Water Resources Management Plan
The Minnetonka Water Resources Management Plan (WRMP) was approved by the city council on August 3, 2009. The purpose of this WRMP is to provide proper management of surface and ground water by protecting, preserving and using natural surface and groundwater systems.
The WRMP is an excellent source of information for residents and developers when needing information on water bodies, wetlands or drainage patterns. The plan is based on goals the city council established for all of the city’s water resources and contains suggested capital improvements to achieve those goals.
Appendix A, “Stormwater Design Guidelines and Standards,” was prepared to assist developers, consultants and city staff in designing and managing water resource projects within the City of Minnetonka. This document outlines water resource related ordinances, required permits and approvals, and city design standards. In addition, there is detailed information related to stormwater volume credits and the design of various water quality treatment devices.
The documents linked below are all PDF files.
Introductory materials
Chapter I: Introduction
Download Chapter I: Introduction
- Location and History
- Regulatory History
- Need for the Plan
- Purpose and Scope
- General Approach to Planning
- Water Resources-Related Agreements
- Plan Organization
Chapter II: Goals and Policies
Download Chapter II: Goals and Policies
- Water Quality
- Creeks
- Wetlands
- Education and Public Involvement
- Water Quantity and Flooding
- Groundwater
- Erosion and Sedimentation
- Funding
Chapter III: Physical Environment Inventory
Download Chapter III: Physical Environment Inventory
- Climate and Precipitation
- Topography
- Watersheds and Drainage Patterns
- Land Use
- Soils
- Geology/Groundwater Resource Data
- Public Waters
- Forest Resources and Native Vegetation
- Wetland Resources and Protection
- Water Quality
- Water Quantity/Flooding
- Creeks
- Surface Water System
- Recreational Areas
- Fisheries and Aquatic Habitat
- Unique Features and Scenic Areas
- Pollutant Sources
Tables
- Table 3-1
- Precipitation Summary–Minneapolis/St. Paul Airport Station
- Table 3-2
- Selected Precipitation and Runoff Events
- Table 3-3
- MCWD Identified Landlocked Areas in the City of Minnetonka
- Table 3-4
- DNR Public Waters within the City of Minnetonka
- Table 3-5
- Wetland Types (Circular 39) and Characteristics
- Table 3-6a
- Bassett Creek Watershed Wetland Inventory
- Table 3-6b
- Minnehaha Creek Watershed Wetland Inventory
- Table 3-6c
- Nine Mile Creek Watershed Wetland Inventory
- Table 3-6d
- Purgatory Creek Watershed Wetland Inventory
- Table 3-7
- Wetland Management Standards According to Relative Susceptibility and Management Potential
- Table 3-8
- Susceptibility of Wetlands to Degradation by Stormwater Impacts
- Table 3-9
- Water Quality Monitoring
- Table 3-10
- Minnetonka Monitored Water Bodies—Physical Characteristics and Water Quality Management Classifications and Goals
- Table 3-11
- Summary of WMOs Water Quality Classification Systems
- Table 3-12
- MPCA Ecoregion Eutrophication Criteria for Shallow and Deep Lakes
- Table 3-13
- Impaired Waters in the City of Minnetonka
- Table 3-14a
- Bassett Creek Watershed Data, Hydrologic Modeling, and Water Quality Modeling Summary
- Table 3-14b
- Minnehaha Creek Watershed Data, Hydrologic Modeling, and Water Quality Modeling Summary
- Table 3-14c
- Nine Mile Creek Watershed Data, Hydrologic Modeling, and Water Quality Modeling Summary
- Table 3-14d
- Purgatory Creek Watershed Data, Hydrologic Modeling, and Water Quality Modeling Summary
- Table 3-15
- Summary of Available Hydrologic and Hydraulic and Pollutant Loading Models Completed by WMOs
- Table 3-16
- City of Minnetonka Load Reductions as Required by MCWD
- Table 3-17
- Water Quantity Monitoring
- Table 3-18
- Summary of Rosgen Criteria for Physical Classification of Streams
- Table 3-19
