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August 5, 2016
Re: Chanhassen West Water Treatment Plant – Planning Commission Submittal
WSB Project No. 1694-72
Project Name: Chanhassen West Water Treatment Plant
Applicant: WSB & Associates, Inc.
Engineer: Greg Johnson, WSB & Associates, Inc.
Owner: City of Chanhassen
Legal Description:
Date Proposed: September 2016
Vicinity Map: Attached, Appendix A
Intended Use and Occupancy: The site will be used for the construction of the West Water Treatment
Plant. The City studied potential locations for the water treatment plant beginning in 2003. At that time,
five sites were evaluated, all in the Galpin Boulevard area due to its proximity to the City’s well field. The
final site was selected based on size, feasibility, availability for purchase, and cost. The water treatment
plant will include one main building; a driveway, loading area, and parking lot; and a tank that will be
almost entirely submerged. The estimated average occupancy is one person. Also located on the
property will be elementary and preschool playgrounds and a bike trail.
Land Use: The planned land use for the property, as outlined in the City’s 2030 Comprehensive Plan, is
Public/Semi-Public.
Property Tabulation:
Parcel Size 6.57 acres
286,100 square feet
Gross Floor Area 16,950 square feet
Percent of Site Covered by
Building
5.9%
Percent of Site Covered by
Impervious Surface
(includes parking area)
13.2%
Percent of Site Covered by
Parking Area
1%
Projected Number of
Employees
2
Number of Parking Spaces
Required
3
Number of Parking Spaces
Provided
4 plus 1 handicapped
Building Height at Roof Peak 21 feet
Building Use(s)Municipal Water
Treatment
West Water Treatment Plant
City of Chanhassen
Planning Commission Submittal
August 5, 2016
Page 2
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Required Plan Items:
Item Number Description Location
1 Property line
dimensions
Drawing C-15
2 Grading and
drainage plans
Drawing C-15
3 Existing and
proposed points of
egress/ingress
Appendix C
4 Vehicular circulation
system
Appendix C
5 Landscaping plan Appendix B
6 Trash enclosure
information
None
7 Rooftop equipment
location
None
8 Signage location and
detail
None
9 Lighting information In design
10 Building elevations
(with color)
Appendix B
11 Utility plan Drawings C-13 and C-14
12 Hazardous materials Appendix D – 12,000 lbs
of chlorine gas
13 Fire protection See below
14 Other information
required by City
N/A
15 Photocomposite
images and
renderings
Appendix A
Fire Protection: The building will include an overhead fire sprinkling system. The system will be
connected to the watermain outside the building via a 6” or 8” line that will enter the south side of the
building.
APPENDIX A
SITE MAP
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RUBY LANE
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Figure 1:Site Location
Ü
0 200Feet
Future West WTP Site
West WTP Footprint
Future Playground
Pavement
Backwash Tanks
Future Shelter
APPENDIX B
LANDSCAPING AND SITE RENDERINGS
APPENDIX C
PARKING AND TURNAROUND PLAN
WEST WATER TREATMENT PLANT
FOR THE CITY OF
CHANHASSEN MINNESOTA
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APPENDIX D
HAZARDOUS MATERIAL STORAGE