn/DOT and Carver County on managing including estimates of future development, access to all arterial and important collector routes population trends, changing financial resources, within the City. Access management will help energy considerations, and citizen and maintain mobility and provide increased safety for governmental input, and update the plan route users. Access guidelines will be developed accordingly. as part of the Carver County Transportation Plan. The City will assist in this process by carefully The plan should be circulated widely so that considering any parcel splits along arterial residents and the business community are aware of corridors, promoting frontage and backage 28 COMPREHENSIVE PLAN UPDATE 1998 roadways to serve developments rather than direct transportation related funds for expenditure. The access. In addition. the city will make available any fund receives revenue from two principal access guidelines to developers so that they are sources: 1) gasoline taxes. and 2) vehicle aware of limitations prior to beginning preliminary registration taxes. These two sources are platting of property. permanently dedicated to this fund. Ninety-five percent of the net proceeds of the Highway User Establish Improvement Programs Tax Distribution Fund are distributed annually according to a constitutionally mandated formula: An overall strategy of improvement. tempered by 62 percent to the Trunk Highway Fund. 29 percent fiscal constraints, begins with an analysis of key to the County State-Aid Highway Fund, and 9 intersection capacity improvement projects, safety percent to the Municipal State-Aid Street Fund. improvements and the protection of access by establishing strict standards and by designating Assessments necessary right-of-way. Identifying future needs for facility rights-of-way followed by timely "set-aside" Property that benefits from a roadway scheduled programs will, in the long run, save the community for improvement may be assessed for a portion of much in the way of financial resources. Roadway the cost of construction. In order to assess a improvements should also be geared toward property owner, it must be demonstrated that the providing for transit needs, particularly in the area value of their property will increase by at least the of meeting turning radii, traffic signals and amount of the assessment. For this reason. it is a adequate roadway structure. It should be pointed limited source of revenue. It is also limited by the out that non-motorized travel needs also must be almost certain requirement that property be _ carefully considered. Chanhassen will continue its adjacent to the roadway. It is difficult to show direct policy of designating sufficient right-of-way to benefit to property that is not contiguous. provide for sidewalk and/or bikeway needs. Nevertheless, this is an important source of revenue for the City. -- Sources Of Funding Ad Valorem Taxes Roadways under city jurisdiction are maintained, preserved, constructed and re-constructed by the If 20 percent of the cost of a city project can be City's Department of Public Works. Funding for assessed to the adjacent property owners, the these activities, including the administrative costs of remaining cost of the project can be added to the operating the department, are obtained from a ad valorem or property taxes of the remaining variety of sources including ad valorem taxes, property owners in the City. Ad valorem taxes for special assessments, development fees and tax street improvements are excluded from the state _ increment financing. A major concern of the City is mandated levy limits. the 'availability of sufficient funds for maintenance and construction activities. If funds are unavailable, Tax Increment Financing needed projects may be delayed or terminated and maintenance of existing facilities may fall short of Establishing a tax increment financing (TIF) district acceptable standards. The following discussion is a method of funding infrastructure improvements explains the existing sources of funding and that are needed immediately using the additional potential new sources of revenue. tax revenue to be generated in future years by a specific development. Municipal bonds are issued State Aid against this future revenue which is dedicated for a period of years to the repayment of the bonds or to An extremely important source of revenue to the other improvements within the TIF project area. City is state-aid. A network of city streets called When used appropriately, a TIF can accelerate _ Municipal State-Aid Streets (M.S.A.S.) is eligible for economic development in an area by insuring that funding assistance with revenue from the Highway the needed infrastructure is in place without User Tax Distribution Fund. This fund acts as a requiring support from the usual funding. This distribution or tax clearance fund, and tax income method of financing has already been used received into the fund is transferred to various successfully in the City of Chanhassen and is 29 COMPREHENSIVE PLAN UPDATE 1998 expected to be used again in selected areas in the tsystem. e . Shautility would be future. enmnstered by individual city deciding on their own fee structure. At the present Potential Sources of Revenue time, this sort of revenue source is not permitted by the state. but efforts are underway to persuade the Revenues available from current sources of funding State Legislature to pass legislation allowing the — are not always sufficient to meet highway cities to obtain revenue in this way. maintenance and construction needs. In order to reduce the potential shortfall of revenue. other APPENDICES — sources of funding need to be considered. Two Local Planning Policies options include impact fees and road access charges. Chanhassen has different policies pertaining to _ construction standards for urban versus rural local Impact Fees—Impact fees are assessed to streets. Urban roadways are required to dedicate individual developers as property is improved. An 60 feet of right-of-way for local streets and 28 - 32 attempt is made to determine what impact the foot wide pavement width. Rural roadways are also additional traffic will have on roadways both near required to have a bituminous surfacing 24 feet the development and away from it. The cost wide contained within a 60 foot right-of-way. Right- associated with improving the roadway system of-way widths may be reduced to 50 feet if there sufficiently to handle the additional traffic is are extenuating environmental or physical assessed to the developer. constraints on a property. Road Access Charge—Impact fees are assessed Current city policy also allows the construction of after an attempt is made to determine the specific private streets. Four single family residences may impacts of a specific development. A road access be served if it is demonstrated to be unfeasible or _ charge would be assessed all new development unnecessary to construct a public street. In such based on the trip generation rate of the new cases. 30 feet of easement is required with the development but without documenting specific roadway consisting of a 20 foot wide paved surface. impacts. Revenues from this funding source would Multi-family private streets require 24 feet of paved be used to construct or improve arterial and surface in 40 foot easements. Commercial, collector streets in the jurisdiction collecting the tax. industrial, and office development may be served New legislation would be required for this type of by 26 feet wide paved private streets within 40 foot funding mechanism to be implemented. Cities are wide access easements. in a position to assess these fees because of their zoning and development authority. Transportation Utility Billing—Under the concept of a municipal transportation utility. all properties — would be subject to a periodic fee (i.e., monthly, quarterly), based upon the number of vehicle-trips generated by the type of property. This revenue _ would then be used for transportation improvements that produce community-wide benefits including the reconstruction of existing roads and preventive maintenance to reduce deterioration. Such a fund would be especially useful for the maintenance of collector streets which are under the city's jurisdiction, particularly — when it is difficult to show enough direct benefit to adjacent property owners to be able to charge an assessment. 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This plan included a parts of Shorewood, Excelsior, Greenwood and description, designation and scheduling of the areas Minnetonka and connects to the Shorewood to be sewered by the public system, the existing Interceptor MSB-7016 at Town Line Road. and planned capacities of the public system, the _ standards and conditions under which the As shown on the Metropolitan Facilities Map there installation of private sewer systems will be are four extensions of the interceptor which project permitted. and to the extent practicable, the areas southward to the north boundary of Chanhassen. not suitable for public or private systems because of — health, safety and welfare considerations. a) A 12-inch diameter reinforced concrete pipe gravity facility flows between Christmas Lake and On April 19, 1982, the City, in accordance with the Silver Lake from the Chanhassen boundary to the — Metropolitan Land Planning Act, adopted the Shorewood Interceptor. Comprehensive Plan. The Plan was amended on March 3, 1986 to redesignate the 1990 MUSA line b) A combined gravity and forcemain facility flows as the year 2000 MUSA line and again on north from the Chanhassen boundary along November 16, 1987 the Plan was amended to Christmas Lake Road through a 15-inch diameter provide a policy on on-site sewage treatment and reinforced concrete pipe to a lift station, then program descriptions for infiltration and inflow through a 9-inch polyvinyl chloride pipe and an -- reduction. In 1991, the Plan was amended to 8-inch ductile iron pipe to the major interceptor. expand the 2000 MUSA line. c) A 9-inch diameter PVC forcemain runs from In 1993, the city adopted a Comprehensive Sewer the Chanhassen boundary at Chaska Road to the Policy Plan And Water Supply And Distribution west shore of Galpin Lake in Shorewood to the Plan. Both of the documents are being updated as major interceptor. — a part of this comprehensive plan. In order to be effective, the comprehensive sewer plan must be d) A 15-inch diameter RCP gravity facility flows closely coordinated with the comprehensive plan of northeasterly from the Chanhassen boundary at a community. The land use elements establishes Washta Bay Road along Pleasant Avenue to the the anticipated development pattern at specified northwest side of Mary Lake in Shorewood to the densities. Combining this information with an major interceptor. analysis of the existing system, it is possible to project future sewage flows, required system Function: The Shorewood II Interceptor provides capacities, and the means by which effluent will be metropolitan interceptor sewer service for 898 transported and treated. acres in northern Chanhassen as well as the — communities along the southern shores of Lake EXISTING SYSTEM Minnetonka. — The existing system narrative examines both the Timing: The facility is in place and is currently in regional and local sanitary sewer systems and use. specifically notes the characteristics of each. The _ regional data was provided primarily by the Capacity: The Southwest Facility Planning Study Metropolitan Council as part of Chanhassen's completed by the MCES in 1980 states the System Statement. Local data was compiled by capacity of the interceptor varies from 7.3 MGD to the City's consulting engineers. 15.5 MGD. 1 COMPREHENSIVE PLAN UPDATE 1998 Lake Ann Interceptor MSB-7138 (Existing) carry the wastewater flow generated from complete development in the local service areas Character and Location: The Lake Ann Phase I of Chanhassen and Eden Prairie along with the Interceptor sewer serves Chanhassen in the Lake Virginia lift station flows. Rice-Marsh Lake. Lake Susan, Lake Ann, Lake Lucy, the Riley Creek Watershed area, and the Timing: The facilities are in place and now in Bluff Creek Watershed area. The interceptor is a use. gravity sewer system. It was constructed in three phases and was completed in 1988. Capacity: The Lake Virginia lift station and forcemain design flow is 17.3 MGD. The total The interceptor flows southeast, beginning at Trunk wastewater design flow entering the Red Rock Highway 41 near the north city limits and extends interceptor, including the Lake Virginia lift station — approximately 4.5 miles to the Red Rock Interceptor flow is 30.4 MGD. The total design flow of the Red in Eden Prairie. The city's Lake Ann trunk sewer Rock interceptor at its intersection with the runs parallel to the MCES trunk sewer between the Purgatory Creek interceptor is 39.1 MGD, includes Red Rock Interceptor and Highway 5. the 30.4 MGD from Chanhassen. The Red Rock Interceptor starts at the terminus of Blue Lake Treatment Plant (Existing) the Lake Ann Interceptor and continues southeasterly through Eden Prairie where it Character and Location: The Blue Lake discharges into the Purgatory Creek Interceptor and Metropolitan Wastewater Treatment Plant is an eventually to the Blue Lake Sewage Treatment activated sludge plant. The upgraded and expanded — Plant in Savage. The Southwest Facility Planning facilities of the Blue Lake plant provide advanced Study completed by the MCES in 1980 states the wastewater treatment including nitrification. It is capacity of the interceptor at 43.4 MGD. located in the City of Shakopee just north of Highway 101. It discharges into the Minnesota Timing: The interceptor is in place and now in use. River. Lake Virginia Lift Station, Lake Virginia Function: The Blue Lake Plant provides primary Forcemain, Lake Ann Interceptor, Red and secondary treatment for sewage flows for Rock Interceptor MSB - (Existing) communities in a 325 square mile area on the west side of the Metropolitan Area. Character and Location: This combination gravity flow and forcemain system begins at the Lake Capacity: The current design capacity of this Virginia lift station. The Lake Virginia forcemain facility was expanded from an average annual — runs along 62nd Road, Church Street, State wastewater flow capacity of 20 mgd to 32 mgd. Highway 7 and State Highway 41. The Lake Ann Limitations on communities flow to the Blue Lake interceptor runs from State Highway 41, Treatment Plant have been set by the MCES. The southeasterly across open land to State Highway flow allowance for Chanhassen for the years 2000 No. 5, south of Lake Ann. South of State Highway and 2010 are based on population projections by No. 5 the interceptor parallels Chanhassen's the MCES. _ existing Lake Ann trunk to where it connects to the existing Lake Ann Phase I interceptor. The Red Rock interceptor starts at the termination of the Lake Ann Phase I interceptor and continues southeasterly through Eden Prairie to the Purgatory Creek interceptor at Research Road. Function: The Lake Virginia lift station and forcemain will carry wastewater flows from western Lake Minnetonka communities. The Lake Ann interceptor and the Red Rock interceptor will 2 I�: L\ t. � �t�,r:N'• 11`��1.;�_Me � .ye'1 �0��i.�t� ��11/I,.IllllNl�•_ ,,:5:':' ._1: r,"""- .:._C 4it�.:► ..MM e��.• :.-IIF. �� . ��,.; .;.;.;..,, ..,.-. -:i.�l `.•: i i:-=La /.�..q:� � .�:".7=:a•�1 .i^��►fly �`�� .�ti;. .;:�:;t� i, rr,.�;;i�llbiiiii it ilk =_uf,.• �•!�16 �=ayi• =• •- I t� =��!itr. '.:- %/i -:... isI\ `kLnF'�'' u�( i. :i> IlkT ,.. ,„.,::::,...xdreor..4 .is 151*• N111144Q!„.f...f.F .:;•.,:igi. 111,111k • • r t e,-irr,,,.,,,,,,,„ - !,,.,.,..,. :5. ....„., ,,,......,...„,,,:.,..,,,,..,„..: -4111.7;i:::::::.: ,::. 1 i;"--.,.... ...,,.,,,,.,.,..;1.1 'L ".!.!?:;:,.,7... ..o ,..,�f ,t 15 T" _ i ài _I,IIID lax .. fa♦■.r '��, irm k �� ., w3 ]li anr A �i-;4sD i..,>{ - moi° � go �� ' _ iii .. al Illk 7.7 Ade, • ..,..e.lA ,,,ga„.5„NNSAT..-ma, po„. •• .'i., s', c,..:.1.11_ Ir. A'l .k•J U;I:i_ hiiiii, . tIrr N _ lug 1.-A it i� ,^ is �,"'`--v.=-I �• - / Ur= 1 ' +3arM�.I I I ' II - f IF 1 B-1 0 ���ifj _. i 4,01111111119 B I-3 , —■�v. rum—►�I��ii- • MIL bit\1 ..■.., CITY OF „ 7,04,,m471.11:ytiiimptriiiiiiviworar ��_>_ ,. - ^i CHANHASSEN ' LB-3 Trunk Sanitary Sewer System ��ill �;,ip_-:;.i. ' .... ;M1 ,A LEGEND , scl Subdistrict Designation , • Proposed Lift Station ❑ Existing Lift Station /\/Proposed Forcemain Al/Existing Forcemain /.. Proposed Tnnk Sewer .Existing Trunk sewer /. . NMejor District Boundary 1>N Minor District Boundary x 4E S ma,MM. 1 11w COMPREHENSIVE PLAN UPDATE 1998 3 COMPREHENSIVE PLAN UPDATE 1998 LOCAL SYSTEM Schoell & Madson by Planning, Design and Research, 1982). The 1982 report stated that As of 1998, the existing Chanhassen sanitary Chanhassen's sanitary sewer collection system is in sewer system includes approximately 96 miles of "generally good structural condition"; however, there piping and 29 lift stations. The sewer in the were several sections in the downtown area that downtown portion of the community was contain disintegrated pipes and manholes. These constructed in 1957 with service being provided to were replaced during the Downtown the outlying areas between 1972 and 1976. Much Redevelopment Project. Foundation draintile and of the downtown sewer system was replaced sump connections were thought to exist in the older — during the Downtown Redevelopment Project in neighborhoods north of the downtown area, these 1987 as part of the Community's Central Business were also cited as a contributor to the I/I problem. District Redevelopment Program. Since 1991, Lift stations 1 and 2 were also identified as _. trunk sanitary sewer systems have been experiencing flows in excess of their design constructed for the Lake Riley and Bluff Creek capacity. local sewer districts. Flow from the local system is _ directed to MCES interceptors. The industrial flow To address these problems, Chanhassen is using a from the M.A. Gedney Company, located on variety of methods. In 1987, the City Council Stoughton Avenue adjacent to the City of Chaska approved the Downtown Redevelopment Project in the southwestern portion of the community, does which included replacement of sanitary sewer lines not feed into the Chanhassen system. The in the downtown area as well as the establishment Gedney Company has an on-site treatment facility of a new storm sewer system. These improvements which, during overload times. discharges into the have eliminated a portion of the I/I identified in the Minnesota River. M.A. Gedney Company reports 1982 report. Secondly, the City Council adopted its discharge activities to the MCES every six Ordinance No. 5 which prohibits discharging into the months. sanitary sewer system of any "surface or _ sub-surface waters." Sump pumps are also The existing Chanhassen sanitary sewer system is required to have an outside discharge. Further. the in generally good condition. City has televised over 40,000 lineal feet in the residential areas north of the downtown area to INFILTRATION AND INFLOW locate defects in the system. The City has followed with annual rehabilitation programs, and budgets for In previous years, one problem affecting the system rehabilitation and televising on a ten year — Chanhassen sewer system was infiltration and frequency. The City Council has a policy of requiring inflow (I&I). I&I is the combined total of all clear new sewer construction to be televised prior to its water entering the sewer system through cracks in acceptance by the City for maintenance. The piping, faulty manholes, yard drains, foundation maintenance department has been increased to drains, manhole covers and other means. seven full-time people from five. This allows more frequent and effective maintenance of the city's The Lake Ann Sewer Facility Agreement entered utility infrastructure. into between the City of Chanhassen, Metropolitan Council and the Metropolitan Waste Control In 1990 the City installed a radio telemetry system Commission requires that the City amend its sewer (such as the ones identified in the 1982 report) to plan to include a policy, ordinance, and reduce response time by City personnel to attend to administrative program to reduce stormwater inflow system failures such as lift stations to prevent in the sewer system consistent with the Metropolitan environmental harm and/or basement backups and Waste Control Commission's policies. Copies of the to aid in isolating I/I . Agreement, Codes, Ordinances and Standard Specifications are included in the Appendix. The most difficult aspect of the I/I problem is to — correct inflow from individual households. In 1998, In 1982, the City conducted a study on the extent of the City of Chanhassen will complete a private the infiltration/inflow problem in Chanhassen property sump pump inspection program. City ("Report on Infiltration/Inflow Analysis," prepared for funding of the sump pump inspection program in the 4 COMPREHENSIVE PLAN UPDATE 1998 amount of $110,000.00 is demonstrative of the people has given the City a better response time to commitment to eliminating I/I within the city. In equipment failure. A system of preventive conjunction with the inspection program, a maintenance has also been undertaken by the City maintenance program to insure continued to help prevent equipment failures. Additional compliance with city code is being established. development will require the installation of additional lift stations. The City carefully selects the — The city believes that the next step in the overall mechanical components for each new station based comprehensive program to reduce I/I from the upon the performance records of the existing sanitary sewer system is to construct drainage components. All new stations will be connected to improvements necessitated by the recent sump the telemetry system. pump inspection program. Through the sump pump inspection program, several neighborhoods in PIPE DEFICIENCIES Chanhassen have been identified which need storm drainage improvements in order to ensure that In 1987, the City Council approved the downtown sump pump discharges do not return to the sanitary redevelopment project which included replacement sewer system. In these neighborhoods, public of sanitary sewer lines in the downtown area. These safety and health may be compromised by improvements have been completed. By this action discharging sump pump drainage to the exterior of the majority of pipe deficiencies in this area have the homes. been corrected. The balance of the lines in the downtown area are new and built to current LIFT STATIONS standards. No additional problems are anticipated. Because of Chanhassen's rolling topography, the LAND USE existing sanitary sewer system contains 29 lift stations and in all probability, future development The availability of an adequate sanitary sewer will require added installations. Lift stations being system is a primary consideration in the mechanical devices are subject to occasional utilization of land for urban purposes. The malfunction. When a failure occurs, the problem is adequacy of sanitary sewer in a given area is, for usually corrected without affecting adjacent example. directly related to the intensity of land residential properties or adverse environmental development possible for the area. Future impacts. locations of industries, businesses, apartments and homes are limited and defined by the availability, quality and expense of public utility installation and the degree of long-range utility planning which has been accomplished by the City in anticipation of new development. It is • particularly important to coordinate long-range _ - — utility planning with land use, transportation and community facility plans because all are -- - • interrelated and interdependent. m� raw- y Utilizing the concept of comprehensive utility planning and encouraging development to locate in areas with available infrastructure will insure that private development will follow public investment rather than the reverse which has been the traditional pattern. The intention of this philosophy is that such practices will not only The proper functioning of lift stations depends upon promote the use of existing public facilities to two factors: the installation of quality equipment their maximum capacity but will also minimize and proper maintenance of mechanical additional public investments, particularly those components. The addition of more maintenance of an unplanned and unexpected nature. 5 COMPREHENSIVE PLAN UPDATE 1998 Chanhassen is fortunate in having sanitary sewer It is possible to project the breakdown of sewered — facilities available to about 40 percent of the land versus unsewered population providing that the area of the community. New sewer installations in following assumptions are made: developing areas present no insurmountable problems to the City or developers. Only in 1. That the vast majority of new residential certain areas would the installation of sanitary growth will be connected to sanitary sewer service be difficult because of the expense sewer. involved due to existing soil and topographic conditions, land ownership patterns, distance 2. That no sewer service will be available to from existing sewer lines and other factors. drainage areas outside of the expanded MUSA line. Within the Urban Service Area, certain zones should be classified as "restricted" because of 3. That within the zones where sewer service development prohibitions. Floodplains, major is or will be available, the existing units wetlands, bluffs and park areas fall under this presently served by on-site systems will be _ category since it is unlikely that they will ever connected to the municipal system. contain residential, commercial, or industrial Exceptions to this are likely to be large lot structures and hence, do not have major sewer subdivisions most of which were platted service needs. The 2020 land use plan identifies since 1985 with new on-site sanitary — several areas as restricted. These areas are systems built to current standards. Homes depicted on the City of Chanhassen 2020 Land in these subdivisions are provided with Use Plan Map as public/semi-public and parks/ alternate drainfield sites and there is an — open space. expectation that no municipal services will be required until environmental issues POPULATION AND CONNECTION surface. These subdivisions include Lake _ PROJECTIONS Lucy Highlands, Sun Ridge Addition, - Timberwood Estates, Hillside Oaks, Lake Future sewage flows are a direct result of the Riley Woods, Lake Riley Meadows, _ population of a community as well as the Deerbrook, Halla Great Plains Addition, numbers and types of commercial and industrial Pioneer Hills, Hesse Farm Addition, and land uses. Because of this, the most accurate Bluff Creek Highlands. way to project future sewage system needs is through an analysis of growth trends and land SEWERED POPULATION use projections. Sewered population projections are based on ADDITIONAL RESIDENTIAL SANITARY SEWER future population projection less those CONNECTIONS residential units with existing on-site systems that will not be connected to the sanitary sewer _ Utilizing the above population projections, it is system. possible to estimate the number of annual sanitary sewer connections. These estimates were As of April 1, 1998, Chanhassen had an _ developed by applying the community-wide estimated 6.608 housing units with 6,278 household occupancy figures of 2.8 in 2000, 2.7 in occupied, using an occupancy rate of 95%. The 2010 and 2.65 in 2020 persons per unit to the City of Chanhassen estimates that in 1998 projected additional annual population. This approximately 500 units have their own sewage process results in the following estimated treatment systems. These units fall outside the residential sanitary sewer connections. MUSA line or are large lot subdivisions and are not projected to connect to the Chanhassen — 2000 2010 2020 sewage collection system in the near future. 6,945 10.913 13,667 _ 6 COMPREHENSIVE PLAN UPDATE 1998 SEWERED POPULATION PROJECTS Estimated Commercial Industrial Flow OnSile Total Persons Total Occupied Occupied Sewered Year Households Households Treatment Sewered Per Population Total Sewered Gallons per ,� Households Households HO14ehold Year Acreage Acre per Day Total Flow(g/d) , 1990 4372 4.153 4 = 3747 292 10,921 • 2000 1,209 1,000 1,209,000 1997 6334 6.014 500 5.517 2.9 15.999 — 2000 7.446 7.073 500 6573 26 18,404 2010 1,500 1,500 2,250.000 , 2010 11.1 1 3 10.557 500 10.057 2 7 27.154 _ 2020 14.067 13.364 500 12.864 265 34.087 2020 1.700 1,500 2,550,000 ESTIMATED SEWAGE FLOWS Chanhassen anticipates a year 2000 total Flow projections by land use are as follows: domestic sewage flow of 1,840,400 gallons per Sewage Generation day (1.840 MGD). Of the total sewage flow, Land Use Net Density Occupancy Rate 330,000 gallons per day represents the effluent Residential-LD 2.9 du/ac 32 p du 100 g/c/d that will be conveyed northward into the Residential-MD 6.0 du ac 2.5 p%du 100 g/c/d Shorewood Interceptor. 100,000 gallons per day Residential-HO 10 du/ac 1.7 p,du 100 g/c/d flows into Eden Prairie at Highway 101 and Duck Lake Road and the remainder will be handled by Commercial 1.500 gal;ac/day the Lake Ann/Red Rock Interceptors. Industrial 1.500 gal/ac/day Schools 15-25 gal/person/day All of the commercial and industrial flow will be _ Churches 1/2 gal/seat/service routed to the Lake Ann/Red Rock Interceptors. The total non-domestic flow combined with the According to the MCES, residential flows have residential flow yield an anticipated year 2000 been running over 100 g/c/d. In 1988, the total average flow of 3,049.400 gallons per day -- estimated flow was 104 g/c/d. A concerted effort (3.049MGD). by the City to reduce private property 1/1will be needed to reduce the flow below 100 g/c/d. Lake Ann/Red Rock Interceptor In 1989, Chanhassen had a total of 323 acres of The Red Rock interceptor is designed to carry 43.4 industrial, commercial property within the existing mgd from Chanhassen. The 43.4 mgd includes __ MUSA line served by municipal water. The 17.3 mgd from the Lake Virginia lift station and estimated water usage was 790 gal/acre/day, an forcemain. In January, 1992, the MCES granted the increase of approximately 200 gal/acre/day over the city additional capacity in the MCES interceptor _ 1980 estimate of 594 gal/acre/day. It is anticipated facilities from 13.1 to 16.1 mgd. Chanhassen's that the increase in sewage flows will continue at current allocated capacity is 16.1 MGD. the same rate to the year 2000 giving an estimated flow of 1 ,000 gal/acre/day. For 2010 and 2020 Estimated Sewage Flows Lake AnniRed Rock Interceptor development, the city is estimating sewage generation rates of 1,500 gal/acre/day for Total Average Peak Flo, commercial and industrial lands. Year Daily Sewage Peak Factor 9di Flow Estimated Residential Average Flow 2000 2,619,400 2.7 7,072,380 Total Total Gallons per Total Flow Year Sewered Sewered capita per 2010 4,457,400 2.5 11,143,500 Units Population day l9 d) 2020 5.447,700 2.4 13,074,480 2000 6,945 18,404 100 1,840,000 Chanhassen has embarked on a rigorous 2010 10,613 27,160 100 2,207,400 program to eliminate as much as possible of the — 2023 13,567 34,087 100 3,408:700 private I/I. With the reduction of the I/I, additional expansion beyond the year 2000 is possible. 7 COMPREHENSIVE PLAN UPDATE 1998 TRUNK SEWER EXPANSION Current Ordinance Provisions The year 2020 MUSA Line encompasses all of The current individual sewage treatment system Chanhassen. The city has established a phasing (ISTS) ordinance was adopted in 1987. It adopts plan to provide urban services to the entire Minnesota Rules Chapter 7080, " Individual Sewage community. This phasing map is incorporated as Treatment Systems Standards," by reference and — part of the land use element of the comprehensive also includes additional standards. The additional plan. standards provide for the construction of alternative ISTS, provide for reduced system setback when — The City proposes to constructed the Bluff Creek necessary, require system upgrades to trunk sewer necessary to service the area within the accommodate additional needs, require a water MUSA boundary and with the use of a lift station or monitoring device, require two ISTS sites, and _ stations pump into existing laterals within the Lake require ISTS site protection. The ordinance also Ann Service Area. The trunk sewers will be sized to contained provisions requiring licensing for ISTS service the total area within the drainage district. professionals, pumping reports, and detailed _ Flow from the proposed lift station will be directed to designs. The current ordinance contains existing or proposed lateral lines and then to the requirements for the repair and/or replacement of Lake Ann trunk and the Lake Ann interceptor. failing systems as well a requirement for connection to municipal sewer service within one year of its — Expansion within this area will be monitored availability. closely to ensure that projected flows to the Lake Ann interceptor will not cause Chanhassen to Proposed Ordinance Revisions — exceed its allocated flows to the Red Rock interceptor. Staff is in the process of revising the current ordinance and will recommend modifications _ FLOW MONITORING primarily to three areas. First, many of the additional standards in the current ordinance will be deleted. The Metropolitan Waste Control Commission Most of these standards are incorporated into the _ records all sanitary sewer flows originating in the current Chapter 7080 which was adopted by the City of Chanhassen. They also review all proposed state in January, 1996. additions to the flow to determine the impact on Chanhassen's flow allocation. Second, changes will be made to the section regulating failing systems. A failing system is ON-SITE TREATMENT SYSTEMS defined in Chapter 7080 as any system discharging sewage to a seepage pit, cesspool, drywell, or — The proper functioning of on-site treatment leaching pit; any system with less than three feet of systems is a concern of both the Metropolitan separation to saturated soil; or any system posing Council and the City of Chanhassen. The Lake an eminent threat to public health or safety. The _ Ann Sewer Facility Agreement entered into current ordinance generally requires a failing between the City of Chanhassen, the Metropolitan system to be repaired or replaced within 60 days. Council and the Metropolitan Waste Control This time limit is appropriate when a system is Commission required that the City include in its discharging sewage to a seepage pit, cesspool, sewer plan a description of adopted on-site drywell, or leaching pit or when a system poses an sewage disposal ordinance provisions consistent eminent threat to public health or safety. The third with application requirements set forth in the determinant of a failing system - less than three feet Metropolitan Council's Comprehensive Sewer of separation to saturated soil - is new to the Policy Plan, including Policies 42-47 and definition and will effect the majority of pre-1987 Procedure 10. The following describes existing ISTS. The legislature modified the Chapter 7080 regulations and reviews policies relating to existing requirements to permit only two feet of separation systems and future subdivisions containing on-site on existing systems, but it is estimated that systems. Chanhassen has about 100 systems that are defined as failing. Staff will recommend that 8 COMPREHENSIVE PLAN UPDATE 1998 existing failing systems with less than two feet of WATER SYSTEM separation be repaired or replaced within four years. Existing System The third area of significant change to the current ordinance will address ISTS maintenance. The A water system is composed of two elements: 1) current ordinance contains requirements for production; and 2) distribution. Relative to inspection and/or pumping of septic tanks every two production, the city produces most of its water from years. A system to track and enforce these deep wells. Five of the City's seven production requirements will be implemented. Additionally, wells produce water from the Prairie Du - staff will recommend ISTS compliance reports be Chien-Jordan aquifer and range in depth from 471 required when a structure is sold, before a permit is feet to 520 feet deep. Two of the wells produces issued for an addition or alteration, and at six year water from the glacial draft formation approximately _ intervals for all ISTS. Staff will recommend non- 215 feet deep. The drift well provides the city with a complying systems be repaired within one year. diverse and economical source of water. Well number 8 is scheduled for installation in 1998. Revisions to the current ordinance will insure that all - ISTS within the city are maintained in good working The city wells are described as follows: order and that all failing and non-complying systems are replaced or repaired within a reasonable time. City Well 1 - Abandoned Review and adoption of a revised ordinance is scheduled to occur in March and April. 1998. Corner of Great Plains Boulevard and Santa Fe Trail Future Subdivisions Unique Number: 220995 Well Field: Lotus The City amended its Subdivision Ordinance Aquifer: Prairie Du Chien-Jordan (Ordinance No. 33-E) in 1986 to require the Well Depth: 518 feet submission of soil boring data and identification of Casings: 10 inch to 109 feet two septic system sites for each proposed lot. This 6 inch to 335 feet data is reviewed by City staff and its consultant to Static Water Level: 1962 - 133 feet determine that each lot contains two drainfield sites and contains adequate buildable area for the two Minnetonka Middle School Well septic system sites, house pad, appropriate location - of the well, and appropriate setbacks as required by State Highway 41 south of Highway 7 City ordinance from wetlands and lakes. The Unique Number: 200810 ordinance also specifically prohibits location of Aquifer: Prairie Du-Chien-Jordan septic systems on slopes in excess of twenty-five Well field: Galpin percent. Well Depth: 520 feet Casings: 12-inch to 235 feet The City's ordinance and administrative procedures 10-inch to 419 feet are consistent with and enforce Policies 42-47 and 6-inch to 103 feet and 10 inches Procedure 10 of the Metropolitan Council Waste Static Water Level: 1963 - 170 feet Quality Plan. Production Capacity: 250 gpm With the exception of existing large lot subdivisions, The records for Wells 2, 3 and 4 suggest that all parcels of land currently in existence, or three wells are finished in highly productive development outside the MUSA district that segments of the Prairie Du ChienJordan aquifer. maintain a one unit per ten acre density, the city will The productive section of this aquifer suggests the no longer permit residential developments that are possibility that additional wells could be installed in not serviced by urban infrastructure services. the vicinity of these existing wells. At this time, groundwater withdrawals within the city appear relatively light and from a yield standpoint should not restrict the placement of additional wells within 9 COMPREHENSIVE PLAN UPDATE 1998 Water Distribution Map 10 r N. 200,000 GALLON WATER TOWER HIGH WATER LEVEL=EL. 1200 SCHOOLWELL 250 GPM PRESSURE REDUCING VALVE 0 1 GATE VALVE �PESSURE REDUCING VALVE II I G ER VICE AREA r NORMALLY CLOSED 3,500,000 GALLON STORAGE TANK ( 1.5 MG USABLE) HIGH WATER LEVEL=EL. 1120 , - I cis.--VALVE NORMALLY CLOSED ' � I LAKE MINNEWASHTA SERVICE AREA APPROX. WATER LEVEL=EL. 1120 0 LOW ' ERVICE A EA WELL No. 7 100,000 GALLON 2000 GPM WATER TOWER PROPOSED { WELL No. 8 { 2000 GPM WELL No. 6 { 1280 PM _ FUTURE TOWER • 0.5 MG HIGH WATER LEVEL=EL. 1200 WELL No. 3 1000 GPM { O WELL No.2 1000 GPM 0 STATIC PRESSURE { — — — — 50 PSI WELL No.5 PESSURE REDUCING VALVE < 0 704/ GPM QBOOSTER PUMP I < f WN.F.D. STATIC 68 PSI PROPOSED TOWER 1.5 MG f - FUTURE WELL HIGH WATER LEVEL=EL. 1120 1000GPM 975 ELL No. 4 12-1 PM t 9 — — — — — _ PRESS RE REDUCING — ^— VALVE FUTURE TOWER 2.0 MG HIGH WATER LEVEL=EL. 1120 CHANHASSSEN , MINNESOTA SCHEMATIC OF MUNICIPAL WATER SYSTEM JUNE 1988 — - — -------, .i i- '",-' ''.11r..i'''--..'-'7.!.1:rii'744P0-1"-Eiii4111311ilkvALFAsstimu.-•;,L'Di V 7674.4-11 Lake ilarlOgifirie4Z:s t.'-':'•i sER ,,,.."., ,..••'; ill Iri's -- '11'),'..,•: :sr,i4t-11.zzi;,.144i glE.-T- :7;i1i 10106!*,,liciiN1"1„_... .iijillMillig 2._J."..4.;..19;li,:lit'7:L&:!::7.::;1:-.4..11FiFamii3efielt,,TISIAJF:13JVV.%'>VA.'L;'th^ 11117';',Ifk;;S:so il I ii G.Lump ip4iilig .4p.4' ilagi 5 47 tri IMIV/110.14 2::17F;:iiiiiiirtflyg itirMeit\IV,t?A‘tif",, /..r....,;- --,--1.2"b-4,9`-''' lir- .... .:,-..... - - ........ .1..4-4 ••,,, :- 2.....7. OW lir Elbi*W-• -di I'F'''''.11`'itil::::::*!-'%;" W41 ;""."':,:i 4'ff. 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URE oNE 'o, Water Distribution System Or ' MP LEGEND - Existing water Main -- Future Water Mule • Existing Pressure MANCINI;Station • Future Pressure Reducing Station • Existing Wel • Existing Elevated Storage Reservoir • Future Elevated Storage Reservoir .• Point Designation RAY 19913 il eamatre• Mir!I 0 003 X*3 IZI Anmeleir S."fad ........A.m. MMXIM COMPREHENSIVE PLAN UPDATE 1998 Existing Well Data Casing Total Draw — Well Unique Year Well Depth depth Size Inner Water down Capacity No. Well No. Installed Acquifer Field (ft.) (ft.) Casing Level (ft.) (gpm) 2 220976 1969 Pdc/Jor Lotus 246 471 20" 136 15 1,000 3 200195 1973 Pdc/Jor Galpin 317 500 16" 154 16 1.000 4 180913 1981 Pdc/Jor ---- 289 478 18" 90 28 975 5 471308 1989 Drift Lotus 185 215 12" 132 10 700 6 494519 1991 Drift Lotus 175 215 12" 130 20 1,200 7 951430 1996 Pdc'Jor Galpin 344 504 18" 149 24 2000 8 Unknown 1998 Pdc Jor Galpin 320 500 18" unknown 20-30 1500-2000 these aquifers. The results from Draft Well No. 5 Year Constructed: 1965 have been very encouraging and holds potential Height: 145 feet — for construction of additional drift wells in this area Ground Elevation: 990 feet with production rates possibly over 1000 gpm. High Water Elevation: 1120 feet Service Area: Low With the exception of the required application of chlorine and fluoride at each well house, the city Murray Hill Road does not treat or soften the water supply prior to _ distribution. Well No. 4 has a high iron content Capacity: 200,000 gallons although the remaining wells are within acceptable Type: Single Pedestal Spheroid levels. The water from all wells is hard ranging Year Constructed: 1972 from 260 - 340 mg/I of total hardness. The city Height: 132 feet — has no plans for softening in the future, although it Ground Elevation: 1068 feet may be appropriate to consider iron removal at High Water Elevation: 1200 feet Well No. 4. Service Area: High The water distribution system presently consists of Powers Boulevard (CR 17) at Lake Lucy Road over 104 miles of watermain ranging from 6 inches _ to 18 inches in diameter. The majority of the system Capacity: 3.5 million gallons (1.5 usable) is constructed of ductile iron pipe, although there Type: Ground Storage Reservoir are several older areas of the city having cast iron Year Constructed: 1988 pipe. Municipal water service is provided to the Height: 75 feet urban service area of the city as shown on the Ground Elevation: 1050 feet enclosed map. High Water Elevation: 1120 feet Service Area: Low — The distribution system also includes three water storage tanks (two elevated storage and one There are three service areas operating at ground storage) and one booster pump station different pressures (elevations) in Chanhassen. — (1000 gpm) located at Lake Lucy Road and Galpin The low service area is served by well pumps 2, 3, Boulevard. The storage tanks are described as 4 and 5 and by a 100,000 gallon water tower and follows: a 3,500,000 gallon ground storage reservoir. _ Pumps 2, 3, 4, 5, and 6 are controlled to maintain West 76th Street at Kiowa a water elevation in the two storage tanks near 1120. This elevation provides adequate pressure _ Capacity: 100.000 gallons to serve the users in the low pressure service Type: Single Pedestal Spheroid area. 11 COMPREHENSIVE PLAN UPDATE 1998 The high service area is served by a booster pump 4. Constructed Drift Well No. 5 near Well No. 2 to _ station, wells 7 and 8, the school well and a increase the City's production capabilities and 200,000 gallon water tower. Normal operation has diversify its aquifers. the booster pump pumping from the low service area watermain system to the high service system 5. Installed a Supervisory Control and Data to maintain a water elevation in the water tower of Acquisition (SCADA) system to allow for more about 1200. The School Well is used in the efficient management of the water system and summer to supplement the high service area. The more efficient handling of emergencies. School Well does not have automatic controls, but -- is manually started and stopped during high 6. Constructed the Chanhassen Hills trunk consumption periods. watermain. The third service area. the Lake Minnewashta 7. Constructed Lake Drive East loop to Dell service area, is served via a pressure reducing Road. valve off of the high service area. The pressure _ reducing valve reduces the pressure by about 30 8. Constructed Market Boulevard/Lake Drive PSI to serve the lower elevation homes of the Lake loop. Minnewashta area. 9. Construction of the Lyman Boulevard Great A schematic of the water system depicting the three Plains Boulevard loop watermain. service areas and pumping and storage facilities is attached. Alternative operating schemes are built 10. Construction of wells number 7 and 8 in the — into the system, including: Galpin well field. • The high service area can be served by Well The major system improvements yet to be Pump No. 3 from the low service area while addressed include a loop of the system to the Lake bypassing the booster pump station and the low Minnewashta Parkway service area. construction of service area. the 2.0 MG water storage tank (proposed for construction in 1998), elevation 1120, at Highways 5 • The low service area can be supplemented from and 41, construction of a o.5 MG water tower, the high service area through pressure reducing elevation 1200, north of Highway 5 along Highway valves in the booster station and near Yosemite 41, a 1.5 MG water tower, elevation 1120, along Lane and West 63rd Street. Lyman Boulevard, and the extension of additional trunk watermain to serve the rest of the community. The city has completed a number of water system projects between 1985 and 1998 to address The City has adopted a maintenance program for system deficiencies. Some of the key elements are the existing water supply and storage facilities. This listed below. program includes: cleaning and painting storage — tanks every seven years and well inspection and 1 . Construction the Lake Lucy Road trunk rehabilitation every five years. The water system is watermain to connect the low and high service manually flushed in the fall of each year to eliminate areas and provide backup to the high service its "rust" deposits and red water from the system. area. PRODUCTION 2. Constructed a 3.5 million gallon ground storage reservoir providing a net capacity addition of 1,5 At the present time, the City's water production million gallons to the system. capabilities are adequate. This situation has been greatly enhanced by the recent construction of 3. Completion 12-inch and 18-inch trunk Wells No. 7 and 8. Prior to this, during the droughts watermain branches on Kerber Boulevard, of 1989 and 1997 for example, all wells operated Powers Boulevard and the Chanhassen Hills continuously for extended periods. Rapid industrial trunk watermain. and residential growth over the past 10 years has 12 COMPREHENSIVE PLAN UPDATE 1998 Project 93-26B), Lyman Boulevard - Lake Riley • Area - Trunk Utilities (Improvement Project 93- 32A&B), and Coulter Boulevard Phase III (Improvement Project 97-1). 