00 -Avienda Apartments PROJECT O&M PLAN_2025-10-17
www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060
Stormwater Best Management Practices (BMPs)
Inspections and Maintenance Plan
Project Name: Avienda Apartments
CSG Project Number 24440
Project Owner: Avienda Apartments Owner, LLC
100 Lake Street West, Suite #200
Wayzata, MN 55391
Property Address: 9150 Kestrel Drive
Chanhassen, MN 55317
Date: 10/17/2025
Maintenance Contact
Person/Property Owner: Jacquel Hajder
Avienda Apartments Owner, LLC
100 Lake Street West, Suite #200
Wayzata, MN 55391
952-641-9423
Jacquel.Hajder@Dorancompanies.com
This Operation and Maintenance Plan has been prepared by Civil Site Group.
Matthew R. Pavek PE, License No. 44263
www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060
Table of Contents:
1. Summary Narrative
2. BMP Location Map
3. BMP Ownership Map REOA
4. BMP Ownership Map Avienda Apartments
5. BMP Inspection & Maintenance Activities & Report
Introduction:
Stormwater treatment for this site is accomplished by implementing an Underground Storm
Chamber System or rate control basin in the north of the project site. This system accepts
stormwater from offsite public areas (Avienda parkway from the north) and provides rate control and
live storage before discharging to the NW. The projects stormwater runoff is collected via surface
drainage and storm sewer piping from rain events to the east towards a Regional Basin / surface
wet basin / water re-use basin to the east side of the site. The east basin is off of the subject
property and will be managed and maintained by others. This basin is designed to provide water
quality treatment and meet rate control requirements of the watershed.
Need for Inspection and Maintenance:
The stormwater system is the first line of defense from conveying pollutants downstream into city
storm sewer and public water ways, worsening water quality. The purpose of regular inspection and
maintenance is to ensure the proper operation of the system and the overall storm system. Regular
maintenance of the system and all its components is required to achieve the water quality objective.
This Operations and Maintenance plan requires frequent inspections, per inspection
activities table. Maintenance activities required per maintenance activities table for each
flagged inspection item are required to be completed as soon as possible following any
inspection.
Responsibility of Property Owner following construction/completion:
Upon installation of the approved system, the property manager assumes responsibility and all costs
associated with the system’s long-term operation and maintenance. The property owner shall
maintain records of all inspections and maintenance of the system/s and submit reports to the
proper authority (city, watershed, etc.) if required. The following document is a guide to the
inspection and maintenance of the system.
