Ramsey-Washington Metro Watershed District Watershed Restoration and Protection Strategy (WRAPS) Project: TMDL Project

The Ramsey-Washington Metro Watershed District (RWMWD) is located in the Eastern Twin Cities metropolitan area. The watershed encompasses approximately 41,600 acres and includes 18 lakes, 5 streams, and hundreds of wetlands. Land use in the watershed is generally developed, and includes industrial, commercial, and residential land.

Nutrient impairments: Bennett Lake and Wakefield Lake are on Minnesota’s 303(d) list of impaired waters due to excess nutrients (phosphorus). Excess nutrients, like phosphorus, can stimulate the growth of nuisance algal blooms in the summer which restrict recreational activities.

Bacteria impairment: Fish Creek was added to the impaired waters list in 2014 for exceeding the state’s Escherichia coli (E. coli) water quality standard. E. coli is used to indicate the potential presence of waterborne pathogens that can be harmful to human health. E. coli comes from human, pet, and wildlife waste. This project will involve additional monitoring of Fish Creek to identify the sources of E. coli to the stream.

Biotic impairment: In 2014, Battle Creek was placed on Minnesota’s 303(d) list of impaired waters due to stressors impacting the aquatic macroinvertebrate and fish communities. The Minnesota Pollution Control Agency (MPCA) uses an Index of Biotic Integrity (IBI) to assess the biological health of streams in the state. This project will include additional monitoring and a Stressor Identification Study to assess the pollutants causing the biological impairments in Battle Creek.

Watershed TMDL approach

The goal of this project is to develop a watershed-wide, multi-parameter Total Maximum Daily Load (TMDL) and a Watershed Restoration and Protection Strategy (WRAPS) that will collectively address all water quality impairments throughout the RWMWD. The project will also include strategies for protecting lakes in the watershed that are currently meeting state water quality standards. Protection strategies will be developed for Lake Emily, Lake Owasso, Lake Wabasso, Snail Lake, Battle Creek Lake, Beaver Lake, Keller Lake, and Carver Lake.

This TMDL/WRAPS project is a joint effort between the RWMWD, local communities, the Minnesota Department of Natural Resources, the Minnesota Pollution Control Agency, and other state, local, and federal agencies. The goals of this project are to identify the sources of impairments, quantify pollutant reductions needed to meet Minnesota’s water quality standards, and develop strategies for restoration and protection.

Map and location

The RWMWD is located within the Mississippi River - Twin Cities Watershed of the Upper Mississippi River basin. The watershed is located in Ramsey and Washington Counties, and includes all or portions of the Cities of St. Paul, Woodbury, Oakdale, Landfall, North St. Paul, Maplewood, Little Canada, White Bear Lake, Vadnais Heights, Gem Lake, Shoreview and Roseville.

WRAPS/Total Maximum Daily Load (TMDL) Report

Kohlman Lake TMDL documents

Other documents

Meetings and events

See the RWMWD Calendar for current meetings and events.

Links

Information contact

Brooke Asleson
Regional Division-Watershed Section
Minnesota Pollution Control Agency
520 Lafayette Road North
St. Paul, Minnesota 55155
651-757-2205
brooke.asleson@state.mn.us