11N Projects of this nature are required to follow State Statute 429 and a specific assessment policy is adopted with each project to recognize Ltheir individual peculiarities. CAPITAL INVESTMENT PROGRAM - The following sheets summarize specific system capital improvements to provide service to the expanding Urban Service Areas with costs assigned and timing estimated. The capital investment program attempts to provide an implementation plan for the Parks & Open Space Element, the Surface Water Management Plan, the Water Supply and Distribution Plan, the Comprehensive Sewer - Policy Plan, the Transportation Element. and the Land Use Plan for the City of Chanhassen. The capital investment plan provides a guide for capital NEM improvements in the city. However, due to its scope, it can only be accurate for the current budget accelerated the demand. The city evaluated its year (1998). Extraneous forces including present and future production needs, recognizing demographics, the economy, state and federal the recent well additions, to determine the timing for legislation, funding availability, development future well construction as part of a Well Field Study patterns, jurisdictional policies and programs, and and Water Management Plan, July, 1996. local politics will all impact the plan. The city will monitor annually the actual capital projects FUNDING undertaken in the community and compare them against the capital investment plan. Periodically. Historically, the city has used its trunk water the capital investment plan will be updated. At a hookup charge to fund the trunk system minimum, the updates will occur every five years improvements and major maintenance items. These charges are typically paid by each INFRASTRUCTURE GOALS AND POLICIES property at the time of building permit application. It is anticipated that with continued GOAL anticipated growth, these charges will provide the necessary funds to construct these Provide public sanitary sewer, water, storm water, improvements although periodic increases may electrical, natural gas and communication service to certainly be warranted to keep pace with all urban density residential developments and all inflation. Wherever possible, it is prudent to non-residential, commercial and industrial uses in a construct the trunk mains where lateral service efficient and effective manner which is responsive benefit can be assigned. Depending on future to natural resource protection concerns within the development and available revenue in the trunk City. fund, it may be necessary to assess trunk benefit to a service area in anticipation of development POLICIES or to support development as was done to construct the city's Chanhassen Hills trunk • It shall be the responsibility of the City Engineer watermain (Improvement Project 86-2), Coulter and Planner to give technical advice and aid to the Boulevard Phase II - Trunk Utilities (Improvement 13 COMPREHENSIVE PLAN UPDATE 1998 Planning Commission and City Council in accordance with the sequencing and level of preparation of necessary utility plans. service indicated in the Chanhassen Comprehensive Plan. • Formulation of utility plans shall be coordinated with city plans for land use, transportation, open • Maintain, operate and reconstruct where — space and community facilities as described in the necessary, the existing utility systems so that they Chanhassen Comprehensive Plan. Wherever can support existing development and practical, utility plans should be coordinated with redevelopment in the urban service area. the Park and Recreation Commission's plans for linear open space and passive play areas. • Establish an ongoing system of inspection and Eventually, it is envisioned that the entire city will monitoring of local sewer, storm and water be serviced by public facilities. systems. • Formulation of local plans for utilities shall be • The direct discharge of untreated domestic or consistent with the plans and procedures of the industrial waste into any water body, water course, — Metropolitan Council Environmental Services or drainageway shall be prohibited. (MCES) which accommodate the future growth and continued vitality of the City of Chanhassen. • Roof water and paved surface drainage shall be In response to the Metropolitan Council Growth channeled into a storm water system as approved Strategy. the City will develop and adopt a MUSA by the Chanhassen City Engineer and appropriate expansion schedule. regulatory agencies. • A plan should be developed to plan and provide • Storm water run-off shall be held on the land for an efficient local sewage collection system to the greatest extent possible. transport sewage to appropriate metropolitan • All urban density development shall be served facilities. by comprehensively designed storm water drainage systems. Such systems shall be • Ensure that local sewer investments are consistent with and implement the city's storm coordinated with metropolitan sewer system plans. water management plan (SWMP). Natural drainageways, streams. and ponding and other • Utility systems within the City of Chanhassen holding areas for surface water run-off should be should be based upon: publicly preserved. Gutters, catch basins, and storm sewers should conduct surface water run-off 1. Maximum protection of health and to the natural drainageways and away from — safety; building areas. 2. Adequate and efficient service; 3. Fair and equitable distribution of • Utilities such as cable, electricity, telephone and benefits and costs. natural gas must be available at the time any 4. Utility systems will be coordinated development is open for occupancy. Whenever with the installation of other public possible, those services shall be underground. All infrastructure improvements. underground utilities should be installed at the same time to reduce installation and maintenance • All utility systems shall be installed in newly costs. Where overhead utility lines are necessary, developing areas before or at the time of their design and alignment should be compatible development. This allows for more economical with existing, proposed or probable development of utility installation, reduction of damage to streets, the area and the protection of natural resources. less erosion and a reduction of public - improvement installation costs. Any structure to be inhabited should provide the following: - • All public and private utilities within the city should be installed in a coordinated manner and in - A continuous supply of potable water. 14 COMPREHENSIVE PLAN UPDATE 1998 - Sanitary facilities and an approved • Non-urban land uses should be served by sewage disposal system. properly constructed and operated septic tank and _ well water systems. Heating adequate for healthful and comfortable living conditions. GOAL - Hot water for domestic use. To recognize the often unique circumstances of unserviced lots located both inside and outside of - Electricity for lighting and equipment use the MUSA line located in subdivisions that were — in the dwelling. platted prior to 1987 under ordinances that allowed 2 ' acre lots minimums. - Within the urban service area, water service and hydrant outlets shall be POLICIES provided for fire protection. The spacing and design criteria of these systems shall • These lots were, for the most part, developed conform to city ordinance and shall serve relatively recently and have new on-site sanitary to improve or maintain the existing fire and water service built to high standards. The City insurance rating. will, therefore. seek to ensure that these subdivisions are not unduly burdened by new local GOAL utility lines and related assessments. The City Council should seek to adopt sensitive policies for To provide for reasonable and environmentally trunk line improvements as well. - safe development at low densities experienced in areas located outside the MUSA line consistent • The City will utilize policies listed above to ensure with the City's land use goals and policies. the proper maintenance and functioning of these POLICIES systems. Property owners must understand that proper maintenance and upkeep of on-site systems is their responsibility. At such time as on-site •The city will establish an ongoing inspection systems begin to fail the City will work with system and permit issuance program for septic residents to install utilities to these subdivisions in a systems consistent with the guidelines and coordinated, comprehensive manner. Since onsite regulations stated in the local sewer plan. systems tend to fail at different times at different lots in a subdivision, residents should be aware that • The Chanhassen sewer plan will indicate utilities may need to be provided before a acceptable locations, ordinances and design consensus is achieved from all impacted property - standards for septic tank systems. owners. Homes developed since 1987 in the Rural Area are equipped with alternate drainfield sites. If • The city shall provide informational assistance to problems occur with the primary site, the City would - septic tank users on how to maintain and operate look favorably on allowing use of the secondary site on-site disposal systems. if it is still functional. - • The pumping of sludge from septic tank systems will be discharged into the metropolitan disposal system only in such locations as may be designed by the city and the MCES. • The city shall forbid sewered urban-type development in designated rural service areas which lie adjacent to existing or proposed sewer interceptors. 15 CITY OF CHANHASSEN 2020 COMPREHENSIVE PLAN CAPITAL INVESTMENT PROGRAM 1998 - 2020 Parks and Recreation pages 1 - 4 Water Distribution pages 5 - 11 Sanitary Sewer pages 12 - 15 Stormwater Management pages 16 - 22 — Roads, Community Facilities and Totals pages 23 - 26 1 7 C H A W P4L 5) 42; ,,Q P4P-. L L at --i . : i ! . 1 . 0 CD - 0 ---1---- ED 0 CD (7. C. C. • 0 0 0 C. 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' I I ' 1 1 ' i ! ' I i i 1 i 1 I I . I I ; I 10 oI l01 0 a N • I8 �"'� I I ! � I � I � � g � g CD �I � co N ' , I Cq M C�, .O I - I I i ;feI _ CL Ca 2 r. 0 °tf WI i;ih ! Up ' ax � roE � ¢ c c, I j ' � Q a) o ¢ Ic' a �n o >, CU 2 �`o m I co y` 2. !W) _ cxc„vQ cvCC > -c, E c cI g g r 0 (II ilIzIbI1!& C ca a I2 0 m� c m H _ 0 co m y �,T m m is c O J .Z = m L r Y ' —I a) o o olol� S m m E x m in .9 'a E- Q o U Q O C a) m r r r,r d o c c m i I H , Z CA a U_._0.-J:_ a'1_F - I- r- O7 a a a a Li LLia1xl I _.._10�....:..._._..._.._'. COMPREHENSIVE SEWER POLICY PLAN CHANHASSEN, MINNESOTA MAY, 1998 - NANCY MANCINO MAYOR STEVE BERQUIST COUNCIL MEMBER - MARK ENGEL COUNCIL MEMBER MICHAEL MASON COUNCIL MEMBER - MARK SENN COUNCIL MEMBER DONALD ASHWORTH CITY MANAGER - KATE AANENSON PLANNING DIRECTOR CHARLES FOLCH PUBLIC WORKS DIRECTOR ANITA BENSON CITY ENGINEER BONESTROO, ROSENE, ANDERLIK& ASSOCIATES, INC. ENGINEERS AND ARCHITECTS ST. PAUL/MILWAUKEE May 29, 1998 — Honorable Mayor and City Council City of Chanhassen 690 Coulter Drive, P.O. Box 147 — Chanhassen, Minnesota 55317 Re: 1998 Comprehensive Sewer Policy Plan — City Project PW347A Our File No. 39362 Dear Mayor and Council: Transmitted herewith is the 1998 Comprehensive Sewer Policy Plan for the City of Chanhassen. — This plan compliments the sanitary sewer portion of the 1998 Comprehensive Plan. The report incorporates review comments and changes in land use densities received from the City Staff. The plan was prepared in accordance with Metropolitan Council guidelines as outlined in the Wastewater — Treatment and Handling Policy Plan. The trunk sanitary sewer system is presented on Figure 7. Data regarding population, land use, and sewer design has been incorporated into the text and appendices of this report. A capital improvement program for the phased construction of the completion of the trunk sewer system has — been developed. We would be pleased to discuss the contents of this report and the findings of our study with the City — Council and Staff or other interested parties at any mutually convenient time. Respectfully submitted, — BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. Phil Gravel LPG:kf I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. L. Phillip Gravel III, P.E. Date: May 29, 1998 Reg. No. 19864 TABLE OF CONTENTS PAGE NO. LETTER OF TRANSMITTAL 1. TABLE OF CONTENTS 2. EXECUTIVE SUMMARY 4. I. TIER I- SUMMARY OF SEWER ELEMENT OF COMPREHENSIVE PLAN INTRODUCTION 5 FIGURE 1 -LOCATION MAP 6. TABLE 1A- HOUSEHOLD AND EMPLOYMENT PROJECTIONS 7. TABLE 1B -PROJECTED FLOWS BY INTERCEPTOR 7. II. TIER II-LOCAL COMPREHENSIVE SEWER POLICY PLAN SCOPE OF STUDY 9. TOPOGRAPHY 11. SANITARY SEWER DISTRICTS 12. TABLE 2 - SANITARY SEWER DISTRICTS 12. FIGURE 2 -MAJOR SANITARY SEWER DISTRICTS 13. LAND USAGE AND POPULATION 14. GENERAL 14. LAND USAGE 15. FIGURE 3 -LAND USE GUIDE PLAN 16. TABLE 3 -LAND USE TYPE DESCRIPTIONS 17. — TABLE 4 -APPROPRIATE LAND USE SUMMARY 18. POPULATION 19. FIGURE 4 -POPULATION PROJECTIONS 20_ DESIGN CRITERIA 21. WASTEWATER FLOWS 21. TABLE 5 -UNIT AND AREA WASTEWATER FLOWS 22. TABLE 6 -WASTEWATER CHARACTERISTICS 22. TABLE 7 - WASTEWATER FLOW PROJECTIONS 23. TABLE 8 - MAJOR WASTEWATER GENERATORS 23. INFILTRATION/INFLOW 24. SYSTEM DESIGN 24. FIGURE 5 - PEAK FLOW FACTOR 25. 1998 Chanhassen CSPP 2 SYSTEM DESCRIPTION 26. GENERAL 26. — METROPOLITAN FACILITIES 26. INTERCOMMUNITY FLOWS 29 CHANHASSEN SANITARY DISTRICTS 30. MINNEWASHTA DISTRICT 30. NORTH DISTRICT 30. LAKE ANN DISTRICT 30. LOTUS LAKE DISTRICT 30. _ LAKE RILEY DISTRICT 31. LAKE LUCY DISTRICT 31. UPPER BLUFF CREEK DISTRICT 31. _ LOWER BLUFF CREEK DISTRICT 32. LIFT STATIONS 32. FIGURE 6 -LIFT STATION LOCATIONS 33. — COST ANALYSIS 34. TRUNK SEWER SYSTEM COSTS 34. — TABLE 9 -TRUNK SEWER SYSTEM COST SUMMARY 34. CAPITAL IMPROVEMENT PROGRAM 35. -- TABLE 10-TRUNK SYSTEM PHASING 36. SEWER CHARGES 37. — TABLE 11 - REU SUMMARY 38. TABLE 12 - SEWER HOOKUP CHARGE SUMMARY 38. ON-SITE WASTEWATER DISPOSAL FACILITIES 39. GENERAL 39. SUMMARY AND RECOMMENDATIONS 40. APPENDIX A- AREAS — APPENDIX B - AVERAGE FLOWS APPENDIX C -DESIGN FLOWS _ APPENDIX D - PIPE CAPACITIES APPENDIX E- COST ESTIMATES APPENDIX F-LIFT STATION DATA — APPENDIX G - MUSA EXPANSION INFORMATION FIGURE 7 - CITY OF CHANHASSEN SANITARY SEWER TRUNK LAYOUT 1998 Chanhassen CSPP 3 - EXECUTIVE SUMMARY This report was prepared to review the existing and future sanitary sewer needs for Chanhassen. This report revises a previous report dated February, 1993. With the present steady growth of the — City, the continued need for a periodic comprehensive review of the system's future needs and costs is important. — The City is divided into eight sanitary sewer drainage districts based on service areas. These districts are further divided into subdistricts. Of the eight sewer districts, three contain the majority of the land in the City: Lake Ann District, Upper Bluff Creek District, and Lower Bluff Creek District. The report presents the necessary new trunk sanitary sewer facilities to serve the undeveloped — property in these districts. Timing of the proposed improvements is largely dependent on the timing of new developments. Timing used for this report is consistent with the information in the Comprehensive Plan. An economic analysis was completed as part of the report. The sanitary sewer area charge system that was previously developed is proposed to remain. This charge system has developments pay for future sanitary sewer system improvements. The area charge was established by estimating the costs for all trunk sanitary sewer facilities (lift stations, sewers, and forcemains) and spreading these costs out over all undeveloped property based on land use type. This report should be revised again in five to six years to reflect changes in development patterns and land use. The report serves as both the sewer element of the public facilities plan for the Metropolitan Council and the Comprehensive Sewer Policy Plan (CSPP) for Metropolitan Council Environmental Services (MCES). The first section of the report (with references to other sections) will be reviewed by the — Metropolitan Council. The entire document will be reviewed by the MCES. Using Metropolitan Council terminology, the first section of the report can be referred to as Tier I and the remainder of the report can be referred to as Tier II. 1998 Chanhassen CSPP 4 I. TIER I - SEWER ELEMENT OF COMPREHENSIVE PLAN INTRODUCTION The City of Chanhassen is located in Carver County in the southwestern portion of the Seven County — Metropolitan Area (see Figure 1). Chanhassen is a growing community, which incorporates residential, commercial, and industrial areas providing the City with a sound economic base. The _ City has an adequate transportation system, including several state and county highways. Chanhassen has experienceci Steady growth over the past 30 years when the old town of Chanhassen merged with the surrounding township. Population has increased from the 1967 population of 4,112 to the 1997 estimated population of 17,571. The Metropolitan Council has projected that the City will grow at an average annual rate of approximately 860 people per year, from a 1997 sewered population of 16,000 to a 2010 sewered population of 27,700. These projections are from the 1998 — Wastewater Treatment and Handling Policy Plan by the Metropolitan Council. The estimated saturation population for the City, is approximately 36,000. The current estimated ultimate population is over 8,000 people less than the estimate in 1993. Municipal sanitary sewer service was first provided within the original City of Chanhassen in the — 1950's. The original service area consisted of the area southwest of Lotus Lake and included two lift stations. The Chanhassen wastewater treatment plant was located near the SE corner of Dakota — Avenue and Highway 5. The plant was abandoned in 1969 and flow was directed to Eden Prairie with a lift station, which was subsequently phased out with the construction of major interceptors in the area. The purpose of this report is to provide the City of Chanhassen with a Comprehensive Sewer Policy Plan that will serve as an inventory of existing facilities and a guide for the completion of Chanhassen's trunk sanitary sewer system. With the proposed expansion of the MUSA line, the City is planning for possible future growth beyond its existing sewered boundaries. This report has proposed a trunk system that will service this larger future area. 1998 Chanhassen CSPP 5 T110/1 CITY OF C'TiA4UE{ BURNyAv05 OAK GROVE O3F:rS T BETHEL INW(CJ i RANKANOKA COUNTY • COLUMBUS ANDOVER MAN LAKE CgCt . PORES,' LAKE NEW SCANCA FOREST LAKE {y N -ASSAry11 (fvri( 11 7. OA"'ON LINO LAKES 4��—� COON RAPIDS ROGERS CE iERVILLE CHAMPL:N BWNE H000 MAV HANOVER LEXINGTON CIRCLE P'NEs WASHINGTON COUNTY lilr 0 20.000 40.000 GREENFIELD CDCDRN4 MAPLE GROVE OSSEO MOUN.S SHOREv EW VIEW NORTH rf9ROOKL"N ?ARK RITE .. t $TILLwA:E Scale ;n feet KFORD OAKS LAKE _� `EN NC PIN COUNTY BROOKLYN FR OLE"' CENTER NEW vAD.,Als noA CRANI BR:cH •N .HaE:GM-S LORETTOOM ..RYS �� wu5 7 NEW /y TILLWATER INDEPENOENC4 MEDINn Si ""```"```"YYYYYY PLYMOUTH SPE i LITTLE 4 RCSEYILLE U" NORTH MAP_E PLAN P GOLDEN lir �a EW0pp LAKE BAY.C• I.I.:"9"c 7 VALLEY E ELAA'J RAMSEY COUNTY WEST mj WATERTOWN MINNETRSTA &l`, fMINNETONKA `LOUIS It.in SAINT PAUL LAKE..A.v r • LYM' LAKE +CLCOD WATERTOWN * f PARK •MINNEAPOLIS � DEEPHAVEN HOPKIN' 63 t 40.1 w00DBURY ST. CROIX E lb t4t_ -irt _Q. BONIFACII, / WEST ^� MAYER •H• • EDINA PA'''. SOOT k GERMAN � ,/Q AIRPORT MENDOTA 5T• NE - RT low 1� VICTORIA - HEIGHTS SJNF:SH MAL' CAMDEN WAC0N1A 4 UKETOWN WAC•NN EDEN PRAIRIE S. PAUL PAR CARVER COUNTY CHASKA BLOOMINGTON INVeR GROVE _ N HEIGHTS CC-TASE GROVE DEVMAR• AMEE_RICA DAKOTA COUNTY C CNASKA CARVER JACKSON SHAKOPEE ,e---""N__ / NORwOCD COLOGNE DAHLGREN BURNSV!LLE/ RI JAC AMERICA BENTONAPPLSAVAGE p PRIORVALLry RCSEMOUNT NMINCER ' 10U151lILLE LAKE A9URC HASTLNGS 4r — HAI4COCK SAN FRANCISCO C'JCOATES U SAND CREEK SPRING PARK CREDIT LAKEVILLE EIRE VERMIQ N MPAIARSHAN ULr� RIVER SCOTT COUNTY VERMILLION ST. LAWRENCE JORDAN FARMINCTON BELLE PWNE 'v NEW MARKET ❑ 0NBW TRIER S:N(ELEY BELLE PLANE HELENA CEDAR LAKE EUREKA CASTLE RGCK HAMPTON NEW MARKET M:ESYL_: NEW PRACU C=t3 HAMPTON DOUGLAS /(1 ELKO RANDOLPH RAY PH CREE.WALE WATERFORD SCIOTA LOCATION MAP ki Bonestroo Rosene •— CHANHASSEN, MINNESOTA FIGURE 1 Associ k s 1998 InAssociates COMPREHENSIVE SEWER POLICY PLAN =9_'.:9=c2\.x`.7.:1'?=\`,35:,,,_ • MAY 1998 COMM. 39362 A layout of the trunk sanitary sewer system including all relevant data is presented on Figure 7 at the _ back of the report. Preliminary cost estimates have been prepared to establish a basis for updating the Capital Improvement Program. The report has been prepared in accordance with the Metropolitan Council's guidelines for local Comprehensive Sewer Policy Plans. - This section provides a summary information contained in the sewer element section of the - Comprehensive Plan on a number of different aspects of Chanhassen's sanitary sewer system. A brief synopsis of the results is presented below: Table 1A. Household,Employment, and Flow Projections Estimate& Estimated No. Estimated Sewered of Sewered Estimated No. Sewage Flow Year Population Homes/Units of Employees (MGD) _ 1997 16,000 5,800 8,000 2.10 - 2.40 2000 17,450 6,100 9,450 2.50- 2.70 2010 23,850 9,100 11,820 3.50-3.90 - 2020 33,600 13,200 12,700 4.50 - 4.90 Ultimate 35,400 14,160 13,000 4.80 - 5.50 - Table 1B. Projected Flows by Interceptor(MGD) _ Year Shorewood II Int. Lake Ann/Red Rock Chaska* 1998 0.12 2.3 _--_ 1999 0.12 2.4 ---- - 2000 0.12 2.5 ---- 2001 0.13 2.7 ---- - 2002 0.13 2.9 _--- 2003 0.13 3.0 ---- - 2004 0.14 3.2 ---- 2005 0.14 3.3 ---- 2010 0.15 4.2 ---- - 2015 0.15 4.7 0.83 2020 0.16 5.3 0.95 - * Possible 1998 Chanhassen CSPP 7 Note, the projections in Table IA are based on 1998 Metropolitan Council Projections. Flow projection assumes 300 to 350 gallons per unit per day and approximately 50 gallons per — employee. Figure 7 at the back of this report is a map showing Chanhassen's trunk sewer service areas. Figure 2 of this report shows the major sewer districts including interceptor service areas. Table 10 shows trunk system phasing through the year 2010. Figure 3 is the City's Land Use Plan. Appendix A includes a summary of areas within each service district. Appendix B presents projected flows based on the areas in Appendix A. The projected flows in Appendix B are based on ultimate usage and contaf;l conservative safety factors to be used in sizing pipes. Infiltration and Inflow (I/I) and Individual Onsite Sewage Treatment Systems (ISIS) information is addressed in the Comprehensive Plan. Refer to that document for specific information on I/I policies, reduction measures, and programs and ISTS management. The City's ultimate population is based on land use and density information provided by the City's Planning Department. The total proposed ultimate sewered area served by Chanhassen's sewer system will be approximately 13,300 acres. 1998 Chanhassen CSPP 8 II. TIER II - LOCAL COMPREHENSIVE SEWER POLICY PLAN SCOPE OF STUDY Under the 1969 Metropolitan Sewer Act, local governments are required to submit a comprehensive sewer policy plan (CSPP) describing service needs from the Metropolitan Council Environmental Services (MCES). The CSPP provides detailed sewer system engineering information. Similarly, the 1976 Metropolitan Land Planning Act requires local governments to prepare a comprehensive plan and submit it to the Metropolitan Council to determine the plan's consistency with the — metropolitan system plans. The local comprehensive plan is to include a sewer element covering the collection and disposal of wastewater generated by the community. The sewer element of the Comprehensive Plan includes general information obtained from the CSPP. The Comprehensive Sewer Policy Plan for the City of Chanhassen deals primarily with the conveyance facilities required to collect the wastewater and transport it to the Blue Lake plant. The local elements of conveyance are the sewer services, laterals, trunks, manholes, lift stations, forcemains, and all correlated appurtenances associated with the collection and transportation of — wastewater. The sewer laterals and service lines are governed to a large extent by platting as the land is developed. Therefore,those facilities cannot be accurately determined and must be excluded from _ a study of this type. However, trunk sewers are largely dependent on topography, soil conditions, physical features and manmade barriers. This study is concerned with the trunk system, which includes all gravity flow lines 12 inches in diameter and larger and other facilities (such as lift stations) which are a part of the trunk system. Since the sewer trunk design determines the ultimate service area for the system, it is essential that an overall trunk plan be available as a guide for future development. Such a plan should be flexible enough to respond to approved planning and development patterns which are experienced by the City. This plan updates the previous plan prepared in 1993. Periodic review with updating is _ required. 1998 Chanhassen CSPP 9 Preparation of this report included a review of the 1993 report with specific emphasis placed on the undeveloped area south of Lyman Boulevard. An outline of the steps involved in preparing the report is presented below: 1. Review and determine drainage district boundaries for trunk sewers based on topography. 2. Relate probable land usage to design flows of wastewater anticipated ultimately from all parts of the study area. 3. Review and establish generally the sewer trunk routing and sizes. -0u 4. Investigate those available alternatives which might affect the feasibility or economy of segments of the system. 5. Examine the near-term and long-term future requirements relative to trunk sewer extensions to provide for orderly, well-planned growth as outlined in the Comprehensive Plan. 6. Estimate the approximate cost of remaining trunk facilities and review the existing trunk sewer change program. 1998 Chanhassen CSPP 10 TOPOGRAPHY The City of Chanhassen is located in the southwestern metropolitan area. The City contains nine major lakes, six of which are entirely within the City's borders. These lakes provide a valuable — resource and contribute to the City's identity. Chanhassen also contains a large number of streams and wetlands, which provide a habitat for fish and wildlife. The City's terrain consists of rolling hills and bluffs. Soils in the city generally consist _ of soils of the Hayden-Lester-Peat association. Ground water elevations within the soil types are generally elevated. The City has aggressively worked to maintain the significant topographical features as development has occurred. Bluff preservation, wetland protection, and open space corridors are part of the City's — vision for guiding development. Because of it's topography, sanitary sewer service is somewhat more complicated than many communities. The rolling terrain and high number of wetlands and lakes limits the sewer alignments available and requires the use of numerous sanitary sewer lift stations. 1998 Chanhassen CSPP 11 SANITARY SEWER DISTRICTS r There are eight major sanitary sewer districts in the City, each defining the limits of service for a separate trunk system. These districts are further subdivided into smaller subdistricts that were used to develop design flows and to determine cumulative design flows in the various sewer segments. The districts used in this report are generally the same as those used for the 1993 report. The major sanitary sewer districts and their corresponding prefix abbreviation are given below in Table 2. The Districts are further described on Pages 30-32. Table 2. Sanitary Sewer Districts Sewer District Abbreviation Minnewashta MW North NO Lake Ann LA Lotus Lake LL Lake Riley LR Lake Lucy LL Upper Bluff Creek BC Lower Bluff Creek LB The boundaries of all the major districts are shown on Figure 2. A summary of the areas and the existing and anticipated residential units in each major district and subdistrict is presented in Appendix A. A description of each district is presented later in this report. 1998 Chanhassen CSPP 12 ... ••••1 : irliAPPV:i i'li4NitW:tilqjl . •;.;:gz-':.'..7-4 --..---,- ..:-:...;.-. i.e.,.. . :.. • . ,, •.v., • — --! ; — ,04140'n'::,3. 'SY'-::A..F..r,r . ..m .:4:"^*.-:,-:1--1 --J-'64-tirP;-* LI=L1-- ' •--.:1 ••.':::= t . '''%.*-•."4',- -.MI •.•,:h. \1p„ ..„ th r- ...-,--....-`1 -r''-- -..t",::::z 1,,,,t,.,•11:4.4• .'i cu .., ;, q.....- •-•• --t----.. :4'7 ,,.. . . —• . ..„. • — -4,•• : • .. -6-• 7,_ ;14, .......,Rs_.‘ ,•41,-.11- - ss- •,,,...•„ ...• VII 0..,...s, . . _ • C.c. 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R-Ilk I. -,.z,:A.• qv zglio,•14-..,,-- - 4-...t.;:-A •:-..,-A.,,,..z.iac..w•-• .-,-- ...-.: ;.•;• ..- • .,. • '.;••••:•-•,, .-::::.k:-':'",/'!'is.i,,,,tt t•1 g s i• ,,. .,..i-c ''.i...'?,«':.:3atlf&Ili 01,11/„7, 4,„•., ,.......„ ..„,,,,,....„...„..,,,,......,• . ...„, .,,,,.,,,,,,..,...,.. ., .... , .:.„.. . _,.....„ *":.-",::,-tr-W.•;,-,4Wf,,:"4‘ze lit,i1.: -"` ' Da 1 Ili, - - — -.••:.•-.:0.4.;:-."'>,,,,">.;4:-.,.• ;LUZ.: neti,-..e.;:. -4,00 pa,`"Ork:4-_ 11 I WO I ft.- '-%-ii :•........,..-K.-.?-••.` - sallah,•4,.. ' ,ii 1 ..- , t . if e.s.:"-in,e,-s---•A ,/,....!--,.•r...z.!:.,.:6_, . pc,...,---- :., ct-e;!: z.-r.:-.;:,sf: ig--4,7, 1 1 p\:„et___47-1,_• wils91 5e: 4.kSIVIV 41110111 •0 r - _ CI TY OF - % II'j ike'-'17,1a --.-4--lx ,-:4.-sw.,i;,-- = • ,_ lirt ; . ,...., „... 11111 . - ., - . 1 marr "1 : 1 1 / ,.., ...:-...., ... CHANHASSEN k 3 ---Jitk I '/-4 I IffilW • -. Think Sanitary Sewer System . . . . -...„ , . , .. asmqpire, 2 Ali soh -••-••-- •-1-4:---...••:•'' NW - )--,\ .....• , , -,....__,-, . : ‘. ...- .—_. • 1.___----- , _____,, - I emu .*.., ••••• -.....%. „133_-_,„ ,.... 1,-_ • ...,,,,,•i,. • 1 - , ! !, -.., •._..., .___,. ... . • ,_:. Apai 1996 , ./..... % . . ..,...,._ . 1 / • '.. •' .1.1 ,.• • -. .._ . r LB-3 , . s( 1......- 1 r I i : 1 \ .y....r.y.... • . . XPeD - . ' ... ',..s 7 • P1126esecl UR Stool --- — i le%Mil Pacetran /1 PP11pmect Tnom Sews . 41,,4451.,9 Trona Se., . er Dana Sanaa-, I Lira Osinet 5a.er-an, 1 -— moo c , LAND USAGE AND POPULATION GENERAL The sizing of sanitary sewer facilities is dependent on the hydraulic capacity required for each part of the system. Municipal wastewater generally is a mixture of domestic sewage, commercial and industrial wastes, ground water infiltration, and surface water inflow. With proper design and construction,groundwater(infiltration)is reduced to a minor percentage of the total flow and surface water (inflow) is eliminated. Hydraulic discharges which must be handled depend to the greatest extent upon the types of development and the population densities which are ultimately achieved. The City of Chanhassen has experienced a steady growth rate over the past several years to reach a 1997 population of 17,571 and an estimated 1997 sewered population of 16,000. This growth trend is expected to continue with a sewered population of 27,000 projected for the year 2010. The ultimate saturation population in the City is projected to be 35,000 to 37,300 (see Figure 4). Since properly designed and constructed sanitary sewer pipes have extremely long life expectancies, it is reasonable to assume that near saturation population will be reached in the City before replacement becomes necessary. Therefore,the preliminary design of trunk sanitary sewer facilities in this report is based on saturation conditions throughout the City. 1998 Chanhassen CSPP 14 LAND USAGE The Land Use Guide Plan for the City of Chanhassen that served as a basis for the development of the sanitary sewer trunk system was developed by the City Planning Department and is presented — in Figure 3. In order to estimate the volume of wastewater flow anticipated, the Land Use Guide Plan was used to divide the City into the land use types which are summarized in Table 3. The total _ estimated acreage for each land use type as listed in Appendix A and is summarized in Table 4. The acreage in Appendix A and Table 4 is measured in gross developable acres which is the total acreage reduced by the undevelopable areas. Undevelopable areas include major street right-of-ways and wetlands. The gross developable acres include small parks and street rights-of-way. Areas were determined using the City's Land Use Guide Plan. Lot counts and tabulation of proposed residential units were used in determining expected wastewater flow from existing residential developments. 1998 Chanhassen CSPP 15 .... MUSA EXPANSION low ' •- I. i t. . .itt i..i\'ii,,ilk..1.740.i‘ •ii. .. 1 f: • • '•ill..* ' Ilirk•-•••.• '''.. •:I.' i.i t. • • '•• Ilm 1ilitIralc ',,i:;3 - - ,,,_ - - ",.- ,• -.." •-, '4.7.i..1 r i :i. _ .-i _ .. . . • ..„ _ SI -- .,... ,.,-..--,...... , .1 :: 1:-.r....i•::\., .. ... . ........„ J '!•ileid . ' t- , ._ . ...,. . :.., , f-1-. -7'''''.."-!•. !ilit 111. I PAO. ...': - a.........:,:ij,•4 • i-----,4._ .... -,7.f 1 • --- - 4:- I- !ii I] •'.'.c' . ..,,..,••:...1 .'' . . - I(F..-t--...).:Th__,- ,.. .. :.'-i•-..---4 Mom t ,1 ., •••:.11• ‘i... .S.‘• !I !-r ..'... •f' : . .... ...•`, -/ '-..- •..- -2.• • ''' i' ;• ' . ---7..........,Sti.1;7 7...' ..__ Lt. 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'-. .•- 1 ',. .--_tr..' --ge,':-:Aa•--,,.._%,-.. -.:; • ..,._1-•--=-...- , ....-. i ..5.---TP•• •-•:;.-:-• ,--V•:- -4 .-Pr.-• ;----- - i4... .e.....r= • .:. r , . -'••-••••,--- — \_ . . I 143-4".--.—.4.. • • '''. •-• -••••- ,,- -:-;±. 4 \ ..,.".4.....'.7";; • r••.: '::.:•• •••• ?, . ( ,.,. \ l• . '. ! ;...1 ,.'.. m..:-,- - rt 1- - • - , . .:- • .c-... 4. ,. . _ .... - .,,,,..,ri....,.. . ••":...4zalp-18,1•;.:- .7";..Aikt..44. !IE.'. :.r.":. ..g.• 41.'1-Z104.0i -..-.70f.' --'','"-1:-:.:'I ::''.:.g i ",f-..:..--c,;-4...if••-..%,--...o..: II .- .-. •-----7.-- stkw..frostaaa •-;,- .---.:.v • ,..-.•_,..-iziretss-14,--:, — ... ••••.. • --1:-.1,1. 0•-•.1.1‘,.„. ..-..- •••••••••••••• ...''.• •-•-:.•_ Attql•-•-• --- •-.: - . . ...• — • • .- • ... . . • . - • • . • • • .. .: ... — i _ 1 . , ._ 011"-4111111PPaw. - . —4411111r MIN Hwy. 212 corridor MUSA 2000 — MUSA 2005 MUSA 2010 A _ MUSA 2015 r..2i.ms i:-,,,-„,**q MUSA 2020 Table 3. Land Use Type Descriptions 1) Residential -Low Density(LD)-Single family residential development at a density range of 1.2 -4.0 dwelling units per acre. — 2) Residential - Large Lot (LL) - Large lot single family residential developments platted — prior to 1987. Minimum lot sizes are 2.5 acres with an average density of 1 unit per 10 acres. Serviced by on-site sewage treatment systems. 3) Residential Medium Density (MD) - Mix of medium density single family clusters, townhouses, smafer multiple family structures and occasional apartment structures at a density range of 4.0- 8.0 dwelling units per acre. 4) Residential High Density(HD) - Variety of high density buildings as well as a controlled mixture of lower density residential classifications at a density range of 8-16 dwelling units per acre. 5) Commercial -Includes limited,neighborhood,roadside, and general business,community and regional shopping centers. 6) Office/Industrial - Includes general industrial and general office usage. 7) Public/Semi Public-Includes churches, schools and public service facilities (fire stations, libraries, utility structures, etc.). 8) Parks/Open Space-Includes all City and County park land as well as some golf course areas, etc. 9) Mixed Use -A limited area near the City's future Highway 212 consisting of commercial and high density residential. 10) Undevelopable (Undev.) - Includes floodplains, wetlands, railroad, and major high- way (Highways 5, 7,41, and 212) rights-of-way, and major lakes. 1998 Chanhassen CSPP 17 Table 4. City of Chanhassen Approximate Land Use Summary • Use Acres Percentage Residential Large Lot 1,146 8.8 Residential Low Density 5,206 39.8 Residential Medium Density 498 3.8 Residential High Density 202 1.5 Commercial 206 1.6 Industrial 1,394 10.7 Park/Public/Wetland 3,663 28.1 Undevelopable 743 5.7 Total 13,058 100 The information in Table 4 above is based on information obtained for this report. The acreage's listed were scaled from the current land use map and are only an approximation. The total acreage of 13,058 acres excludes lakes,ponds, and major right-of-ways. 1998 Chanhassen CSPP 18 POPULATION Population projections and an ultimate population estimate for the City of Chanhassen were developed for evaluating the trunk sanitary sewer system as well as other planning efforts. Population projections are shown both in tabular form and graphically on Figure 4. The population data are based on Census figures and Metropolitan Council projections. Because of the uncertain growth patterns for a rapidly growing community like Chanhassen, Figure 4 also shows a shaded range of projected populations. The facilities described in this report are designed to serve the projected ultimate saturation population of approximatelf35,000 to 37,300. Actual growth rates will affect only the timing of trunk sewer construction and not the actual design of the system. 1998 Chanhassen CSPP 19 — 45,000 CITY OF CHANHASSEN — -__ — POPULATION PROJECTIONS - METRO COUNCIL, ally YEAR PROJECTIONS PROJECTIONS 40,000 1960 3,167* -- 1970 4,879* -- -- 1980 6,359• -- 1990 11.732* -- 1995 15.588 -- 35,000 1997 17,571 -- 2000 18.600 20.500 TO 21.900 ; , 2005 22,100 24.000 TO 25,500 2010 74,900 26,800 TO 28,100 � / 2020 34,400 35,000 TO 37,300 / - 30,000 ' = CENSUS DATA / / / I — z City Projected // 0 25,000 Population; Range / I— ' — Met Council 20,000 C,..1.7; / Projected CL j I j / Population 15,000 / / 10,000 5,000 ' l l • -------Y1 I - O • ; 1960 1970 1980 1990 2000 2010 2020 YEAR POPULATION PROJECTIONS TA Bonestroo Rosene • — In CHANHASSEN, MINNESOTA FIGURE 4 Anderlik d Associates 1998 COMPREHENSIVE SEWER POLICY PLAN — 393\39303\39303S\39303SF4 MAY 1998 COMM lOIA, DESIGN CRITERIA WASTEWATER FLOWS Anticipated wastewater flows from the various subdistricts were determined by applying unit flow rates to each of the land use categories. Wastewater flow rates are presented in Table 5. — Table 5 also gives the unit rates for the existing residential developments and presents area flows based on gross developable acreage. The population densities are in accordance with our discussions with City Staff as well as our experience with other communities in the Twin Cities area. The estimated unit flows are in accordance with standard engineering practice and are generally — considered conservative. Average wastewater flows under saturation population conditions, using the flows in Table 5, are presented in Appendix B for each of the sanitary sewer subdistricts. These are projected average — flows from each area and can be summed for any point to which they are tributary. Large lot(estate lot)plats have been included in the calculations and projected flows. For the area north of Lyman Boulevard, it is estimated that large lot areas could be subdivided to a density of approximately 1.8 units per acre. In the areas south of Lyman Boulevard, densities for large lot areas — are assumed to remain at 2.5 units per acre (per City Planning Department projections). 1998 Chanhassen CSPP 21 Table 5. Unit and Area Wastewater Flows Persons/ Gal/Cap/ Gal/Unit/ Units/ GalsJAcrel Land Use Type Unit Day(GCD) Day (GUD) Acre Day (GAD) Residential: R-LD 3.2 100 320 2.9 950 R-MD 2.5 100 250 6.0 1,500 R-HD 1.7 100 170 10.0 1,700 Commercial/Industrial 1,500 Public Use/Semi Public 700 Parks/Open Space 250 • The City's wastewater characteristics are presented in Table 6. The current total wastewater flow in the City is estimated at 132 gallons per person per day, which includes an estimated 10 gcd of infiltration and inflow (I/I) and a base flow of 122 gallons per capita per day(gcd). Per capita flow includes commercial and industrial flow. Table 6. Wastewater Characteristics Item Design Existing Per Capita Flow 121 to 136 gcd 121 to 140 gcd * Per Capita in 10 gcd ** 10 gcd ** 5-Day BOD 200 mg/1 ** Not Available Suspended Solids 220 mg/1 ** Not Available * Includes commercial, industrial, public flows. Does not include I/I flow ** Estimated 1998 Chanhassen CSPP 22 Wastewater flow projections for the City are presented in Table 7. These flows include commercial and industrial flows. One column is based on Metropolitan Council projections and one column is based on City projections. Table 7. Wastewater Flow Projections Met Council Est. City Est. Est. Sewered Avg. Wastewater Average Use Year Population Flow (MGD) Flow (MGD) 1997 16,000 2.40 2.3 2000 17,450 2.65 2.6 2010 23,850 3.63 4.4 2020 33,600 4.77 5.4 There are a number of industries in Chanhassen whose average daily sewage flow exceeds 10,000 — gallons. These industries and the respective average daily sewage flows(based on 1997 water usage) are shown below in Table 8. _ Table 8. Major Wastewater Generators Pillsbury 120,600 gallons/day Redmond Products 54,100 gallons/day — Rosemount, Inc. 48,000 gallons/day Byerly's 15,400 gallons/day — Country Suites 14,400 gallons/day The Press, Inc. 14,300 gallons/day _ Chanhassen Dinner Theater 13,000 gallons/day Instant Web 12,500 gallons/day Victory Envelope 12,300 gallons/day Browns Standard 11,700 gallons/day Richfield Bank 10,000 gallons/day — Empak 10,000 gallons/day 1998 Chanhassen CSPP 23 There are no known industries in Chanhassen whose wastewater contains toxic substances. At this time, no industries in the City require pretreatment of their wastewater before discharge into the City's sanitary sewer system. INFILTRATION/INFLOW The design flows described in Table 6 incorporate an allowance for an average of 10 gallons per capita per day of extraneous water entering the sanitary sewer system through inflow and infiltration. Also,current design specifications limit infiltration to 100 gallons per day per inch of diameter per mile of pipe. The City has taken steps to reduce and prevent Infiltration/Inflow (I/I). This issue is discussed in detail in the Sewer Element of the Comprehensive Plan. SYSTEM DESIGN The trunk sanitary sewer system must be capable of handling not only the average flows, but also the anticipated peak flows. These peak flow rates can be expressed as a variable ratio applied to the average flow rates. This variable ratio, called the Peak Flow Factor, has been found generally to decrease with increasing average flow rates. The Peak Flow Factors applied in this study are shown and presented in tabular form in Figure 5. They are taken from the September 1960 "Report on the _ Expansion of Sewage Works in the Minneapolis- Saint Paul Metropolitan Area", prepared for the Minneapolis - Saint Paul Sanitary District. These values are generally conservative and are widely used for planning in the Twin Cities Metropolitan Area. The design flows for each segment of pipe are presented in Appendix C. This information includes — the reference points of the segment involved, the average design flow from Appendix B, the Peak Flow Factor, and the resulting design flow. The capacity of the critical segment for each existing _ or proposed sewer trunk is also shown. Appendix D presents pipe capacities for existing and proposed sewers based on the capacity limiting segment for each sewer branch. This appendix also list approximate pipe lengths for proposed trunk sewer extensions. 1998 Chanhassen CSPP 24 co PEAK FLOW MULTIPLES PEAK FLOW AVERAGE DAILY FACTOR FLOW LIMITS (MGD) i co 3.9 C.:2 - 0."8 3.8 :.'9 - 0.23 3.7 0.24 - 0.29 I - 3.5 0.3C - 0.39 I 3.