REST.RETAIL7,000 S.F.5,000 S.F.BASIN 14PNWL = 912.00BOT = 905.00HWL= 917.94CAR WASHRETAIL5,000 S.F.REST.7,000 S.F.REST.7,000 S.F.RETAIL6,700 S.F.FFE=920.00FFE=920.00FFE=919.50FFE=920.00FFE=918.00FFE=918.0067812STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>STS >>STS >>STS>>STS>>STS>>S
T
S>>346.68N88°54'43"WSTS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>SAN >SAN >SAN >SAN >SAN >SAN>STS >>STS >>STS >>STS >>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS STS>>STS>>STS>>STS>>SAN >SAN >SAN >>>STS>>STS>>STS>>STS>>PROPOSED BUILDINGFFE = 924.95GFE = 924.53PROPOSED BUILDINGFFE = 925.60GFE = 925.18PROPOSED BUILDINGFFE = 926.20GFE = 925.78PROPOSED BUILDINGFFE = 926.50GFE = 926.08PROPOSED BUILDINGFFE = 925.75GFE = 925.33PROPOSED BUILDINGFFE = 925.20GFE = 924.78PROPOSED BUILDINGFFE = 923.95GFE = 923.53PROPOSED BUILDINGFFE = 924.40GFE = 923.98PROPOSED BUILDINGFFE = 925.35GFE = 924.93PROPOSED BUILDINGFFE = 925.70GFE = 925.28PROPOSED BUILDINGFFE = 925.15GFE = 924.73PROPOSED BUILDINGFFE = 926.40GFE = 925.98PROPOSED BUILDINGFFE = 926.15GFE = 925.73PROPOSED BUILDINGFFE = 925.00GFE = 924.58ONLYGF=927.8928.1 (FFE)SOG927.6GF=928.8929.1 (FFE)SOG928.6GF=930.8931.1 (FFE)SOG930.6GF=923.1GF=922.0914.5FBWO914.0GF=930.8923.3FBWO922.8GF=933.1925.6FBWO925.1GF=934.5927.0FBWO926.5GF=935.7930.2FBWO927.7GF=935.3927.8FBWO927.3GF=936.3928.8FBWO928.3GF=936.4928.9FBWO928.4GF=936.4928.9FBWO928.4GF=935.5928.0FBWO927.5GF=934.7927.2FBWO926.7GF=933.8926.3FBWO925.8BMP LOCATION MAPINLETOUTLETSTRUCTURECATCHBASINSUMP STORM MANHOLEUNDERGROUND STORMCHAMBER SYSTEMProject Number:Issue Date:Revision Number:Revision Date:5000 Glenwood AvenueGolden Valley, MN 55422612-615-0060www.CivilSiteGroup.comAVIENDA APARTMENTS244409150 KESTREL DRIVE CHANHASSEN, MN 55317EX A22025/10/17ACCESSRISER01" = 120'-0"120'-0"60'-0"NOUTLETROOF / BUILDINGCONNECTIONSTORM MANHOLEACCESS RISERCATCH BASINROOF / BUILDINGCONNECTIONROOFCONNECTIONAREADRAINSTORMMANHOLECATCHBASINAREADRAINAREA DRAINEXISTING STORMMANHOLEAREA DRAINSTORM MANHOLECATCH BASINTRENCH DRAINTRENCH DRAINVEGETATEDSWALEVEGETATED SWALEVEGETATEDSWALEEXISTING STORMMANHOLEFOR MORE DETAILED DESIGN INFORMATION; I.E.PIPE SIZE, MATERIAL, SLOPE, UNDERGROUNDSYSTEM DESIGN, CONTACT ENGINEER FORCONSTRUCTION DOCUMENTS AND/OR AS-BUILTINFORMATION.CIVIL SITE GROUP612-615-0060MPAVEK@CIVILSITEGROUP.COMSTORM MANHOLEEXISTING STORMMANHOLE
REST.RETAIL7,000 S.F.5,000 S.F.BASIN 14PNWL = 912.00BOT = 905.00HWL= 917.94CAR WASHRETAIL5,000 S.F.REST.7,000 S.F.REST.7,000 S.F.RETAIL6,700 S.F.FFE=920.00FFE=920.00FFE=919.50FFE=920.00FFE=918.00FFE=918.0067812STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>STS >>STS >>STS>>STS>>STS>>S
T