- Minnehaha Creek Channel Stability Ratings
- Table 3-20
- NMCWD and RPBCWD Ecological Use Classification Criteria
- Table 3-21
- Fishery and Aquatic Invasive Species Information
Figures
- Figure 3-1
- Average Monthly High and Low Temperatures and Precipitation for Minneapolis-St. Paul International Airport (1970–2000)
- Figure 3-2
- Precipitation-Duration-Frequency Curves For the Minneapolis-St. Paul Area
- Figure 3-3
- Watersheds
- Figure 3-4
- Drainage Subdistricts, Subwatersheds and Drainage Patterns
- Figure 3-5
- Redevelopment Areas
- Figure 3-6
- Hydrologic Soil Groups
- Figure 3-7
- Groundwater Sensitivity to Pollution
- Figure 3-8
- Wellhead Protection Areas
- Figure 3-9
- Public Waters Inventory
- Figure 3-10
- Public Ditches
- Figure 3-11
- MCWD Key Conservation Areas
- Figure 3-12
- Wetland Management Classification
- Figure 3-13
- Summary of Wetland Management Classification by a) Number and b) Acres of Wetland
- Figure 3-14
- National Wetlands Inventory (NWI)
- Figure 3-15
- Water Quality and Quantity Monitoring
- Figure 3-16
- Locations 2003–2005 Water Quality Total Phosphorus
- Figure 3-17
- Impaired Waters
- Figure 3-18
- Water Quality Modeling (PondNet) Results Summary
- Figure 3-19
- 100-Year Floodplain
- Figure 3-20
- Physical Stream Classification
- Figure 3-21
- Ecological Use Attainability (EUA) Classification
- Figure 3-22
- Recreation Areas and Public Access
- Figure 3-23
- Hazardous Waste Sites
Chapter IV: Watershed Plans
Download Chapter IV: Watershed Plans
- Bassett Creek
- Minnehaha Creek
- Nine Mile Creek Watershed
- Purgatory Creek
Tables
- Table 4-1
- Summary of Drainage Subdistrict Characteristics
Chapter V: Assessment of Issues
Download Chapter V: Assessment of Issues
- General Issues Discussion
- Minnesota Pollution Control Agency (MPCA) Issues
- Metropolitan Council Issues
- Bassett Creek Watershed Management Commission (BCWMC) Issues
- Minnehaha Creek Watershed District (MCWD) Issues
- Nine Mile Creek Watershed District (NMCWD) Issues
- Riley Purgatory Bluff Creek Watershed District (RPBCWD) Issues
- City of Minnetonka Issues
- Adequacy of Existing Programs
Tables
- Table 5-1
- MPCA Impaired Waters Listing Criteria
- Table 5-2
- Summary of the Impaired Waters List for Minnetonka
- Table 5-3
- MCWD Required Annual Phosphorus Load Reductions, City of Minnetonka
- Table 5-4
- NMCWD Goals and Issues for City of Minnetonka Lakes
Chapter VI: Implementation Program
Download Chapter VI: Implementation Program
- Water Quality/NPDES Phase II MS4 Permit
- Operation and Maintenance of Stormwater Systems
- Specific MCWD Tasks
- Education and Public Involvement
- Cost Estimation
- Funding of Implementation Program
- Design Standards
- Ordinance Implementation and Official Controls
- Implementation Priorities
- Plan Update and Amendment Procedures
- Regulatory Framework and Agency Responsibilities
- Opportunities
Tables
- Table 6-1
- WRMP Completion Timeline Compared to WMO Timelines
- Table 6-2
- Storm Drainage System Unit Costs
- Table 6-3
- Potential Implementation Activities (including Capital Improvements) and Planning Level Cost Estimates
- Table 6-4
- Implementation Activity Timelines and Corresponding Yearly Costs in Dollars
Chapter VII: References
Appendices
- Appendix A
- Design Guidelines and Standards
- Appendix B
- City of Minnetonka SWPPP
- Appendix C
- City of Minnetonka Nondegradation Report
- Appendix D
- Source Water Assessment and Wellhead Protection Plan for Minnetonka
- Appendix E
- City of Minnetonka Wetland Protection Ordinance
- Appendix F
- City of Minnetonka Shoreland District Ordinance
- Appendix G
- City of Minnetonka Floodplain District Ordinance
- Appendix H
- City of Minnetonka Emergency Management Basic Plan—Public Version
- Appendix I
- Hydrologic/Hydraulic Models
- Appendix J
- City of Minnetonka Stormwater Funding Policies
- Appendix K
- WMO Rules
- Appendix L
- MCWD Loading Reduction Report
- Appendix M
- Water Resource Related Agreements