� 0.40 - 0.49 3.4 0.50 - 3.54 I 33 0.6-1 - 0.79 CD - 3.2 0.80 - 0.99 I . I 2 N 1.00 - 1.19 1 3.0 ".20 - 1.4.9 I - • 2.9 ".50 - 1.89 2.8 ".90 - 2.29 0 ' I I 2.7 2.30 - 2.89 O • 2.6 2.90 - 3.49 Lr_ - 2.5 3.50 - 4.19 j i W 2.4 4.20 - 5.09 I 0 2.3 5.10 - 6.39Ct - 2.2 5.40 - 7.99 I c0 W 2.7 8.00 - 10.39 I 2.0 C.40 - 1.49 Q ".9 13.50 - 17.99 z .8 "8.03 - 29.99 ' OVER 3G.0C j co 0 . i w - 0 • I • • i . i - N - O O in O in O - 4 pr) rr) Ni Ni PEAK FLOW FACTOR - SEWER PEAK FLOW FACTORS iii Bonestroo _ Rosene 111 CHANHASSEN, MINNESOTA FIGURE 5 Anderlik b Associates _ COMPREHENSIVE SEWER POLICY PLAN 393\39303\39303S\39303SF5 MAY 1998 COMM. .39303S SYSTEM DESCRIPTION GENERAL The trunk sanitary sewer system layout for the City of Chanhassen is presented on Figure 7 at the back of this report. This map shows major district and subdistrict boundaries,existing and proposed trunk sanitary sewers, lift stations, and forcemains. In addition, sizes of all sewers are shown along with reference points throughout the system. Design flows for each segment are presented in Appendix C. Present capacities and design information for existing and proposed lift stations can be found in Appendix F. Lift Station Locations are shown on Figure 6. ..i, METROPOLITAN FACILITIES The majority of Chanhassen is served by an MCES interceptor sewer system identified at various locations as the Purgatory Creek, Red Rock, and Lake Ann Interceptors. In January, 1992, the MCES granted the City additional capacity in this series of sewers. The City's current allocated capacity is 16.1 MGD. Pending MCES facilities planned for the Chaska WWTP include phasing out the Chaska plant and pumping the flow to Blue Lake. The planned MCES improvements include allocating some capacity to possibly service the Lower Bluff Creek District through Chaska. Specific MCES wastewater conveyance and treatment facilities that serve the City are described below. Blue Lake Wastewater Treatment Plant The Blue Lake Metropolitan Wastewater Treatment Plant is an activated sludge plant. It is located in the City of Shakopee just north of Highway 101. It discharges to the Minnesota River. The Blue Lake Plant provides primary and secondary treatment for sewage flows for communities in a 325 square mile area on the west side of the Metropolitan Area. The current design capacity of this facility is 32 MGD. Limitations on communities flow to the Blue Lake Treatment Plant have been set by the MCES. The flow allowance for Chanhassen for the years 2000 and 2010 are based on population projections by the MCES. _ 1998 Chanhassen CSPP 26 Shorewood II Interceptor The Shorewood II Interceptor is a forcemain and gravity flow interceptor sewer, which flows eastward through parts of Shorewood,Excelsior, Greenwood, and Minnetonka and connects to the Shorewood Interceptor at Town Line Road. There are four extensions of the Shorwood II Interceptor which project southward to the north boundary of Chanhassen. a) A 12-inch diameter reinforced concrete (RCP) gravity flow sewer runs between Christmas Lake and Silver Lake from the Chanhassen boundary to the Shorewood — Interceptor. b) A combined gravity and force main facility flows north from the Chanhassen boundary along Christmas Lake Road through a 15-inch diameter RCP to a lift — station, then through a 9-inch polyvinyl chloride (PVC) pipe and an 8-inch ductile iron pipe (DIP) to the major interceptor. c) A 9-inch diameter PVC force main runs from the Chanhassen boundary at Chaska Road to the west shore of Galpin Lake in Shorewood to the major interceptor. — d) A 15-inch diameter RCP gravity flow sewer runs northeasterly from the Chanhassen boundary at Washta Bay Road along Pleasant Avenue to the northwest side of Mary Lake in Shorewood to the major interceptor. The Shorewood II Interceptor provides metropolitan interceptor sewer service for a portion of northern Chanhassen as well as the communities along the southern shores of Lake Minnetonka. The Southwest Facility Planning Study completed by the MCES in 1980 states the capacity of the — interceptor varies from 7.3 MGD to 15.5 MGD. 1998 Chanhassen CSPP 27 Lake Ann Interceptor The Lake Ann Interceptor is an MCES sewer and serves Chanhassen in the Rice-Marsh Lake, Lake Susan, Lake Ann, and Lake Lucy vicinity. The Lake Ann Interceptor sewer system was constructed in three phases and was completed in 1988. The interceptor flows southeast, beginning at Trunk Highway 41 near the north City limits and extends approximately 4.5 miles to the Red Rock Interceptor at the Chanhassen/Eden Prairie border. The City's Lake Ann trunk sewer runs parallel to the MCES trunk sewer between the Red Rock Interceptor and Highway 5. The Red Rock Interceptor starts at the termination of the Lake Ann Interceptor and continues southeasterly through Eden Prairie where it discharges into the Purgatory Creek Interceptor and eventually to the Blue Lake sewage treatment plant in Savage. The Southwest Facility Planning Study completed by the MCES in 1980 states the capacity of the interceptor as 43.4 MGD. In 1992, the MWCC (MCES) allocated an additional 3.0 MGD of capacity in the Red Rock Interceptor to Chanhassen. Lake Virginia Lift Station and Forcemain This system begins at the Lake Virginia lift station just northwest of Chanhassen. The Lake Virginia forcemain runs along West 62nd Street, Church Street, State Highway 7 and State Highway 41. At this point, it discharges into the Lake Ann Interceptor, which discharges to the Red Rock Interceptor. The Red Rock Interceptor starts at the termination of the Lake Ann Interceptor and continues southeasterly through Eden Prairie to the Purgatory Creek Interceptor at Research Road. The Lake Virginia lift station and forcemain carries wastewater flows from the western Lake Minnetonka communities. The Lake Ann Interceptor and the Red Rock Interceptor carry wastewater from the local service areas of Chanhassen and Eden Prairie along with the Lake Virginia lift station flows. The Lake Virginia lift station and forcemain design flow is 17.3 MGD. Design flow of the Red Rock Interceptor at its intersection with the Purgatory Creek Interceptor is 39.1 MGD, which includes 30.4 MGD from Chanhassen. 1998 Chanhassen CSPP 28 INTERCOMMUNITY FLOWS Because of its rolling topography, Chanhassen has many areas of intercommunity sanitary sewer flows. The Shorewood Interceptor and Lake Virginia system described above convey flows from — Chanhassen and its neighboring communities. The northeast corner of the City(Subdistrict NO-2) flows easterly through a 15" sewer in Eden Prairie. An agreement between Chanhassen and the City of Chaska allows for small border areas of Chanhassen to flow into Cha ka's system. In addition, long-term planning by the MCES allows for — portions of the Lower Bluff Creek District to flow into the MCES's Chaska system. For this report, it is assumed that all of the Lower Bluff Creek District will be serviced by the Lake Ann Interceptor and Red Rock Interceptor. Future studies and/or analysis of the service options for Subdistricts LB-3 and LB-5 may determine that these subdistricts should be serviced through the Chaska system. — An existing agreement between Chaska and Chanhassen (MWCC Contract No. C-2793) allows Chaska to operate a lift station/force main system to divert approximately 1.0 MGD average flow to Chanhassen's Lift Station No. 24 on Lyman Boulevard. The diverted flow is necessary to relieve overloading experienced at the MCES's Chaska Wastewater Treatment Plant until the proposed — forcemain to Shakopee is constructed. The flow diversion is a temporary measure and will be phased out when the MCES Chaska improvements are completed. The phase out date in the — agreement is December 31, 2000. 1998 Chanhassen CSPP 29 CHANHASSEN SANITARY DISTRICTS MINNEWASHTA DISTRICT (MW) — The Minnewashta District consists of 1,516 total acres of land. The district is divided into three subdistricts: the area west of Lake Minnewashta, the area north of lake Minnewashta, and the arboretum area. — The district trunk sanitary sewer has basically been completed. The district is served by a series of — eight inch and ten inch sewers and five lift stations (Nos. 3, 4, 6, 7, and 8). All existing facilities appear to have adequate capacity to service the Minnewashta District under ultimate conditions. NORTH DISTRICT (NO) The North District consists of 1,124 total acres of land on the north and northeast edges of the City. The district is composed of two subdistricts as shown on Figure No. 7. The majority of the district is presently developed. — The district is served by sewers from 8 inches to fifteen inches in diameter, as well as six lift stations (Nos. 5, 13, 14, 15, 16, and 21). Flow from the district discharges into Shorewood and Eden Prairie — and eventually into MCES sewers. _ LAKE ANN DISTRICT(LA) The Lake Ann District consists of 2,341 total acres of land draining to the north and east. The Northeast District is divided into 6 subdistricts. — The Lake Ann Sewer District is served primarily by the MCES Lake Ann Interceptor. A sub-trunk line running west from the Lake Ann Interceptor with a lift station and force main west of Galpin — Boulevard serves the LA-5 subdistrict. LOTUS LAKE DISTRICT (LL) The Lotus Lake District consists of 1,365 developable acres (1,413 acres total) in the northeast corner of the City. The Lotus Lake District consists of only 1 subdistrict. 1998 Chanhassen CSPP 30 All trunk sanitary sewer lines serving the Lotus Lake District have been installed. There are seven existing lift stations in the district(Nos. 1,2, 9, 10, 11, 12, and 22). All existing facilities appear to have adequate capacity to service the Lotus Lake District under ultimate conditions. LAKE RILEY DISTRICT (LR) The Lake Riley District consists of 728 developable acres located in the southeast area of the City. The Lake Riley District is divided into 2 subdistricts divided by the proposed Highway 212 ROW. _ The northern subdistrict (LR-1) is mostly developed with adequate facilities for service. Most of the Lake Riley Dis[iict is presently served. In 1997, service was extended to the southern district area by extending gravity trunk sewer south along Hwy. 101 and upgrading Lift Station No. 17. The district includes three lift stations (Nos. 17, 18, and 20) and a section of on-site system effluent collection along the north side of 96th Street. LAKE LUCY DISTRICT (LC) The Lake Lucy District consists of 123 developable acres (154 acres total). The Lake Lucy District has of only 1 subdistrict and includes the Carver Beach Playground area. An existing lift station and forcemain serves the Lake Lucy Sanitary District. UPPER BLUFF CREEK DISTRICT (BC) The primary feature of the Upper Bluff Creek District system is a 6.7 MGD lift station at Lyman _ Boulevard and Audubon Road (LS. No. 24). This station pumps through a 16" forcemain to a 24" gravity line in Audubon Road. The 24" line then follows Audubon Road and Lake Drive west to the existing Lake Ann Trunk Sewer. From the lift station, a trunk line heads northward along Bluff Creek and its tributaries to serve the remainder of the district. Another lift station(Lift Station#26) serves the portion of subdistrict BC-5 that is west of Galpin Boulevard and south of T.H. 5. A future lift station is proposed to serve the BC-9 subdistrict. A proposed lift station south and west of Lyman Boulevard (greenhouse area) could be eliminated if its tributary parcel is connected to the _ Chaska system. The connection to Chaska's system appears to be feasible and has been included in the intercommunity agreement between Chaska and Chanhassen. 1998 Chanhassen CSPP 31 LOWER BLUFF CREEK DISTRICT (LB) The Lower Bluff Creek District consists of 1,922 developable acres (2,378 acres total) located on the southern edge of the City. The Lower Bluff Creek District is divided into 5 subdistricts. For this report, it is assumed that all 5 subdistricts will be serviced by directing flows northward to the Lake Ann Interceptor. An optional service layout could include pumping flows from Subdistricts LB-3 and LB-5 or to the west into the MCES's Chaska system. Service for this district will require at least two future lift stations. A possible sewer layout to convey all flows to the north is shown on Figure No. 7. LIFT STATIONS -4' Because of it's unique terrain, Chanhassen has a large number of lift stations within the sanitary sewer system. Presently there are twenty-nine operating lift stations. The lift station sizes range from grinder pump stations serving a small number of homes to major lift stations servicing entire drainage districts. A summary of available lift station data is presented in Appendix F. Lift station locations are shown on Figure No. 6. 1998 Chanhassen CSPP 32 FIGURE 6 - LIFT STATION LOCATIONS [c(3t \'\(04\ '‘t \ 1998 Chanhassen CSPP 33 COST ANALYSIS TRUNK SEWER SYSTEM COSTS The 1993 CSPP established a trunk sewer charge system that has been used to finance trunk sewer improvements. This report reviewed the recommendations of the 1993 report. Cost estimates have — been revised based on the improvements proposed herein. — The cost estimates presented in this report are based on 1998 construction costs and can be related to the value of the ENR Index for Construction Costs. Future changes in this index are expected to fairly accurately describe cos changes in the proposed facilities. During interim periods between — full evaluation of projected costs, capital recovery procedures can be related to this index. A summary of the cost estimates is presented in Table 9 and a detailed breakdown of the cost estimates — is presented in Appendix E. — The cost estimates include 25%for legal/design/administration costs, 5%for capitalized interest, 5% for construction contingencies, and 30% for planning and lateral over-depth costs. Actual estimated construction costs are approximately 60%of the total project costs shown in Appendix E. Land and — easement acquisition costs are not directly included but may be partially offset by the contingencies. The cost estimates in Table 9 include all costs associated with the completion of Chanhassen's trunk sanitary sewer system, including trunk sanitary sewer, lift stations, and forcemains. Table 9. Trunk Sewer System Cost Summary _ Future Cost Lake Ann District $ 0 Lake Riley District $ 0 Lake Lucy District $ 0 Upper Bluff Creek District $2,195,520 Lower Bluff Creek District $4,397,440 Minnewashta District $ 0 _ North District $ 0 Lotus Lake District $ 0 Net Cost to Complete Trunk System $6,592,960 _ 1998 Chanhassen CSPP 34 CAPITAL IMPROVEMENT PROGRAM — The installation of the City of Chanhassen's trunk sanitary sewer system has proceeded steadily and — much of the area within the existing MUSA line is presently served by trunk sanitary sewer. It is anticipated that the remaining area within the MUSA line will continue to grow at a steady pace with — the trunk system not expected to be completed until sometime during the next 20 years. A Capital Improvement Program based on estimated phasing of trunk sewer construction is presented in Table 10. This table includes the service areas added, the estimated cost of each segment, and the total expenditure. The average annual expenditure required to improve the trunk —' system is approximately $313,650 for the next seven years. The proposed sewer extensions are shown graphically in Figure 7. — Improvements in the period from 2011 to 2015 will be more expensive than any other 5-year period. — It is anticipated that positive hook-up charge revenue from the years before 2011 will be needed to offset some of the costs for this period. Note that the costs shown above and on Table 10 do not include annual maintenance, lift station upgrade, infiltration/inflow reduction, or sewer replacement costs. — 1998 Chanhassen CSPP 35 T Table 10. Trunk System Phasing Trunk Extension Costs Subdistrict From To Incre- Year Flow Added Point Point mental Total 1998 BC-5 BC 5.1 BC 2.3 N/A — 1999 BC-7 BC 2.4 BC 3.1 $713,600 2000 BC-8 BC 3.1 BC 4.2 345,600 — 2001 BC-9 BC 4.1 BC 5.1 264,000 $1,323,200 As 2002 BC-2 (Part) BC 1.1 BC 1.2 60,800 2003 BC-2 (Part) BC 1.2 BC 1.3 273,280 2004 BC-3 (Part) BC 1.2 BC 1.4 250,240 2005 BC-3 (Part) BC 1.1 BC 1.5 288,000 — $ 872,320 _ 2006-2010 LB-1 LB 1.1 LR 2.1 908,800 2011-2015 LB-3, LB-5 2,591,360 2016-2020 LB-2, LB-4 717,900 Post 2020 OTHER 179,380 $4,397,440 Total $6,592,960 1998 Chanhassen CSPP 36 SEWER CHARGES - A cost recovery policy for trunk sanitary sewer facilities was developed as part of the 1993 CSPP. The policy includes a trunk area sanitary sewer hookup charge on a per unit basis. — In developing the unit hookup charge, the City's Comprehensive Land Use Plan was reviewed to — determine the estimated ultimate amount of new sanitary sewer hookups in the previously un- assessed parts of the City. The total amount of hookups was determined by assigning a minimum number of Residential Equivalent Units (REU's) to each type of land use. With the number of estimated future hookups (REU's) and the estimated future sewer system costs (Table 9), the cost per hookup was determined to be$970 per unit in 1993. The rate of$970 per unit has been adjusted annually based on an ENR index of 4884 (February 1992). The 1998 adjusted rate is $1,584 per equivalent unit. — It is recommended that the minimum unit area charges (REU's x Unit Rate) as shown in Table 11 — be levied at the time trunk improvements are available to an area. If additional units above the minimum shown in Table 11 are developed, the additional units shall be charged at the time of the _ individual development. The number of units for commercial/ industrial property shall be a minimum of four units per net developable acre plus additional units based on SAC calculations associated with development. — Table 11 below summarizes the estimated REU's for the sanitary sewer system. The table also lists the minimum number of REU's per land use. 1998 Chanhassen CSPP 37 Table 11. City Of Chanhassen Sanitary Sewer Residential Equivalent Unit (REU) Summary Minimum Unit Minimum Unit Land Use Type REU/Ac. Rate Area Charge * Low Density 2 $1,584 3,168/Ac Medium Density 3 $1,584 4,752/Ac High Density 6 $1,584 9,504/Ac Commercianndustrial 4 $1,584 6,336/Ac Public 2 $1,584 3,168/Ac * Minimum unit area charge is based on a 1998 rate of$1,584 per REU and can be revised. The minimum unit area charge column in Table 11 is based on net developable acres. Net developable acres include the total area of a parcel less major highway and railroad right-of-ways and wetlands. It is assumed that the net developable areas for individual developments will include internal right-of-ways and unbuildable areas such as steep slopes, parks, and wooded areas. The resulting hookup charge for the sanitary sewer system is presented in Table 12 below. The estimated number of REU's in Table 12 includes estimated units in expansion areas through 2015. Table 12. Trunk Sanitary Hookup Charge System Total Estimated Cost $6,592,960 Estimated Future REU's — 4.160 Sewer Hookup Charge $1,584/REU (1998) 1998 Chanhassen CSPP 38 ON-SITE WASTEWATER DISPOSAL FACILITIES GENERAL The proper management of onsite sewage treatment systems is a high priority for Chanhassen. City Ordinance 10-B adopted Mn Rules Chapter 7080 and required licensing of designers, installers, and — pumpers. This ordinance was adopted in 1987. The current ordinance requires certification of septic tank maintenance every two years. — This issue is discussed in detail in the Sewer Element of the Comprehensive Plan. 1998 Chanhassen CSPP 39 Y SUMMARY AND RECOMMENDATIONS The Comprehensive Sewer Policy Plan presented herein is intended to serve as an inventory of Chanhassen's existing sanitary sewer trunk facilities as well as a guide to completing the remaining sections of the trunk system. The document also serves to meet the sewer planning requirements for the Metropolitan Council. The eight major districts and related subdistricts established in 1993 were reviewed and revised based on current conditions. The areas and residential units of each subdistrict are presented in Appendix A. Unit rates of wastewater generation were assigned to each land use category with the resulting flows for each subdistrict presented in Appendix B. The trunk sewer system is presented on Figure 7 at the back of this report. The system includes major districts and subdistricts, existing and proposed trunk sewers with pipe sizes, lift stations and forcemains. Reference points are provided along each trunk line and point by point capacities are presented in Appendix C. Design data for the lift stations are presented in Appendix F. Adjustments in the routing and size of the trunk facilities can be expected as determined by the conditions at the time of final design, however, the general concepts should be adhered to for assurance of an economical and adequate ultimate system. The estimated cost of completion of the trunk system is $6,592,960. A Capital Improvement Program for completion of the trunk sanitary sewer system in the City is presented in Table 10. The following recommendations are presented for consideration: 1. That the Council adopt this report as the Comprehensive Sewer Policy Plan for the City of Chanhassen and that it be submitted to the Metropolitan Council (including the MCES) for review and comments. 2. That the existing policy of assessing for trunk sanitary sewer service on an area and connection basis be retained. The trunk assessment rate and hookup charge for sanitary sewer should continue to be revised by the City Staff on an annual basis. 3. That the existing ordinances and inspection policies for on-site disposal systems be maintained. 1998 Chanhassen CSPP 40 4. That existing provisions be maintained for controlling Infiltration/Inflow into the sanitary sewer system during new sewer construction. 5. That the Capital Improvement Program as outlined herein be adopted and revised on a — regular basis as appropriate. 1998 Chanhassen CSPP 41 Y O .n CL A -r co: O t0 O N. N N = 0 O - O 0 C. 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'a «r a v a -o a) C N O in O in O O i[) L- LU E N N c') C') N N N - CIL _, 11b Lc) O i1) u') O Q0 - r N N r (y <0 > > > > > > > a �° o -0 a. a. aao_ aa — 2 c 10 IC) IC) L'') (f) l!') LC) _ Co J co 0 r N t' o . a°, U U U U m m m m o _ � N0 "' u' a_ m m m m c 4) U (n v w_ co 7) C6 m a) ca m CITY OF CHANHASSEN 1998 CSPP APPENDIX F LIFT STATION DATA Lift Station #1 Lift Station #2 7205 Frontier Trail, 7522 Frontier Trail, Sunrise Beach Lot 4 Blocks No. of Main 2 pumps, 675 gpm and 2 pumps, 343 and 740 gpm capacity 357 gpm capacity 20 HP, 240 volts 12.1 H.P., 240 volts, 3 phase � Lift Station #3 Lift Station #4 3900 Highway 7 2935 Washta Bay Road 2 pumps, 660 gpm capacity each 2 pumps, 1000 and 1100 gpm capacity 18 HP, 240 volts, 3 phase 18 HP, 240 volts, 3 phase Lift Station #5 Lift Station #6 1005 Holly Lane, Christmas Lake 7255 Minnewashta Parkway, 2 pumps, 325 and 265 gpm capacity No. of Hwy. 5 9.4 HP, 240 volts, 3 phase 2 pumps, 5 HP 240 volts, 3 phase Lift Station #7 Lift Station #8 7000 Minnewashta Parkway, 3305 Shore Drive 2 pumps, 135 gpm capacity each 2 pumps (Grinder) _ 10 HP, 240 volts, 3 phase 2 HP, 240 volts, 1 phase Lift Station #9 Lift Station #10 6601 Lotus Trail 600 Carver Beach Road 2 pumps, 18 HP, 240 volts, 2 pumps, 960 gpm capacity each 3 phase 88 HP, 480 volts, 3 phase — Lift Station #11 Lift Station #12 7110 Utica Lane, at Greenwood Dr. 7580 Chanhassen Road 2 pumps, 100 gpm each 2 pumps, 100 gpm each 9.4 HP, 240 volts, 3 phase 9.4 HP, 240 volts, 3 phase Lift Station #13 Lift Station #14 100 Sandy Hook Road 337 Pheasant View Road _ 2 pumps, 130 gpm capacity each 2 pumps, 1.5 HP, 240 volts 5 HP, 240 volts, 3 phase 3 Phase Add-A-Phase Appendix F - Chanhassen 1998 CSPP-Lift Station Data F-1 Y APPENDIX F—CONTINUED LIFT STATION DATA Lift Station #15 Lift Station #16 6653 Horseshoe Curve 641 Pleasant View Road 2 pumps, 10 HP, 240 volts 2 pumps (Grinder) 3 Phase Add-A-Phase 2 HP, 240 volts, 1 phase Lift Station #17 Lift Station #18 — 8990 Lake Riley Boulevard, at Lyman 9250 Lake Riley Boulevard 2 pumps, 7.5 HP, 240 volts, 3 phase 2 pumps, 5 HP, 240 volts, 1 phase Lift Station#19 Lift Station #20 7330 Dogwood 599 West 96th Street 2 pumps, 5 HP, 240 volts, 1 phase 2 pumps, 1 HP, 240 volts, 1 phase Lift Station #21 Lift Station #22 295 Trappers Pass 7620 West 184th Street — 2 pumps, 5 HP, 240 volts, 1 phase 2 pumps, 10 HP,480 volts, 3 phase Lift Station#23 Lift Station#24 — Constructed as a park project 1801 Lyman Blvd., at Audubon Rd. 2 flygt, 2 HP 3 pumps (existing) 1550 gpm each Model 3085 1 pump (future) 1550 gpm, 90 HP _ Lake Ann Park 460 volts, 3 phase, 60 Hz Lift Station #25 Lift Station#26 — Lake Lucy District Galpin Blvd. So. of Hwy. 5 (cemetery) 1330 Heather Court Constructed under City Proj. 91-17B 2 flygt, 7.6 HP, Model 3127 2 pumps, 830 gpm each, 25 HP — 240 volt, 3 phase 480 volt, 3 phase, 200 amp Lift Station #27 Lift Station #28 — Long Acres Development Kings Road Constructed under City Proj. 92-5 2 pumps, 5 HP, 240 volts, 1 phase 7471 Moccasin Trail Capacity: 100 gpm (each pump) — 2 KSB Model 100-251 5 HP, single phase — Lift Station#29 Lift Station #30 Powers Boulevard, north of Lyman Future 8805 Powers Boulevard _ ABS Model AFP 1042 9.4 HP, 208 volt, 3 phase Appendix F— Chanhassen 1998 CSPP—Lift Station Data F-2 W a. m 2 C O Ms 0 22 a LL g r) 0 ~ 0 0 LL -0 N NnH S N v1a O) 0) N m N J J O N U I O n f!)O O n O n a O f 0 0^ 0)D O O CO 0 0 a Q )O o Z A Z r r z N m H PI O ZP. 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ENGINEERS/ARCHITECTS ST. PAUL/MILWAUKEE May 29, 1998 Honorable Mayor and City Council — City of Chanhassen 690 Coulter Drive P.O. Box 147 — Chanhassen, Minnesota 55317 Re: 1998 Water Supply&Distribution Plan — City Project PW347B Our File No. 39363 Dear Mayor and Council: Transmitted herewith is our Report on a Water Supply and Distribution Plan for the City of Chanhassen. The plan is intended to serve as a guide for the expansion of the City's trunk water system. The information presented in this report is based on costs and data that were available through 1997. An Executive Summary is included at the beginning of the report. This report updates and expands upon previous water distribution reports. A layout of the ultimate trunk supply and water system for the entire City is presented in Figure 8 at the back of the report. Preliminary cost estimates for water mains, wells and storage facilities have been prepared to serve as a basis for area, — connection,and lateral benefit charges. We would be pleased to discuss the contents of this report and the findings of our study with the Council, — Staff and other interested parties at any mutually convenient time. Respectfully submitted, — BONESTROO,ROSENE,ANDERLIK&ASSOCIATES. INC. Mark R. Rolls.P.E. MRR:tIg I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota — Mark R. Rolfs, P.E. Date: May 29, 1998 Reg. No. 16722 - - T TABLE OF CONTENTS — PAGE NO. TABLE OF CONTENTS 1 EXECUTIVE SUMMARY 5 INTRODUCTION 6 Water System Policy 6 Background 6 Figure 1 - Location Map 7 SCOPE OF STUDY 9 REPORT ORGANIZATION 11 — WATER DEMANDS 12 General 12 Land Usage 12 Land Use Map 13 TABLE 1 - LAND USE TYPE DESCRIPTIONS 14 — POPULATION 15 TABLE 2 - POPULATION PROJECTIONS 15 — PAST WATER USAGE 16 FIGURE 2 - POPULATION PROJECTIONS 17 — TABLE 3 - PUMPING RECORDS 19 FIGURE 3—MONTHLY WATER FLOWS 20 — TABLE 4 - PAST WATER DEMAND VARIATIONS 22 WATER DEMAND BY CUSTOMER CATEGORY 22 TABLE 5—WATER DEMAND BY CUSTOMER CATEGORY 22 — FIGURE 4— 1997 DEMANDS BY CUSTOMER CATEGORY 24 PROJECTED WATER USAGE 25 TABLE 6—EXISTING DEMANDS FOR LARGE USERS 25 TABLE 7—FUTURE DEMAND RATES 26 1998 Water Supply and Distribution Plan 1 TABLE OF CONTENTS (CONT'DA PAGE NO. — TABLE 8— PROJECTED WATER DEMANDS 28 EXISTING FACILITIES 29 — RAW WATER SUPPLY 29 TREATMENT 30 Well Water Quality 30 TABLE 9 - WELL AND WATER QUALITY DATA 31 STORAGE 32 TABLE 10 - EXISTING STORAGE FACILITIES 33 DISTRIBUTION SYSTEM 34 — ADEQUACY OF EXISTING FACILITIES 35 TABLE 11 — EXISTING FIRE FLOWS 35 — PROPOSED FACILITIES 37 SUPPLY - STORAGE CONSIDERATIONS 37 HYDRAULIC ANALYSIS 38 FIGURE 5 - MAXIMUM DAY DEMAND VARIATION 39 RAW WATER SUPPLY 40 — WELLS REQUIRED 40 GALPIN BOULEVARD WELL FIELD 41 — LOTUS LAKE WELL FIELD 41 RECOMMENDATIONS 42 FIGURE 6 - GALPIN BLVD. WELL FIELD 43 FIGURE 7 - LOTUS LAKE WELL FIELD 44 TREATMENT 45 GENERAL 45 STORAGE 47 — GENERAL 47 1998 Water Supply and Distribution Plan 2 TABLE OF CONTENTS (CONT'D) PAGE NO. — FUTURE WATER STORAGE FACILITIES 47 TABLE 12- ULTIMATE STORAGE FACILITIES 48 DISTRIBUTION SYSTEM 49 — GENERAL 49 LOW PRESSURE ZONES 51 — TABLE 13 - LOWEST PRESSURE NODES 52 HIGH PRESSURE ZONES 53 — TABLE 14 - HIGHEST PRESSURE NODES 53 HIGH HEADLOSS LINES 53 — WATER SYSTEM PHASING 54 GENERAL 54 TABLE 15 — SUPPLY AND STORAGE PHASING 55 — ECONOMIC ANALYSIS 56 COST ESTIMATES 56 — TABLE 16 - WATER SYSTEM COST SUMMARY 56 CAPITAL IMPROVEMENT PROGRAM 57 — TABLE 17 - CAPITAL IMPROVEMENT PROGRAM, SUPPLY & STORAGE 58 WATER CHARGES 59 — TABLE 18— RESIDENTIAL EQUIVALENT UNIT (REU) SUMMARY 60 TABLE 19 -TRUNK WATER HOOKUP CHARGE SUMMARY 61 SUMMARY AND RECOMMENDATIONS 62 — SUMMARY 62 DUAL CLUSTERED WELL FIELDS 62 — EXPANDED HIGH PRESSURE ZONE 63 T.H. 41 RESERVOIR C3 — LYMAN BLVD. RESERVOIR 63 1998 Water Supply and Distribution Plan 3 TABLE OF CONTENTS (CONT'D) PAGE NO. LAKE MINNEWASHTA SERVICE AREA 63 LOWER BLUFF SERVICE AREA 64 _ GALPIN BOULEVARD BOOSTER STATION REMOVAL 64 CHASKA INTERCONNECTION 64 COST ESTIMATES 64 RECOMMENDATIONS 65 APPENDIX A - DEMANDS APPENDIX B - ELEVATIONS AND PRESSURES APPENDIX C - COST ESTIMATES APPENDIX D - WATER QUALITY REQUIREMENTS APPENDIX E - WATER SYSTEM EMERGENCY PREPAREDNESS PLAN APPENDIX F - WATER CONSERVATION PLAN APPENDIX G - WATER RELATED ORDINANCES APPENDIX H - WATER SYSTEM SCHEMATIC — FIGURE 8 - CITY OF CHANHASSEN - WATER DISTRIBUTION SYSTEM _ 1998 Water Supply and Distribution Plan 4 EXECUTIVE SUMMARY This report was prepared to evaluate the ultimate water works needs for the City of Chanhassen. The report can be used to plan future development in the City. Municipal water works systems consist of four components: Supply (wells), distribution (piping), storage (towers), and treatment. This report provides a layout of the future trunk distribution system. The proposed trunk distribution system will meet water demands and fire protection flows based on projected land uses. Projected storage requirements are also noted. Future supply requirements have been determined. An estimated number of future wells and general well field locations are proposed. Two well fields are planned to provide the City with alternative supply sites. Clustered well fields are proposed to facilitate possible future central water treatment facilities. It is recommended that a follow-up well field study be completed to determine future well locations and long term water supply characteristics. An economic analysis was also completed as part of this report. An area charge system has been developed that will have new development pay for future water works improvements. The area charge was established by estimating the costs for all remaining trunk water facilities (piping, wells, and towers) and spreading these costs out over all undeveloped property based on the land use type. This report should be revised every five to seven years during rapid growth periods to reflect changes in development and land use patterns. The Capital Improvement Program should be revised as appropriate and the area charge rate should be revised annually. 1998 Water Supply and Distribution Plan 5 INTRODUCTION — Water System Policy The goal of the City of Chanhassen is to provide safe, high quality and affordable drinking water to its customers while assuring the long-term protection of the supply from contamination — and excessive depletion. Background The City of Chanhassen is located in the southwestern portion of the Seven County — Metropolitan Area in Carver County, as shown on Figure 1. Chanhassen has experienced continuous rapid growth over the past 30 years, with the population increasing from 4,112 in 1967, to a 1997 population of 17,570. The City is expected to continue its steady growth, with a total population of 20,730 anticipated by the year 2000. Based on current land use planning, the City's saturation population is estimated at approximately 35,400. Water usage within the City has increased substantially during the last 10 years with the — influx of new residential and industrial/commercial development. The 1996 average usage of 64,760,000 gallons per month was almost double the 1991 average water usage and triple the _ 1986 average water usage. The City of Chanhassen is currently pumping approximately 750 million gallons of water into the system each year. Peak day water demand in 1997 was 6.21 million gallons per day. The increasing demands that the growing population places on the City's water system necessitates the provision of a well planned water supply and distribution system. The development of a water system capable of supplying and distributing potable water of high quality to all points of demand at acceptable residual pressures requires advance planning. Such a system is dependent upon a strong network of trunk water mains complemented by — properly sized and strategically located supply and storage facilities. A comprehensive plan based on the most reliable information presently available is necessary to ensure that adequate facilities — are provided during a significant growth period and to allow flexibility for future adjustments. 1998 Water Supply and Distribution Plan 6 • 0 W L. 11) V 114 m — \bib U D4 0 Nir_a �D ® 1Q ED a. to c D a A■ I j c O V e 111 0 Iui•41111 pDr O - s Q 0 Aillk I r o.a tiU< c � 0 I .e .. a` "" �' a �' o - i.Q: lik 3 a. ' O • Y o 'A& t NO orn C. N (.0 � L O O V a , .) 5 1 Without proper planning, haphazard and piece-meal construction can result in inefficiently sized facilities. This is very costly to a community since a water main that is too large is not fully — utilized, while a main that is too small will eventually have to be paralleled or replaced. The purpose of this study is to provide the City of Chanhassen with a Comprehensive Water Supply — and Distribution Plan that will provide efficient and effective development and maintenance of the City's Water Supply System. The purpose of this report is to update previous water system reports considering the latest land use, population, and water demand data available. The plan contained herein presents a water supply and distribution system for the entire City of Chanhassen. A layout of the system — including all relevant data is presented on Figure 8 at the back of this report. Preliminary cost estimates were prepared to serve as the basis for new area, connection and lateral benefit charges. — Well field locations and optimal locations for water storage facilities are also presented in the report. Table 15 of the report lists recommended well and tower improvements and an estimated phasing of the improvements. A list of six follow-up recommendations are presented at the end of the report. • 1998 Water Supply and Distribution Plan 8 SCOPE OF STUDY Chanhassen's water system can be divided into three main categories: • Supply Facilities • Storage Facilities • Distribution System Supply Facilities include all equipment necessary to pump, treat, and distribute the amounts of water demanded on the system. For Chanhassen, it is proposed to consider only ground water supply sources although this does not preclude the possibility of using surface water supply at some future date, or water from some other outside sources. The supply facilities thus -.- include the wells, pumps, pumphouses, controls, water treatment facilities, raw water transmission mains, and all related facilities. The Storage Facilities are the reservoirs used throughout the system to store water for usage during emergency and peak conditions. Water from storage is fed into the system by gravity. Two types of reservoirs feed water directly into the system by gravity. These include a ground reservoir with the floor resting on the ground or an elevated reservoir with columns supporting the tank. A ground reservoir may also be constructed at an elevation that requires a booster station to pump the water into the system at the proper pressure. The Distribution System consists of the trunk water mains (primarily 10 inches or larger in diameter), the lateral water mains (6 or 8 inches in diameter), the service pipes, valves, hydrants, and all appurtenances necessary to convey water from the supply sources and reservoirs to the points of demand. Since the water laterals are normally routed along residential streets within a development, it is impossible to predict with any degree of accuracy where future laterals will be placed in undeveloped areas. These lines are excluded from consideration in analyzing the distribution system hydraulics. Eight inch mains in place, or where their proposed location is relatively fixed are included in the hydraulic analysis, but excluded from trunk cost determinations. These proposed and existing 8-inch mains are shown on Figure 8, but it is suggested that all future 8-inch mains be considered laterals and assessed as such. The phased construction of the Chanhassen water distribution system has primarily been dependent on development within the City. Where development occurs, water mains are constructed to serve those specific developments. However, development within the City has not been absolutely contiguous in the last few years and gaps in the distribution system have resulted. As development continues to move further away from the supply wells and reservoirs, these gaps can cause problems with insufficient supply and pressures since they prevent the "looping" of the distribution system. Looping of the distribution system provides system reliability in the event of 1998 Water Supply and Distribution Plan 9 a water main break, but more importantly it provides the large flows required for fighting fires. One of the purposes of this report is to evaluate potential water pressure and supply problems _ inside the MUSA and determine the most feasible solutions. The primary objective of this report is to revise previous water system reports and provide a — water system plan for the entire City based on the most recent land use planning available. Specifically, the following objectives are outlined: 1. To determine the ultimate water demands expected within the City and the — production capacity and storage required to meet these demands. 2. To revise the existing trunk water main system in accordance with present — planning. 3. To determine near-term supply and storage needs in order to allow sufficient lead — time for the addition of facilities to the system. 4. To hydraulically analyze the proposed ultimate system to ensure adequate residual — pressures. 5. To analyze supply, storage and distribution combinations to develop an economical and energy efficient ultimate water system. 6. To develop preliminary cost estimates for supply, storage and distribution to form a basis for a satisfactory financing program. — 7. To provide general well field layouts for location of future wells. 8. To provide capacities and locations of proposed new water storage facilities. — The report does not address specific well siting or water treatment plant design in great detail. A separate report on water treatment should be prepared if public demand requires water treatment in the future. A separate report on the two proposed well fields should be prepared to address optimal spacing and location of future wells as well as long term water supply capacities. 1998 Water Supply and Distribution Plan 10 — REPORT ORGANIZATION 1. The first section entitled "Water Demands" explains the derivation of near-term and ultimate water demands. Included are descriptions of land use and population projections, along with past water usage. 2. The second section entitled "Existing Facilities" describes existing water system facilities, including wells and pumphouses, storage reservoirs, and the distribution system. 3. The third section entitled "Proposed Facilities" provides details of the proposed water system facilities, including wells and pumphouses, treatment facilities, storage reservoirs, and the distribution system. This chapter also summarizes the hydraulic analysis performed and provides an outline of supply-storage phasing. 4. The fourth section entitled "Economic Analysis" deals with the economics of the water system improvements, and provides cost estimates and a summary of the Capital Improvement Program. 5. The final section entitled "Summary and Recommendations" contains a brief summary of the report and recommendations. 6. The report contains three appendices: a. Appendix A is a tabulation of maximum day and maximum hour demands on the water system. b. Appendix B is a tabulation of ground elevations, hydraulic grade lines, and pressures during the maximum hour of demand for points in the water system. c. Appendix C is a tabulation of cost estimates. d. Appendix D entitled "Water Quality Requirements" summarizes water quality requirements and goals. e. Appendix E is an updated Water System Emergency Preparedness Plan. f. Appendix F is an updated Water Conservation Plan g. Appendix G includes City Water Related Ordinances. 1998 Water Supply and Distribution Plan 11 WATER DEMANDS GENERAL Capacity requirements for the three water system components of supply, storage and _ distribution are dictated by the demands placed upon them for production and distribution. The design of the water supply and distribution system for Chanhassen was based on estimates of the ultimate water demand for the City and phasing of the system improvements is based on estimates of near-term needs. Water demand (both peak and average), is affected by many factors including population, population distribution, commercial and industrial activity, water quality and rates, climate, soil conditions, economic level of the community, sewer availability, water pressures, and the _ condition of the water system. The most important factor is land usage, which encompasses population and commercial and industrial use activity. Projections of near-term and ultimate land usage and population for Chanhassen were correlated with past and present water demands to develop estimates of both near-term and ultimate water demands for the City. LAND USAGE The January, 1998, Year 2000 Land Use Plan for the City of Chanhassen that served as a basis for the development of the proposed water supply and distribution system is presented on the following page. In order to estimate water demands, the Land Use Guide Plan was used to divide the City into the land use types which are defined in Table 1. The acreage for each land use _ type was measured in gross developable acreage which is the total acreage reduced by the estimated undevelopable areas. The gross developable acres include small parks and street rights- of-way. Lot counts and tabulation of proposed residential units were used wherever possible in determining expected rates of water consumption from existing residential areas. 1998 Water Supply and Distribution Plan 12 LAND USE MAP POCKET 1998 Water Supply and Distribution Plan 13 TABLE 1 LAND USE TYPE DESCRIPTIONS 1) Residential - Low Density (R-L) - Single family residential development at a density range of 1.2 - 4.0 dwelling units per acre. 2) Residential - Large Lot (R-LL) - Large lot single family residential developments platted prior to 1987. Average lot sizes are 2.5 acres with an average density of 4 unit per 10 acres. Serviced by on-site sewage treatment systems. 3) Residential Medium Density (R-M) - Mix of medium density single family clusters, townhouses, smaller multiple family structures and occasional apartment structures at a density range of 4.0 - 8.0 dwelling units per acre. 4) Residential High Density (R-H) - Variety of high density buildings as well as a controlled mixture of lower density residential classifications at a density range of 8-16 dwelling units per acre. 5) Commercial - Includes limited, neighborhood, roadside, and general business, community and regional shopping centers. 6) Office/Industrial - Includes general industrial and general office usage. 7) Public/Semi Public - Includes churches, schools and public service facilities (fire stations, libraries, utility structures,etc.). 8) Parks/Open Space - Includes all City and County park land as well as some golf course areas, etc. 9) Mixed Use - A limited area near the City's future Highway 212 consisting of commercial and high density residential. 10) Undevelopable(Undev.) - Includes floodplains, wetlands, railroad, and major highway _ (Highways 5,7,41, and 212) rights-of-way, and major lakes. 1998 Water Supply and Distribution Plan 14 POPULATION Ultimate population estimates for the City of Chanhassen were developed for use in the design of the distribution system, storage facilities, treatment plants, and well fields. Population projections are given in Table 2 and are shown graphically on Figure 2. The population data are based on Census figures, Metropolitan Council estimates, and City projections. The census data are for 1960, 1970, 1980, and 1990 and include the total population in the City. The Metropolitan Council population estimates and the City's 1990 Land Use Guide Plan and planned residential densities were used to project total population. The facilities described in this report are designed to serve a potential ultimate saturation population of 35,400, so the actual growth rates will affect only the timing of construction and not the actual design of the system. Therefore, any discrepancy between the City's actual population growth rate and the Metropolitan Council's population projections does not impact the City's ultimate system. TABLE 2 POPULATION PROJECTIONS City Metro Council Year Projections Projections 1960 3,167* 3,167* 1970 4,879* 4,879* 1980 6,359* 6,359* 1990 11,732* 11,732* 2000 20,500—21,900 18,600 2010 26,800—28,100 24,900 2020 (Ultimate) 35,000— 37,300 34,400 * Census data 1998 Water Supply and Distribution Plan 15 PAST WATER USAGE The rate of water consumption will vary over a wide range during different periods of the year and during different hours of the day. Several characteristic demand periods are recognized as being critical factors in the design and operation of a water system. The demand rates are — expressed in million gallons per day (MGD) which, in the case of a daily demand, indicates the total amount of water pumped in a 24 hour period. Hourly rates are also expressed in million gallons per day. In the case of an hourly rate, the rate in MGD is determined by assuming that the pumpage would continue at the indicated rate for 24 hours. 1998 Water Supply and Distribution Plan 16 45,000 CITY OF CHANHASSEN • POPULATION PROJECTIONS — METRO COUNCIL CITY YEAR PROJECTIONS PROJECTIONS • 40,000 1960 3,167• "'""'-'"_.'.'_'.._.__ _ 1970 4,879' -- • 1980 6,359• -- 1990 11,732* -- r! :1995 15.588 -- 35.000 1997 17,571 -- :: ` - 2000 18,600 20,500 TO 21,900 :" 2005 22,100 24.000 TO 25,500 ;° t 2010 24.900 26.800 TO 28,100 2020 34,400 35.000 TO 37,300 `i'-'/ 30,000 __'_ = CENSUS DATA ::e / / - City Projected : ` / O 25,000 Population Range 47 / PI- Ar D ,' \_Met Council ;, / n- 20,000 -' Projected - Population , f 15,000 _......_ __._ •1 • / 10,000 �-- --- •.... _ ...__..._____.. _ 5,000 0 - 1960 1970 1980 1990 2000 2010 2020 - YEAR POPULATION PROJECTIONS IA Bonestroo Rosene - vi et CHANHASSEN, MINNESOTA FIGURE 2 Associ k s Associates 1998 WATER SUPPLY AND DISTRIBUTION PLAN 393\39363\39363R02.0WG APRIL 1998 COMM. 39362 The average day demand is equal to the total annual pumpage divided by the number of days in the year. The principal significance of the average day demand is as an aid in estimating — maximum day and maximum hour demands. The average day demand is also utilized in estimating future revenues and operating costs such as power and chemical requirements, since these items are determined primarily by the total annual water requirements rather than by daily or hourly rates of usage. Pumping records which were used in determining average daily demands are presented in Table 3. The maximum day demand is the critical figure in the design of certain elements of the waterworks system. The principal items affected by the maximum day demands are: — (1) supply of available water, (2) raw water supply facilities, — (3) treatment plant capacity, and (4) treated water storage requirements. The raw water supply facilities must be adequate to supply water near the maximum day demand rate and the water treatment plant should be capable of processing a majority of the water supplied. Sufficient treated water storage should be provided to meet hourly demands in excess of the water supply capacity. The installed capacities should also include reserves for growth, industrial development and fire protection. The maximum demands upon the water system are encountered during short periods of time, usually on days of maximum consumption. These short period demands are referred to as hourly — demands, and they seldom extend over a period of more than three or four hours, generally during hot summer evenings when the sprinkling load is the highest. — 1998 Water Supply and Distribution Plan 18 AN, V v r �k 14..... '�I U) O 0 CD 0 V 0 (I) CO UN T V ) N CO CD V j O O N U) N O N CO V CO N CO U) O N 0 U) — CO N N CO r ,- Cr; CO CA t: N tf) O N CD T N V V V U) t� V U) CD tf) t� V V to V CD ,- N. T 1 C'D N Cf) N U) 0 CO T C) CO CJ) T co co T (3) CD — 3 C: co t� U) m co to T co V U) co CO O r co CO N !b\ T N CT C)) 0 T U) U) U) co t- in U) t- N U) IC) V V CO CO U) tf) N. •T •T CO CO V V I� co �t'' T r-,- ,- T n ' Q l.^, Cr T CO N O N. CO O7 CD T N C7) V r CD CO N - C• r 0 C V O O C. TCO U) N. r•-- (3) UN ` N U)C ) CD tO v ••, C) C) CO CD t- V C) 4 C) V C) CO O6 V T V C) N � W .