S>>346.68N88°54'43"WSTS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>SAN >SAN >SAN >SAN >SAN >SAN>STS >>STS >>STS >>STS >>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS STS>>STS>>STS>>STS>>SAN >SAN >SAN >>>STS>>STS>>STS>>STS>>PROPOSED BUILDINGFFE = 924.95GFE = 924.53PROPOSED BUILDINGFFE = 925.60GFE = 925.18PROPOSED BUILDINGFFE = 926.20GFE = 925.78PROPOSED BUILDINGFFE = 926.50GFE = 926.08PROPOSED BUILDINGFFE = 925.75GFE = 925.33PROPOSED BUILDINGFFE = 925.20GFE = 924.78PROPOSED BUILDINGFFE = 923.95GFE = 923.53PROPOSED BUILDINGFFE = 924.40GFE = 923.98PROPOSED BUILDINGFFE = 925.35GFE = 924.93PROPOSED BUILDINGFFE = 925.70GFE = 925.28PROPOSED BUILDINGFFE = 925.15GFE = 924.73PROPOSED BUILDINGFFE = 926.40GFE = 925.98PROPOSED BUILDINGFFE = 926.15GFE = 925.73PROPOSED BUILDINGFFE = 925.00GFE = 924.58ONLYGF=927.8928.1 (FFE)SOG927.6GF=928.8929.1 (FFE)SOG928.6GF=930.8931.1 (FFE)SOG930.6GF=923.1GF=922.0914.5FBWO914.0GF=930.8923.3FBWO922.8GF=933.1925.6FBWO925.1GF=934.5927.0FBWO926.5GF=935.7930.2FBWO927.7GF=935.3927.8FBWO927.3GF=936.3928.8FBWO928.3GF=936.4928.9FBWO928.4GF=936.4928.9FBWO928.4GF=935.5928.0FBWO927.5GF=934.7927.2FBWO926.7GF=933.8926.3FBWO925.8REOA OWNERSHIP MAPINLETOUTLETSTRUCTURESUMP STORM MANHOLEUNDERGROUND STORMCHAMBER SYSTEMProject Number:Issue Date:Revision Number:Revision Date:5000 Glenwood AvenueGolden Valley, MN 55422612-615-0060www.CivilSiteGroup.comAVIENDA APARTMENTS244409150 KESTREL DRIVE CHANHASSEN, MN 55317EX B..ACCESSRISER01" = 120'-0"120'-0"60'-0"NOUTLETSTORM MANHOLEACCESS RISERCATCH BASINSTORM MANHOLECATCHBASINEXISTING STORMMANHOLE10/17/2025CATCH BASINREOA OWNED ANDMAINTAINED STORM WATERBMP INFRASTRUCTUREEXISTING STORMMANHOLE
REST.RETAIL7,000 S.F.5,000 S.F.BASIN 14PNWL = 912.00BOT = 905.00HWL= 917.94CAR WASHRETAIL5,000 S.F.REST.7,000 S.F.REST.7,000 S.F.RETAIL6,700 S.F.FFE=920.00FFE=920.00FFE=919.50FFE=920.00FFE=918.00FFE=918.0067812STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>STS >>STS >>STS>>STS>>STS>>S
T
S>>346.68N88°54'43"WSTS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>SAN >SAN >SAN >SAN >SAN >SAN>STS >>STS >>STS >>STS >>STS >>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS STS>>STS>>STS>>STS>>SAN >SAN >SAN >>>STS>>STS>>STS>>STS>>PROPOSED BUILDINGFFE = 924.95GFE = 924.53PROPOSED BUILDINGFFE = 925.60GFE = 925.18PROPOSED BUILDINGFFE = 926.20GFE = 925.78PROPOSED BUILDINGFFE = 926.50GFE = 926.08PROPOSED BUILDINGFFE = 925.75GFE = 925.33PROPOSED BUILDINGFFE = 925.20GFE = 924.78PROPOSED BUILDINGFFE = 923.95GFE = 923.53PROPOSED BUILDINGFFE = 924.40GFE = 923.98PROPOSED BUILDINGFFE = 925.35GFE = 924.93PROPOSED BUILDINGFFE = 925.70GFE = 925.28PROPOSED BUILDINGFFE = 925.15GFE = 924.73PROPOSED BUILDINGFFE = 926.40GFE = 925.98PROPOSED BUILDINGFFE = 926.15GFE = 925.73PROPOSED BUILDINGFFE = 925.00GFE = 924.58ONLYGF=927.8928.1 (FFE)SOG927.6GF=928.8929.1 (FFE)SOG928.6GF=930.8931.1 (FFE)SOG930.6GF=923.1GF=922.0914.5FBWO914.0GF=930.8923.3FBWO922.8GF=933.1925.6FBWO925.1GF=934.5927.0FBWO926.5GF=935.7930.2FBWO927.7GF=935.3927.8FBWO927.3GF=936.3928.8FBWO928.3GF=936.4928.9FBWO928.4GF=936.4928.9FBWO928.4GF=935.5928.0FBWO927.5GF=934.7927.2FBWO926.7GF=933.8926.3FBWO925.8AVIENDA APARTMENTS OWNERSHIP MAPCATCHBASINProject Number:Issue Date:Revision Number:Revision Date:5000 Glenwood AvenueGolden Valley, MN 55422612-615-0060www.CivilSiteGroup.comAVIENDA APARTMENTS244409150 KESTREL DRIVE CHANHASSEN, MN 55317EX C..01" = 120'-0"120'-0"60'-0"NROOF / BUILDINGCONNECTIONCATCH BASINROOF / BUILDINGCONNECTIONROOFCONNECTIONAREADRAINSTORMMANHOLECATCHBASINAREADRAINAREA DRAINEXISTING STORMMANHOLEAREA DRAINTRENCH DRAINTRENCH DRAINVEGETATEDSWALEVEGETATED SWALEVEGETATED SWALE10/17/2025STORM MANHOLEAVIENDA APARTMENTS OWNEDAND MAINTAINED STORMWATER BMP INFRASTRUCTURE