-. T CO CO CO V U) N- N CD CO V '7 CO N N. U) Tia CL U) CO — Z CD O 0_ J - '3) 0 N N CO T U) 0) N U) 0 V CO V T CO 0_ Q = ..f) CO O CO O CO CO CO N co C) U) CI N T CO U) T V CO U) C7 T I: V t. CD V t. CO O T C) V N C) co N CO V C.A U) O CD V V CO CO CO 0 U) tl LL ," CD T Z O W (•/) L_ fn Z . O C7) C7) T T CD CO CO T CV V Cr) U) 0 V CO CD C/) O T) V T CD V CO V CO V U) C)) CA U) N CO CJ) V Q r N C)) C) CO O N C) , CD N C N- T r C') CD — Z __I Co N CO N V V V V V CO CO CO CO V CO Z — V c 2 V W 1 C. V r-- o) N U) co CT N co D) CO CO n C) CO 'CD LO 1.L I T CO O V CO. CO V CD CD T CO T N V CO CO O < ''C) CO CJ) U) T ,- U) co; N- co; T N T C) T CJ) ›- U- I N N N co U) CO V U) V co co co t- CO CO -a- }- H G [ U _ — I .D U) CT'O CO N CT V N- N- O U) CD C)) N C) CO .) 0) T O V C.7) CO T CO T Cn CO (V) T 0) CD N 'z O CO N C') CD O CO Cn CC) CO Q) U) ,- N C) co i- .1 T N CO CO V CO V co co N N co CD CO V — N C) O) N- U) CD CO V N- N N N CO to V C) _. COV T CD N. V U) No CO V N co co U) V 1,7; N V r t� V CD V N U) CD CD Cn U) ,- C') N O — 1 T. N CO CO CO CO V O V CO CO CO CO C) V V I c ^V N N V N. CO CO N V N N. V O N U) T O CO tf) CO C ) CT V T U) T C) U) N — r C) O N o) U) C) co; CO tr.; O V U) O ,- c' co; 4 N N N N CO V CD V CO V N N T CO CO V i — t ") V O) N CD CO a) V CT U) N- Q) CD N CO N CD O N CO tf) CD V CO h O CO CD O T C.7 N "' O CO 0 10 CO n N T CT; t- CO N N T CO N N N ,- N N V U) U) V CO N N N C) U) CO C) I _ _ I Co C _1- C7 a > 2 Jo . CO cC O O O O (ll L iii_., 2 jj 0)E Ea) Li) 0 "0 0 --.0 2 _...2 2 ...2 _Yre ‘) ..._6 ...._, = almao ' mo22 2v 2 el-- na iro , 5 a) O o - -F- �, 2c2 -, acnOZ ❑ F- Q12 -..2 _.Q —. V - � -) The maximum hour consumption rates impose critical demands on the distribution system, and major elements of the waterworks facilities must be designed to meet these demands and — provide satisfactory service at all times. Maximum hour demands are supplied through a combination of water from the wells and — water drawn from storage reservoirs on the distribution system. Ultimately, maximum hour demands will be supplied through pumpage from treatment plants and from storage. Although the rate of consumption is high during periods of maximum hourly demand, the duration of the extreme rate is relatively short. Therefore, a moderate quantity of water drawdown from storage _ reservoirs strategically located on the system assures satisfactory service, minimizes the total maximum hour pumping and transmission main capacity required, and permits more uniform and economical operation of the pumping facilities. Storage on the system is also an important factor — in insuring reliability of service during emergencies resulting from power failure, temporary outages of water supply facilities, and from emergency demands brought about by fires or line — breaks. In communities like Chanhassen where the distances from the water supply source and the — storage reservoirs is considerable, another critical element must be evaluated in designing the system. Storage tanks are refilled during the night and early morning hours when demand on the system is low. A strong network of piping is needed between the supply point and reservoirs to insure that a sufficient amount of water can reach the storage tanks during the refilling period to provide the required supply for the following day. As mentioned earlier, demand variations are critical in the design of water treatment facilities as well as other waterworks facilities. The demand variations for the maximum day and maximum — month expressed as a percent of the average day demands are shown in Table 4 for the past ten years. The maximum demand periods were established after a thorough examination of daily — pumping records. The average day demand is also shown in the table expressed in million gallons per day. The design value for the maximum day shown in Table 4 can be used as a reference for _ any projected water demands computations in future studies. 1998 Water Supply and Distribution Plan 21 TABLE 4 CITY OF CHANHASSEN PAST TEN YEAR WATER DEMAND VARIATIONS 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 Design Max.Month(%) 172 174 224 193 156 121 200 153 178 226 200 Min.Month(%) 57 59 62 47 72 78 54 69 61 67 63 Max.Day(%) 290 300 252 246 270 137 175 249 235 302 300 Avg.Day(MGD) 1.08 1.12 1.33 1.19 1.29 1.20 1.73 1.71 2.13 2.06 N/A Avg. Day per Capita Total 136 130 138 123 107 92 124 115 135 126 Use(g/c/d) Avg.Day per Capita Resid. N/A N/A N/A N/A 88 64 71 75 95 85 Use(g/c/d) Pop.Served(Est.; 7,930 8,620 9,630 9.700 12,100 13,000 13,940 14.910 15,800 16300 WATER DEMAND BY CUSTOMER CATEGORY Analysis of past water usage by customer category provides additional insight into how water is being used in Chanhassen, and where potential for conserving water may be found. Table 5 summarizes water usage by customer category. Figure 4 shows the water usage by customer category for 1997. By computing the average percent total of water use from 1993 to 1997, it can be seen that 2/3 of the water demand comes from the residential sector. In addition, Table 5 shows that the commercial and industrial water use is increasing. As the City develops toward saturation this increase in commercial and industrial usage is expected to continue. "Unaccounted for water" is the water that is lost or unaccounted for due to water main leaks, main flushing, new construction, breaks, meter inaccuracies, etc. The unaccounted for water in Chanhassen is primarily below the AWWA recommendation of 10% or less. This is discussed in greater detail in the water conservation plan. 1998 Water Supply and Distribution Plan 22 m 0 0 0 0 0 iQ ,a U) 4 4c N ? elle U) C'') N O U) _ 00•,2 n O C N O c E v cc, m N n E c ir a _ , C'-'3- r CO CD CO — i O C) CO C' r C.) 13 0 O CO r N N • op co O co O m 4 U) co n CD C9 O O U) 4 co co n CU 1-- '-- � O C`7 00 C o • ° 0 — O O U C) N 4 r co O O t1 C') O • C7 LO O CO C') CO NiNi O N r CO N LO r N N C') C'') O O U) CD N U) T CS o N r r r r - 8 ;_- , Ti) ,O '=O CO CO CO U) O CO O CO CO U) CO CO N M CI r CO V co 0 C) CO CD U7 U N cC7 C) CO CO C) cr) u) N000C') C') C) co N Q) C') r C') mU) cD o U) O Cn r O Nr r in r r in CO CO O r r CO r " U) U) CO O Q) L c0 2 Cn O N Cn tO cO 0 0 0 0 0 0 CO O U) N t- O4 4 4 N M 4 r r N N CO r N CO CO 01 N N N CO r N Cr 4 ,_ r N v C) T O .r c O CC) - U Cn _ O co co O U) O T c CO 1— 6 CD CO N CO [p O 13 ..... i F.- d cc E — E •c E N N N CO O CD N r CD o N n CO G O O N CO v 0 N C) O LC) 0 & �j0 ,� � o) r � � m � � Q) o � 6Cad00mn �eztct0 rCC)) I- c N O ,- m n N 0 0 CO T CO —* O Qi N N ri O O CD O T O) O a CO C r V N Cn N Lt, CC E ' O a 6 _ o m n 0am o) d c• F- o o r o 0 soO o . ;:. I- O N U) CO r 0 N •Ct N CO N CO LO O CO Cn 0 0 0 U) U) N r C 0 to 0 C') r CO N N CO 0 0 LO N U) a O v O) co n LO 0 O CO m Q) C7) N O CD O r r C) N CO N N 0 C7 U) CO V' CO N Ch C7 CD 0 U) O O O r M * r r r cr r r T. N CD r r r N N r r NCD _ CO O O V N N r m F"' coOcni) coNn c c ° 'CS _ N O N O N N 0 CD ,D0) OD Lo C') on O r CD r C') O O r N n C') CO,co CC (5t• I OCD co O ° cn O a) r-- co O N. N CD N CO 0 CD CD r m r CO n _ N N ad N csi T O co O N T O I,: U) C7 N T cNi C O N N r 0 co N CO n N co CO ch N tl) r c CD O ,- U) O r In y in C N �C O L U) C y1:3 13 L h -El C "d L a r N r) c r N C') v r N C) - r N C') r N C) V v. N. r ` C) Q Cr) r 0 .-• 01 .r 0 O CEJ QO) O 01 O Q) O O 0 O) f"' >" r I— r F-' r F- r — PROJECTED WATER USAGE A Cybernet computer model of the existing water system was utilized. The model demands were checked with the existing connections to the system to verify the accuracy of the existing model. Future water usage was then added to the model as described below. Future water usage is projected according to population, land use, and water use trends. Peak demands vary with land use. High peaks are experienced in low density areas during hot, dry periods due to extensive lawn sprinkling, while usage in high density areas depends on human consumption to a greater extent. Commercial and industrial areas are much more stable and although the usage is very high,the peaks are comparable to those in residential areas. Pillsbury is the largest water user with a 1997 water use of 5.87% of the total water pumped. No other large volume customers consume more than five percent of the total production. Existing 1997 demands for the ten largest water users in Chanhassen are presented in Table 6. Table 6. Existing Demands for Large Users Users 1997 (Gallons/Year) Pillsbury 44,030,000 Redmond 19,744,000 Rosemount 17,517,000 Byerly's 5,611,000 Country Suites 5,255,000 The Press, Inc. 5,223,000 Instant Web 4,570,000 Victory Envelope 4,479,000 Browns Standard & Car Wash 4,289,000 Richfield Bank 3,575,000 Each of the land use categories in Table 1 was examined with consideration given to population density, area to be sprinkled and other activities likely to occur compatible with projected land usage. Demand rates were then developed which were related back to unit demand rates per acre for uniformity. The resulting rates, which were used in analyzing Chanhassen's water system, are presented in Table 7. 1998 Water Supply and Distribution Plan 25 TABLE 7 FUTURE DEMAND RATES — Land Use Density Demand Rates (GPM/Acre) Type Person/Acre Average Day Max. Day Max. Hr. — Res-Large Lot 1.6 0.12 0.37 0.73 Res.-Low 7.74 (5.76 existing) 0.48 1.45 2.90 — Res.-Med. 15.0 0.89 2.66 5.31 Res.-High 17.0 0.94 2.83 5.67 Comm./Ind./Off. -- 1.04 2.60 5.21 Park/Open Space -- 0.17 0.43 0.87 Public -- 1.04 2.60 5.21 — Total water usage for designated discrete points of demand on the water system was — determined for the purpose of hydraulic analysis and system design. This was accomplished by dividing the City into sub-areas whose total demand was assumed to be located at a designated _ point in each sub-area. The sub-areas were then further subdivided into the various land use categories, based on the City of Chanhassen year 2000 Land Use Plan. By applying the unit demand rates from Table 7 and the demands from the existing model, the total demand for each subarea was developed. The point demand rates for the entire water system are presented in Appendix A. The point designations in Appendix A refer to points on Figure 8 at the back of this — report. Estate land use has been included in this report. For the purpose of phasing additions to the system, population projections were used in — conjunction with per capita usage to project probable water demand rates. Present water usage per capita (for users connected to City water) is approximately 129 gallons per capita per day _ (gcd). It is anticipated that the per capita consumption will increase over the next twenty years. This increase in per capita consumption is anticipated to result primarily from an increase in the — number of water consuming commercial and industrial businesses, and only slightly as an increase in the per capita domestic water consumption. The normally expected increase in domestic water consumption associated with improved economic conditions and greater use of water-consuming household appliances is expected to be curtailed by water conservation measures (such as sprinkling bans)and designs. — Increased commercial and industrial consumption is expected to raise the per capita demand from its present rate of 129 gcd to the anticipated ultimate rate of 164 gcd. Based on a projected — connected population of 20,730 in the year 2000, the average day demand is expected to be approximately 3.0 MGD with a corresponding maximum day demand of approximately 8.5 MGD. — 1998 Water Supply and Distribution Plan 26 Anticipated average and maximum day water demands are presented in Table 8. The maximum day water demands are used for the sizing of supply facilities. A record of actual maximum and average day demands should be charted to aid in the sizing and phasing of future facilities. The ultimate maximum day demand is estimated to be 16.6 MGD. For the estimation of this ultimate maximum day demand, sprinkling restrictions were not applied. Water usage for fire demand is also a vital consideration in the design of a water supply and distribution system. Fire demand varies greatly from normal usage in that an extremely large quantity of water is required from a single demand point in a very short time. The quantity of water used for fires is almost negligible when compared to other usage categories, but because of the extreme rate of usage during an emergency situation, fire demands frequently govern design. The Insurance Services Office (ISO) recommends that a system the size of Chanhassen's be capable of delivering a fire demand of 750 gpm to 6,000 gpm for varying duration's depending on the rate of demand. However, ISO doesn't provide premium deductions for providing fire demands over 3,500 gpm. Recent experience with many commercial and industrial users has shown that 2,000 gpm to 3,500 gpm is usually a sufficient flow rate to operate their sprinkler systems. Residential areas require a flow rate of 500 gpm to 1,000 gpm dependent upon the housing spacing. Available fire flows were checked at various locations in the system for both the existing system and the saturation design system. The following fire flows were used in the design of the Chanhassen's water system. Land Use Required Fire Flow(gpm) Duration(hrs) CommerciaNndustrial 3,500 3 Institutional\Public 3,500 3 Residential 1,000 2 1998 Water Supply and Distribution Plan 27 TABLE 8 CITY OF CHANHASSEN — PROJECTED WATER DEMANDS Average Per Capita Avg. Day Max. Day _ Year Average Population Demand Demand Demand Ending Population Served (gcd) (MGD) (MGD) 1997 17,570 * 16,300 129 2.1 6.3 1998 18,320 17,100 138 2.4 7.0 — 1999 19,070 17,950 147 2.6 7.7 2000 20,730 19,700 154 3.0 8.5 — 2001 21,400 20,400 154 3.1 8.9 2002 22,090 21,140 153 3.2 9.2 _ 2003 22,800 21,900 152 3.3 9.5 2004 23,530 22,680 150 3.4 10.6 2005 24,270 23,600 147 3.5 13.3 2010 27,100 36,600 162 4.3 14.6 2015 31,480 31,000 163 5.0 15.1 — 2020 (Ult.) 35,400 35,400 164 5.8 16.6 * City Estimate 1998 [Vater Supply and Distribution Plan 28 EXISTING FACILITIES RAW WATER SUPPLY The Twin Cities Metropolitan Area is underlain by geological formations that are capable of yielding large volumes of water. These formations were deposited in a trough that resulted in a unique dish-shaped geological structure centered below the Seven County Metropolitan Area. The Twin City Artesian Basin contains a total of six aquifers. Four of these aquifers, the Ironton-Galesville, the Franconia, the St. Peter, and the Platteville-Decorah, are minor aquifers. The major aquifers are the Prairie du Chien-Jordan and the Mt. Simon-Hinckley. The area also includes numerous smaller glacial drift aquifers. The Prairie du Chien-Jordan is the major aquifer in the Seven County Metropolitan Area, supplying approximately 75% of the area's groundwater. The majority of the remaining groundwater is supplied by the Mt. Simon-Hinckley aquifer. Where the Prairie du Chien-Jordan aquifer is overlaid by the St. Peter formation and the full thickness of the aquifer can be developed, well capacities can reach 2,500 gallons per minute (GPM). Where only the Jordan formation can be developed, the well capacities will usually fall into the range of 1,000 to 1,200 GPM. Hinckley wells can generally be developed to a 800 - - 1000 GPM capacity. The large drawdown experienced with Hinckley wells causes higher pumping costs. Also, because the Hinckley formation lies beneath the Jordan and Franconia- - Ironton-Galesville aquifers, Hinckley wells are more expensive to construct and operate than Jordan wells. The City of Chanhassen presently obtains its raw water supply from shallow drift aquifer wells and deep wells into the Prairie du Chien-Jordan aquifer. The water is pumped directly into the distribution system following chlorination and fluoridation at each well house. There are seven existing wells that serve the City of Chanhassen. A summary of the existing wells is presented in Table 9. The capacities of the wells vary from 700 to 2000 gpm depending on the size of the well and the structure of the geological formation at each site. The school well is manually controlled and used to supplement the high service area during summer peak demands. Since it is not automatically controlled, it has not been included in the capacity calculations. The total existing well capacity with all wells operating is 6,875 gallons per minute (gpm) or 9.9 million gallons per day (MGD), excluding the school well. Total firm capacity is defined as the capacity available with the largest well out of service. Existing total firm capacity is 4,875 gpm (7.0 MGD), excluding the school well and Well No. 7. Well No. 7 was put into service in 1997 and is capable of pumping 2,000 gpm but is currently set up to discharge 1,000 gpm due to the size of the main to the distribution system. With Well No. 7 VFD (variable frequency drive), when the new Hwy 41 Tower (High Zone) is constructed, will be increased to the 2,000 gpm. 1998 Water Supply and Distribution Plan 29 Well No. 7, Well No. 5 (installed in 1989) and Well No. 6 (installed in 1991) were installed to provided needed capacity to meet maximum day demands. Well No. 3 was replaced with a new — pump and the VFD in 1996. The VFD will allow Well No. 3 to pump 1,000 GPM to the High Zone in case of emergency and during times of maintenance and repainting of the existing 0.2 MG Tower. TREATMENT Well Water Quality — Test results on Chanhassen's raw water supply are presented in Table 9. The water generally is very hard containing from 235 to 470 mg/1 of total hardness. Wells 2, 3, 4, and 7 have iron — concentrations above the Secondary Drinking Water Standard of 0.3 mg/1. Iron and manganese are first formed within a water supply in a "dissolved" form, but are "oxidized" out of solution (or — changed into a solid form) by oxidizing agents such as oxygen. - - - 1998 Water Supply and Distribution Plan 30 TABLE 9 WELL AND WATER QUALITY DATA 2 3 4 5 School 6 7 Unique Well Number 220976 200195 180913 47130 200810 494519 54154 8 5 Year Installed 1969 1973 1981 1989 1963 1991 1997 Aquifer Drift Pdc/Jor Pdc/Jor Drift Pdc/Jor Drift Pdc/Jor Well Field Lotus Galpin Lucy Lotus Hwy. Lotus Hwy. 41 41 Casing Depth- Ft. 246 317 289 185 419 175 344 Total Depth- Ft. 471 500 478 215 520 215 504 Size 20" 16" 18" 12" 6" 12" 18" Static Water Level - Ft. 136 154 90 132 170 130 141 Drawdown- Ft. 15 16 28 10 8 39 Drawdown at gpm 1000 10(X) 975 700 1200 2000 Peak Demand Capacity-gpm 1000 1000 975 700 250 1200 2000 WATER OUALITY Date of Test 5/90 8/90 8/90 4/90 Not 8/91 3/96 Avail Ph 6.8 7.2 7.3 7.4 7.6 Alkalinity(2) 325 235 330 340 390 281 Total Hardness(2) 330 235 325 340 470 251 Chlorides 0.5 1.0 1.0 2 3.8 <3.0 Iron 0.3 0.7 1.2 < 0.05 .13 .373 Manganese <0.05 <0.05 <0.05 .38 .251 (1) Average pumping rate (2) Expressed as CaCO(3) NOTE: All constituents except Ph are reported as mg/1 unless otherwise noted. Well No. 1 has been abandoned. 1998 Water Supply and Distribution Plan 31 Dissolved oxygen, normally present in the water, combines with the dissolved iron and manganese to form insoluble oxides or solid particles in the water. These particles precipitate from the water and can accumulate in the distribution system particularly in areas of low demands. When demand increases or when the system is interrupted for some reason, red water problems may — occur which cause staining of washed clothing and plumbing fixtures. The color of the water makes it objectionable to drink and brings about questions as to its bacteriological quality. The City's maximum concentration of iron is 1.2 mg/1 at Well 4. Wells 2, 3 and 7 also have elevated iron levels. This is typical of water taken from the Jordan aquifer. Well 6 (Drift) and _ Well 7 have an elevated manganese level of 0.38 mg/1 and 0.251 respectively. This is far above the Secondary Drinking Water Standard of 0.05 mg/1, which is defined as an aesthetic concern and not health related. At some time it may become desirable to remove these constituents or add polymers to prevent the iron from oxidizing. A section on potential water treatment is presented later in this report. — It is reasonable to expect that future wells in both the Jordan and Drift aquifers would have similar characteristics to the existing wells. STORAGE Maximum hour demands are supplied through a combination of water from the supply facilities and water drawn from storage reservoirs on the water distribution system. Although the rate of consumption is high during periods of maximum hourly demand, the duration of the extreme rate is relatively short. Therefore, a moderate quantity of water withdrawn from storage reservoirs strategically located on the system assures satisfactory service, minimizes the total — maximum hour pumping and transmission main capacity required, and permits more uniform and economical operation of the system and pumping facilities. _ Storage on the system is also an important factor in insuring reliability of service during emergencies resulting from loss of power, temporary outages of water supply facilities, and fire _ demand. The storage allows these fluctuations in water demands to be met without having additional pumping capacity in reserve which would be sitting idle most of the time. Water from storage is fed into the system by gravity. Two types of reservoirs feed water into the system by gravity. These are classified as either ground reservoirs with the floor resting on the ground or as elevated reservoirs with columns supporting the tank. A ground reservoir may also be constructed at an elevation that requires a booster station to pump water into the system. The City of Chanhassen currently has 1.8 million gallons of usable storage on the system. A — summary of these facilities is presented in the following table. 1998 Water Supply and Distribution Plan 32 TABLE 10 EXISTING STORAGE FACILITIES Usable Emergency Storage Storage High Reservoir Reservoir Volume Volume Water Year Site Location Type (MG) (MG) Level Constructed I West 76th St. Elevated 0.1 0.0 1120 1965 II Murray Hill Rd. Elevated 0.2 0.0 1200 1972 HI Powers Blvd. Ground Res. 1.5 2.0 1120 1988 The high water level for all the tanks in the low pressure zone is 1120. The high water level for tanks in the high pressure zone is 1200. Both existing and proposed water storage locations can be found on Figure 8 at the back of the report. The ground reservoir located at Powers Blvd. is a 3.5 million gallon reservoir but only 1.5 million gallons are useable in the normal operating pressure ranges within the City. * A 1.5 MG elevated reservoir located in the Arboretum Business Park is currently under construction and is scheduled to be operational by July 1999. 1998 Water Supply and Distribution Plan 33 DISTRIBUTION SYSTEM The existing distribution system consists of lines that vary in size from 6 inches to 24 inches in — diameter. The majority of the mains are ductile iron pipe, although several older areas of the City have cast iron mains. The distribution system currently receives water from two well fields. One well field is located at the south end of Lotus Lake and draws water from a drift aquifer. A second well field is adjacent to Galpin Boulevard (north of Highway 5) and draws water from the Jordan aquifer. A network of large distribution mains extend from the well fields to other points of the system and to the storage reservoirs located throughout the City. The existing distribution system is shown on Figure 8 at the back of the report. The existing water system operates under four pressure zones. The low service area is served — by Wells 2, 3, 4, 5, and 6 and by a 100,000 gallon water tower and a 3,000,000 gallon ground storage reservoir (1,5000,000 gallons usable storage). Wells 2, 3, 4, 5, and 6 are controlled to maintain a water elevation in the two storage tanks near 1120. This elevation provides adequate pressure to serve the users in the low pressure service area. The high service area is served by Well 7, the school well and a 200,000 gallon water tower. — Well 7 is controlled to maintain a water elevation in the water tower of about 1200. The school well is used in the summer to supplement the high service area. The school well does not have — automatic controls, but is manually started and stopped during high consumption periods. The third service area, the Lake Minnewashta service area, is served via a pressure reducing — valve from the high service area. The pressure reducing valve reduces the pressure by about 35 PSI to serve the lower elevation homes to the North and West of the Lake Minnewashta area. The fourth service area, the Lake Riley service area, is served via a pressure reducing valve • from the low service area. The pressure reducing valve reduces the pressure by about 30 PSI to serve the lower elevation homes to the North and West of the Lake Riley area. — 1998 Water Supply and Distribution Plan 34 ADEQUACY OF EXISTING FACILITIES The existing water supply and distribution system for the City of Chanhassen has served the various water demands quite well. Scheduled improvements in the supply, storage, and distribution facilities have proven to be cost-effective and timely. The existing wells have met supply needs. Currently Well No. 7 is operating at less than capacity until development in the area increases demand. As the system expands, the high zone will be looped to the south, and the well will be increased to the 2,000 gpm peak demand capacity. The existing storage facilities provide satisfactory static and residual pressures to all areas within the City. The existing distribution system supplies adequate flow and pressure throughout the majority of the system. The following Table outlines the areas where the available fire flow is below the desired flow at 20 psi. Table 11. Existing Fire Flows Junction Land Use Desired Available Junction Land Use Desired Available Node Type/Location Flow flow Node Type/Location Flow flow @ 20 psi @ 20 psi 1 Residential 1,000 998 14 Residential 1,000 947 Hwy.5 Hwy.7 501 Residential 1,000 0 510 Industrial 3,500 3,050 — Longacre Dr. Lyman Blvd. &Hwy.41 & Audubon Rd. 631 Industrial 3,500 3496 632 Industrial 3,500 2,637 Hwy 41 & Hwy 41& 82nd St. 82nd St. 633 Industrial 3,500 3,087 640 Residential 1,000 143 Hwy 41 & Longacre Dr. 82" St. & Hunter Dr. AU fire flows are expected to improve above the desired flow when the ultimate system is completed. The available fire flows will be above 1,150 gpm for nodes 1 and 14 when the new 12" water main is installed along Highway 5 in 2000 and 2001, which will complete the loop around the Minnewashta lake area. The extremely low available fire flows at nodes 501 and 640 are due to the area is currently in the high zone but are being fed from the low zone. The available fire flows will improve above the desired flow when the Highway 41 main is connected and the area fed directly from the high zone. The existing wells supply water and have met supply needs. Modifications proposed to strengthen the existing system are discussed in the following section. 1998 Water Supply and Distribution Plan 35 PROPOSED FACILITIES — SUPPLY-STORAGE CONSIDERATIONS Supply capacity, storage volume, and distribution system capacity are interrelated to a great degree. Reservoirs act as additional supply sources during peak periods when the primary supply source is incapable of meeting the demand. Thus, the storage tends to stabilize the peaks in water demand and allows the system to produce water at a lower, more uniform rate. The distribution — system must be capable of carrying the flows from both the supply source and reservoirs without allowing pressures to drop below approximately 35 psi. Static pressure should be kept about 40 — psi, if possible. The system must also be capable of conveying water from the source of supply to the reservoirs for storage without allowing the development of high pumping heads and high static pressures in the system during low usage periods. There are an infinite number of combinations of supply and storage that can be used to meet peak water demands. Previous reports for the City (Orr-Schelen-Mayron - 1985, and Liesch - 1990) have discussed differing philosophies of using storage and production capacity. The ideal combination is found where the sum of the cost of all the facilities in the system reaches a — minimum. A close approximation of this point can be obtained by an analysis of supply and storage costs. For the vast majority of metro area communities, the ideal combination of supply and storage is found when the supply equals 100% of the maximum day demand. Based on our analysis and discussions with City Staff, we recommend that the City of Chanhassen system have the capacity to produce water at a rate equal to 100% of the maximum day demand. For the ultimate system, this is 16.6 MGD. — The amount of storage required for the ultimate Chanhassen water system was found by looking at the maximum day demand variation curve and at fire flow demands and extended use — modeling. The shadowed area above the maximum day demand line in Figure 5 represents 24% of the maximum day total demand. This percentage takes into account hourly fluctuations and will have to be provided by storage facilities. In addition to that, a safety factor is required to account for fire flows and unusual demands on the system. This safety factor was estimated to be 6% of the maximum day total demand, and was based on a 6,000 gpm fire flow sustained for 6 hours. A total of 30% of maximum day demand for required storage or 5.0 million gallons of total effective storage for the ultimate system would be a minimum requirement depending on extended period modeling. Effective storage is considered to be water available for use at an adequate residual pressure which is water not lower than 40 feet below the system high water — 1998 Water Supply and Distribution Plan 36 level. As indicated later in this report, the modeling indicated that slightly more storage was required. HYDRAULIC ANALYSIS The Chanhassen water system was analyzed in detail using a hydraulic computer model known as Cybernet. The model describes the entire system, including wells, pumps, reservoirs, booster stations, pressure reducing valves, and distribution mains and analyzes the system through a time simulation during the design maximum demand day. The Cybernet model using the Hazen-Williams energy loss formula and the Hardy Cross procedure performed hydraulic analysis. The Hardy Cross procedure is an iterative process in which both flows and energy losses are balanced throughout the entire system. A time simulation analysis examined the system on an hourly basis over the entire maximum demand day, including peak demand periods, reservoir-filling conditions and critical pressures. The analysis requires that a demand curve be developed for the maximum day. This curve was developed from a review of well and tank operations during the maximum day demand and is presented on Figure 5. Similar curves were developed for the second and third maximum days. A peak hourly demand that is two times the maximum day demand is incorporated into the curve. Input for the Chanhassen computer model includes pipe sizes and lengths,point supplies and demands, storage reservoir characteristics, pump performance curves, and ground elevations. A summary of the input demands is presented in Appendix A. The model then computes data for various times of the day based on the demand curve. These data include pipe flows and velocities, energy losses, pressures at each demand point, pumping rates, and storage reservoir levels. Analysis of these data facilitates the design of an economical and adequate water system. A summary of the output file is presented in Appendix B. 1998 Water Supply and Distribution Plan 37 • Q, T - 11 1 ff i E N i , .:. . . .... i i — 0 • . •• 4.......-.F 11 1 co 0 i 1 (� CD D i 1 (C co c, El — X _ 2! I i " II › •.,-, w ;l o � Z I � • E:... >- a. Yl (I) < I , C Q O tCi �: ::: no _ c N O N I o I I c w I o W ; a • i ! 00 I 1 1 I I I CD - p{] z rLu X O N M lCP O o 0 o O N PERCENT OF MAXIMUM DAY DEMAND MAXIMUM DAY DEMAND VARIATION n Bonestroo - Rosene is in CHANHASSEN, MINNESOTA FIGURE 4 Anderlik d Associates i WATER SUPPLY AND DISTRIBUTION PLAN RAW WATER SUPPLY Wells Required As discussed previously, the most economical way to meet the demand conditions in Chanhassen is to have a total well firm capacity equal to 100% of the maximum day demand. Peak demands will be supplied by storage on the system. For Chanhassen, at saturation development, the required total firm production capacity is 16.6 MGD (11,520 gpm). Total firm capacity is defined as the capacity available with the largest well out of service. Peak demands on the system will be supplied by storage. Two well field sites are shown on the water distribution system layout in Figure 8. The Lotus Lake site is the existing drift aquifer well field and the other site is the existing Prairie du Chien/Jordan aquifer well fields. Two well fields are proposed so the City has two distinct water sources. Clustering of wells into well fields (as opposed to spreading the wells throughout the City) is proposed to facilitate possible future central water treatment facilities. A drift acquifier well field near the south end of Lake Minnewashta was also considered. This location was eliminated because the Arboretum owns the most suitable property. It is recommended that the required ultimate production capacity be divided into 8.3 MGD (5,760 gpm) at the Lotus Lake Well Field and 8.3 MGD (5,760 gpm) at the Galpin Boulevard Well Field. As of 1998, there were six (6) operating wells located in the City. Future wells can be located at both the Lotus Lake and Galpin Boulevard fields. Approximately 7 additional wells will be required to meet the total production capacity of 16.6 MGD. This includes one standby well at each well field and assumes an average capacity of 1,000 gpm for all future Jordan and Drift wells. Future wells will be added as necessary by increased demand. Anticipated improvements are shown on Table 15. The estimated number of 13 total wells could be reduced or increased if the estimated ultimate population of 35,400 changes. 1998 Water Supply and Distribution Plan 39 Galpin Boulevard Well Field (Prairie du Chien/Jordan) Required Capacity 5,760 gpm Present Firm Capacity (#3) 1,000 gpm (With Well No.7 and School as standby) _ Capacity Required 4,760 gpm = 3 wells @ 1000 gpm, 1 well @ 2000 gpm Total Additional Wells 4 Well Spacing 1000-1200' (Estimated) A schematic of the Galpin Boulevard Well Field is shown on Figure 6. Note that Well No. 7 — feeds the high pressure zone. At saturation, a total firm capacity of 1.87 MGD (1,280 GPM) is required in the high zone. It is anticipated that the proposed Well No. 8 will have a capacity of — 2,000 GPM, which can also be provided at Well No. 7. This will provide a total firm capacity of this zone of 2,000 GPM which will be over the recommended 1,280 GPM. All three of the additional wells must be constructed in the low zone in order to attain the required firm capacity of the low zone. Most of the future Galpin Boulevard Well Field wells will be Jordan wells. However, it is anticipated that a future groundwater supply study of the area may identify drift acquifer locations that can also be used. A combination of drift and Jordan wells would be best to safeguard against — well contamination and water quality. Lotus Lake Well Field (Drift) Required Capacity 5,760 gpm Present Firm Capacity (#2,#4 &#5) 2,675 gpm (With Well No. 6 as standby) Capacity Required 3,085 gpm = 3 wells @ 1000 gpm Total Additional Wells 3 • V Well spacing (To be determined) A schematic of the Lotus Lake Well Field is shown on Figure No. 7. Placement of future wells for the Lotus Lake Well Field is somewhat limited since the area is mostly developed. Vacated — right-of-way due to the relocation of T.H. 101 may provide space for future wells and possible future treatment. _ 1998 Water Supply and Distribution Plan 40 RECOMMENDATIONS — The City of Chanhassen should initiate action to acquire additional well sites either prior to or in conjunction with the development of the adjacent areas. Until a future decision is made — regarding water treatment, each well field plan should reserve a 5 acre site for a potential water treatment plant. The possible future raw water collection main should also be designed considering the potential plant site. — One factor in siting wells is the distance the wells must be spaced to minimize the influence between wells. The City should conduct an influence test on both well fields to determine the — optimal spacing for future wells. Refer to the 1996 Well Field Study and Water Management Plan for further well recommendations. — The second factor in siting future wells is the extent of the aquifer. The Prairie du Chien/Jordan aquifer appears to be highly productive in the Galpin Boulevard Well Field. _ Recently, Well No. 7 was installed and has an ultimate capacity of 2,000 GPM. Depending on the spacing requirements, additional well sites should be able to be located in this vicinity. The extent of glacial drift aquifers are more limited than the Prairie du Chien/Jordan aquifer — and the ability of drift aquifers to produce water can vary widely from one location to another. It is recommended that the City conduct a groundwater supply study of the Lotus Lake Well Field — to identify the most favorable sites for future wells. Figure 7 identifies possible well sites determined in the 1996 Well Field Study and Water Management Plan. — The first phase of a groundwater supply study is a resistivity survey. This procedure "maps" the drift aquifer and gives an indication of more favorable sites for additional testing. The _ resistivity study is followed by small, test well construction, to verify the results of the resistivity study. Finally, it is imperative that future well sites in both well fields be controlled such that the quality of the groundwater is maintained. We recommend that a well head protection plan be included in the well field planning. The land in the proposed Galpin well field is presently largely — undeveloped. The City has a real opportunity to plan development to minimize threat of contamination of the aquifers. Also, it is likely that future legislation will make well head — protection plans mandatory and construction of future wells will require the completion of a comprehensive well head protection plan. 1998 Water Supply and Distribution Plan 41 - —81M--`—ism --: —ma -r am ow i so ams am r _ _ • _•=�'_:v': .-7=r+.< - - % { :. COLONY , �- POINT - • • L �^': Ewa�: -.. . I w {s by u•?;.1..%. ,l.y t4 J- t l*al,,i;:nir, f • - F4 r; .,,;;,� _ ._, :_, `mss,, Tom:?:=y, £ -.ter+ A3 . -. --- • • < .. -- W W MASS -- — • 2 : .A4 ^ F3 • ae - e- y�, �y • F2 e2131 3 • - - - - - . ._ _..- - S.SHORECT.c" I ---------------- i SOUTH LOTU j Fl _ �! VL. �y 63 p• it W77THST tl'� 55 B4 i CHANHASSENMEADOWS , i 1 ' •PHASE IV • D6 _-_ i _ = 4 85 i I I, ? j V. - -- V .- - —. NEW HAVEN ;' !- • • D5 _____i i i—, • I PAUL'S 1 _I '1; • " .=•11i • 1 ; i I> IAdDTImN ` 1 I I1 ' D3 __-- —,< I_.t. . l.. I ' • oD4 - –r---- - -- —ip2 • N0.5 —--L -.D7 - - - -- STATE H _• � ' • D1, f: - - CITY OF FIGURES. — CHANHAssE LOTUS LAKE WELL FIELD CHANHASSEN WELL FIELD STUDY 1:1 Andwak 6 1 INCH=200 FEET POSSI-- UTURE WELL SITES SHOWN. 11 Assodates — I UP TO • AL FUTURE WELLS WILL `mO~n• `u • -- -- BE REQ. 'ED,ONE FROM EACH GROUP JULY 1998 !DO KO KO OF POTENTIAL SITS A.F - .------•-.---- - - + = Wit. 122_ i 12" - ,' --- - WELL 7 j _ • ; : illor . i • 1 1 1 r- 1--4"1—•_ .�i" ,- I HIGH i PRESSURE 1r 1� _. ZONE • . 1 '-f----- LOW 1 :� _._-P_RFSSURE 1 „4� ..: . , - i j ZONE , :� 24" 1 , , i 'I • , ;' / I / POSSIBLE : 4271 w• • I FUTURE TREATMENT I ` PLANT SITE i • �` / .i 1 -, :i 16 F ; '/ - WELL 3 • X28.. ..! . . _ _ . i' (629D �. 1 _�, -I 4i • -I ', t •l r , • ♦ i 'r I, f �• I T I , 24„ 8�,f' �r i = '! --- -./ -1 -1 1 -. -- - ' - Tf ._ ' 1`--- - 1.' I r �� . ...-. _ - - -- .i - 5.Q3'' r -/ lam- , ! _i • 1 . Ir 1 � '. ',1 ,- �``: ' ~ ' 1 •' ' --'moi._i_! _ 1 .1.1._.) 1--- 1 1 I -.--. ' i t---4 `h' CITY OF i FIGURE 9 CHANHASSEN GALPIN BLVD. AREA WELL FIELD j, sonestroo CHANHASS-N WELL FIELD STUDY , Rosene s 1 INCH.100 FEET 11 Assodstes POSSIBLE FU ' -E WELL SITES SHOWN IN ,,,,.,....1A,h...., RED. UP TOW OTAL FUTURE WELLS JULY 1996 •.i- I= ' 1� WILL BE RE. 0 'ED IN THIS FIELD. •GiA113ONOQMN7il WLMWOELL!.0 TREATMENT General The City of Chanhassen presently obtains its raw water supply from glacial drift aquifers and deep wells into the Prairie du Chien/Jordan Sandstone aquifer. Water obtained from the wells _ in Chanhassen is considered to be safe from pathogenic or disease causing organisms. Raw water in Chanhassen contains three areas of concern: high levels of iron, high levels of manganese, and hardness. The iron concentration in the City's wells ranges from 0.05-1.2 mg/l. Four of the City's wells (all in the Prairie du Chien/Jordan aquifers) have iron levels at or higher than the Secondary — Standard Recommended Levels of 0.3 mg/I. In addition, the Drift wells have a manganese content of 0.38 mg/1, which is far above the Secondary Standard Recommended Level of 0.05 mg/l. The iron precipitates from the water and accumulates in the distribution system particularly in areas of low demands. When demand increases or when the system is interrupted for some — reason, red water problems can occur which cause staining of washed clothing and plumbing fixtures. Customer complaints can be minimized somewhat by frequent flushing and cleaning of lines in problem areas. Because of public complaints and/or high maintenance costs, iron and manganese treatment may become necessary. Although a detailed analysis of the treatment alternatives is beyond the — scope of this report, the following paragraphs describe some factors to consider as they relate to the planning of the overall distribution system. — Iron and manganese may be removed at a water treatment plant. Removal could be accomplished at a large, central plant or two smaller facilities, one near each well field. A central _ facility would generally be less expensive to build and operate than two smaller facilities. However, the two smaller plants could be designed more aquifer specific than one plant treating water from both aquifers. Also, plants at each well field would minimize the amount of raw water lines. For this report we are assuming that two separate treatment plants would be constructed if necessary. The treatment plants would be sized to treat approximately 80% of the maximum day — demand. Storage in the distribution system and at the water treatment facility itself would allow the facility to provide 100% treated water during all but the largest peak demand periods. This — level of treatment allows for significant cost savings due to the smaller plant size requirements. Since the duration of extreme peak demands are relatively short and the plant would supply a _ large percentage of the water required, the mixture of treated and non-treated water in the system should hold iron and manganese concentrations at acceptable levels. An alternative method for control iron and manganese is to add polyphosphates or sodium silicate to the water in the distribution system. These chemicals are added to the water at the well pumphouse with special injection equipment. Polyphosphates keep the iron in suspension so that — 1998 Water Supply and Distribution Plan 44 — it does not settle out in the system. Unfortunately, polyphosphates are substantially less effective in keeping manganese in suspension in the distribution system. Also, the polyphosphates remain in the water through the wastewater treatment process and eventually become a source of nutrients in the Minnesota River. The City should continue to monitor the manganese levels at the two existing drift wells, and future drift wells. Continued high levels of manganese may necessitate a manganese removal plant at the Lotus Lake Well Field. Hardness is another water quality concern. The water in Chanhassen averages 270 mg/1 of hardness in the Prairie du Chien/Jordan aquifer and 405 mg/1 of hardness in the Drift aquifer. This is considered very hard by the United States Geological Survey standards. The most common objections to hard water are: (1) consumption of large quantities of soaps and detergents, (2) adverse effect on clothing and other articles being cleansed, (3) shortening of the life of pipes and fixtures, heating systems and boiler shells, and (4) unsuitability for many industrial uses. A home owned ion exchange (zeolite) softener or a rented softener can be employed to reduce the hardness of water at home. The cost of home softening is generally higher than softening in a municipal treatment plant. However, many communities rely on home water softening since it provides the citizens with a point of use option. Also, water softening at a central treatment plant will require the construction of lime storage ponds. These ponds require many acres of land and are somewhat of an eyesore. It is recommended that water softening in Chanhassen be accomplished at the point of use through the use of home softening systems. 1998 Water Supply and Distribution Plan 45 STORAGE General The existing and proposed storage sites for the Chanhassen water distribution system are shown on Figure 8. A total of 5.8 million gallons (MG) of effective storage at six sites is planned. As discussed previously, this is slightly more than the 30% volume that is typically estimated. When storage was analyzed during the extended use modeling, the storage of 1.5 MG at the Lyman Blvd tower was found to be insufficient and the tower went empty. Analysis and modeling proved that a 2.0 MG tower at Lyman Blvd would adequately supply the needed demand during extended maximum use. — The most important considerations in the selection of the type of storage facilities are safety, reliability and ease of operation. A gravity feed type of storage facility, either elevated or ground, — provides a safe and reliable source of water, is easy to operate and allows for smooth operation of pump controls. It is recommended that all of Chanhassen's future storage be gravity fed elevated — reservoirs. Future Water Storage Facilities Table 12 shows the existing and proposed storage facilities required to provide the ultimate required storage capacity of 5.8 million gallons. A total of 1.8 MG of usable storage presently — exists at three reservoir sites. Based on our analysis a total of 4.0 MG of additional usable storage capacity is recommended for ultimate design within the City: 0.5 MG in the High — Pressure Zone and 3.5 MG in the Low Pressure Zone. The new water tower under construction and scheduled to be operational by July 1999 is included into the 3.5 MG of storage required in the Low Pressure Zone. The added storage to both zones should cover the ultimate system demands for each zone. The 3.5 MG of storage in the Low Pressure Zone will meet the ultimate demand needs. In the future, when the Lyman Tower is required and design begins, the low zone should be analyzed to verify the 2.0 MG of storage is adequate. The availability of the 0.1 MG reservoir at West 76th St. still being in service will have an influence on the size of this tower as well. The proposed locations for the reservoirs are shown on Figure 8. — 1998 Water Supply and Distribution Plan 46 TABLE 12 CITY OF CHANHASSEN ULTIMATE STORAGE FACILITIES Service Usable Storage Site Area Type of Facility Capacity West 76th Street Low Existing Elevated _ Reservoir 0.1 MG* Murray Hill Road High Existing Elevated Reservoir 0.2 MG Powers Boulevard Low Existing Ground Reservoir 1.5 MG** T.H. No. 41 High Proposed Elevated Reservoir 0.5 MG Arboretum Low Proposed Elevated Reservoir 1.5 MG*** Lyman Boulevard Low Proposed Elevated Reservoir 2.0 MG TOTAL ULTIMATE STORAGE 5.8 MG * This tower may be out of service near ultimate service ** 3.5 million gallons total capacity *** This tower is under construction and scheduled to be operational by July 1999. The reservoirs have been located to take advantage of high ground, thus minimizing construction or pumping costs. They are also located at points within the distribution system which complement the primary supply points and thereby maintain more constant water pressure during peak demand periods. A total usable storage volume of 5.8 million gallons is proposed at the six storage sites. "- Development should be reviewed periodically to ensure that adequate storage is constructed prior to development. Based on the current population estimates and the projected per capita demand, the construction of the 1.5 MG storage facility in the Arboretum Business Park is under construction and will be in service by July, 1999. Phasing of tower construction is discussed in more detail later in this report. Analysis of the ultimate water distribution system indicated that all the reservoir sites were hydraulically sound and capable of meeting design residual pressures. The hydraulics of the proposed water system is discussed in more detail in the following sections. 1998 Water Supply and Distribution Plan 47 DISTRIBUTION SYSTEM General The proposed distribution system for the City of Chanhassen is presented on Figure 8 at the _ back of this report. The system covers the entire City and reflects changes to previous reports and layouts. Because the City's topography varies considerably, it is recommended the current system of two service zones be maintained to provide a static pressure range of 40-104 psi (pounds per square inch) and a residual pressure range of 25-105 psi for the maximum hourly demand. A — minimum static pressure of 40 psi is necessary for the operation of automatic sprinkler systems without a booster. The high water level of the high service area is 1200 feet and the high water level of the low service area is 1120 feet. The Lake Minnewashta service area will continue to be served via a pressure reducing valve _ off the high service area until it is connected to the service area along T.H. 5. This connection is planned for the year 2000-2002. Development in the lower areas in the south part of town (Intermediate Bluff Service Area and the Lower Bluff Service Area) will be served via a pressure reducing valve (35 psi reduction each) off the low service area. Development in the north and west portions of Lake Riley will be served via pressure reducing valves (30 psi reduction) off the — low service area as well. The distribution system analysis was performed under the assumption that there will ultimately be two well fields and potentially two treatment plants for Chanhassen. A strong network of trunk water mains extends in every direction from the well fields. Major mains _ connect the storage reservoirs and the well fields and, in most cases, are looped throughout the system in order to provide reliable service. A 12" line is shown at the Chanhassen/Chaska City Limits near T.H. 41. This line will serve as a major interconnection to Chaska's water system. In the event of an emergency, well field contamination or massive failure, the interconnection would be opened. The two systems operate at slightly different pressures (18-20 psi difference), but a direct connection would not cause any significant problems. The high water level of the Chaska zone is 1165 feet. The advantage to both communities is that three water sources (drift, Jordan and Hinckley aquifers) will be available to the two communities. Such system interconnections are also a major recommendation of the _ Metropolitan Council's "Metropolitan Area Water Supply Plan" and could someday be mandatory. Hydraulic analysis of the distribution system was performed by a Cybernet computer program, which is based on the Hazen-Williams pressure loss formula. The program employs an iterative process to balance both flows and pressure heads throughout the entire system. A time 1998 Water Supply and Distribution Plan 48 simulation analysis was utilized which examined the entire system under peak demand and also reservoir filling conditions. The program computed flow and residual pressures, which were then analyzed to locate problem areas. Water main sizes, storage tank characteristics and pump controls are then revised and the program is run again until the problem is corrected. Ground elevations as well as static and residual hydraulic grade lines and pressures are tabulated in Appendix B for points in the water system. These hydraulic grade lines and pressures are based on operation during maximum hourly demand. The time simulation computer analysis was used to design the ultimate water system. The types of alternatives that were tried during the several computer runs can be grouped into three categories: (1) Changes in size and location of the projected elevated tanks, preserving the ultimate total storage. (2) Changes in diameter of the proposed water mains. (3) Addition of new water mains. In looking at the different alternatives, the selected best possible option was a trade-off among the following parameters: a) Tank Operation: Including minimum level, ending level and total operation time for each tank. b) High Pressure Nodes: Identifying high pressure nodes during low demand periods. c) Low Pressure Nodes: Identifying low pressure nodes during high demand periods. d) High Headloss Lines: Finding lines with unusually high head loss per thousand feet that need to be replaced,paralleled, or redesigned. e) Fire Rows: Making sure that all nodes of the distribution system at saturation are able to get sufficient fire flows, while maintaining a minimum 20 psi residual pressure. Tanks have acceptable minimum levels, reasonably good ending levels, and considerably improved operating times. All areas are able to meet or exceed the following ISO fire flow recommendations while maintaining sufficient residual pressures. Area Fire Row (gpm) Residential 1,000 Commercial/Industrial 3,500 Public/Institutional 3,500 1998 Water Supply and Distribution Plan 49 Low Pressure Zones — Table 13 represents the lowest residual pressure at nodes (less than 40 psi) determined after — running the time simulation computer model of the ultimate water system on the maximum demand day. The node numbers in the Table 13 correspond to the points shown on Figure 8. — - 1998 Water Supply and Distribution Plan 50 TABLE 13 LOWEST PRESSURE NODES Minimum Node No. Pressure (psi) Time of Day 21 38 8:00 PM 121 39 11:00 PM _ 203 35 11:00 PM 206 32 11:00 PM 207 28 11:00 PM 215 36 10:00 PM 216 39 10:00 PM 268 39 11:00 PM 269 34 11:00 PM 302 36 9:00 PM 422 38 10:00 PM 423 35 9:00 PM 427 39 11:00 PM 428 39 11:00 PM _ 435 34 11:00 PM 502 37 11:00 PM 504 36 9:00 PM 609 38 10:00 PM 630 37 11:00 PM 631 30 11:00 PM 632 32 11:00 PM 633 28 11:00 PM 1019 29 11:00 PM 1022 35 8:00 PM 1998 Water Supply and Distribution Plan 51 High Pressure Zones Table 14 shows the highest pressure nodes (greater than 90 psi) determined after running the time simulation computer model of the ultimate water system on the maximum demand day. The high pressures during Midnight, all occur in the High Zone. This is due to the extra water being supplied in the High Zone (supply = 2,000 gpm, max. day demand = 1,280 gpm) which means the storage tanks in this zone remain fairly full, even during peak demands. If the VFD at the wells was reduced to near the max. day demand, then the pressures would be reduced below 90 psi. Individual pressure reducing valves may be necessary at some of these properties. The node numbers in Table 14 correspond to the points shown on Figure 8. TABLE 14 HIGHEST PRESSURE NODES _ Maximum Node No. Pressure (psi) Time of Day 202 92 7:00 AM _ 415 93 7:00 AM 416 93 7:00 AM 613 94 7:00 AM 1012 94 7:00 AM 27 93 Midnight 112 90 Midnight _ 119 90 Midnight 613 101 Midnight 637 94 Midnight _ 1023 91 Midnight High Headloss Lines —' Headloss greater than 5 feet per thousand is considered high. The majority high headlosses occur at the peak demand. A headloss of 5.62ft/1000ft occurs from node 1003 to 1004 at 8:00 PM. This main has a total headloss of over 8 feet. However, the sloping grade along this pipe makes this loss negligible to the residual pressures along the pipe. No other headlosses occur at or above the 5ft/1000ft in the system except at the short mains to the distribution system from Well No. 2 and Well No. 5. The losses occurring at these pipes are 0.8 and 1.6 feet respectively. 1998 Water Supply and Distribution Plan 52 WATER SYSTEM PHASING _ General Chanhassen's projected population in the year 2010 is 27,100. Based on the projected population growth and increasing per capita usage, additions to the supply and storage facilities were estimated until the year 2010 and are presented in Table 15. These additions will keep pace with the increasing needs of the community and at the same time maintain a desirable balance between storage and supply for economy and reliability. If growth rates deviate from the rates outlined in this report or if a major water consumer is added to the system, the phasing schedule should be revised in accordance with the latest available data. The data presented in Table 15 is based on the assumption that new wells will provide an _ average capacity of 1,000 gpm for all Prairie du Chien/Jordan wells and 1,000 gpm for future drift wells and that one complete standby well (1,000 gpm) will be provided at each well field. The next well is proposed at the Galpin Lake well field to balance the supply available from the two well fields. As indicated in Table 15, a 1.5 MG elevated reservoir is under construction in 1998 at the Arboretum low service area site. The need for this facility is based on requirements for storage on the overall system. A 0.5 MG elevated reservoir is planned for construction about the year 2010 at the T.H. 41 high service area site. The need for this facility is based on the storage requirements for the high service area. A 2.0 MG elevated reservoir is planned for construction about the year 2004 at the Lyman Blvd low service area site. The need for this facility is based on the storage requirements for the low service area. This facility should be analyzed further when nearing the design phase for possible reduction in size depending on actual land use development and any future changes to land use. 1998 Water Supply and Distribution Plan 53 TABLE 15 SUPPLY AND STORAGE PHASING Req'd 2 Existing Raw3 Maximum Day' Water Water Required 4Exist. -' Population Demand Supply Supply Storage Storage Phasing 5 Year Served (MGD) (GPM) (GPM) (GPM) - (MG) (MG) Schedule 1998 18.320 7.0 4,861 4,861 4,875 2.1 - 1999 19,070 7.7 5.347 5,347 5,875 2.3 _ 2000 20,730 8.5 5,903 5,903 5,875 2.6 2001 21,400 8.9 6.180 6,180 6.875 2.7 - 2002 22,090 9.2 6,389 6,389 6,875 2.8 2003 22,800 9.5 6,597 6,597 6,875 3.9 2005 24,270 13.3 9,236 9,236 7,875 4.0 - 2006 24,840 13.6 9,417 9,417 8,875 4.0 2008 26,000 14.1 9,778 9,778 9,875 4.0 2010 27,100 14.6 10,139 10,139 10,875 4.4 Ultimate 35,400 16.6 11,528 11,528 11,875 5.0 1. Estimated values based on population served and design values for per capita max. day demand. - 2. 100% of Maximum Day Demand as recommended in report. 3. Well capacities for all new wells are estimated at 1000 gpm without including standby wells. 4. Estimated value based on the ratio of total ultimate storage to total ultimate maximum day - demand (30%). 5. Indicates year in which construction should be started (Construction period: 1 yr. for well & reservoir, - Wells are scheduled to provide one reserve well (1000 gpm ea.) at each well field. 1998 Water Supply and Distribution Plan 54 ECONOMIC ANALYSIS COST ESTIMATES One of the basic objectives of this report was to determine the cost of completing Chanhassen's water supply and distribution system for use in determining trunk water charges and developing a Capital Improvement Plan. The cost estimates presented in this report were based on January 1998 construction costs and can be related to the value of the ENR Index for Construction costs of 6434.11 (December 1997, MPLS). Future changes in this index are expected to fairly accurately describe cost changes in the proposed facilities. During interim periods, between full evaluation of projected costs, capital recovery procedures can be related to this index. A summary of the estimated total costs of future water supply, storage, and trunk distribution facilities is presented in Table 16. Detailed cost analysis of treatment facilities was beyond the scope of this study and should be the subject of a separate report at the time that — treatment is being considered. Cost estimates for reservoirs include 30% for contingencies and administrative, legal,and engineering costs, while all other estimates include 35% for these items. Water mains smaller than 12 inches are considered to be lateral and were not included in the distribution system cost. Lateral benefits were not calculated and the distribution cost has not been reduced for lateral benefits. Appendix C shows a more detailed cost estimate. TABLE 16 WATER SYSTEM COST SUMMARY Supply $ 3,550,000 Storage $ 5,400,000 Distribution $ 5,695.000 Total Water System Costs $ 14,645,000 1998 Water Supply and Distribution Plan 55 CAPITAL IMPROVEMENT PROGRAM The installation of Chanhassen's trunk water system has proceeded rapidly and approximately 50% of the City is presently served with water. It is anticipated that growth of the _ water system will continue at a relatively rapid rate. A capital improvement program for the City of Chanhassen's water supply and storage system is presented in Table 17. The table shows the storage or supply facility added, the estimated cost, and the total expenditure for the time period. The capital improvement program has been based on the supply-storage phasing of Table 15, assuming the construction of Prairie du — Chien/Jordan and Drift Wells. Costs for the distribution system improvements have not been included in Table 17. Trunk and lateral distribution costs are dependent on the development patterns of the City. These costs can be added according to the development plan of the City. Refer to Appendix C for a detailed cost estimated for the individual pipe segments. 1998 Water Supply and Distribution Plan 56 TABLE 17 CITY OF CHANHASSEN CAPITAL IMPROVEMENT PROGRAM WATER WORKS SUPPLY AND STORAGE FACILITIES Year Improvement Estimated Cost 1998 Well No. 8 (Jordan) $ 550,000 _ 1.5 MG Arboretum Tower $2.000,000 Subtotal $2,550,000 1999 2000 Well No. 9 (Drift) $450,000 2001 2002 2003 Well No. 10 (Jordan) $550,000 2004 2.0 MG Lyman Blvd Tower $2,600,000 2005 Well No. 11 (Drift) $450,000 2006 Well No. 12(Jordan) $550,000 2008 Well No. 13 (Drift) $450,000 2010 Well No. 14(Jordan) $550,000 Ultimate 0.5 MG Hwy 41 Tower $800.000 Total Supply and Storage $8,950,000 Note: Distribution system improvements will be installed as development dictates. /998 Water Supply and Distribution Plan 57 WATER CHARGES The City of Chanhassen currently finance trunk water utility improvements by levying a unit connection charge at the time trunk service is provided. As part of this report, the City's Comprehensive Land Use Plan was reviewed (with information provided by the Planning Department) to determine the estimated amount of new hookups that are projected at ultimate development. The total amount of hookups was determined by assigning a minimum number of Residential Equivalent Units (REU's) to each type of land use based on the projected flow rates used in the overall system design. With the number of total estimated future hookups (REUs) and the total estimated future water system costs (Table 16), the cost per hookup was determined to be $1,584 per unit (Table 19). As per City — Ordinance, the Unit Rate of $1,584 is adjusted annually based on a January, 1997 Minneapolis ENR Index of 6434.11. a It is recommended that the resulting minimum area charge (REUs x Unit Rate) be levied when improvements are installed in the service area (Table 20). If additional units above the minimum per acre shown in Table 18 are platted, additional charges should be levied at the time of development. Similarly, additional charges should be levied at the time of development of commercial/industrial property if additional units (based on SAC units) are developed beyond the minimum of 4 per acre shown in Table 18. Table 18 on the following page presents a summary of the estimated REUs for the water system. The table includes estimated future chargeable units based on land use types for remaining developable land. The third column of the table lists the minimum number of REU's per acre for different land types. a a a 1998 Water Supply and Distribution Plan 58 TABLE 18 RESIDENTIAL EOUIVALENT UNIT (REU) SUMMARY Area Minimum Land Use Type (Acres) REU/Ac. REUs Large Lot Density 947 0.4 379 Low Density 986 2 2,028 Medium Density 255 5.4 1,377 High Density 34 9 306 Commercial/Industrial 340 4 1,360 Public 194 2 388 Totals 5,838 The acreages in Table 18 are net developable acres, which is the total area of a parcel less major highway right-of-ways, railroad right-of-ways, and wetlands. It is assumed that the net developable acres for individual sites will include internal right-of-ways and unbuildable areas such as steep slopes, parks, and wooded areas. The resulting area hookup charge for the water system is presented in Table 19. Trunk Charges There are no set rules for the percentage of the capital costs to be paid for with area charges and the percentage to be paid for with connection charges. The installation of trunk water main is largely dependent on the area that is to be served. The costs of trunk water main oversizing is generally assigned on an area basis to the benefited properties or on a lot basis if the exact number of lots is known. The supply and storage facilities required, are related to both the area served and the number of connections. The City of Chanhassen elects to combine both types of charges into a single trunk hookup charge. For the purposes of this report, it is assumed that 50% of all trunk water main costs and 100% of all supply and storage costs attributed to new development will be recovered through trunk hookup charges with the balance recovered through lateral benefit and user charges. 1998 Water Supply and Distribution Plan 59 TABLE 19 TRUNK WATER HOOKUP CHARGE SUMMARY 50% of Distribution System Cost $ 2,847,500 _ Supply & Storage Cost* $ 6,400,000 Total Trunk Water Hookup Cost $ 9,247,500 Number of REUs 5,838 units Trunk Hookup Charge $1,584/unit * Does not include Well No. 8 and the Arboretum Tower currently under design and construction. 1998 Water Supply and Distribution Plan 60 SUMMARY AND RECOMMENDATIONS SUMMARY _ This report presents a Comprehensive Water Supply and Distribution Plan of a water system which will meet both the near-term and ultimate needs of the City of Chanhassen. Water demand estimates were based on the year 2000 Land Use Plan. Unit demands were assigned to each usage category in accordance with values experienced in Chanhassen and other similar communities. Demands throughout the system under peak flow conditions at saturation population were then determined by assigning service areas to point designations and applying unit demand rates to the various land usage's included. A summary of the resultant demands is presented in Appendix A. The distribution system resulting from hydraulic analysis under peak demands and saturation population is presented on Figure 8. The ultimate system will operate under two pressure zones. The high water level for the high service zone is 1200 feet above mean sea level. The high water level for the low service zone is 1120 feet above mean sea level. Three layer pressure zones will be created from using pressure reducing valves off of the low pressure zone in the southern portion of the City. Static pressures and residual pressures under peak demand conditions are shown in Appendix B. Major features of the overall system are described below. Dual Clustered Well Fields The recommended system includes two well fields, one at the south end of Lotus Lake and the other near Galpin Blvd. The Lotus Lake well field uses a drift aquifer while the Galpin Blvd. well field uses the Jordan aquifer thus providing safety and flexibility through alternative water sources at separate locations. The Galpin Blvd. well field will serve both the high pressure zone and the low pressure zone and the standby well and well No. 3 are able to feed both zones. 1998 Water Supply and Distribution Plan 61 Expanded High Pressure Zone The High Pressure Zone has been expanded southward to T.H. 5 and east to Galpin Blvd. (see Figure 8) in order to provide adequate pressure to all high elevation properties. The expanded service zone requires a second elevated reservoir (0.5 MG along T.H. 41) to provide — adequate peak demand and fire demand service. The second high service zone reservoir also provides flexibility for service and painting of the structures. T.H.41 Reservoir A 1.5 million gallon (MG) reservoir is presently under construction and is scheduled to be completed by July 1999, south of T.H. 5 and east of T.H. 41. This facility, in combination with a 12" line to the West Side of Lake Minnewashta, will eliminate the need for a previously proposed — smaller tower and provide a service to a greater area. This reservoir and the 0.5 MG high pressure zone reservoir will serve the entire City north of Lyman Blvd. at saturation development. — Lyman Boulevard Reservoir A 2.0 million gallon reservoir is proposed south of Lyman Blvd. and east of Audubon Road. This reservoir will not be required until substantial development occurs south of Lyman Blvd. and will serve the area between Lyman Blvd. and T.H. 169 at saturation development. — Lake Minnewashta Service Area The homes in the lower areas near Lake Minnewashta will continue to be served via a pressure reducing valve off the high service area. The pressure reducing valve will reduce the pressure by about 35 psi to this area. By 2002, a direct connection to the low service zone will be made on the south side of the lake. 1998 Water Supply and Distribution Plan 62 Lower Bluff Service Area Development in the low elevation areas in the south bluff part of the City will be served via pressure reducing valves off the low service area. Two pressure systems will be created off these pressure reducing valves as well as the Lake Riley service area. The pressure reducing valves will reduce the pressure by about 35 psi to each zone. Refer to Figure No. 8 for the designation of these zones. Galpin Boulevard Booster Station Removal The Addition of Well No. 7 in 1997 allowed the City to pump directly to the High Zone and the Galpin Road Booster Station was demolished. A new line is proposed to run along the existing main from the low zone to the high zone. This will allow the upgraded Well No. 3 facility with its variable frequency drive to pump up to the high zone during emergencies. Chaska Interconnection A 12" line is shown near the Chanhassen/Chaska City Limits near T.H. 41. This line serves as a major interconnection to Chaska's water system. In the event of an emergency, well field contamination or massive failure, the interconnection would be opened. The two systems operate at close to the same pressure (18-20 psi difference) and the direct connection will not cause any significant problems. The advantage to both communities is that three water sources (Drift, Jordan and Hinckley aquifers) will be available to the two communities. Such system interconnections are also a major recommendation of the Metropolitan Council's "Metropolitan Area Water Supply Plan". Cost Estimates The total cost for the supply, storage and distribution facilities is estimated at $14,645,000. Phasing of supply, and storage facilities is projected in Tables 15 and 17. The current trunk hookup charges were reviewed and the results are presented in the Economic Analysis Section. 1998 Water Supply and Distribution Plan 63 RECOMMENDATIONS The following recommendations are presented for the Council's consideration: 1) That Figure 8 titled "City of Chanhassen Water Distribution System" be adopted by the Council as the revised Master Development Plan for the trunk water supply and distribution system for the City of Chanhassen. 2) That trunk hookup charges be implemented as shown in Table 19 to assure funding for water supply and distribution costs. 3) That the City continue the comprehensive study of the Galpin Boulevard and Lotus Lake Well Fields, including influence testing, groundwater supply study, and wellhead protection planning as recommended in the 1996 Well Field Study and — Management Plan. 4) That the City initiate action to acquire the reservoir and well sites indicated in the report and also any easements required to connect these sites to the water system. 5) That the City review the proposed Capital Improvement Program yearly to make necessary modifications and continue to revise the entire Water Supply and Distribution Plan at five to seven year intervals to reflect changes in land use and development patterns. — 6) That the City continues to monitor the water quality and consumer complaints for "red" water due to high concentrations of iron and manganese. — 1998 Water Supply and Distribution Plan 64 Appendix A CO CO V CD CD CD O CO CD N CO O CD CO N O V O co O v CD (D CD cD nr v rT OD N O c CO T 6 6 CD ci V 6 O ni CD O 07 N CD r C) 6 6 6 t` CD N O n 6 U) CD O O 06 f� VO N C') r OD N r t? N r r r N r N r r C'7 r r V O a O O N CO C) C) O 01 r CD O CO O CD U) N Cl O O N C) CO C7 00 Os Os O7 r O Os V C- I- N N C') CO N- ni O N C') U) - r C") 6 CO C) CC) C' ) ) CO CD U) W C) C) C') C') 1- C') O O C'') C) C') >-D r r- C) r N r r r r N C) m 2 co m 0 0 C cz Cn co r N C'/ V U) CD N CO Cn C) N C') V Cf) N N CO O) O r N CO nr U) CD (s c0 Cn O r N C") - O N N N N N N N N N N CO CO CO CO CO C) CO C) CO CO '- nr - LL .� N N N N N N N N N N N N N N CV N N N N N N N N N N N N N N N N N N N N n CD a) N V CD CD CO N O 'r OD O O N 0 0 0 0 0 0 O O O O 0 0 nr CD CO of V CD O " CV Cp N r (D N- (n - N N 0 0 rn 0 0 0 0 0 0 .- 0 0 0 0 O O N C) OD U7 CD • O r C') r C) r N r V CO CO CO '- N C7 r r O C co 0 0 ❑ z Co r N- CO co CO CD U) N co. O O CD 0 0 0 0 0 0 h O O O O O O N N co O C` N CO O WT` CD Q) C) O CA CO '- U') N v rni 0 0 0 0 0 0 0 0 6 O O O O O O r r CO N C) N CO b r N r r n u 2 x M p -a z w EL 0 C t4 CO Cn O r N C) v U) CD C` CO Cn r N co v U) OD f- CO Cn O r N CO rzt Cn N C) Tt U) Oti CO C O O N N N N N N N N N O'•) C) 01 C) C) C) O N CV N ON O CV O O O CV CL -6 N N n CO CD CO N O N O N CO CO V CD N CD CO N N N N N CD CD O CD CD .7 CO CD O O O O O CO OD Cn C) Cf) O N C) N O Q CC) O V CO CO U) Cn C) C) C) Cn O C) N (D r N N O O O O O 6CN,) ni . r CP) co N r r r N r' _. O C _ • a ❑ Cn CO CD r O CD O r 00 Cn N co r co cn CD CO CD CD CD O CO O C'7 Cn N 01 CO O O O O CD V co Cn V N U) 6 6 CD Cn 1� r O 6 6 N ni ni ni V ni n r C) U) O v U O6 O O v r f� r m2 Cco c G❑ X (O 0. —O CO Tc..; N t7 U) OD t` C� C= r N co nr Cn OD N co C O r N C7 'cf U') CO fs CO Cn ON C 7 V Cf") tD 1� CO 0 0 0 0 0 0 0 N N N N N N N N C) 9 CD O m n � ‘- a OOOOOOOOOOOOOOOC VOV100u7OCDCO000O V 01u7OC (0) O o_ g _2 C ' co .- 6 oN00 c'i N: D er cGrid E CD 0 0 r VT U) co Cn U) T r N C') N to CO O CD YC C Cr) f, V CO CO CD N U) N (D r C 0 0 0 0 0 0 0 0 0 0 0 O O O O O N O N to O CD O f, V O U) 0 0 N (. N O N C) O C 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C) N W CO N U) C) u7 q c') GO O O r CO C'i O 'a N 0 O O N U) N (D Cn N C r r r r N V 0 CO X E 0 N. N r C) N Cl C7 r N r CO Cll0 — C O C f- CD C) O r N 07 V u7 CD op C) O r N C) V r N CO V U) op C) O N co V C) O r N f, co Cn C co Co co V V V V V V V V V V U) U) (n U) U) 0 0 0 0 0 CD 0 N N N C'') C`') C') CL � V V V V V V V V V V V V V V U) In U) U) U) U) 6 Q7 U) U) U) (n U) U) U) u7 U) 6 a) 0 `- a --, O O N O O N N N N N O C CD O O O O O O O O O O N C7 0 0 0 0 0 0 0 O O Cn O O fa_roO O 0 '- T C) C) 0 0 C) O C) C) O O O N U) 0 0 0 0 C) CO Ni O U) O O O C) O O U) C) O X E 0 In N C) CO r N N N (OO N r- (I) r C3 V - (I) 0 Z : T a O O r (n O r (D (D (D CD O C) C) O O O O O O O O O (!7 r N 0 0 O O O (f) O O 6 O O LLI 0 C 0 0 V 0 CO C) Ni Ni Ni V O V 4O O O r u7 0 0 0 0 .- CO N. O N 0 0 0 CO O O N.: O O CL N N- r N- N. co r r O r I- O E N D) r (D r r < 20 X_ — Z LU C CL 0 C N C') V C') O N C') V u7 CO N. co O r N V C(7 CO N. OA O r N C') V U) (D N. CO Cn O r N U) (D N 0 0 0 0 0 0 0 0 0 N N N N N N N N N N CO CO CO C') CO CL C) C') C') C'7 V V V 'C V V V V V V V V V V V V V V V V V V V V V V V V a) 0 TD Z, CD O N O N CO op CD (» V (D O CD N O O CD CD CD O CD O V V V N r N CO (D O V v N CD O O 07 O ai u7 V ui O C7 C7 r N CD CO u) Ci N (D r O U) O CD m Oj V O 06 to O r u7 O _ ET r C') N CO r (n N N V C') CD C) N O to CD r N Nr, u7 co co U) u7 U) r U) V x a) N u) CD r C') CC0 2E T a ^ Cp U) CD U) r co C) op V ti Co (n Cn (D O O C7 CO CO 0 CO U) h (- (. r r r V C') O h N (D CO U) cti C2 cou) c') r U) N c') N N. N V CO (D O C*) cd, N (15 ,- cidto V h r C) (n 6 N. U) C) N. U) (n N. CC a_ (0 r r c7 s7 r r N r C'7 r r r N C') r r- C') N •- CO N C. N. N N x E (7 r N C') as a) 0 A G C n U) CO V N (D N. Cp C) O r N C') V u7 CO N. CO C) O r N C') V CC) (D N. CO Cn N C) V U) CO N- C) O V V (�) C V V V u7 U) U) UY u) U) U) U) U) D (D COCD COCD COO CO(D COCD COCD CD CO O O O O O O O O r C d fII CM N N N N N N N N N N N N N N CV N N N N N N CV N N N N 07 01 CO M 07 C'7 CO C7 C) CO (D a) C') 0 C) C)) rn i r N 00 N O CD r O U) r� 0 0 0 0 U) 0 0 0 N1 CD CD CD O O CD N O CD 0 0 0 o C N 4 CA CD O 07 r 0 r` N O O 0 0 0 0 0 0 0 6 Cn u") O O CD t` N O O O O = c0 D- Co N O O 00 C) N r r CD O Cl Cn Co N O - r N N N co Cn U) C') C) I CD 0 X (ll r CD con - n z Q A- r r r r 0 CO CD O h C) O O O O C7 O O O N O CO CO O O CO CD O O O O O w n � a cflr: cn066 uioc*ica0000 �ri000uiunair: 6cPQS0ir0000 CD m op O En v CO co X u) C)) U) CD r 0 E (� Ca r r v N r r CO C') O I f9 O CO < :En X - n z W d C C- O Q Cl V U) CD r\ CO O O r N CO V- Ul CO r- op Cn O r N CO v uO CO r` CO C)) O N CO CD CD CD CD CD CD CD CV CV CV CV CV CV CV CV CV CV Cl 01 CD CO 5 tet-) 0 0 C) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C) 0 '- O O 00 N CO r- O O O r C) o o r cr o o t` O 117 0 0 0 0 0 0 0 0 0 '7 0 CD CD O CD U) O CO V r 2 O O O u) N M Ti O CO 06 0 O CD r` O 00 ch 0 0 0 0 0 0 0 0 U) O O Cn O O r� O N Ti _ CC; a. U) UO N N N N V N ) CD C) CO 00 CO _ (o Cy r Tr U) U) N N r CD N X r 2n O O V CD V' CD O O 0 0 0 0 0 0 r- O O CO O N 0 0 0 0 0 O O O O N O O C . O Nr. N Cti0 0 0 N CD CD N. O Ti U) O O O C) C') O Ti CD O C) 0 0 0 0 0 0 UO O O Tt O O CO O N n co 0_ O N N N CO r U) r CO CO V' N CD N r X E (o r N N N ro O .- 2n of ‹ Cl l C ca. (] co _ COC O O r N CO `C' U) CD r` co Cn r N C) V U) r` co V O r N co C U) CD r- O Cn O N O r- O O O A .7 0 0 0 0 0 0 0 0 Cr O N N C) CO CO Ch CO C7 C) C) CO C) Tr Tt Tr 0 0 0 0 c3 1° .cm U) CD CD CD CD CO CD CD CO CO CD CO CD CD CD CD CD CD CD CD CD CD CO CD CD CD CD CD CD CD CD CD 00 r r r c7 to C.) C7 0 el 5 Appendix B APPENDIX B PRESSURES AND ELEVATIONS Static Residual Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI - 1 985.0 1120 58.4 1085.9 43.7 2 969.5 1120 65.1 1085.9 50.4 3 970.0 1120 64.9 1085.9 50.1 __ 4 989.0 1120 56.7 1085.4 41.7 5 990.0 1120 56.3 1084.5 40.9 6 981.5 1120 59.9 1085.0 44,8 7 950.0 1120 73.6 7083.8 57.8 8 957.5 1120 70.3 1083.6 54.6 9 950.0 1120 73.6 1083.6 57.8 10 967.5 1120 66.0 1083.1 50.0 - 11 950.0 1120 73.6 1082.8 57.4 12 941.0 1120 77.5 1082.7 61.3 13 942.5 1120 76.8 1082.6 60.6 - 14 948.0 1120 74.4 1082.6 58.2 15 972.0 1120 64.1 1082.6 47.8 16 982.0 1120 59.7 1082.6 43.5 _ 17 972.0 1120 64.1 1082.5 47.8 18 982.0 1120 59.7 1082.5 43.5 19 959.8 1120 69.3 1082.5 53.1 20 979.6 1120 60.8 1082.5 44.5 - 21 996.0 1120 53.7 1082.5 37.4 22 960.0 1120 69.2 1082.4 53.0 23 980.0 1120 60.6 1082.4 44.3 - 24 961.7 1120 68.5 1082.4 52.2 25 967.0 1120 68.8 1082.4 52.5 26 966.0 1120 66.6 1082.4 50.3 _ 27 998.0 1200 87.3 1180.7 79.0 28 1031.0 1200 73.1 1180.6 64.7 29 1025.0 1200 75.7 1180.7 67.3 30 1025.0 1200 75.7 1180.7 67.3 102 1068.0 1200 57.1 1180.7 48.8 104 1040.0 1200 69.2 1180.8 60.9 105 1045.5 1200 66.8 1180.8 58.5 - 106 1010.0 1200 82.1 1180.7 73.8 107 1031.0 1200 73.1 1180.6 64.7 108 1027.0 1200 74.8 1180.6 66.4 __ 103 1038.0 1200 70.0 1180.6 61.7 110 1011.7 1200 81.4 1180.6 73.1 111 1010.0 1200 82.1 1180.6 73.8 112 1004.5 1200 84.5 1180.6 76.2 113 986.5 1120 57.8 1095.1 46.9 114 980.0 1120 60.6 1095.1 49.8 115 1006.0 1120 49.3 1095.0 38.5 116 1004.0 1120 50.2 1095.0 39.3 117 992.0 • 1120 55.4 1094.9 44.5 118 1005.0 1120 49.7 1094.7 38.8 119 1004.5 1120 84.5 1180.8 76.2 121 1010.0 1120 47.6 1096.4 37.4 122 1060.0 1200 60.5 1180.9 52.3 _ 123 1040.0 1200 69.2 1180.6 60.8 124 1025.0 1200 75.7 1180.6 67.3 125 1015.0 1200 80.0 1180.7 71 a APPENDIX B PRESSURES AND ELEVATIONS Static Residual - Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI 126 1020.0 1200 77.8 1180.7 69.5 127 1004.5 1120 50.0 1095.1 39.2 128 990.0 1120 56.2 1095.1 45.4 129 1000.0 1120 51.9 1095.1 41.2 130 1002.0 1120 51.0 1095.2 40.2 131 1000.0 1120 51.9 1094.9 41.0 132 1000.0 1120 51.9 1094.9 41.0 - 133 1000.0 1120 51.9 1094.9 41.0 134 998.0 1120 52.8 1094.9 41.9 135 999.0 1120 52.3 1094.8 41.5 - 201 994.0 1120 54.5 1094.8 43.8 202 910.0 1120 90.8 1095.3 80.0 203 1018.0 1120 44.1 1095.1 33.3 _ 204 999.0 1120 52.3 1094.9 41.5 205 1000.0 1120 51.9 1094.9 41.1 206 1023.0 1120 42.0 1094.9 31.1 207 1033.0 1120 37.6 1094.9 26.8 - 208 998.0 1120 52.8 1094.9 41.9 209 1000.0 1120 51.9 1094.9 41.1 210 1001.0 1120 51.5 1094.9 40.6 - 211 989.0 1120 56.7 1094.9 45.8 212 992.0 1120 55.4 1094.9 44.5 213 1002.7 1120 50.7 1094.9 39.9 214 978.5 1120 61.2 1094.9 50.3 215 1013.5 1120 46.1 1094.9 35.2 216 1006.0 1120 49.3 1094.9 38.5 217 1001.0 1120 51.5 1094.8 40.6 218 978.0 1120 61.4 1094.7 50.5 219 957.0 1120 70.5 1094.5 59.5 220 970.0 1120 64.9 1095.0 54.0 - 221 966.5 1120 66.4 1095.0 55.6 222 925.5 1120 84.1 1095.0 73.3 223 939.0 1120 78.3 1095.0 67.4 224 915.0 1120 88.7 1094.9 77.8 225 955.0 1120 71.4 1094.9 60.5 226 971.5 1120 64.2 1094.9 53.4 227 970.0 1120 64.9 1094.9 54.0 228 986.0 1120 58.0 1094.8 47.1 229 988.5 1120 56.9 1094.8 46.0 230 992.0 1120 55.4 1094.7 44.4 231 982.0 1120 59.7 1094.8 48.8 232 989.7 1120 56.4 1094.7 45.4 233 992.6 1120 55.1 1094.9 44.2 234 989.8 1120 56.4 1095.0 45.5 235 970.0 • 1120 64.9 1095.1 54.1 236 994.5 1120 54.3 1095.1 43.5 237 979.5 1120 60.8 1095.7 50.3 238 976.0 1120 62.3 1097.2 52.4 239 976.0 1120 62.3 1099.7 53.5 240 985.9 1120 58.0 1094.7 47.0 241 984.7 1120 58.5 1094.9 47.6 242 975.0 1120 62.7 109S 0 g10 APPENDIX B PRESSURES AND ELEVATIONS Static Residual Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI - 243 973.7 1120 63.3 1095.3 52.6 244 972.0 1120 64.0 1095.7 53.5 245 975.0 1120 62.7 1096.0 52.3 _ 246 977.0 1120 61.8 1094.3 50.7 247 976.0 1120 62.3 1093.4 50.8 248 973.0 1120 63.6 1093.2 52.0 249 955.8 1120 71.0 1093.3 59.5 250 959.7 1120 69.3 1093.4 57.8 251 961.0 1120 68.8 1096.0 58.4 252 954.5 1120 71.6 1096.0 61.2 253 970.0 1120 64.9 1097.4 55.1 254 967.0 1120 66.2 1098.6 56.9 255 930.8 1120 81.8 1099.3 72.9 256 920.0 1120 86.5 1095.9 76.1 257 933.0 1120 80.9 1096.2 70.6 258 927.0 1120 83.5 1096.5 73.3 259 941.5 1120 77.2 1096.6 67.1 260 923.0 1120 85.2 1096.8 75.1 261 922.0 1120 85.6 1096.9 75.6 262 918.0 1120 87.4 1097.8 77.7 263 928.0 1120 83.0 1098.1 73.6 264 920.5 1120 86.3 1098.5 77.0 265 942.0 1120 77.0 1099.2 68.0 -- 266 945.0 1120 75.7 1099.3 66.7 267 972.0 1120 64.0 1094.8 53.1 268 1008.0 1120 48.5 1094.9 37.6 269 1020.0 1120 43.3 1095.0 32.4 301 974.0 1120 63.2 1089.1 49.8 302 1010.0 1120 47.6 1089.3 34.3 303 980.0 1120 60.6 1090.7 47.9 304 972.0 1120 64.0 1088.1 50.2 305 930.0 1120 82.2 1088.4 68.5 306 950.5 1120 73.3 1090.0 60.3 -- 307 950.0 1120 73.5 1089.2 60.2 309 946.0 1120 75.3 1099.2 66.2 310 929.0 1120 82.6 1099.2 73.6 _. 311 931.0 1120 81.7 1099.0 72.6 312 931.0 1120 81.7 1098.9 72.6 313 939.0 1120 78.3 1098.8 69.1 - 314 936.0 1120 79.6 1098.5 70.3 323 950.0 1120 73.5 1086.0 58.8 400 970.0 1120 64.9 1084.1 49.4 401 954.0 1120 71.8 1083.7 56.1 402 981.0 1120 60.2 1082.5 43.9 403 981.0 • 1120 60.2 1082.5 43.9 404 980.0 1120 60.6 1082.5 44.3 - 405 977.0 1120 61.9 1082.5 45.6 406 1010.0 1120 82.2 1180.7 73.8 407 1045.0 1120 67.0 1180.8 58.7 408 1045.0 1120 67.0 1180.7 58.7 410 970.0 1120 64.9 1095.5 54.3 411 960.0 1120 PCP, 1n00 7 an A APPENDIX S PRESSURES AND ELEVATIONS Static Residual Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI 412 961.0 1120 68.8 1099.7 60.0 414 928.0 1120 83.0 1096.5 72.9 415 906.0 1120 92.6 1089.8 79.5 416 906.0 1120 92.6 1089.7 79.4 417 1031.0 1120 73.1 1180.6 64.7 418 1031.0 1120 73.1 1180.6 64.7 420 992.0 1120 55.4 1094.9 44.5 - 421 1005.0 1120 49.7 1094.3 38.6 422 1010.0 1120 47.6 1093.9 36.3 423 1015.0 1120 45.4 1093.1 33.8 - 424 1000.0 1120 51.9 1094.2 40.7 425 1000.0 1120 51.9 1094.4 40.8 426 1000.0 1120 51.9 1093.9 40.6 427 1010.0 1120 47.6 1096.9 37.6 428 1010.0 1120 47.6 1097.0 37.6 429 965.0 1120 67.0 1085.7 52.2 430 985.0 1120 58.4 1095.1 47.6 - 431 1000.0 1120 51.9 1095.0 41.1 432 980.0 1120 60.5 1034.1 45.0 435 1020.0 1120 43.3 1096.6 33.1 - 436 1004.0 1120 50.2 1095.1 39.4 437 925.0 1120 84.3 1084.2 68.8 438 925.0 1120 84.3 1094.2 68.8 439 925.0 1120 84.3 1084.2 68.8 440 990.0 1120 56.3 1085.2 41.2 441 990.0 1120 56.3 1085.1 41.1 442 990.0 1120 56.3 1085.0 41.1 - 443 950.0 1120 73.5 1099.7 64.7 444 945.0 1120 75.7 1099.4 66.8 445 956.0 1120 70.9 1099.7 62.1 446 951.0 1120 73.1 1099.9 64.4 447 957.0 1120 70.5 1100.2 61.9 448 959.0 1120 69.6 1100.0 61.0 _ 449 960.0 1120 69.2 1101.9 61.4 450 960.0 1120 69.2 1102.7 61.7 451 973.0 1120 63.6 1097.6 53.9 452 870.0 1060 82.2 1060.1 82.2 - 453 910.0 1060 64.9 1060.0 64.8 454 870.0 1060 82.2 1059.8 82.1 501 1070.0 1200 56.2 1178.2 46.8 502 1015.0 1120 45.4 1097.0 35.5 503 1000.0 1120 51.9 1095.6 41.3 504 1010.0 1120 47.6 1090.7 34.9 505 978.0 1120 61.4 1092.1 49.3 508 974.0 • 1120 63.2 1091.5 80.8 509 990.0 1120 56.2 1087.9 42.3 _ 510 950.0 1120 73.5 1083.0 57.5 512 930.0 1120 82.2 1082.2 65.8 513 970.0 1120 64.9 1092.9 53.1 514 965.0 1120 67.0 1096.5 56.9 519 925.0 1120 84.3 1084.2 68.8 520 950.0 1120 73.5 1089.3 60.2 APPENDIX B - PRESSURES AND ELEVATIONS Static Residual Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI 521 950.0 1120 73.5 1093.2 61.9 522 965.0 1120 67.0 1093.4 55.5 537 958.0 1120 70.1 1086.4 55.5 538 950.0 1120 73.5 1087.3 59.4 539 980.0 1120 60.6 1089.1 47.2 540 990.0 1120 56.2 1088.8 42.7 600 950.0 1120 73.5 1094.5 62.5 601 940.0 1120 77.8 1087.3 63.7 602 920.0 1120 86.5 1087.2 72.3 603 950.0 1120 73.5 1083.4 57.7 - 604 930.0 1120 82.2 1086.9 67.9 605 963.0 1120 67.9 1090.3 55.1 606 982.0 1120 59.7 1091.0 47.1 - 607 1000.0 1120 51.9 1094.9 41.0 608 1000.0 1120 51.9 1095.2 41.2 609 1010.0 1120 47.6 1094.0 36.3 611 960.0 1120 69.2 1099.7 60.4 - 612 980.0 1120 60.6 1086.7 46.1 613 980.0 1120 95.1 1180.6 86.7 614 1040.0 1120 69.2 1182-1 61.4 - 615 1040.0 1120 69.2 1181.8 61.3 617 927.0 1120 93.5 1081.5 66.8 623 870.0 1060 82.2 1060.1 82.2 _ 624 900.0 1060 69.2 1060.1 96.2 630 1010.0 1120 47.6 1091.4 32.5 631 1025.0 1120 41.1 1091.3 28.7 632 1020.0 1120 43.3 1091.3 30.9 633 1030.0 1120 38.9 1091.3 26.5 634 970.0 1120 64.9 1089.9 51.8 635 1020.0 1120 77.8 1181.0 69.6 - 636 1020.0 1120 77.7 1179.1 68.8 . - . 637 1000.0 1120 76.5 1182.9 79.1 638 1040.0 1120 69.2 1180.7 60.9 _ 639 1060.0 1120 60.5 1179.5 51.7 640 1050.0 1120 64.8 1178.3 55.5 641 880.0 1120 103.8 1060.1 77.9 _ 642 985.0 1120 58.4 1092.7 46.6 800 936.0 1120 79.6 1096.3 69.3 1000 940.0 1120 77.8 1078.8 60.0 1001 946.0 1120 75.3 1079.2 57.6 1002 940.0 1120 77.8 1079.1 60.2 1003 930.0 1120 82.2 1077.9 63.9 1004 930.0 1120 82.2 1069.8 60.5 - 1005 930.0 1040 47.6 1039.4 47.3 1006 910.0 • 1040 56.3 1029.5 51.7 1007 730.0 900 73.5 898.4 72.8 _. 1008 800.0 900 43.3 896.7 47.8 1009 920.0 1040 51.9 1028.7 47.0 1010 930.0 1040 47.6 1039.7 47.5 _ 1011 950.0 1120 73.5 1079.1 55.8 1012 900.0 1120 95.1 1082.4 78.9 1013 950.0 1120 73.5 1082.9 57.5 APPENDIX B PRESSURES AND ELEVATIONS - Static Residual _. Hydraulic Hydraulic Point Ground Grade Line Pressure Grade Line Pressure No. Elevation Elevation PSI Elevation PSI 1014 947.0 1120 74.8 1082.3 58.5 - 1015 730.0 900 73.5 898.4 72.8 1016 710.0 900 82.2 896.7 80.7 1017 965.0 1120 67.0 1089.3 5,3.8 - 1018 980.0 1120 60.6 1090.5 47.8 1019 1027.0 1120 40.2 1091.2 27.8 1020 1000.0 1120 51.9 1091.6 39.6 - 1021 990.0 1120 56.3 1090.2 43.4 1022 1010.0 1120 47.6 1089.3 34.3 1023 990.0 1200 90.7 1177.2 81.0 1024 1070.0 1200 56.2 1178.2 46.8 1025 1050.0 1200 64.8 1179.5 56.0 1026 1070.0 1200 56.2 1178.2 46.8 1027 900.0 1060 69.3 1059.7 69.1 - 1028 870.0 1060 82.2 1059.8 82.1 1029 870.0 1060 82.2 1060.0 82.2 1030 690.0 1120 69.2 1100.1 60.6 - 1031 1040.0 1200 69.1 1178.5 59.9 1032 900.0 1040 60.6 1026.1 54.5 1033 900.0 1040 60.6 1027.4 55.1 Appendix C - Ultimate System Cost Estimates WELLS AND PUMPHOUSES Item Unit Cost Quantity Total 1,000 gpm Jordan Wells $550,000 4 $2,200,000 1,000 gpm Drift Wells $450,000 3 $1,350,000 $3,550,000 STORAGE FACILITIES Item Unit Cost Quantity Total 1.5 MG Arboretum Tank (LPZ) $2,000,000 1 $2,000,000 1.5 MG Lyman Blvd Tank (LPZ) $2,600,000 1 $2,600,000 0.5 MG T.H. 41 Tank (HPZ) $800,000 1 $800,000 $5,400,000 DISTRIBUTION Item Unit Cost Quantity Total 8" Water Main (Lake Riley Loop) $40 7,045 $281,800 12" Water Main $45 57,986 $2,609,370 16" Water Main $50 21,137 $1,056,850 18" Water Main $70 9,484 $663,880 20" Water Main $90 6,676 $600,840 24" Water Main $110 1,200 $132,000 Pressure Regulating Valves $50,000 7 $350,000 $5,694,740 TOTAL ULTIMATE SYSTEM COST $14,644,740 Note: Storage costs include 30%for contingencies,administration,legal, and engineering costs. All other costs include 35%. 