www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060
3. Inspection & Maintenance Activities- Underground Storm Chamber System
These inspections should be completed every 3-6 months and after a significant rainfall event unless otherwise noted.
These are general inspection/maintenance items that should be completed with every Storm Chamber System. Visit Manufacturer’s website for
a copy of the most current and in-depth system specific inspection/maintenance list.
Site ID: BMP Type/Number: Underground Storm Chamber System
Inspection Date: Inspector:
Inspection Activity
Observations
Maintenance
Procedure/Frequency
Maintenance
Required
(Y/N)
Actions
Completed
1. 1. Visual inspection of
contributing drainage area i. e.
parking lots and open space, for
trash and debris and erosion.
Remove trash and debris from
structure as outlined by
manufacturer’s recommendation
Completed by:
Date:
2. Measure and record depth of
sediment at sump manholes,
access risers, and/or
observation ports of
underground system. If the
average depth of sediment is
at or above, 3 inch depth
clean as indicated.
Remove any floatables,
accumulated trash or debris.
Clean out system using a JetVac
A) A fixed culvert cleaning
nozzle with rear facing nozzle
spread of 45 inches or
more is preferable
B) Apply multiple passes of
JetVac until backflush water is
clean
C) Vacuum manhole sump as required
Completed by:
Date:
3. Oil accumulation in device(s) Remove oil from water surface using
method outlined by manufacturer’s
recommendation
Completed by:
Date:
4. Visual inspection of internal
components of device Dependent on type of damage; Repair
structure per manufacturer’s
recommendations
Completed by:
Date:
5. Inspect storm water
conveyance system componants
(inlets, outlets, catch basins,
manholes, & outlet control
structure) to ensure good
condition and no evidence of
erosion or sediment deposits.
Repair impacted BMP component per
original plans
Completed by:
Date:
6. Inspect surface above
system for cracks, settling or
loose soils.
Repair/replace system per original
plans
Completed by:
Date:
www.CivilSiteGroup.com 5000 Glenwood Ave • Golden Valley • Minnesota • 55422 (612) 615-0060
Complete this self-inspection form and Manufacturer’s inspection for each site inspection. Retains records and return with supporting pictures
as directed by the signed/executed/recorded maintenance agreement :
Local Maintenance Contractors
Charlie Wilson
Minnesota Utilities
& Excavating
(651) 464-5532
charlie@mnue.net
Jesse Wilcox
Carl Bolander and Sons
(651) 224-6299
jesse@bolander.com
Mike Waldenburg
David’s Hydro Vac
(651) 207-6134
mikew@davidshydrovac.com
Matt Miklya
Valley-Rich Co., Inc.
(952) 448-3002
matt@valleyrich.com