1998 Water Supply and Distribution Plan Link From To Length (ft) Cost Label Node Node 8 12 I 16 18 20 24 (S) 1000 617 1000 4.522 5226,100 1001 1000 1001 4,289 5171,560 1002 1001 1002 1.081 S75,670 1003 1002 1003 4,329 S194,805 1004 1003 1004 1,506 567,770 1005 1004 PRV-6 143 S6,435 1006 PRV-6 1005 157 57,065 1007 1005 1006 2.534 S114,030 1009 1007 1008 1.340 S60.300 1011 1009 1010 4,161 _ S187,245 1012 1010 PRV-7 147 56,615 1013 PRV-7 1011 173 57,785 1014 1011 510 6.411 S320,550 1015 510 1012 1.697 5152.730 1016 1012 1013 1.659 S149,310 1018 1012 1014 400 S44,000 1020 1013 512 3,260 5163,000 1021 1013 1001 3,956 5197,800 1022 1003 1000 1.393 569,650 1023 1007 1015 3,936 5177,120 1024 1008 1016 3.097 S139.365 1025 510 612 4,680 5327.600 1028 521 600 1.181 5106,290 1030 1011 1002 4,058 5182,610 1031 537 538 3,589 5161,505 1032 301 1017 1,943 S87,435 _ 1033 1017 1018 1,286 _ 557.870 1035 605 1018 1,343 553,720 1036 1018 642 1.405 556,200 1037 633 1019 776 585,360 1039 630 1020 1,119 5190,710 1040 1020 642 3,033 S212,310 _1041 1020 1021 2,138 596,210 1042 1021 1022 1.008 545.360 _ 1043 1022 3 5.219 _ S234.855 1044 1021 PRV-8 174 57,830 1045 PRV-8 1023 223 510,035 1046 1023 501 2.569 S115,605 1047 501 1024 624 S31,200 1048 1024 639 1,801 581,045 1050 1024 1026 672 547,040 1053 PRV-9 502 235 S11,750 1056 641 PRV-10 1,248 556,160 1057 PRV-10 602 980 544.100 1059 1031 PRV-9 179 S8,950 1060 428 1031 541 S27.050 Link From To Length(ft) Cost — Label Node Node 8 I 12 I 16 I 18 I 20 I 24 (S) 1061 1031 636 1,714 S77,130 1065 1032 1009 1,797 $80,865 — 1066 1006 1033 737 $33,165 1068 1032 1033 3,221 $144,945 1069 1008 PRV-12 1,113 $50,085 1070 PRV-12 1032 175 _ $7,875 1071 1033 PRV-13 _ 159 $7,155 1072 PRV-13 1007 L299 $58,455 Total Length(ft) 7,045 57,986 21,137 9.484 6,676 1,200 Cost/L.F. ($/ft) $40 $45 $50 S70 $90 5110 — Total Cost($) $281.800 S2.609,370 S1,056.850 5663,880 S600,840 S132.00() 55,344.740 Appendix D Appendix D - Water Quality Requirements Background In 1977, the U.S. Environmental Protection Agency (EPA) established the National Interim Primary Drinking Water Regulations (NIPDWR). Development under the Safe Drinking Water Act (PL 93-523), these regulations contain federally enforceable maximum contaminant level (MCL) standards for substances known to be hazardous to public health. Based largely upon the Public Health Service Standards of 1962, these regulations include requirements on the frequency of testing and the subsequent reporting of test results. Between 1977 and 1983, four amendments were made to the NIPDWR that increased the number of water quality parameters for which MCL's were assigned. During the mid-1980's, an increase in public awareness of water quality and contamination resulted in promulgation of the 1986 Safe Drinking Water Act amendments. These amendments mandated the current review of existing MCL's and the development of still more water quality standards and treatment requirements for all public drinking water supplies. Over the past few years there have been several more amendments added to those of the Safe Drinking Water Act, and still more are planned for the future. This is because the EPA has identified over 65 new substances that need to be regulated. Permissible levels for these substances will be proposed and implemented over the next few years. Under the Safe Drinking Water Act, water quality parameters are defined and regulated by two separate sets of criteria or standards -- Primary and Secondary. In 1991, the EPA included a lead and copper rule to the Primary Standards. A discussion of these Standards follows. This appendix also contains a discussion about water hardness and how it relates to water quality. Appendix D - 1998 Water Supply & Distribution Plan D-1 National Primary Standards Primary Drinking Water Standards identify maximum containment levels (MCL's) for those substances known to be harmful to public health. Enforcement of these standards is under the _ jurisdiction of the Minnesota Department of Health. The Primary Drinking Water Standards are divided into five categories with MCL's being determined for each contaminant. The five categories are: — (1) Inorganic. (2) Synthetic Organic Chemicals (SOC's). — (3) Volatile Organic Chemicals (VOC's). (4) Microbiological. — (5) Radiological. A listing of the five categories, the type of water to which they are applicable, the contaminants — included in each, and the MCL are presented at the back of this appendix. Both existing and proposed regulations are presented. Testing for coliform bacteria and inorganic chemicals is required in all public water systems. The number of coliform density samples required under the law is proportionate to the population — served by the system. Testing for turbidity and organic chemicals is required by law for public water systems utilizing a surface water source. The State can require testing for organic chemicals and radiological chemicals in certain groundwater supplies. — Lead and Copper Rule - In July of 1991, the lead and copper rule was promulgated by the EPA. Included in the Primary — Drinking Water Standards, the lead and copper rule requires treatment when lead and/or copper in a public water supply exceeds the action levels of 0.015 mg/L for lead (Pb) and 1.3 mg/L for copper (Cu). Lead and copper enter drinking water mainly from the corrosion of lead and/or — copper distribution and service piping. For this reason, contamination by these elements primarily takes place after the water enters the distribution system and testing must be done at the point-of- use. Appendix D - 1998 Water Supply & Distribution Plan D-2 — To comply with the new laws, all water utilities must complete a materials evaluation of their distribution system and/or review other information to target high risk homes. The water utilities must then complete an initial sampling survey of site within the service area. The number of sampling sites is based on the population served and listed below. One sample is to be taken from each site. Each sample is to be "first-draw" following a period of stagnant flow. Initial Monitoring for Lead and Copper System Size Minimum Number Date Sampling (Population) Of Samples Begins >100,000 100 January 1992 50,000 to 100,000 60 January 1992 10,000 to 50,000 60 July 1992 3,300 to 10,000 40 July 1992 500 to 3,300 20 July 1993 100 to 500 10 July 1993 <100 5 July 1993 Initially, municipal utility departments are required to collect home tap samples for lead and copper analysis every six months. In systems that are required to install corrosion control treatment, follow-up samples for other water quality parameters (WQPs) must be taken from within the distribution system every six months and from entry points to the distribution system every two weeks. Both the number of sampling sites and the frequency may be reduced if the action level is met or the system maintains optimal treatment. Sampling frequency is summarized below. Appendix D - 1998 Water Supply & Distribution Plan D-3 Lead and Copper Sampling Frequency Pb/Cu WQPs Within The At entry to — Distribution Distribution Monitoring Period Home Taps System System Initial tests 6 mo. 6 mo. 6 mo. After corrosion — treatment 6 mo. 6 mo. 2 wk. Reduced — Conditional I yr. 6 mo. 2 wk. Final 3 yr. 3 yr. 2 wk. Four types of action are required to remedy high lead/copper levels. Once a system has more than 10 percent of all tap monitoring results exceed the action levels, the system must perform corrosion control treatment, source water treatment and public education. If the system continues to exceed the action levels, service line replacement is required. To optimize treatment and determine compliance with State lead/copper standards, additional monitoring must be performed on systems meeting the following conditions: - Large systems serving more than 50,000 persons, regardless of the lead/copper levels in tap samples. - Smaller systems serving less than 50,000 persons, if either action level is exceeded in tap samples. Testing for other WQPs such as pH, alkalinity, calcium, conductivity, orthophosphate, silica and temperature, occurs at two types of sampling sites: — - Within the distribution system, with the number of sites based on the population served. Two samples are required from each site. — - One sample at each entry point to the distribution system. Secondary Standards Appendix D - 1998 Water Supply & Distribution Plan D-4 In addition to the hazardous contaminants covered by the Safe Drinking Water Act, concentrations of other substances, not having an impact on public health, frequently cause drinking water supplies to have objectionable aesthetic qualities, such as taste and odor. Because of this, Secondary Drinking Water Standards were developed to act as a guide in suggesting the maximum contaminant level for select chemical and physical characteristics of a water supply. The Secondary Standards generally imply that public water supplies exceeding the maximum suggested levels will have more customer complaints than those not exceeding the suggested levels. A summary of the Secondary Drinking Water Standards is presented below. Secondary Drinking Water Standards Maximum Contaminant Level _ 1. Regulated Parameter Current MCL Chanhassen's (m L) Raw Water Aluminum 0.05 -0.2 Chloride 250 0.5-3.8 Color 15 color(units) Copper 1 Corrosivity noncorrosive Fluoride 2 Foaming Agents 0.5 Iron 0.3 <0.05-1.2 Manganese 0.05 <0.05 to 0.38 Odor 3 TON* pH 6.5 - 8.5 6.8-7.6 Silver 0.10 Sulfate 250 Total Dissolved Solids(TDS) 500 Zinc 5 2. Proposed Parameter to be Regulated Proposed MCL(mg/L' Hexachlorocyclopentadiene 0.008 * TON-Threshold Odor Number Appendix D - 1998 Water Supply & Distribution Plan D-5 Hardness Hardness is another water quality concern. The United States Geological Survey and the American Water Works Association have established the following standards for hardness. Hardness Classification Rosemount's Hardness (mg/I) Classification Water O - 75 Soft 75-150 Moderately Hard 150-300 Hard > 300 Very I lard 235-390 The most common objections to hard water are: 1. Consumption of large quantities of soaps and detergents, 2. Adverse effect on clothing and other articles being cleansed, 3. Shortening of the life of pipes and fittings, heating systems, and boiler shells and tubes, and 4. Unsuitability for many industrial uses. An upper limit for hardness has never been established due to the broad range of customer _ tolerances, but water with a hardness of 70 - 85 mg/1 is usually considered desirable for residential and commercial uses. Appendix D - 1998 Water Supply & Distribution Plan D-6 NATIONAL PRIMARY STANDARDS FOR DRINKING WATER MAXIMUM CONTAMINANT LEVELS — A) INORGANIC CHEMICALS (Surface &Ground Water) 1. Existing Regulated Inorganic Chemicals Current Contaminant MCL (ppb) Arsenic 50 Asbestos 7 MFL Barium 2,000 Cadmium 5 Chromium (total) 100 — Fluoride 4,000 Lead TT* Mercury 2 — Nitrate (as N) 10,000 Nitrite (as N) 1,000 Selenium 50 2. Proposed Inorganic Chemicals to be Regulated — Proposed Contaminant MCL (ppb) Antimony 5 - 10 Beryllium 1 Copper 1,300 Cyanide 200 Nickel 100 — Sulfate 400 - 500 mg/L Thallium 1 - 2 * TT -Treatment Technique for lead is triggered by a 15 ppb action level. Appendix D - 1998 Water Supply & Distribution Plan D-7 B) SYNTHETIC ORGANIC CHEMICALS (SOCs) (Surface &Ground Water) _ Current 1. Existing Regulated SOCs MCL (ppb) Acrylamide TT* Alachlor 2 Aldicarb 3 Aldicarb Sulfone 2 Aldicarb Sulfoxide 4 _ Atrazine 3 Carbofuran 40 Carbon Tetrachloride 5 Chlordane 2 Dibromochloropropane (DBCP) 0.2 o-Dichlorobenzene 600 p-Dichlorobenzene 75 1,2-Dichloroethane 5 1,1-Dichloroethylene 7 cis-1,2-Dichloroethylene 70 trans-l,2-Dichloroethylene 100 _ 2,4-Dichlorophenoxyacetic Acid (2,4-D) 70 1,2-Dichloropropane 5 Epichlorohydrin TT* Ethylbenzene 700 Ethylene Dibromide (EDB) 0.05 Appendix D - 1998 Water Supply & Distribution Plan D-8 National Primary Standards (Continued) Heptachlor 0.4 Heptachlor Epoxide 0.2 Hexachlorocyclopentadiene 50 Lindane 0.2 Methoxychlor 40 Monochlorobenzene 100 PCBs 0.5 Styrene 100 Tetrachloroethylene 5 Total Trihalomethanes 100 Toluene 1,000 Toxaphene 5 2,4,5-TP(silvex) 50 1,1,1-Trichloroethane 200 Trichloroethylene 5 Vinyl Chloride 2 Xylenes (total) 10,000 2. Proposed SOCs to be Regulated MCL(ppb) Adipates 500 Dalapon 200 Dichloromethane (methylene chloride) 5 Dinoseb 7 Diquat 20 Endothall 100 Endrin 2 Glyphosate 700 Appendix D - 1998 Water Supply & Distribution Plan D-9 National Primary Standards (Continued) Proposed _ Hexachlorobenzene 1 Hexachlorocyclopentadiene 50 Oxamyl (Vydate) 200 PAHs (Polynuclear Aromatic Hydrocarbons) 0.2 Pentachlorophenol 1 Phthalates 4 — Picloram 500 Simazine 4 1,1,2-Trichloroethane 5 2,3,7,8-TCDD (Dioxin) 0.00005 1,2,4-Trichlorobenzene 9 1,1,2-Trichloroethane 5 C) VOLATILE ORGANIC CHEMICALS (VOCs) — (Ground Water) Current _ Contaminant MCL(ppb) Benzene 5 — Carbon Tetrachloride 5 p-Dichlorobenzene 75 _ 1,2-Dichloroethane 5 1,1-Dichloroethylene 7 _ cis-1,2-Dichloroethylene 70 trans-1,2-Dichloroethylene 100 Tetrachloroethylene 5 Trichloroethylene 5 Vinyl Chloride 2 — Appendix D - 1998 Water Supply & Distribution Plan D-10 National Primary Standards (Continued) D) MICROBIOLOGICAL (Surface and Ground Water) Giardia Lamblia TT* Legionella TT* Standard Plate Count TT* Total Coliforms ++* Turbidity PS* Viruses TT* E) RADIOLOGICAL (Surface &Ground Water) Current Proposed MCL MCL Beta-particle and 4 mrem photon emitters 4 mrem Alpha Emitters 15 pCi/L Radium 226 + 228 5 pCi/L Radium 226 20 pCi/L Radium 228 20 pCi/L Radon 300 pCi/L Uranium 20 g/L * Abbreviations used in this table: ++ - No more than 5% of the samples per month may be positive. (For systems collecting fewer than 40 samples per month, no more than 1 sample per month may be positive.) TT - Treatment Technique PS - Performance Standard 0.5 - 1.0 ntu (naphthalene turbidity unit) Appendix D - 1998 Water Supply & Distribution Plan D-11 Appendix E Appendix E - Water System Emergency Preparedness Plan Purpose The purpose of this plan is to prepare a detailed description of procedures to follow in the event of a disruption to normal water service. The disruption could be natural or man-made, and could _ affect the entire water system or only parts of the system. This plan cannot address all potential disasters. It is intended to give the water utility staff a guideline to allow them to quickly restore normal water service with a minimum of disruption, and to minimize any potential health risks. This plan should be coordinated with the emergency plans of other City and regional entities; Police, Fire, Public Works, etc. In the event of a City-wide disaster, the water utility will work in conjunction with the Chanhassen Civil Defense Director. Emergency Telephone List The Emergency Telephone list is attached. Work and home phone numbers of key emergency contacts and the 24 hour cellular contact are included on the phone list. Also attached is an Emergency Information Reporting form. This form will not cover all emergencies that the City may experience; however, the form will help standardize the reporting/recording process. In the event of an emergency, the responding staff person will record the type of emergency, location, caller name and phone number, time call received, preliminary damage assessment, access issues, available assistance and any other pertinent information. A standard question format will help staff persons collect accurate and specific information about the emergency so that the proper response can be initiated without delay. Appendix E - Water System Emergency Preparedness Plan E- 1 Current Water Sources and Service Area Chanhassen's DNR appropriation permit number is 816089. There are 4,993 residential, 68 commercial, 40 industrial, and 13 institutional or a total of 5,114 connections as of December, 1997. Chanhassen does not utilize any surface water sources. Chanhassen has seven wells, all of which are permanent sources. Wells No. 2; No. 5 and No. 6 are drift aquifer. The other wells are located in the Prairie du Chien-Jordan aquifer. The school well is manually controlled and used to supplement the high service area during summer peak demands. A summary of the well data is attached to this emergency plan. A map illustrating the locations of existing and future wells is shown in Figure 6 and Figure 7. The City has a detailed map of the water system in the Public Works Office. A detailed discussion of Chanhassen's water sources is found in the "Existing Facilities" section of the Water Supply Description and Evaluation. Procedure for Augmenting Water Supplies The following alternatives exist for additional supplies of water. Interconnect with Adjacent Communities The City has an interconnection with Chaska to be utilized in emergency situations and will _ continue to evaluate the feasibility of connecting with neighboring communities. Appendix E - Water System Emergency Preparedness Plan E- 2 Conjunctive Use of Surface and Ground Waters The combined use of surface and ground waters is not a viable option for the City of Chanhassen. Alternative Sources of Water Many of the potential sources of groundwater contamination can be treated at the well pumphouse. In a relatively short period of time, the City can construct a portable treatment facility to treat the water to drinking water standards. The wells in Chanhassen are spread out around the City. Therefore, it is unlikely that more than one well could be contaminated at a time. Also, the City utilizes both the Jordan and Drift aquifers, giving the City an additional level of protection. During construction of the portable treatment facility, demand reduction measures may be required as described below to reduce the demand to the level of remaining well capacity. Demand Reduction Procedures Demand reduction procedures should be initiated during unusually high demand periods or shortage of water due to an emergency. The restrictions should relate to the severity of the emergency or shortage. Demand Reduction Potential Chanhassen's usage during the summer months is higher than during the winter months. In 1997, the average day demand was 2.06 MGD, and the maximum day was 6.21 MGD. The average use in the winter was about 1.5 MGD. All of the peak demand periods have occurred during the summer months, when outdoor water uses are the greatest. For demand/supply emergencies during the summer months, sprinkling bans can be instituted for all of the customer categories. These sprinkling bans would have the potential for significant short-term demand reduction. Due to the high percentage of residential water usage, a water shortage or emergency during Spring, Fall, or Winter would likely require allocation of domestic water use. There may be some demand potential with the large demand users depending on the severity of the emergency. Appendix E- Water System Emergency Preparedness Plan E- 3 Short Term Demand Reduction Procedures The following short-term demand reduction measures are currently part of Chanhassen's conservation plan. The measures are progressively more stringent for use as the length or severeness of the emergency warrants. Triggers for each of these measures are outlined in the following sections. 1. Voluntary Reduction Measures: Public service announcements, special mailings, and notices in the local paper. 2. Sprinkling Restrictions: City Code Section 19.28 provides the following: • Odd/even sprinkling restrictions in effect from May 1 to September 30. • The City Council can further limit the times and hours during which water may be used _ by resolution. • The Public Works Director/Public Safety Director can also further limit water uses on a temporary emergency basis. 3. Water Allocation Restrictions: based on the severity of the emergency and the water use priorities and triggers established in next section. Procedures for Water Allocation Initial emergency response will include actions to augment supplies and/or reduce demands. However, severe water shortages may require the City of Chanhassen to allocate water based on the following priorities. These priorities are established by Minnesota Statutes 103G.261. Non-essential uses of water are the lowest use priority and will be the first water use subject to , allocation restrictions. Quick responses to restrict non-essential uses of water during periods of limited supplies will help protect domestic and economic uses of water. Therefore, the City of Chanhassen will be quick to step in and limit the non-essential use of water. Appendix E - Water System Emergency Preparedness Plan E- 4 First Priority. Domestic water supply, excluding industrial and commercial use of municipal water supply, and use for power production (which currently does not apply to Chanhassen) that meets contingency requirements. Notify all customers Second Priority. Water uses involving consumption of less than 10,000 gallons per day. Notify all commercial/industrial users Third Priority. Agricultural irrigation and processing of agricultural products. Does not apply to Chanhassen Fourth Priority. Power production in excess of the use provided for in the contingency plan under first priority. Does not apply to Chanhassen Fifth Priority. Uses, other than agricultural irrigation, processing of agricultural products, and power production. Notify top ten water users. Sixth Priority. Non-essential uses. These uses are defined by Minnesota Statutes 103G.291 as lawn sprinkling, vehicle washing, golf course and park irrigation,and other non-essential uses. Notify all customers While initial emergency responses may include actions to augment supplies and/or reduce demands, severe water shortages would require water allocation in accordance with these priorities. Appendix E - Water System Emergency Preparedness Plan E- 5 Triggers for Implementing Plan Components The critical factor in the Chanhassen water system is the well pump supply capacity. For reliability, the system must always have one well pump in the standby or back-up position. — Therefore the capacity of the supply facilities is the capacity with the largest well pump out of service. This capacity is defined as the firm capacity. The total firm capacity is currently 7.02 MGD. The firm capacity will be around 8.46 MGD with the addition of Well 8 in the summer of — 1998. As the demand reaches the firm capacity of the supply facilities, demand reduction measures must be initiated. Demand reduction measures should be instituted by the City Council or the Public Utilities Superintendent and City Administrator in accordance with the following triggers. These triggers _ should be adjusted according to the number of wells actually available for service, reservoir levels, temperature, humidity, and number of days since the last rainfall. The following triggers are initiated based on the percentage demand is to firm capacity. — Trigger — Measure % of Firm Capacity Firm Capacity: 7.02 MGD — Voluntary Reduction Measures Always Odd/Even Sprinkling Ban 80 Total Sprinkling Ban 90 — Eliminate 6th Priority Allocation 95 Eliminate 5th Priority Allocation 97 Eliminate 4th Priority Allocation 98 Eliminate 3rd Priority Allocation 99 Eliminate 2nd Priority Allocation 100 Appendix E - Water System Emergency Preparedness Plan E- 6 — Enforcement The focus of Chanhassen's short-term demand reduction plan is on voluntary reduction of non- essential uses of water. A public notification is aired to all residents over the following radio and television stations informing them of the sprinkling bans: WCCO/830 AM: 332-7900 or 333-9181 (Newsroom - AM Steve Murry, PM Rich Holter) _ KSTP/1500 AM: 588-6397 K-102 FM: 645-7757 (John Walon) WCCO/TV: 330-2500 (John Montgomery) KSTP/TV: 642-4321 (Assignment Desk) KMSPjTV: 946-5767 (Keith Brown) KARE/TV: 546-1111 (Assignment Desk) Enforcement will become more stringent as the emergency progresses. Odd/even sprinkling bans will be monitored and enforced by the public safety department only as complaints are called in. Total sprinkling bans and other allocation eliminations will be monitored by Water Utility Staff and enforced as needed by the police department. Water Supply Protection Analysis of Previous Supply Problems Much of the City of Chanhassen's water system is relatively new. No major repairs have been necessary or have rendered the system inoperable. The City will be monitoring the original section of distribution piping more closely as the system ages. All tools necessary for repairs of water lines and pumphouse equipment are on hand at all times. The City also has access to pipes, valves and tools from a local supplier at all hours. Currently, only a small quantity of pipe is in stock, however, as the system ages and repairs become more necessary the City will need to increase the supply of piping as well as valves, couplings, etc. to reduce repair time. Appendix E - Water System Emergency Preparedness Plan E- 7 Wellhead Protection Water supply protection is an essential part of the Chanhassen emergency plan. A wellhead protection plan will be prepared as soon as the requirements are developed by the Minnesota Department of Health. Refer to the Appendix for a copy of the 1996 Well Field Study and Water Management Plan. Resource Monitoring The Water Utility periodically measures the static and pumping water levels in all of their wells. — Records are maintained with the water superintendent. Trending of water levels will be initiated as the Wellhead Protection Plan is adopted. Emergency Resources Maintenance A good maintenance program can identify potential problems before they become an emergency. The City's water system is in excellent condition, due to a proactive maintenance program. The following are the major components of Chanhassen's maintenance program, and _ recommendations for future improvements. Valves: Valves are checked occasionally as personnel are available. The City needs sufficient _ personnel "on call" during valve turning operations in case a valve breaks or a leak develops. Recomniendations: establish a schedule for valve turning, maintain better records on valve maintenance, and have sufficient personnel available to repair any problems that arise — during valve exercising. Begin to organize valve data for the City GIS. Hydrants: Every hydrant is checked at least once a year. Hydrants are also checked in the winter to make sure they are dry. (Hydrant data has been included in the City GIS.) Flushing: Dead end pipes are flushed at least once a year. Breaks/Repairs: The City maintains records of all breaks and repairs. Prior to any street — reconstruction project, the break record is reviewed to determine if pipe should be replaced. The City has an inventory of repair parts, valves, and sleeves at the Public Works Department. The City's backhoe is capable of excavating to 20 ft. depth. Repairs deeper than 20 feet will require another Contractor. _ Appendix E - Water System Emergency Preparedness Plan E- 8 — Chanhassen's Emergency Response Trailer is fully stocked for most water and sewer emergencies. The trailer contains: lightweight box and hydraulic shoring, traffic control equipment, an hydraulic frost breaker, a four inch trash pump, a 1-1/2 inch trash pump, a 3 inch diaphram pump, 4 inch hose,repair sleeves, and miscellaneous repair parts. Recommendations: Include break locations on the City GIS. Pressure Reducing Valves: The City checks the pressure settings and valve operation at least twice a year. Power The City currently has 3 generators. One generator is a truck mounted mobile generator that is capable of operating any of the wells. Chanhassen designed Well 7 to include a natural gas engine to drive the well pump during power outages. This would allow the City to put the well on interruptible service. The City can also rent or borrow generators to run its wells. Control System The computerized control systems for distribution are indispensable to water supply operations. In case of an emergency, a municipality must have a well-planned control system. Following are a number of alternatives to be considered for preventing failure of a computerized control system: 1. Routine maintenance programs. 2. Backup power sources. Appendix E - Water System Emergency Preparedness Plan E- 9 Communications Systems Communication systems are vital to water supply operations. Unfortunately, communication lines, such as telephone lines, are susceptible to many types of disasters (storms, construction accidents, etc.). Accordingly, it is important that backup communication systems be maintained — and tested regularly. The City of Chanhassen currently has a telemetry system with an auto dialer that contacts personnel in the case of a power failure, low or high water levels, low temperatures in the well houses and lift stations and if a tower overfills. — Sensors Water system sensors and detectors are important for recognizing and correcting emergency situations. Pressure transducers and limit switches should be checked and calibrated regularly. Security The safety of a water supply and distribution system is critical to any community, and acts of vandalism or terrorism should never be allowed to compromise this valuable resource. Currently all entrances to facilities are kept locked. Keys to entrances are provided only to — operators/maintenance personnel. All facilities have electronic intrusion alarms. At this time there is no backup computer system to the telemetry system. Operation and Maintenance Manuals — Operation and maintenance manuals are conveniently located throughout system facilities so as to provide the public works staff with accessible instructions in case of an emergency. — Replacement Parts — An adequate supply of replacement parts is stored at the water utility facilities as recommended by the manufacturers of the equipment in case of an emergency. Appendix E - Water System Emergency Preparedness Plan E- 10 Emergency Response Procedures Water Quality Water quality problems occur due to difficulties that can not be managed by the normal treatment process of the system. Difficulties that might be encountered include source contamination, a stoppage of treatment, or contamination of the distribution system. An extensive monitoring program enables operators to detect contamination in the distribution system. Unfortunately, it takes as long as several days for the necessary data to be generated in a laboratory. When the origin of the water contamination is unknown, each phase of the water supply system should be inspected for possible problems. Data on probable contaminants in the water system should be part of the community's emergency response plan. When there is reason to believe that a water supply has been contaminated, consumers and health authorities should be contacted without delay. Informing the consumers of the emergency is especially important, as they should be informed on whether to boil the drinking water or not use the water. Storms The effect of storms on water facilities are typically fires, flooding, power outage, or lightning damage to equipment. Structural damage to towers and buildings may also occur depending on the type of storm. In the event of a power outage, storm damage or lightning damage to equipment, the City will: 1. Determine the available storage volume. 2. Contact the electric utility and get an estimated time for power restoration. 3. Assess damage to controls and sensing equipment. Appendix E - Water System Emergency Preparedness Plan E- 11 Depending on the outcome of the above assessment, Chanhassen will: • Obtain an emergency generator and operate wells on emergency power — • Notify fire department • Contact the Chanhassen Civil Defense Director • Operate the system manually Droughts Monitoring of the weather can enable one to predict the possibility of a drought occurring. — During drought periods, tower levels, well output, and weather will be monitored at least three times per day. The monitored information will be used to help determine whether any triggers have been reached. — Floods All pumphouses are located well above the 100 year flood elevation. In a flood, the Chanhassen Public Safety Director will establish an emergency team, which would include the Public Works — Department. River levels are monitored through the Sheriffs Department, weather service, and Corps of — Engineers. During floods, the Public Works Department will look for flooded hydrants, water main breaks, or other potential cross connections of the public water system with the — contaminated river water. Personnel — In any emergency, it is necessary for the public works staff to know their respective duties in resolving the crisis. At the City, all water operators are trained in emergency procedures. It is the City's policy that all operators attend continuing education on emergency procedures. Appendix E - Water System Emergency Preparedness Plan E- 12 _ Emergency Reporting Information Chanhassen Water Utility Use this form to report an emergency that appears to involve water service. Immediately contact the Public Works Department . Emergency telephone numbers are attached to this form. 1 . Person reporting emergency Phone no. Time report was received Date report was received 2 . Location of emergency Street and house/building number Other (approximate location, distance from landmark, etc. ) 3 . Condition at scene [check appropriate box(es) ] ❑ Escaping Water o Seepage ❑ Free-flowing ❑ Gushing ❑ Flooding o Roads ❑ Intersections o Property o Buildings o Erosion ❑ Banks 0 Foundations o Electrical Power ❑ Interruptions o Total loss of o Change in Water power o Odor Quality o Taste ❑ Clearness o Color 4 . Briefly describe the situation, citing any actual or potential damage. 5 . Access restrictions, if any 6 . Assistance already available (who, what are they doing, etc. ) 7 . Other comments Signature of Person Who Filled Out Form _ *For use by personnel likely to see or become involved in water system emergencies . Appendix E - Water System Emergency Preparedness Plan E- 13 EMERGENCY PHONE NUMBERS Chanhassen Water Utility — Public Safety 911 (Emergency) 361-1231 (Information only) Fire 911 (Emergency) 934-9191 (Chanhassen Station) 474-7094 (Minnewasta Station) Public Works Director Office: 474-4127 Charles Folch Home: 448-6135 — Mobile: 369-3461 ..... .. . .. . . ... .... . .. .. . . ..... .. . . ... .. .... .......... ... . . .................................. ........................................... .. ....... .. .................................................................................................................................................................... ............... . . ...... . .. ....... ..... .. ....... . . . .. . .. .. . . . . .. .. .. .. .......... . . ........ ...... .... .......... ............................................................................. ... ............................................................ .............................................................................................................. . . ...... .... ..... .... Water Superintendent Office: 474-2086 — Gerald Boucher Cell No.: 865-5129 Emergency P_ger: 648-7681 City Administrator Office: 937-1900 ext 110 Don Ashworth Home: 934-2394 ...................... ... . . .. ......... .. ................................................... .. ............................................................................ ......................... Well Repair: Bergeson Caswell Office: 479-3121 E. H. Renner& Sons Office: 427-6100 Keys Well Drilling Co. Office: 646-7871 Alberg Water Services Office: 263-1800 — Layne Minnesota Office: 781-9553 Traut Wells Office: 728-5091 Water Quality Problems: DNR Office: 297-2835 Pollution Control Agency Office: 649-5451 Minnesota Department of Health Office: 623-5414 DNR Water Appropriation Total Number of Service Permit Number: 816089 Connections— 1997: 5,114 Appendix E - Water System Emergency Preparedness Plan E- 14 Appendix F Appendix F - Water Conservation Plan Role of Conservation The water conservation plan for the City of Chanhassen is intended to reduce the demand for water, improve the efficiency of water use, and reduce loss and waste of water. Conservation can be an alternative to developing additional sources of water to meet peak demands for non- essential uses of water. Reducing the peak use of water will delay or reduce additional source development and water storage requirements. The City's conservation goal is to reduce both the average and maximum day demands. For the Water Supply and Distribution Plan, the City has adopted the following conservation goals: • Reduce the average day residential demand 5%, from 95 gcd to 90 gcd. • Reduce the residential maximum day to average day ratio from 3.00 to 2.86, or a 5% reduction. From Table 3, the maximum day to average day ratio has been over 2.86 four out of the last ten years. — Demand reduction programs will target uses associated with peak demands, such as outdoor water practices. By reducing the amount of water used for watering lawns and plants, -- Chanhassen intends to reduce peak demand and maintain the reduced demand over the next planning period. Specific program initiatives will be provided in more detail under the heading Water Conservation Programs. Future revisions of this report should adjust projected water demands based on the results of the City's conservation plan. Appendix F - Water Conservation Plan F- 1 Water Conservation Potential The City of Chanhassen is a growing community with an increasing population base. The overall demand on the water system has increased steadily over the past ten years. In communities with growing populations and planned system expansions, water conservation can play an important role in the management of water resources. Adopting water efficient practices as a part of the City's Best Management Practices may delay the development of additional wells. Since Chanhassen's water system is growing and the peak demand periods are increasing, the focus of the water conservation plan in the future will be on continuing the wise use of water, maintaining the present condition of the water system, and making repairs to the original distribution and supply areas as required. The following is a discussion of water conservation potential for each of the areas addressed in the Water Supply Plan as well as conservation potential for the various customer classes. Per Capita Water Use Per capita water use information is beneficial because it shows who is using the water and how much water they are using on average. Chanhassen's residential per capita water use has ranged from 64 to 95 gallons per capita per day (gcd) since 1992 records have been taken. The water usage in any year is highly dependent on climatic and other conditions. The design of Chanhassen's water system must be based on peak usage years. Water use would be expected to be at least 95 gcd in another dry year. Therefore, Chanhassen has selected 95 gcd as the starting point for its conservation program. The residential sector will see some decrease in their gallons per capita per day over the next decade due to the replacement of high water using fixtures that will occur due to the passage of the 1992 Federal Energy Act, and implementation of education programs. Therefore, a 5% reduction in the residential per capita use is realistic. Appendix F - Water Conservation Plan F- 2 Water Demand by Customer Category Clearly it is appropriate to create conservation programs that target customer categories. The following discussion outlines the conservation potential for each customer category. Residential Customers: Although the residential sector comprises over 97% of the connections, they consumed only 66% of the total water pumped in the last five years. The greatest potential — for water savings for residential customers is utilizing water efficient habits and implementing water efficient outdoor water practices. Utilizing water efficient practices would reduce the total water pumped annually as well as decrease some of the peak demand periods. Therefore, a — modest goal of 5% to 10% reduction in residential use is appropriate. Institutional: The institutional sector uses under 1% of the total water pumped each year. — Schools are good candidates for water conservation programs because they have a captive audience (i.e. the students) and benefit from the cost savings derived by using less water. However, it is not realistic to hope that conservation programs targeted at the institutional sector will save a significant amount of water. The best goal of institutional conservation programs is to educate people and serve as a model conservation program to the rest of the community. — Commercial/Industrial: The commercial sector/industrial uses nearly 25% of the total water pumped. During the last five years, the demand for water has remained fairly constant with a — small increase in the number of connections. Private businesses usually benefit from conservation programs if there is sufficient payback potential. It is difficult to target conservation programs _ toward commercial users because their uses are usually industry specific. For instance, a car wash is going to use large amounts of water. If the payback is sufficient for the owner to invest in technology for recycling water, the owner will usually undertake the improvement. For — businesses, the payback needs to be there in order to justify the upgrade. However, the City could target education initiatives to business owners and provide them with resources to seek out about water conservation potential. Unaccounted for water: The unaccounted for water use has been under 10% for the last three _ years, which is within American Water Works recommendations. The City should always strive to reduce the amount of water that is unaccounted for - both from an environmental and a revenue perspective. Most of the unaccounted water is attributed to semiannual flushing of mains — and new water main construction. Appendix F - Water Conservation Plan F- 3 — Seasonal and Peak Water Demands Water conservation in Chanhassen will have its greatest impact on seasonal and peak water demands. As shown in Table 4 of the Water Supply Plan, there have been four years in the past ten years where the maximum day demand has been almost three times the average day usage. Although the maximum day event does not occur often, the peak demands place an enormous amount of stress on the system and govern the design of the water system. Targeting the maximum day demands will have the greatest impact on the size and amount of facilities the City needs to construct. Through an appropriately targeted water conservation program, Chanhassen intends to reduce the demands placed on the water system during peak periods. Water Conservation Programs Formal water conservation planning is a relatively new concept for many water utilities, and the City of Chanhassen is no exception. The City of Chanhassen has adopted policies that encourage conservation such as metering of customers and sprinkling restrictions. The challenge for conservation program development is targeting uses that can be reduced through physical change (fixture retrofits) and habitual changes. These changes can be encouraged through a number of different water conservation programs such as education initiatives, retrofit programs and rebates. The key for effective water conservation programs in Chanhassen is planning. As Chanhassen's population grows, so will the demand for drinking water and wastewater treatment services. Through appropriate water conservation measures, capital expenditures for increased demands can be delayed or reduced, which is a large financial saving for the community. Appendix F - Water Conservation Plan F- 4 The following is a discussion of current conservation measures, an implementation plan for further conservation measures,and criteria for evaluating the effectiveness of the conservation program. _ 1. Metering: All current and future water users are and will be metered. The City currently checks meters on the system and replaces worn meters as necessary. Meters are currently — read quarterly. The billing system automatically identifies users that have experienced a large change in — usage. This information initiates a meter check from the utility staff. Implementation Plan: The City will continue to check and replace worn meters including repairing and calibrating the large meters at the well pump houses. 2. Water Audits, Leak Detection and Repair: Unaccounted-for water is the difference between the volume of water sold and the volume of water withdrawn from the source. Unaccounted for water use (listed in Table 5 as "Unaccounted For") has varied from 1.5% to 19.4% with a five-year average at 8.6%. As the system ages, the City will need to continue to maintain the system and promptly repair leaks. The majority of the — unaccounted for water is due to water main breaks, semiannual hydrant flushing, and new water main construction. Implementation Plan: These uses will continue to be monitored with a goal of maintaining unaccounted for water at less than 10%. Appendix F - Water Conservation Plan F- 5 _ 3. Conservation-Oriented Water Rates: The City currently bills it's customers quarterly. The City has established a hybrid rate structure that incorporates both uniform and increasing rates. This type of rate structure has been shown to be an effective conservation measure. The City will continue to investigate alternative rate systems (including increasing block rates). The current rate structure is shown below. — Minimum(up to 5,000 gallons per quarter) $6.35 Usage from 5,000 to 25,000 gallons 1.30 per 1000 Usage over 25,000 gallons 1.50 per 1000 Water Quality Testing Charge 2.00 per quarter The rate system has been developed to pay for the true cost of supplying, treating and delivering the water, including maintenance. Future capital expenditures will be financed through trunk hook-up charges and assessments. Implementation Plan: The City will periodically evaluate the rates to insure that revenue is covering expenditures. 4. Regulation: The City relies on the following regulations to provide short-term demand reduction and long-term improvements in water use efficiencies. A. State and Federal Plumbing Codes: All new homes and retrofits of existing homes will have water efficient fixtures. B. Short-term Reduction Procedures: Described in the Emergency Preparedness Plan. Implementation Plan: The effectiveness of the new water use restrictions will continue to be reviewed. 5. Education and Information Programs: The City will continue to make a concentrated effort to educate the public on the benefits of water conservation. The education process will include regular "bill stuffers" (available from AWWA), school curriculums on water resources (National Drinking Water Week), and direct mailings to encourage voluntary water reduction measures. — During sprinkling bans and emergency periods, public service announcements will be issued in the local paper, and special mailings will be issued to inform the customers. 6. Retrofitting Programs: The City Building Inspector will enforce the existing plumbing codes relating to retrofitting existing water fixtures. As the gallons per capita per day are low, the City will not pursue a mandated retrofit program for the residential sector. The payback for a residential program would be too long to justify the cost. With the enactment of the 1992 Federal Energy Policy Act, all fixtures available for replacement are water savers. As homeowners gradually begin to replace aging fixtures or remodel — their homes, the high use fixtures will be replaced by water saving fixtures. The payback for a residential customer will depend upon fixture use and home water habits. If the Appendix F - Water Conservation Plan F- 6 residential gallons per capita dramatically increases and it appears that there may be a good savings potential for a city wide retrofit program, the City will revisit the possibility - of funding a retrofit program at that time. Implementation Plan: Retrofit programs make sense for public buildings provided it is a — part of the maintenance program, or regular replacement schedule of parts. Gradually, all higher use fixtures will be replaced with lower consumption fixtures, and because the change out will occur as older parts need replacing, there should not be much of a — financial impact on the public buildings' budgets. Water sensors for residential, commercial and industrial sprinkling systems may also be — evaluated,regarding what the payback is etc. 7. Pressure Reduction: The City water system has been designed to ensure that static and — residual pressures in the water service area are maintained between 30 psi and 90 psi. Depending on the number of effected properties in any area with pressures predicted to be above 90 psi, main system, or individual pressure reducing valves are implemented. — 8. Large Water Users: As shown on Table 6, Chanhassen has some commercial, industrial, and institutional customers that have acceptable water demands. Chanhassen will — continue to ensure that large water users do their "fair share" of conserving water. All of the conservation programs described above also apply to commercial, industrial, and institutional users. Currently, no Large Water User demands are above the 5% total — production. Implementation Plan: In the future, if Large Water User demands increase and demand over the 5% total production, the Water Utility Supervisor and City Engineer will meet with each of the largest water users to discuss ways each user could conserve water. Representatives from Metropolitan Council Wastewater Services will be invited to attend the meetings to discuss potential savings conservation could bring to the wastewater side. Further action will be decided after these meetings. Appendix F - Water Conservation Plan F- 7 — Appendix G Chapter 19 WATER, SEWERS AND SEWAGE DISPOSAL Art. I. In General, §§ 19.1-19-15 Art. II. Municipal Water Supply and Distribution System, §§ 19.16-19.40 Art. III. Municipal Sanitary Sewage Disposal System, §§ 19-41-19-65 Art. IV. Individual Sanitary Sewage Treatment Systems, §§ 19.66-19.95 Art. V. Storm Sewers, §§ 19-96-19.125 Art. VI. "Section 201" Sewer Systems, §§ 19-126-19-139 Art. VII. Surface Water Management, §§ 19-140-19-148 — ARTICLE I. LN GENERAL _ Secs. 19-1-19-15. Reserved. ARTICLE H.MUNICIPAL WATER SUPPLY AND DISTRIBUTION SYSTEM* Sec. 19-16. Reserved. Editor's note—Section 1 of Ord.No. 168, adopted April 27, 1992,repealed former§ 19-16, which pertained to penalties and derived from Ord. No. 6, § 9.01, adopted Mar. 11, 1985. Sec. 19-17. Access to premises. The owner or occupant of premises served by the water supply system shall give city personnel access to the premises at reasonable times for the purpose of making inspections in connection with the enforcement of this article. — (Ord. No. 6, § 3.04, 3-11-85) Sec. 19.18. Service shut off and on. (a) Water shall not be shut off for nonpayment of a water bill until notice of an opportu- nity for a hearing has first been given the occupant of the premises involved.The notice shall state that if payment is not made before a day stated in the notice,but not less than thirty(30) days after the date on which the notice is given, the water supply to the premises will be shut off. The notice shall also state that the occupant may, before such date, demand a hearing on the matter. If the customer requests a hearing before the date specified, a hearing shall be held on the matter by the city council at its next regular meeting,but not to exceed three(3) weeks after the date on which the request is made. If as a result of the hearing, the city council finds *State law references—Power of city council to provide and regulate the use of wells, cisterns, reservoirs, waterworks and other means of water supply, M.S. § 412.221, subd. 11; power of city council to compel connections to water mains, M.S. § 412.221, subd. 31; water- works systems, M.S. § 444.075. Supp. No. 5 1063 § 19-I8 CHAS"-IASSEN CITY CODE :ha: the amount claimed to be owing is actually due and unpaid and that there is no Iegal reason why the water supply of the delinquent customer may not be shut off,the city may shut off:he supply. ib) It is unlawful for any person, firm, or corporation to turn on or off any water control valve installed on the city water supply system on city property, right-of-way, or easement. This includes,but is not limited to, all fire hydrants,water main control valves, water service control valves for industrial and commercial properties and curb stops for residential water services. The following are exempted by this prohibition 1) City employees that are authorized to maintain the city water distribution system,or who have administrative approval. • (2) Emergency personnel affiliated with the city for use in emergency situations. This includes the fire department.. (3) Persons having written approval in their immediate possession from the utility su- per intendent. Properties with water turned on without authorization shall be charged a one hundred dollar (S100.00)service and water use fee.Properties with new structures under construction shall be required to pay the fee before the certificate of occupancy is issued. (Ord. No. 6, § 10.01, 3-11-85; Ord. No. 168, § 1, 4-27-92) Sec. 19-19. Use required; wells prohibited. ;a) Issuance of building permits for new construction where the property is adjacent to a municipal watermain, or in a block through or to which the watermain extends, or is within one hundred fifty (150) feet of the water system shall be conditioned upon connection to said municipal water system,unless in the opinion of the city it is neither feasible nor practical to make such connection. Co) The drilling of new wells shall not be permitted for existing dwellings which can be - serviced by the municipal water system. Upon failure of a private water supply, connection to the municipal system shall be required. (Ord. No. 6, § 1.01, 3.11.85) State law reference—Authority to require connections, M.S. § 412.221, subd. 31. Sec. 19-20. Connection charges. (a) No permit shall be issued to tap or connect with any watermain of the city either directly of indirectly from any lot or tract of land unless the city clerk shall have certified: (1) That the lot or tract of land, or portion of said lot or tract, to be served by such connection to tap has been assessed for the cost of construction of the watermain with which the connection is made; or '2) If no assessment has been levied for said construction cost, that proceedings for levying such assessment have been or will be commenced in due course; or Supp. No. 5 1064 WATER, SEWERS AND SEWAGE DISPOSAL § 19-21 (3) If no assessment has been levied, and no assessment proceedings will be completed in due course, that a sum equal to the portion of cost of constructing said watermain has been paid to the city pursuant to subsection (b). (b) The applicant shall pay a connection fee that is just and equitable in an amount established by the city council.The amount of the charge shall be automatically adjusted each year on January 1 to reflect construction cost changes in the local Minneapolis region as evidenced by the Engineering News-Record Construction Cost Index. (c) Upon written request of the owner of the benefited property showing good cause,the city council may provide that the connection charge be specially assessed against the benefitted property payable in semiannual installments for a term of eight (8) years at an interest rate set by the city council. Unless deferred payment is so authorized, all connection charges shall be payable in full prior to the issuance of a building permit. (Ord. No. 6, § 7, 3-11-85; Ord. No. 236, § 1, 3-27-95; Ord. No. 261, § 1, 1-27-97) Sec. 19-21. Hook-up charges. (a) In addition to the connection charges set forth herein, a hookup charge, unless charged as a part of a public improvement project, shall be imposed against each lot or tract of land, or portion thereof, served by the system for the usage of wells, pumping stations, water storage facilities, and equipment of the city water system. The amount of this charge shall be automatically adjusted each year on January 1 to reflect construction cost changes to the local Minneapolis region as evidenced by the Engineering News-Record Construction Cost Index. (b) The number of unit hook-up charges to be levied against each benefitted lot or tract of land, portion thereof, shall be established using the following criteria: (1) Single-family houses, townhouses, condominiums and duplex units shall each com= prise one (1) unit; (2) Apartments shall each comprise eighty (80) percent of a unit; (3) Mobile homes shall each comprise one hundred (100) percent of a unit; (4) Other buildings and structures shall be assigned one (1) unit for each two hundred seventy-four (274) gallons of water usage and sewage flow which it is estimated they will discharge, and commercial and industrial building units shall be assigned a minimum of one (1) unit. (c) The number of unit hook-up charges to be levied against the premises may thereafter be revised by resolution of the city council to more accurately establish the use, and the council in making said redetermination may take into account the actual quantity of water consumed on said premises. (d) Upon written request of the owner of the benefitted premises showing good cause, the city council may provide that the hook-up charge be specially assessed against the benefitted _ property payable in semi-annual installments for such period and on such terms as the council Supp. No. 9 1065 § 19-21 CHANHASSEN CITY CODE may determine. Unless deferred payment is so authorized, all hook-up charges shall be payable in full prior to the issuance of a building permit for new construction on the property. (Ord. No. 6, § 8.01, 3-11-85; Ord. No. 261, § 2, 1-27-97) Sec. 19-22. Persons authorized to make connections, etc.; bond. (a) Work which in any way affects the city's water lines or connections thereto shall be performed only under the direct supervision of a master plumber licensed by the state. Any person, however, with prior approval of the plumbing inspector may apply for a permit to do — plumbing work which complies with the provisions of the minimum standards prescribed by the state commissioner of health on premises or that part of premises owned and actually occupied by the worker as a residence. (b) In the event that the permitted work includes any direct contact with the city's water system or the alteration of a city street, the plumber shall file with the city a corporate surety _ bond approved by the city in the sum of two thousand dollars ($2,000.00) conditioned that he will perform competently all work with due care and skill, and in accordance with state and city laws, ordinances, rules, and regulations. The bond shall provide that the principal and surety shall indemnify and save harmless the city and the owner of the premises for which the work is to be performed against all damages, costs, expenses, and claims of every nature arising out of violation of state and city laws, ordinances, rules and regulations, lack of skill, or negligence on the part of the principal in connection with the performance of any work hereunder or the furnishing of materials therefor. The bond shall remain in force for a period of one(1)year,except that on such expiration it shall remain in force as to all penalties,claims, and demands that may have arisen thereunder prior to expiration.Bond requirements may be waived by the building official for. (1) Persons seeking plumbing permits for work on premises owned and occupied as a residence by permittee. (2) Master plumber seeking plumbing permits on premises owned and occupied by permittee's employer. (Ord. No. 6, § 2.01, 3-11-85; Ord. No. 168, § 3, 4-27-92) Sec. 19-23. Permit for connections, etc. (a) Required. Work which is regulated by the Minnesota Plumbing Code, or that affects the city water lines or city sanitary sewer system shall not be performed without first obtaining a written permit from the city. Supp. No. 9 1066 WATER, SEWERS AND SEWAGE DISPOSAL § 19-23 (b) Application.To obtain a permit, the applicant shall file a written application on a form furnished by the city's building official for that purpose. Every such application shall: — (1) Describe and identify the work to be covered by the permit for which application is made. (2) Describe the land upon which the proposed work is to be done by legal description, street address, or similar desmiption that will readily identify and definitely locate the proposed building or work. (3) Indicate the use or occupancy for which the proposed building or work is intended. (4) Be accompanied by plans, diagrams, computations, and other data as required in subparagraph (d) of this section. (5) Be signed by the permittee or the permittee's authorized agent,who may be required to submit evidence to indicate such authority. (6) Give such other data and information as may be required by the building official. (c) Plans and specifications. Plans, engineering calculations, diagrams, and other data shall be submitted in one (1) or more sets with each application for a permit. The building official may require plans,computations,and specifications to be prepared by and the plumbing designed by an engineer or architect licensed by the state to practice as such. The building official may waive the submission of plans, calculations, or other data if the nature of the permit applied for is such that reviewing of plans is not necessary to ensure compliance with _ the plumbing code. (d) Permit issuance. The application, plans, specifications, computations, and other data filed by an applicant for permit shall be reviewed by the building official. Plans may be reviewed by other city departments to verify compliance with applicable laws. If the building official finds that the work described in an application for a permit and the plans, specifica- tions and other data filed therewith conform to the requirements of this code and other pertinent laws and ordinances and that the fees have been paid, the permit shall be issued. Wti nen the building official issues the permit where plans are required,the building official — shall endorse in writing or stamp the plans and specifications "APPROVED." Such approved plans and specifications shall not be changed, modified, or altered without authorization from the building official and all work shall be done in accordance with the approved plans. The building official may issue a permit for the construction of a part of a plumbing system before the entire plans and specifications for the whole system have been submitted or — approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holder of such permit may proceed at his or her own risk without assurance that the permit for the entire building, structure,or plumbing — system will be granted. (e) Retention of plans. One(1)set of approved plans,specifications,and computations shall be retained by the building official until final approval of the work covered therein.One(1) set Supp. No. 5 1067 _ § 19.23 CHANHASSEN CITY CODE of app.moved plans and specifications shall be returned to the applicant, and the set shall be kept on the site of the building or work at all times during which the work authorized thereby is in progress. f Validity of permit. The issuance of a permit or approval of plans, specifications, and co:—mutations shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of other ordinances of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or of other ordinances of the jurisdiction shall not be valid. The issuance of a permit based upon plans, specifications, computations, and other data shall not prevent the building oflirial thereafter requiring the correction of errors in the plans, specifications, and other data or from preventing building operations being carried on there- - under when in violation of this code or of other city ordinances. (g,` Expiration. Every permit issued by the building official under the provisions of this cede shall expire by limitation and become null and void if the work authorized by such permit is not commenced within one hundred eighty(180)days from the date of such permit,or if the work authorized by such permit is suspended or abandoned at any time without an inspection for a period of one hundred eighty (180) days. Before such work can be recommenced, a new permit shall be first obtained to do so, and the fee shall be one-half the amount required for a new pe_-mit for such work,provided no changes have been made or will be made in the original plans and specifications for such work and provided further that such suspension or abandon- ment has not exceeded one (1)year. No permit shall be extended more than once.In order to renew action on a permit after expiration, the permittee shall pay a new full permit fee. A pe.rmi ee holding an unexpired permit may apply for an extension of the time within which the permittee may commence work under that permit when the permittee is unable to com- mence work within the time required by this section for good and satisfactory reasons. The building official may extend the time for action by the permittee for a period not exceeding one hundred eighty(180) days upon written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken. 'h; Suspension or revocation. The building official may, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied or in violation of other ordinance or regulation of the jurisdiction. :i) Investigation fees; work without a permit. Whenever work for which a permit is re- quired by this article has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued.The investigation fee shall be equal to the amount of the permit fee that would be required by this article if a permit were to be issued, the payment of such investigation fee shall not exempt any person from compliance with all other provisions of this article, nor from any penalty prescribed by law. {Ord. No. 6, § 2.01, 2.02, 3-11-85; Ord. No. 168, § 4, 4-27-92) Supp. No. 5 1068 WATER, SEWERS AND SEWAGE DISPOSAL § 19-26 Sec. 19-24. Meters. a. Except for the extinguishment of fires, no person except authorized city personnel shall use water from the water supply system or permit water to be drawn therefrom, unless the same shall be metered by meters furnished and installed by the city which meters shall ren-.air. the property of the city. A meter charge equal to the cost of the meter and accessories, incl tiding administrative costs,shall be paid upon each application for permit to connect to the _ water supply system. :'b; The city shall, at its expense, maintain and repair all meters when rendered unser- viceable through ordinary usage, and shall replace meters when necessary. When replace- ment, repair or adjustment of any meter is made necessary by the act or neglect of the consumer, all cost incurred thereby shall be charged against the consumer, and water service may be discontinued until such cost has been paid.In the event city personnel determine that — a water meter or remote have been tampered with to intentionally affect the true meter reading, a fine of fifty dollars($50.00)shall be included on the next quarterly billing.Repeated tampering shall be grounds for shutoff of the water service in the manner provided in section 19-18. :.c; Installation of remote water meter readers shall be required on all structures serviced — by the municipal water system. All readers installed after March 11, 1985 shall be installed on the front side of the structure to allow for year-round accessibility. All shrubbery planted in the vicinity of the reader shall be maintained so that city personnel may read said remote — without difficulty. Exceptions concerning placement shall be allowed only as approved by the city. (Or=_ N 6, § 3.01-3.03, 3-11-85) — Sec. 19.26. Service lines. I: shall be the responsibility of the city to maintain the service line from the watermain to, but not including, the curb box but in no case beyond the property line. In case of failure on the part of any consumer or owner to repair any leak occurring in the service line from the curb box to the structure being served within twenty-four(24)hours after oral or written notice has been given such individual, the water shall be shut off until the line is repaired.The owner shall be responsible for ensuring that the curb box is straight and keyable at all times so that sections of the city system do not have to shut down for private system repairs. Final plumbing inspection shall include verification that the curb box is operational. (Ord. No. 6, § 3.05, 3-11-85) Sec. 19-26. Water line and connection specifications. .a' Watermains, valves, hydrants, service connections and interior plumbing shall be installed as specified by the current edition of the state plumbing code. b A separate and independent building water line shall be provided for every building except were a building stands at the rear of another on an interior lot and no building waterline can be constructed to the rear building through an adjoining street,alley,courtyard, Supp. No. 7 1069 § 19-26 CHANHA.SSEN CITY CODE or driveway. In such case, the building waterline from the front building may be extended to the rear building and the whole considered as the building water system. Other exceptions may be allowed only by special permission granted by the city. (Ord. No. 6, § 2.02, 5.01, 3-11-85) Sec. 19-27. Inspections and city supervision of work (a) Inspections of all interior plumbing and exterior services,including connections to the municipal water system, are required. The permit holder is responsible to arrange for such inspections which are performed between 8:00 a.m.and 4:00 p.m. on weekdays, except public holidays. (b) Any direct connection to or tapping of the actual main line shall be supervised by the city. Depending on the availability of the inspector, trenches may have to remain open for some period of time and in some instances overnight.In such cases the permit holder shall be responsible to enclose the opening to ensure pedestrian and vehicular safety. (Ord. No. 6, § 2.03, 3.11-85; Ord. No. 168, § 5, 4.27-92) Sec. 19.28. Water use restriction. Use of the city water supply system for lawn and garden sprinkling,irrigation,car washing or other nonpotable uses shall be limited to an odd-even schedule corresponding to property address effective each year from May 1 to September 30. Whenever the city council or, on a temporary basis, the public works director andior the public safety director, shall determine that a shortage of the water supply threatens the city, they may, by resolution, limit the use, times and hours during which water may be used from the city water supply system. Special permit consideration will be given for those property owners with new seed or sod. Ord. No. 6, § 4.01, 3-11-85; Ord. No. 210, § 1, 6-27-94) Sec. 19.29. User rates and charges. (a) Quarterly water usage rates shall be set on an annual basis by resolution of the city council. (b) The city clerk shall prepare and mail to the consumer a statement for water service furnished each consumer premises during the preceding quarter.All statements shall specify the water consumed and the charges therefor. (c) The city clerk shall compute the amount due to the city for water charges and render a quarterly statement thereof.All amounts due as shown on the statement shall be payable at the municipal building on or before the twentieth day of the month in which the statement is presented. A penalty of ten(10) percent shall be added to all accounts that are not paid in full by said due date. This penalty shall be computed on the unpaid balance not paid by the appropriate due date at the time each quarterly statement is prepared and presented.The city reserves the right to shut off water service if the account is delinquent for an unreasonable length of time as determined by the city. Supp. No. 7 1070 WATER, SEWERS AND SEWAGE DISPOSAL § 19-41 (d) In the event any water service charge is not paid within three(3)months after the time it is rendered, the city council may recover said amount in an action brought in any court of competent jurisdiction, or in the alternative, may certify the amount due together with pen- alties to the county auditor to be collected with other real estate taxes levied against the premises served. (e) When termination of water service is requested by a consumer, the city clerk shall direct the water superintendent to turn off the service to the premises involved. The meter — shall be read at that time and a final bill rendered to the consumer.Water service shall not be restored to the premises except upon the payment of all prior service charges. (D In the event a meter is found to have stopped, or to be operating in a faulty manner, the amount of water used by the consumer shall be estimated, which estimate shall be based on prior consumption. (Ord. No. 6, § 6, 3-11-85) Secs. 19.30-19-40. Reserved. ARTICLE III.MUNICIPAL SANITARY SEWAGE DISPOSAL SYSTEM` Sec. 19-41. Connection required. (a) The owner of each existing building or structure from which sewage or industrial waste is drained and which is located on premises adjacent to a sewer of the city sanitary sewer system, or in a block through or to which the sanitary sewer system extends, or is within one hundred fifty(150) feet of said sanitary sewer system, shall cause the premises to be connected with the sanitary sewer system of the city within twelve (12) months after such connection becomes available to any such premises, unless, in the opinion of the city council after con- sultation with the city engineer, it is neither feasible nor practical to make such connection. (b) All buildings and structures constructed within the city after March 11, 1985, on premises adjacent to a sewer of the city sanitary sewer system, or in a block through or to which the sanitary sewer system extends, or is within one hundred fifty (150) feet of said sanitary sewer system, shall be connected to the city sanitary sewer system for the disposal of sewage or industrial waste. (c) Any person required by this section to connect premises with the sanitary sewer system shall cause such connection to be made within thirty (30) days after receipt of written _ notice from the city ordering the connection. Service of the notice shall be sufficient if served personally upon such person or served by certified mail addressed to such person at the premises. 'State law references—Authority of city to establish and maintain sewers,M.S.§412.221, subd. 6;authority of city to provide for or regulate the disposal of sewage,M.S. §412.221,subd. 22; power of city to compel sewer connections, M.S. § 412.221, subd. 31; sewers and sewage disposal systems, M.S. § 444.075. Supp. No. 5 1070.1 § 1941 CHA HASSEN CITY CODE d) Whenever any owner shall fail to comply with such written notice, the city council may, by resolution,direct that a connection be made with the sanitary sewer and that the cost of the installation be assessed against the property benefitted. (e) After such city installation and connection is completed by order of the council,the city clerk shall serve a written notice of the assessment upon the owner directing him to pay said assessment to the city within ten (10) days after the service of said notice. If such assessment is not paid within ten (10) days the city clerk shall certify the amount thereof to the county auditor for collection in the same manner as other special assessments for such a period and under such terms as the city council shall determine. (Ord. No. 6, § 1.02-1.04, 3-11-85; Ord. No. 168, § 6, 4.27-92) State law reference—Authority to require sewer connections, M.S. § 412.222, subd. 31. Sec. 19-42. Persons authorized to make connections, etc.; bond. (a) Work which in any way affects the city's sewer lines or connections thereto shall be performed only under the direct supervision of a master plumber licensed by the state. Any person, however, with prior approval of the plumbing inspector may apply for a permit to do plumbing work which complies with the provisions of the minimum standards prescribed by the state commissioner of health on premises or that part of premises owned and actually occupied by the worker as a residence. (b) In the event that the permitted work includes any direct contact with the city's sewer system or the alteration of a city street, the plumber shall file with the city a corporate surety bond approved by the city in the sum of two thousand dollars ($2,000.00) conditioned that he will perform competently all work with due care and skill, and in accordance with state and city laws, ordinances, rules, and regulations. The bond shall provide that the principal and surety shall indemnify and save harmless the city and the owner of the premises for which the work is to be performed against all damages, costs, expenses, and claims of every nature arising out of violation of state and city laws, ordinances, rules and regulations, lack of skill, or negligence on the part of the principal in connection with the performance of any work hereunder or the furnishing of materials therefor. The bond shall remain in force for a period of one(1)year,except that on such expiration it shall remain in force as to all penalties,claims, and demands that may have arisen thereunder prior to expiration.Bond requirements may be waived by the building official for: (1) Persons seeking plumbing permits for work on premises owned and occupied as a residence by permittee. (2) Master plumber seeking plumbing permits on premises owned and occupied by per- mittee's employer. (Ord. No. 168, § 7, 4-27-92) Sec. 19-43. Permit for connections, etc. (a) Required. Work which is regulated by the Minnesota Plumbing Code, or that affects the city water lines or city sanitary sewer system shall not be performed without first ob- taining a written permit from the city. Supp. No.5 1070.2 WATER, SEWERS AND SEWAGE DISPOSAL § 19-43 Co: a aplication.To obtain a permit,the applicant shall file a written application on a form furnished by the city's building official for that purpose. Every such application shall: (1) Describe and ide^r'y the work to be covered by the permit for which application is made. (2) Describe the land upon which the proposed work is to be done by legal description, street address, or similar description that will readily identify and definitely locate the proposed building or work — (3) Indicate the use or occupancy for which the proposed building or work is intended. (4) Be accompanied by plans, diagrams, computations, and other data as required in subparagraph (d) of this section. (5) Be signed by the permittee or the permittee's authorized agent,who may be required to submit evidence to indicate such authority. (6) Give such other data and information as may be required by the building official. (c) Plans and specifications. Plans, engineering calculations, diagrams, and other data shall be submitted in one (1) or more sets with each application for a permit. The building official may require plans,computations,and specifications to be prepared by and the plumbing designed by an engineer or architect licensed by the state to practice as such. The building official may waive the submission of plans, calculations, or other data if the nature of the permit applied for is such that reviewing of plans is not necessary to ensure compliance with the plumbing code. (d: Permit issuance. The application, plans, specifications, computations, and other data filed by an applicant for permit shall be reviewed by the building official. Plans may be reviewed by other city departments to verify compliance with applicable laws. If the building official finds that the work described in an application for a permit and the plans, specifica- tions and other data filed therewith conform to the requirements of this code and other pertinent laws and ordinances and that the fees have been paid, the permit shall be issued. When the building official issues the permit where plans are required,the building official shall endorse in writing or stamp the plans and specifications "APPROVED." Such approved plans and specifications shall not be changed, modified, or altered without authorization from the building official and all work shall be done in accordance with the approved plans. The building official may issue a permit for the construction of a part of a plumbing system before the entire plans and specifications for the whole system have been submitted or approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holder of such permit may proceed at his or her own risk without assurance that the permit for the entire building,structure,or plumbing _ system will be granted. (eRetention of plans. One(1)set of approved plans,specifications,and computations shall — be retained by the building official until final approval of the work covered therein.One(1)set Supp. No. 5 1070.3 § 19-43 CHANHASSEN CITY CODE of a_roved plans and specifications shall be returned to the applicant, and the set shall be ke:= on the site of the building or work at all times during which the work authorized thereby is in progress. Validity of permit. The issuance of a permit or approval of plans, specifications, and computations shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of other ordinances of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or of other ordinances of the jurisdiction shall not be valid. The issuance of a permit based upon plans, specifications, computations, and other data shall not prevent the building official thereafter requiring the correction of errors in the plans, sperm:cations, and other data or from preventing building operations being carried on there- under when in violation of this code or of other city ordinances. (g; Expiration. Every permit issued by the building official under the provisions of this code shall expire by limitation and become null and void if the work authorized by such permit is not commenced within one hundred eighty (180) days from the date of such permit,or if the work authorized by such permit is suspended or abandoned at any time without an inspection for a period of one hundred eighty (180) days. Before such work can be recommenced, a new permit shall be first obtained to do so, and the fee shall be one-half the amount required for a new permit for such work,provided no changes have been made or will be made in the original plans and specifications for such work and provided further that such suspension or abandon- ment has not exceeded one (1)year. No permit shall be extended more than once.In order to renew action on a permit after expiration, the permittee shall pay a new full permit fee. A pe.-=i:tee holding an unexpired permit may apply for an extension of the time within which . the permittee may commence work under that permit when the permittee is unable to corn- rnence work within the time required by this section for good and satisfactory reasons. The building official may extend the time for action by the permittee for a period not exceeding one hundred eighty(180) days upon written request by the permittee showing that circumstances _ beyond the control of the permittee have prevented action from being taken. (h) Suspension or revocation. The building official may, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied or in violation of other ordinance or regulation of the jurisdiction. i' Investigation fees; work without a permit. Whenever work for which a permit is re- quired by this article has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued.The investigation fee shall be equal to the amount of the per-unit fee that would be required by this article if a permit were to be issued, the payment of such investigation fee shall-not exempt any person from compliance with all other provisions of this article, nor from any penalty prescribed by law. (Ord. No. 5, §§ 2.01, 2.02, 341-85; Ord. No. 168, § 8, 4-27-92) Supp. No. 5 1070.4 WATER. SEWERS AND SEWAGE DISPOSAL § 19-44 Sec. 19-44. Prohibited discharges into sanitary sewer system. (a) No person shall discharge or cause to be discharged any substance not requiring treatment or any substance not acceptable for discharge, as determined by the city or the Minnesota Pollution Control Agency, into the sanitary sewer system. Only sanitary sewage _ from approved plumbing fixtures may be discharged into the sanitary sewer system. (b) No person shall discharge or cause to be discharged, directly or indirectly, any storm water, surface water, ground water, roof runoff, subsurface drainage, or cooling water to any sanitary sewer. Any person having a roof drain, sump pump, unauthorized swimming pool discharge, cistern overflow pipe or surface drain connected and/or discharging into the sanitary sewer shall disconnect and remove any piping or system conveying such water to the sanitary sewer system by May 1, 1994. (c) All construction involving the installation of clear water sump pits shall include a sump pump with minimum size one and one-half(1V2)diameter discharge pipe.The pipe attachment must be a rigid permanent type plumbing such as PVC or ABS plastic pipe with glued fittings, copper or galvanized pipe. All discharge piping shall be installed in accordance with the plumbing code. Discharge piping shall start at the sump pit and extend through the exterior of the building and terminate with not less than six(6) inches of exposed pipe.The discharge pipe shall be provided for all clearwater sump installations with no regard as to whether the pump is actually installed. Sump pump discharge location and flow shall be consistent with the approved development drainage plan for the lot.The discharge may not be pumped directly onto any public right-of-way unless approved by the city engineer or his designee. Any disconnects or openings in the sanitary sewer shall be closed and repaired in compliance with applicable codes. _ (d) Every person owning improved real estate that discharges into the city's sanitary sewer system shall allow inspection by authorized city employees or its agents of all properties or structures connected to the sanitary sewer system to confirm there is no sump pump or other prohibited discharge into the sanitary sewer system. Any persons refusing to allow their property to be inspected shall immediately become subject to the surcharge as described in section (g) hereinafter. (e) Any owner of any property found to be in violation of this section shall make the necessary changes to comply with this section and such change shall be verified by authorized city employees or its agents. Any property or structure not inspected or not in compliance by May 1, 1994, shall, following notification from the city, comply within fourteen (14) calendar days or be subject to the surcharge as provided in subsection (g) hereinafter. (f) Upon verified compliance with this section,the city reserves the right to reinspect such property or structure at least annually to confirm continued compliance. Any property found not to be in compliance upon reinspection or any person refusing to allow their property to be reinspected shall, following notification from the city, comply within fourteen (14) calendar days or be subject to the surcharge hereinafter provided for. Supp. No. 9 1070.5 § 19-44 CHANHASSEN CITY CODE (g) A surcharge of one hundred dollars($100.00) per month is hereby imposed and shall be added to every sewer billing, to property owners who are found not in compliance with this section. The surcharge shall be added every month until the property is verified to be in compliance through the city's inspection program. (h) The city council, upon recommendation of the city engineer, shall hear and decide requests for temporary waivers from the provisions of this section where strict enforcement would cause a threat to public safety because of circumstances unique to the individual property under consideration. Any request for a temporary waiver shall be submitted to the _ city engineer in writing. Upon approval of a temporary waiver from the provisions of this section, the property owner shall agree to pay an additional fee for sanitary sewer services based on the number of gallons discharged into the sanitary sewer system as estimated by the city engineer. (i) Violation of this section is a misdemeanor and each day that the violation continues is a separately prosecutable offense. The imposition of the surcharge shall not limit the city's authority to prosecute the criminal violations,seek an injunction in district court ordering the person to disconnect the nonconforming connection to the sanitary sewer, or for the city to correct the violation and certify the costs of connection as an assessment against the property on which the connection was made. (Ord. No. 5, § 1.05, 3-11-85; Ord. No. 168, § 9, 4-27-92; Ord. No. 205, § 1, 5-9-94) Sec. 1945. Connection charges. (a) No permit shall be issued to connect with the sanitary sewer system of the city either directly or indirectly from any lot or tract of land unless the city clerk shall have certified: (1) That the lot or tract of land, or portion of the lot or tract, to be served by such connection has been assessed for the cost of construction of the sanitary sewer lateral with which the connection is made; or (2) If no assessment has been levied for said construction cost,that proceedings for levying such assessment have been or will be commenced in due course; or — (3) If no assessment has been levied, and no assessment proceedings will be completed in due course, that a sum equal to the portion of cost of constructing said sanitary sewer which would be assessable against said lot or tract has been paid to the city as outlined in subsection (b) below. (b) The applicant shall pay a connection [fee] that is just and equitable in an amount established by the city council. The amount of the charge shall be automatically adjusted each year on January 1 to reflect construction cost changes for the local Minneapolis region as evidenced by the Engineering News-Record Construction Cost Index. _ (c) Upon written request of the owner of the benefitted premises showing good cause, the city council may provide that the connection charge be specially assessed against the benefitted property, payable in semiannual installments for a term of eight (8) years at an interest rate set by the city council. Unless deferred payment is so authorized, all connection charges shall be payable in toll prior to the issuance of a building permit. (Ord. No. 5, § 5, 3-11-85; Ord. No. 236, § 2, 3-27-95; Ord. No. 261, § 3, 1-27-97) Supp. No. 9 1070.6 WATER, SEWERS AND SEWAGE DISPOSAL. § 19-48 Sec. 19-46. Hook-up charges. (a) In addition to the connection charges set forth herein, a hookup charge, unless charged as a part of public improvement project, shall be imposed against each lot or tract of land, or portion thereof served by the sewer system for usage of the sewer treatment facilities, lift stations, forcemains, and trunk sewers. The amount of this charge shall be automatically adjusted each year on January 1 to reflect construction cost changes to the local Minneapolis region as evidenced by the Engineering News-Record Construction Cost Index. (b) The number of unit hook-up charges to be levied against each benefitted lot or tract of land, or portion thereof, shall be established by using the following criteria: (11 Single-family houses, townhouses, condominiums and duplex units shall each com- prise one (1) unit; (2) Apartments shall each comprise eighty (80) percent of a unit; (3) Mobile homes shall each comprise one hundred (100) percent of a unit; (4; Other buildings and structures shall be assigned one 1 unit for each two hundred seventy four(274)gallons of water usage which it is estimated they will discharge,and commercial and industrial building units shall be assigned a minimum of one(1)unit. (c) The number of hook-up charges imposed against the premises may thereafter be revised by resolution of the city council to more accurately establish the usage of the system, and the council in making said redetermination may take into account the estimated strength and quality of sewage to be discharged into the sanitary sewer system. (d) Upon written request of the owner of the benefitted premises showing good cause, the city council may provide that the hook-up charge be specially assessed against the benefitted property payable in semi-annual installments for such period and on such terms as the council may determine. Unless deferred payment is so authorized, all hook-up charges shall be payable in full prior to the issuance of a building permit for new construction on the property. (Ord. No. 5, § 6, 3-11-85; Ord. No. 261, § 4, 1-27-97) Sec. 19-47. Service availability charges. In addition to, and not in lieu of, all other charges imposed from time to time by the city for building permits, sewer connection permits, sewer usage rates, and sewer hook-up charges, the then prevailing Metropolitan Waste Control Commission service availability charge(SAC) shall be paid to the city at the time a building permit for new construction is issued, or at the time a sewer connection permit is issued for the connection of an existing building to the city sanitary sewer system. The amount of the service availability charge shall be established by the Metropolitan Waste Control Commission. (Ord. No 5, § 7.02, 3-11-85) Sec. 19-48. Persons authorized to make connections, etc.; bond. (a) Any work which in any way affects the city's sewer lines or connections thereto shall be _ performed only under the direct supervision of a master plumber licensed by the state. Supp. No. 9 1071 § 19-48 CHANHASSEN CITY CODE (b) In the event that the permitted work includes any direct contact with the city's sewer system or the alteration of a city street, the plumber shall file with the city a corporate surety bond approved by the city in the sum of two thousand dollars($2,000.00) conditioned that he will perform competently all work with due care and skill, and in accordance with state and city laws, ordinances, rules and regulations. The bond shall provide that the principal and surety shall indemnify and save harmless the city and the owner of the premises for which the work is to be performed against all damages, costs, expenses, and claims of every nature arising out of violation of state and city laws, ordinances, rules and regulations, lack of skill, or negligence on the part of the principal in connection with the performance of any work hereunder or the furnishing of materials therefore. Said bond shall remain in force for a period of one(1)year,except that on such expiration it shall remain in force as to all penalties, claims and demands that may have arisen thereunder prior to such expiration. (Ord. No. 5, § 2.01, 3-11-85) Sec. 1949. Sewer specifications. (a) Sanitary sewer mains, manhcles and service installation shall be as specified by the most recent edition of the state plumbing code. (b) A separate and independent building sewer shall be provided for every building except where a building stands at the rear of another on an interior lot and no building sewer can be constructed to the rear building through an adjoining street, alley, courtyard, or • Supp.No. 9 1072 r WATER, SEWERS AND SEWAGE DISPOSAL § 19-65 driveway. In such case,the building sewer from the front building may be extended to the rear _ building and the whole considered as the building sewer. Other exceptions may be allowed only by special permission granted by the city. (Ord. No. 5, §§ 3.01,2.02, 3-11-85) Sec. 19.50. Inspections and city supervision of work. (a) Inspections of all interior plumbing and exterior services,including connections to the municipal sewage disposal system, are required.The permit holder is responsible to arrange for such inspections which are performed between 8:00 a.m.and 4:00 p.m. on weekdays within — twenty-four(24)hours of notification. (b) All direct connections to and tappings of the actual city main line shall be supervised _ by the city. Depending on the availability of the inspector,trenches may have to remain open for some period of time and in some instances overnight.In such cases the permit holder shall be responsible to enclose the opening to ensure pedestrian and vehicular safety. (Ord. No. 5, § 2.03, 3-11-85) Sec. 19-51. User rates and charges. (a) A quarterly sewer usage unit rate shall be established by resolution of the city council as a part of the annual budgetary process. – (b) The city clerk shall prepare and mail to the owner, occupant or lessee of each con- sumer premises connected with the sanitary sewer system a statement for sewer usage services furnished thereto during the preceding quarter. The quarterly billings will be based on winter quarter water usage unless that consumption proves inaccurate, then actual quar- terly usage measurements shall be employed. Charges for individuals connected to sewer but not water shall be billed on an assumed usage rate. (c) The city clerk shall compute the amount due to the city for sewage charges and render a quarterly statement thereof. All amounts due as shown on the statement shall be payable at the municipal building on or before the twentieth day of the month in which the statement is presented. A penalty of ten(10)percent shall be added to all accounts that are not paid in full by the due date. This penalty shall be computed on the unpaid balance not paid by the appropriate due date at the time each quarterly statement is prepared and presented. (d) In the event any sewer usage charge is not paid within three(3)months after the time it is rendered, the council may recover said amount in an action brought in any court of competent jurisdiction, or in the alternative, may certify the amount due together with penalties to the county auditor to be collected with other real estate taxes levied against the premises served. (Ord. No. 5, § 4, 3-11-85) Secs. 19-52-19-65. Reserved. 1073 § 19-66 CHANHASSEN CITY CODE ARTICLE IV. INDIVIDUAL SANITARY SEWAGE TREATMENT SYSTEMS Sec. 19-66. Definitions. The following words and phrases, when used in this article, unless the context clearly indicates otherwise, shall have,the meanings ascribed to them in this section, in addition to those definitions contained in section 7080.0020 of Minnesota Rules chapter 7080. Abandoned means the permanent disconnection of a treatment system. Agency when used in the standards adopted herein means department or inspector where appropriate. Alternate system means a system that does not conform with this article. Department means the city's building department. Failing system means the discharge of effluent from a soil treatment system to the ground surface, abandoned wells, or bodies of surface water, or into any rock or soil formation the structure of which is not conducive to purification of water by filtration or into any well or into any excavation in the ground or where there is a demonstrated public health hazard. Inspector means the person employed or engaged by the department and assigned the responsibility for the administration and implementation of this article. Major repair means the act of physically replacing or adding to an individual sewage treatment system. Repair means the act or process of restoring or replacing a defective element of any individual sewage treatment system. Site evaluator means the individual who performs percolation tests and soil borings. Standard system means any individual sewage treatment system as defined in Minnesota Rules chapter 7080. Water monitoring device means equipment which measures the amount of liquids which • enter the sewage treatment system. (Ord. No. 10-B, § 1.03, 1-26-87) Sec. 19-67. Scope. This article shall apply to the design, location, installation, use and maintenance of individual sewage treatment systems constructed, altered,extended or repaired in the city. (Ord. No. 10.B, § 1.02, 1-26-87) Sec. 19-68. Compliance. No person shall design, locate, install, construct, alter,extend, repair, use, maintain, or conduct site evaluations including soil borings, soil evaluations and percolation tests for any individual sewage treatment system,except in full compliance with this article and standards adopted in this article. (Ord. No. 10-B, § 1.04, 1-26-87) ! , 1074 WATER, SEWERS AND SEWAGE DISPOSAL § 19-70 Sec. 19-69. Remedies for violation. (a) In the event of a violation or a threat of violation of this article,the city may institute appropriate actions or proceedings, including requesting injunctive relief to prevent,restrain, correct or abate such violations or threatened violations. (b) If a person fails to comply with the provisions of this article, the city may recover cost or damages incurred in a civil action in any court of competent jurisdiction. (c) If a person fails to comply with the provisions of this article, the city may proceed under Minnesota Statutes section 429.101 to provide for the elimination of the noncompliance and recover its costs as a special assessment levied against the site on which the non- compliance occurred. (Ord. No. 10-B, §§ 9.03-9.05, 1-26-87) Sec. 19-70. Appeals. (a) Any person wishing to appeal an inspector or departmental decision made under this article may request an administrative hearing. The request shall be in writing stating the _ grounds for appeal and served personally or by registered or certified mail on the inspector or depar:.r:ent by 4:00 p.m. the fifth city working day following service of the inspector or departmental decision in question. After receipt of an appeal request,the department shall set a time and place for the hearing.The department shall reply as soon as possible,not to exceed five (5) city working days of the receipt of the request for hearing and identify a hearing time _ within twenty (20) calendar days of the receipt of the request for hearing. If the department fails to grant an administrative hearing or if after the hearing the person wishes to appeal the decision reached as a result of the administrative hearing they may request a formal hearing. Co) Whenever a formal hearing is requested in regard to an application, renewal.suspen- sion- or revocation of a licensee or permit or as provided in subsection(a), the procedure shall be governed by the following: (1) The city council may conduct public hearings pursuant to this subsection. By resolu- tion,the city council may appoint an individual learned in the law to be known as the hearing officer to assist the city council in the administration of the hearing or to conduct the hearing on behalf of the city council. If the individual conducts the hearing on behalf of the city council, he shall submit to the city council in writing findings of fact, conclusions, and recommendations, and the city council may adopt, modify or reject the report of the hearing officer. (2) Upon receipt of request for a hearing, the city council shall set a hearing date which shall be set at a time convenient for the council, but in no case earlier than ten (10) days no later than thirty (30)days exclusive of the day of service,after the date of the receipt of request. (3) The city council shall notify the applicant or licensee in writing as to its decision within ninety(90)days after the close of the hearing. (4) If the applicant or licensee fails to appear at the hearing,he shall forfeit any right to a formal hearing before the hearing officer. 1075 § 19-70 CHANHASSEN CITY CODE • Any applicant or licensee aggrieved by a decision of the city council shall have the right to \ appeal to the district court on questions of law and fact. (Ord. No. 10-B, §§ 8.06, 8.07, 1-26-87) Sec. 19-71. Variances. In any case where, upon written application by an applicant or the licensee, it appears that by reason of exceptional circumstances the strict enforcement of any provisions of this article would cause undue hardship, or that strict conformity with this article would be unreasonable, impractical, or not feasible under the circumstances, and in order to promote the effective and reasonable application and enforcement of the provisions of this article, the city council may grant a variance from the provisions of this article upon such conditions as it may prescribe for individual sewage treatment system management consistent with the general purpose and intent of this article, provided that: (1) The condition causing the hardship is unique to that property; and (2) The granting of the variance will not be contrary to the public interest or be damag- ing to rights or property of others. (Ord. No. 10-B, § 10, 1-26-87) Sec. 19-72. Enforcement officer. (a) The inspector responsible for the administration and enforcement of this article shall be certified as an individual septic treatment system inspector by the state pollution control agency. (b) The inspector shall be responsible for the administration and enforcement of this article. The inspector's duties shall include but not be limited to the following: (1) Receive and review license or license renewal applications, permits or permit re- newal applications pursuant to this article, and issue licenses and permits in confor- - . . , mance with this article. (2) Inspect individual sewage treatment systems and septage disposal sites located within the city, issue certificates of compliance and investigate complaints of violations of this article. (3) Recommend that legal proceedings be initiated by the city attorney to compel corn- - pliance with the provisions of this article. (4) Cooperate with the public and other governmental agencies in the furtherance of this article. (5) Issue orders: a. To suspend or revoke permits issued under this article; b. To stop actions which constitute a violation of this article; c. To correct systems determined by the inspector to be in a state of failure or determined to be otherwise in violation of this article;or 1076 WATER, SEWERS AND SEWAGE DISPOSAL § 19-76 d. To cease and desist from the use of any system which is operating in a manner creating hazard to public health, safety, or welfare. _ (Ord. No. 10-B, §§ 8.01,8.02, 1-26.87) Sec. 19-73. Inspections. _ (a) The inspection andlor evaluation of individual sewage treatment systems will be made by the inspector to determine compliance with the provisions of this article. The permittee shall be provided with written notice of any deficiencies, recommendations for the corrections, and a date by which the correction shall be accomplished. All systems users shall allow the inspector or his authorized agent access for the purposes of making such inspections _ as may be necessary to determine compliance with the requirements of this article and shall allow the inspector to make any and all appropriate tests to determine compliance with this article. Failure of the city to inspect shall not relieve or lessen the responsibility or liability of _ any person owning, operating, controlling or installing any individual sewage treatment system. (b) It shall be the responsibility of the permittee under this article to notify the inspector that the job is ready for inspection at least four(4)city working hours prior to inspection time requested. It shall be the responsibility of the permittee to provide the inspector with free access to the property at reasonable times for the purpose of making such inspections. The perrnittee and the licensee shall be responsible for the correction or elimination of all defects, and no system shall be placed or replaced in service until all defects have been corrected or eliminated and a certificate of compliance has been issued. No part of the system shall be covered until it has been inspected andror approved by the inspector. (Ord. No. 10-B, §§ 3.06, 8.03. 1-26-87) Sec. 19-74. Violation of conditions imposed on licenses, permits or variances. Violation of any condition imposed by the city on a license, permit or variance issued under this article shall be a misdemeanor. (Ord. No. 10-B, § 1.05, 1-26-87) Sec. 19-75. Submission of false information. Omission of any information or submission of false information pursuant to this article may constitute grounds for the denial of the license, permit or variance applied for under this article, or the suspension or revocation of an issued license, permit or variance. (Ord. No. 10•B, § L06, 1-26-87) Sec. 19-76. Licensing and certification of contractors, maintenance men,etc. (a) No person shall: (1) Design; (2) Install, construct, alter, extend or repair; 1077 § 19-76 CHANHASSEN CITY CODE (3) Maintain or pump; (4) Conduct site evaluations, including soil borings, soil evaluations and percolation tests for individual sewage treatment systems; without meeting the primary licensing qualifications or first obtaining a license to carry on such operation from the city. The license shall be issued by the inspector, shall be renewable and may be denied, revoked or suspended for cause. No person other than a duly licensed ins-taller shall repair a system. (b) Application for a license or license renewal shall be on a form furnished by the department. The applicant shall provide such information as may be required by the form. (c) All license and license renewal applications must be accompanied by the appropriate fee. The amount of each license or license renewal fee, late fees, or such other fees as may be needed for the administration of this article, plus the method and time of payment thereof shall be determined by resolution of the city council. (d) A license shall not be transferable. (e) Before any license can be issued, an applicant for the license shall: (1) Provide certificate of insurance and/or performance bond as established by resolution of the city council. The insurance and/or bond shall be written by an insurer or bonder licensed to do business in the state; (2) Provide an individual sewage treatment systems certification issued by the state pollution control agency and satisfactorily maintain certification as required; (3) Pay the required license fee. (f, If an application for license or license renewal is denied, notice of the denial shall be served on the applicant by mail. The notice shall state the reasons for the denial and inform the applicant of his right to request a hearing as provided in section 19-70. (g) Any such license may be revoked by the department for violation of any provision of this article. Revocation shall not occur earlier than ten(10)calendar days,exclusive of the day of service, after written notice of revocation has been served on the licensee. Such written notice shall contain the effective date of revocation, the nature of the violation or violations constituting the basis for the revocation, the facts which support the conclusion that a violation or violations have occurred, and a statement that if the licensee desires a hearing, he must within ten (10) calendar days, exclusive of the day of service, file a written request with the inspector. If the licensee fails to request a hearing, he shall forfeit any opportunity for a hearing. If a hearing is requested,the revocation shall be stayed pending the outcome of the hearing. (h) Any license may be suspended for not longer than sixty (60) days by the department for violation of any provision of this article. Suspension shall not occur earlier than ten (10) calendar days exclusive of the day of service, after written notice of suspension has been served on the licensee. Such written notice shall contain the effective date of suspension,the nature of the violation or violations constituting the basis for the suspension,the facts which 1078 WATER, SEWERS AND SEWAGE DISPOSAL § 19-78 support the conclusion that a violation or violations have occurred and a statement that if the _ licensee desires a hearing that he must within ten(10) calendar days, exclusive of the day of service, file a written request with the inspector. If the licensee fails to request a hearing, he shall forfeit any opportunity to a hearing. If a hearing is requested, the suspension shall be stayed pending the outcome of the hearing. (Ord. No. 10-B, §§ 7.01-7.06, 8.04, 8.05, 1-26-87) Sec. 19-77. Responsibilities of licensees. (a) An installer licensed under this article shall comply with provisions of this article,the construction permit and the installer's license. The installer shall make three (3) as-built plans for each system construction, alteration, extension,or repair;one(1)shall be kept by the installer for his record, one (1)copy shall be filed with the inspector and one(1) copy shall be given to the permittee. The installer shall file the inspector's copy with the inspector within — ten (10) days of the completion of the system's construction, alteration, extension, or repair. (b) Pumpers licensed under this article shall have equipment capable of agitating septage sludge and thoroughly remove sludge and scum from the septic tanks or holding tanks. All — septage removed from septic tanks or holding ranks shall be removed from the site in sealed containers and disposed of in accordance with section 19-82. The pumper shall make reports monthly to the city reporting on the total number of systems pumped, approximate volume — pumped and location of septage disposal. (c) All percolation tests, soil and/or site evaluation shall be done in compliance with this article. All reports submitted to the city shall be submitted on forms approved by the inspector. (d) All individual sewage treatment system designs shall be in compliance with this article. Designs submitted to the city shall be of sufficient detail and to scale (preferably of a. _ scale of one (1) inch equals thirty (30) feet) so as to allow adequate review for compliance by the inspector. (Ord. No. 10-B, §§ 7.07-7.10, 1-26-87) Sec. 19.78. Technical requirements—Adopted by reference. (a) The rules relating to or known as, Individual Sewage Treatment Systems and Stan- dards and Appendix A are adopted by reference and made a part of this article as if set down fully herein. (b) The above adopted rules, MCAR chapter 7080 are hereby amended as follows: (1) The table in 7080.0130, subpart 3 is amended to read as follows: Liquid Capacity of Septic Tank Tank Liquid Number of Bedrooms Capacity—Gallons 2 or less 1,125 3 or 4 1,500 5 or 6 2,250 7, 8 or 9 3,000 Supp. No. 5 1079 § 19-78 CHANHASSEN CITY CODE Two (2) septic tanks or a compartmented tank are required. (2) Section 7080.0200 is deleted in its entirety. (Ord. No. 10-B, §§ 2.01, 2.02, 1.26-87; Ord. No. 168; §10, 4-27-92) Sec. 19-79. Same—Additional standards. (a) In addition to the standards adopted by reference in this article, the standards in this section shall also apply. (b) Reserved. (c) The design, construction, and location of component parts of any alternative sewage treatment and disposal system shall comply, insofar as practical, with the design, construc- tion, and location requirements for the equivalent components of a standard individual sewage treatment system as set forth in this article. (d) Any person proposing to utilize an alternative sewage treatment system may be required to permit the department to install monitoring devices at the time of initial construc- tion, or upon any alteration, repair, or extension of the system. The cost of installing the monitoring device and any subsequent laboratory analysis shall be borne by the city. The system owner shall permit reasonable access by the department for the purpose of monitoring the system. (e) It shall be the responsibility of any person utilizing an alternative sewage treatment system to report to the department all discharges from a malfunctioning alternative sewage treatment system as soon as possible upon knowledge of such discharge, and further abate such discharge within twenty-four(24) hours as required by section 19-83. (f) All beds shall be sized at one and and-half(11)times the soil treatment area required in MCAR 7080.0170, subpart 2(4)Table III. (g) Where a dosing chamber is used the dosing chamber shall have a liquid tank capacity of one thousand two hundred(1,200) gallons so that in case of dosing device failure there will be storage capacity for three (3) days of use and the dosing chamber shall be equipped with a warning device to indicate dosing device failure. (h) Where conditions prevent the construction, replacement, alteration and/or repair of an individual sewage treatment system on an existing developed parcel of real property, the department may reduce property line and building setbacks and system sizing requirements provided the reduction does not endanger or unreasonably infringe on adjacent properties and with the concurrence of the affected properties. (i) Not more than one(1) dwelling, commercial,business,institutional,or industrial unit shall be connected to an existing individual sewage system unless such multiple connection has been approved by permit. Supp.No. 5 1080 WATER, SEWERS AND SEWAGE DISPOSAL, § 19-80 — (j) All individual sewage treatment systems shall be designed to receive all sewage from the dwelling, building, or other establishments served. — (k) No person shall allow footing or roof drainage to enter any part of any individual sewage treatment system. — (1) No person shall install any cesspool. (m) Where the construction of additional bedrooms, the installation of mechanical equip- _ meet or other factors likely to affect the operation of an individual sewage treatment system can be reasonably anticipated, the installation of a system sized for such anticipated need is required. — (n) A water monitoring device is required for every new installation and for every new repair or reconstruction of an existing installation of an on-site sewage treatment system. (o)—(r) Reserved. (s) Individual sewage treatment sites,both the primary and the alternate,must be fenced cif to prevent alteration of the soil. Protective fencing must be installed before any site — improvements begin and must remain in place until permanent vegetation has been estab- lished. If soils at the site(s) are altered, new site(s) must be identified in a revised permit application accompanied with the required soil data and fees. — (Ord. No. 10-B, § 2.03, 1-26-87; Ord. No. 168, §§ 11, 12, 4-27-92) Sec. 19-80. Permit to install, repair, maintain, etc. (a) No person shall install, construct, alter, extend, or repair an individual sewage treatment system in the city without first obtaining a building permit therefor from the — inspector. Such permits shall be valid for a period of three (3) months from the date of issuance. All such installations, construction, alterations, extensions, and repairs shall be executed in accordance with the standards set forth in sections 19-78 and 19-79. Any system which is determined by the inspector to be a state of failure shall be repaired or replaced in accordance with this article. (b) Application for permits shall be made in writing on forms furnished by the depart- ment and shall be signed by the applicant and the licensed installer.The information required by the form shall be given. (c) All permit and permit renewal applications must be accompanied by the appropriate fee. The amount of each permit, permit renewal fee, late fees or other such fees as may be needed for the administration of this article, plus the method and time of payment thereof shall be determined by resolution of the city council. (d) No building permit, where required, will be issued until the soil evaluation report is -- approved. No occupancy permit shall be issued until the system has had final inspection approval. Supp.No. 5 1081 § 19-80 CHANHASSEN CITY CODE (e) If an application for a permit or permit renewal is denied, notice of denial shall be served on the applicant by mail. The notice shall state the reasons for denial and inform the applicant of his right to request a hearing as provided in section 19-70. (Ord. No. 10-B, §§ 3.01-3.05, 1-26-87) Sec. 19-81. Discharges. ' No person shall allow effluent, or seepage from any soil treatment system or any in- dividual sewage treatment system to be discharged to the ground surface, abandoned wells, or bodies of surface water, or into any rock or soil formation the structure of which is not conducive to purification of water by filtration, or into any well, or other excavation in the ground. (Ord. No. 10-B, § 1.04, 1-26-87) Sec. 19.82. Pumping and disposal of septage. (a) The owner of any individual sewage treatment system shall properly clean the septic tank at least once every two(2)years of sooner if necessary in order to prevent the sludge from reaching any point closer than twelve (12) inches from the bottom of the outlet baffle or the scum from reaching a point closer than three (3)inches above the bottom of the outlet baffle. The owner of an individual sewage treatment system must submit documentation as provided by the city every two (2) years verifying that the treatment system has been cleaned. The owner of an individual sewage treatment system may request to delay cleaning of the septic tank if a certified individual measures the accumulated sludge in the septic tank to determine whether or not the cleaning frequency of every two (2)years is necessary. A certified report must be submitted to the building inspector for approval. (b) All effluent removed shall be removed from the site in sealed containers and shall be disposed of in a location and manner approved by the inspector and/or state pollution control agency. If the septage is to be disposed of into any municipally-controlled sewage facility or into a Metropolitan Waste Control Commission facility it shall be disposed of in a location and manner approved by the governmental authority. (c) Documentation verifying the cleaning of a system must be accompanied by an admin- istrative fee in the amount established by resolution. (d) Septic sludge shall be removed through the septic tank manhole, not through inspec- t tion pipes. (Ord. No. 10-B, §§ 5.01-5.03, 1-26-87; Ord. No. 168, §§ 13, 14, 4-27-92) Sec. 19.83. Failing systems. (a) The inspector may allow an existing system which is in a state of failure to be restored to its original configuration, rather than being fully reconstructed in accordance with the standards set forth in this article, if in the opinion of the inspector such restoration will abate the system's failure and that such restoration will reasonably assure satisfactory performance of the system. Supp. No. 5 1082 WATER, SEWERS AND SEWAGE DISPOSAL § 19-96 (b) It is the responsibility of the owner of a failing system to notify the city immediately and abate such discharge no later than twenty-four(24)hours. Should the owner not notify the city and a citizen complaint is received, the city shall require the following: (1) The owner must pump the septic tank within twenty-four(24) hours after receiving notification of a failing system from the city inspector. The owner must continue to have the tank pumped, as necessary, until the system has been repaired. (2) The owner of a failing system shall respond to notification within seventy-two (72) hours to explain to the city inspector how the problem will be resolved. (3) The owner of a failing system shall apply for a permit within fifteen (15) days of notification in accordance with this article as per Ordinance 10-B. (4) The owner of a failing system shall have sixty (60) days to repair or replace the failing system. The sixty-day limit may be extended if a schedule of completion is a approved by the city inspector. If the owner of a failing system cannot meet the schedule the city council must approve an extension. (5) If the owner fails to comply with paragraphs(1)—(4) above, the city will contract for the repair or replacement of the failing system and a charge will be assessed against the property pursuant to section 19-69. _ (Ord. No. 10-B, §§ 4,9.01, 1-26-87) Sec. 19-84. Abandonment and connections to community sewer services. — (a) When any system is abandoned all septic tanks, cesspools, and Ieaching pits shall be pumped to remove all liquid, sludge and scum. The covers to all such septic tanks, cesspools _ and leaching pits shall be either collapsed or removed and tanks or cavities shall be filled with clean earth. (b) When municipal sewer services or community sewer services become available, all existing septic systems are abandoned and connection to the sewer completed within one (1) year of availability. — (Ord. No. 10-B, § 6, 1.26-87) Secs. 19-85-19-95. Reserved. ARTICLE V. STORM SEWERS Sec. 19-96. Definition. In this article"storm sewer connection" means the installation of a hookup or connection from the municipal storm sewer line in a street or easement to the structure to be served thereby or to any inlet or catch basin on the property drained by the storm sewer. (Ord. No. 53, § 2.03, 6-18.73) Supp. No. 5 1083 § 19-97 CHANHASSEN CITY CODE Sec. 19-97. Connection permit. No person shall connect any premises to storm sewer system without first obtaining a permit therefor from the city. Application for a permit shall be made on forms furnished by the city, and shall state the information required by the form.By making an application, each applicant agrees to be bound by all applicable ordinances.Permits shall be valid for a period of six(6) months from the date of issuance. (Ord. No. 53, § 3, 6-18-73) Sec. 19-98. Contractors—License. (a) No person shall make a storm sewer connection in the city without a license issued by the city. Application for a license shall be made on a form furnished by the city.The applicant shall furnish the information required by the form. Each application shall be accompanied by the payment of a fee in the amount established by resolution. Supp.No. 5 1084 WATER, SEWERS AND SEWAGE DISPOSAL- § 19-126 r- (b) Any person not licensed as a plumber by the state shall be required to take an examination to determine his skill and knowledge in the matter of the making of storm sewer — connections. The examination shall be given by the city. (c) Licenses issued hereunder shall be renewable on or before August 1 of each year, and may be revoked or refused by the city council for cause. Any installation, construction, alteration or repair by a licensee in violation of the provisions of any applicable ordinance, or refusal on the part of a licensee to correct defective work performed by such licensee shall be cause for revocation of or refusal to renew a license. (d) Before any license is revoked or its renewal refused, the licensee shall be given a hearing to show cause why such license should not be revoked or refused. Notice of the time, — place and purpose of such hearing shall be in writing. (Ord. No. 53, §§ 1, 4, 6-18-73) Sec. 19-99. Same—Bond. Each licensee under this article shall file with the city a corporate surety bond in an amount not less than five thousand dollars($5,000.00) to insure proper performance of work in connection with or storm sewer connections, to save and hold the city harmless in the performance of his work, to insure completion of sanitary sewer, water, and storm sewer — connections in the event of failure or defect caused by the licensee, and to insure compliance with all pertinent ordinances. (Ord. No. 53, § 5, 6-18-73) — Sec. 19.100. Same—Insurance. Each licensee under this article shall secure and maintain,during the term of his license, public liability insurance of at least two hundred thousand dollars ($200,000.00) for bodily injury to, or death of, any one (1) person and five hundred thousand dollars ($500,000.00) for -- bodily injury, or death of, two t2) or more persons in any one (1) accident; and at least one •• hundred thousand dollars (8100,00.00) for property damage. The city shall be an additional named insured under the policy. (Ord. No. 53, § 6, 6-18-73) Secs. 19-101-19-125. Reserved. ARTICLE VI. "SECTION 201" SEWER SYSTEMS — Sec. 19-126. Definitions. The following words, terms and phrases. when used in this article,shall have the mean- ings ascribed to them in this section, except where the context clearly indicates a different meaning: Authority means the city or its agent or designee. 1085 § 19-126 CHANHASSEN CITY CODE Biochemical Oxygen Demand (BODS 1 shall mean the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty(20)degrees centigrade, expressed in milligrams per liter, as prescribed in Standard Methods, current edition. Building drain means that part of the horizontal piping of a building drainage system which receives the discharge from all other soil, waste and drainage pipes inside the walls of any building and conveys the same to the building sewer. Building sewer means the extension from the building drain to the public sewer. Combined sewer means a sewer receiving both surface runoff and sewage. Community sewer system means an alternative type sanitary sewer system which utilizes one (1) septic tank per each dwelling unit or commercial unit, and small diameter sewer pipe to convey septic tank effluent to a central location for treatment through soil absorption_ Garbage means solid wastes from the preparation, cooking and dispensing of food and from the handling, storage and sale of produce. Individual on-site sewer system means an alternative type sewer system for which the septic tank and drainfield are located entirely on the property being served. - Normal domestic strength waste means water carried domestic waste, exclusive of footing and roof drainage. Domestic waste includes, but is not limited to liquid waste produced by bathing, laundry,culinary operations and liquid wastes from toilets and floor drain.Domestic waste contains approximately two hundred seventy(270)mg/1 BOD5 and approximately three hundred(300)mg/1 suspended solids,consistent with that emanating from a typical household. NPDES permit means the system for issuing, conditioning and denying permits for the discharge of pollutants from point sources into the navigable waters, the contiguous zone, and the oceans by the Environmental Protection Agency and pursuant to the Federal Water Pollution Control Act of 1972, Sections 402 and 405. Operation and maintenance means activities required to provide for the dependable and economical functioning of the treatment system, throughout the useful life of the treatment works, and at the level of performance for which the treatment works were constructed. Operation and maintenance includes replacement. pH means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution. Public sewer means a sewer in which all owners of abutting properties have equal rights or is controlled by public authority or both. Where an individual septic tank is part of the system, that septic tank and the pipe leading out of the tank shall be considered part of the public sewer. Replacement means the obtaining and installing of equipment, accessories or appurte- nances which are necessary during the useful life of the wastewater treatment facilities to maintain the capacity and performance for which such facilities were designed and construct- ed. The term operation and maintenance includes replacement. 1086 WATER, SEWERS AND SEWAGE DISPOSAL § 19-129 Sanitary sewer means a sewer which carries sewage and to which storm, surface and ground waters are not intentionally admitted. Sewage means any water-carried domestic waste,exclusive of footing and roof drainage of any residence, industry or commercial establishment, whether treated or untreated, and includes liquid wastes produced by bathing, laundry and culinary operations, and from toilets and floor drains. Raw sewage is sewage which has not been subjected to any treatment process. Sewage treatment works means any arrangement of devices and structures used for treating sewage. Sewer means a pipe or conduit for carrying sewage. State disposal system(SDS)permit means any permit including any terms,conditions and requirements thereof issued by the MPCA pursuant to Minnesota Statutes section 115.07 for — a disposal system as defined by Minnesota Statutes section 115.01, subdivision 8. Storm sewer or storm drain means a sewer which carries storm and surface waters and drainage, but excluding sewage and polluted industrial wastes. Suspended solid means solids that either float on the surface of or are in suspension in waste and which are removable by laboratory filtration; the quantity being determined by a — test as described in Standard Methods for the Examination of Water and Wastewater, latest edition. Unit means one (1)complete single-family household. (Ord. No. 5-A, § 1.02, 1-13-86) Sec. 19-127. Compliance. Community and individual sewer disposal systems, constructed under Section 201 of P.L. 97.117, Grant C271437,comply with Federal Regulations 40 CFR 35 for the maintenance, use and charges for such systems. Such sewer systems must also comply with all applicable provisions of Articles III and IV of this chapter. (Ord. No. 5-A, § 1, 1-13-86) Sec. 19-128. Unlawful surface discharge. It shall be unlawful to discharge to any natural outlet within the city or any area under the jurisdiction of the city any sewage or other pollutant waters, except where suitable treatment has been provided in accordance with subsequent provisions of this article and the city's NPDES/SDS permit. (Ord. No. 5-A, § 2.01(a), 1-13-86) Sec. 19-129. Unlawful connection to public sewers. It shall be unlawful for•any person to connect a building sewer to any public sewer without first obtaining a permit from the city.The city shall permit new connections and flow increases only if there is additional available capacity in all components of the particular 1087 § 19-129 CHANHASSEN CITY CODE public sewage treatment system being considered. No new connections or flow increases will be permitted two (2) years following start up of community sewage treatment systems that employ a drainfield or other soil-absorption system. (Ord. No. 5-A, § 2.01(b), 1-13-86) Sec. 19-130. Regulations for use of public sewer. (a) No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff,subsurface drainage,cooling water to any community sewer system. Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designed as storm sewers, or to a natural outlet approved by the city. Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described waters or wastes to any "201" Sewer: (1) Any liquid or vapor having a temperature higher than one hundred fifty (150) degrees. (2) Any water or waste which may contain more than one hundred (100) parts per million by weight,of fat, oil, or grease. (3) Any gasoline,benzene, naphtha,fuel oil, or other flammable or explosive liquid,solid or gas. (4) Any garbage that has not been properly shredded. (5) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, manure, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interferences with the proper operation of the community disposal system. (6) Any waters or wastes having a pH lower than 5.5 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structure, equip- ment and personnel of the community disposal system. (7) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals or create any hazard in the receiving waters of the community disposal system. A toxic pollutant shall include but not be limited to any pollutant identified pursuant to Section 307(a)of the Act. (8) Any noxious or malodorous gas or substance capable of creating a public nuisance. (9) Water or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, including wastes which may affect and prohibit the permeability of soils such as dairy products or blood. (10) Wastes which, due to characteristics, or strength, result in the violation of the city's NPDES or SDS permit. 1088 WATER, SEWERS AND SEWAGE DISPOSAL § 19-130 (b) If any water or wastes are discharged, or are proposed to be discharged directly or indirectly to the public sewers, which water or wastes do not meet the standards set out in or — promulgated under this subsection, or which in the judgment of the city may have a deleteri- ous effect upon the treatment facilities,processes,equipment,and soil,vegetation and groundwa- ter or which otherwise create a hazard to life, or constitute a public nuisance,the city take all or any of the following steps: (1) Refuse to accept the discharges. (2) Require control over the quantities and rates of discharge. (3) Require pretreatment to an acceptable condition for the discharge to the public sewers. (4) Require payment to cover the added cost of handling or treating the wastes. (c) The design and installation of plant or equipment for pretreatment or equalization of flows shall be subject to the review and approval of the city,and subject to the requirements of 40 CFR 403, entitled "Pretreatment Standards", and the state pollution control agency. (d) Grease, oil and sand interceptors shall be provided when they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any inflammable wastes, sand, and other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All such interceptors shall be of a type and capacity approved by the city engineer, and shall be located as to be readily and easily _ accessible for cleaning and inspection. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight, and equipped with easily removable _ covers which when bolted in place shall be gastight and watertight. Where installed, all grease, oil and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times. (e) The admission into public sewers of any waters or wastes having any of the following characteristics shall be subject to the review and approval of the city council. (1) A five-day biochemical oxygen demand greater than three hundred (300) parts per million by weight; or (2) Containing more than three hundred fifty (350) parts per million by weight of suspended solids; or (3) Containing any quantity of substance having the characteristics described above; or — (4) Having an average daily flow greater that two(2)percent of the average daily sewage flow of the city. (f) The owner shall provide at his expense, such preliminary treatment as may be neces- sary to: • (1) Reduce the biochemical oxygen demand to three hundred(300) parts per million and the suspended solids to three hundred fifty(350) parts per million by weight;or 1089 § 19-130 CHANHASSEN CITY CODE ' — (2) Reduce objectionable characteristics of constituents to within the maximum Iimits provided for above;or — (3) Control the quantities and rates of discharges of such waters or wastes. (g) Plans, specifications, and any other pertinent information relating to proposed pre- _ liminary treatment facilities shall be submitted for the approval of the city council and no consuction of such facilities shall be commenced until said approvals are obtained in writing. (h) Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense. (i) All measurements, tests, and analysis of the characteristics of water and wastes as referenced shall be determined in accordance with methods employed by the state department of health. — (Ord. No. 5-A, § 2.02, 1-13-86) Sec. 19-131. Protection from damage. No unauthorized person shall maliciously, willfully or negligently break, damage, de- stroy, uncover, deface, or tamper with any structure, appurtenance, or equipment which is a part of the city community sewer system. (Ord. No. 5-A, § 2.03, 1-13-86) Sec. 19-132. Service responsibilities for community systems. T'ne city shall be responsible to service, maintain and repair 201 program community disposal systems including but not limited to the following: (1) Annual inspection of sludge and scum in septic tank pumping chamber and warning device. (2) Pumping of septic tank when sludge and scum levels indicate it is necessary or every three (3)years, whichever is sooner. (3) Routine annual maintenance of pump and pumping chamber, sewer line and treat- ment area. (4) Replacement and/or repair or any malfunctioning parts. (5) Cleaning of sewer lines. (Ord. No. 5-A, § 2.04, 1-13-86) Sec. 19-133. Service responsibilities for individual on-site systems. (a) In instances where the 201 program sewer system is completely contained on the individual's property, the on-site system shall become the property and responsibility of the property owner. The owner shall then be responsible for the annual system inspection, any system repairs and the pumping of the septic tank. 1090 WATER, SEWERS AND SEWAGE DISPOSAL § 19-141 fbi Should the owner not have the tank pumped when the sludge level is nearing twelve (12) inches from the bottom of the outlet baffle, or the scum is nearing three (3) inches above the bottom of the outlet baffle, or once every three (3) years, the city shall contract for the _ work and bill the property owner. Additionally, should system repairs be required, but not completed in a timely fashion, the city shall contract for the repairs and bill the property owner. (Ord. No. 5-A, § 2.05, 1.13.86) Sec. 19-134. Inspection. The authority, its agent and a representative of the United States Environmental Protec- tion Agency bearing proper credentials and identification shall be permitted to enter upon all property for the purpose of inspection, observation, measurement, sampling, and testing. (Ord. No. 5-A, § 3.01, 1-13-86) Sec. 19-135. System charges. The owner of every property shall pay to the authority a service charge to cover the cost of administration of this article. The service charge shall be established by resolution of the authority and may be revised from time to time to reflect the cost of providing administrative services. (Ord. No. 5-A, § 3.02, 1-13-86) Secs. 19-136-19-139. Reserved. ARTICLE VII. SURFACE WATER MANAGEMENT Sec. 19-140. Surface water management utility established. Surface water management shall be operated as a public utility pursuant to Minnesota Statute § 444.075. .(Ord. No. 132, § 1, 9-24-90) Sec. 19.141. Definitions. The following words,terms, and phrases,when used in this article,shall have the meaning ascribed to them in this section,except where the context clearly indicates a different meaning: Surface water management budget is the annual budget approved by the city council for surface water management including planning, monitoring, capital expenditures, personnel, and equipment. Surface water management fee means the quarterly charge for each parcel of nonexempt property in the city for the management of surface water. Supp.No.4 1091 § 19-141 CHANHASSEN CITY CODE Utility factor means the ratio of runoff volume, in inches, for a particular land use, to the runoff volume, in inches for a one-third-acre residential lot, assuming a two-inch rainfall and soil conservation service (SCS) "type B" soil conditions. (Ord. No. 132, § 1, 9-24-90) Sec. 19-142. Surface water management fees. (a) The utility factors for various land uses are as follows: Classification Land Use Utility Factor — 1 Single-family and rural residen- 1.00 tial 2 Agricultural 1.00 3 Undeveloped 1.00 4 Medium density residential 2.24 5 High density residential,indus- 3.34 trial, office, institutions, (churches, schools, government buildings, hospitals) 6 Business/Commercial 4.28 7 Parks,cemeteries, golf courses, 0.45 arboretum 8 Parking lots as a principal use 6.14 (b) The surface water management fee for single-family residential property shall be calculated as follows: (1) Percentage of runoff in the city attributable to single-family residential property; (2) Multiplied by an amount equal to twenty-five (25) percent of the surface water man- agement budget; (3) Divided by the estimated total acreage of single-family residential property in the city; and (4) Divided by three (3). (c) The surface water management fee for each tax parcel classified 1, 2, and 3 is the single-family residential fee. The fee for classifications 4 through 8 shall be calculated as -follows:Fee for a single-family residential tax parcel multiplied by the utility factor multiplied by the acreage of the parcel. (Ord. No. 132, § 1, 9-24-90; Ord. No. 147, § 1, 5-20-91) Sec. 19-143. Credits. The city council may adopt policies for adjustment of the surface water management fees. Information to justify a fee adjustment must be supplied by the property owner. Adjustment of fees shall not be retroactive. (Ord. No. 132, § 1, 9-24-90) Supp.No.4 1092 - WATER, SEWERS AND SEWAGE DISPOSAL § 19-148 Sec. 19-144. Exemptions. The following land uses are exempt from the surface water management fee: (1) Public right-of-way. (2) Lakes. (Ord. No. 132, § 1, 9-24-90) — Sec. 19-145. Payment of fee. Surface water management fees shall be invoiced quarterly.The amount due as shown on the invoice shall be payable on or before the twentieth day of the month in which the invoice is issued. A penalty of ten (10) percent per quarter shall be added to all accounts that are not paid in full by the due date. The penalty shall be computed on the unpaid balance not paid by the due date at the time each quarterly statement is prepared. Any prepayment or overpay- ment of charges shall be retained by the city and applied against subsequent fees. _ (Ord. No. 132, § 1, 9-24-90) Sec. 19.146. Appeal of fee. If a property owner or person responsible for paying the surface water management fee believes that a particular fee is incorrect, such person may file a written appeal with the city clerk. Appeals will be heard by the city council. No adjustment will be made to the utility factor for property classifications 1, 2, and 3. (Ord. No. 132, § 1, 9-24-90) Sec. 19.147. Certification of delinquent fees. If a surface water management fee is not paid within three (3) months after a billing is issued, the city council may certify the amount due, together with penalties, to the county auditor to be collected with other real estate taxes on the parcel. (Ord. No. 132, § 1, 9-24-90) Sec. 19.148. Surface water management fund. A separate fund shall be maintained for surface water management fees and expendi- tures. (Ord. No. 132, § 1, 9-24-90) Supp.No. (The next page is 11411 1093 •-•• . , Christmo ,_ --7:::-..74itrit7.;.--- ow 4!1;,‘.,NErarg.1:4,-;,Ii...811 ir”1.4rAtifsoLlilnimpws:se.fa ill-orr-t 2:,..1FaITZliZtrAja.,. Loke itriNVOI11115C4.,-..-;•(:.t.7..t Aiif. ttIVA*-4:•.:: ',41•••" 11;:l:f.110 ••••r-mow=1. 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IL 1,e4ro_fir 'p — Future Water&lain I _1 High Pressure Zone lilktal id gi NAVIN. • Existing Pressure RectuciNg Station [ I Lower BSA!Presikre Zone %It-1,ti7:41:*.-WAllgAilte411111,4 Rem",Pressure Reducing Station I 1 Intermed ate Stull Pressure Zone 14---.410":frftirti•dilrigaZiOnlillijj .. Oi'441IiiitiN0a 401/1111V"IA°- I I Lake Riley Pressure Zone • Existing Weil 111;0014. 11000 ',. • —Existing Elevated Storage Reservoir dalliall . NOM 36 Ric. Lok • Future Oersted Storage Reservoir WI I LBO Wu rE FR 'S•1,. .• Point Designation 04 4A111 - PRE SURE J'A, N / ti Bones tree w ....o... I ..,,e Anderiik it 101 Associates --- aripmers•Anima. I L= ROURE NO.7 .. 1 .11•