The Minnesota River-Mankato watershed is composed of several small first and second order streams that drain directly into the Minnesota River. Land use in the Minnesota River-Mankato watershed is dominated by row crop agriculture, with corn and soybean production accounting for about 90% of cropped lands.
County Soil and Water Conservation Districts have identified the primary resource concerns to be sediment and erosion control, stormwater management, drinking water and source water protection, drainage management, waste management, nutrient management, surface water quality and wetland management.
What's being done
Strategy development for restoration and protection
- Minnesota River bacteria TMDL and strategies report
- Middle Minnesota River Watershed Approach Civic Engagement Project Summary (wq-ws4-53c)
- Minnesota River-Mankato Watershed WRAPS Report (wq-ws4-63a)
- Minnesota River-Mankato Watershed TMDL Report (wq-iw7-53b)
- Summary: Minnesota River - Mankato WRAPS report (wq-ws4-53b)
The reports were open for public comment from July 22 to September 20. The MPCA thanks everyone who submitted comments. The agency is now reviewing those comments, considering suggested changes to the reports, and working on responses to all comments. All comments received and MPCA responses will be posted on this website when finalized.
Monitoring and assessment and stressor identification
Intensive water monitoring is completed, with the MPCA and local partners collecting data from more than 110 sites over two years.
- Minnesota River - Mankato watershed monitoring and assessment report (wq-ws3-07020007b)
- Summary - Middle Minnesota River-Mankato Watershed Monitoring and Assessment Report (wq-ws3-07020007d)
- Minnesota River - Mankato Watershed Stressor Identification Report (wq-ws5-07020007a)
- Summary - Minnesota River-Mankato Watershed Stressor Identification Report (wq-ws5-07020007b)
Water quality model supporting documents
- Model resegmentation and extension for Minnesota River watershed model applications
- Hydrology and water-quality calibration and validation of Minnesota River watershed model
- Middle Minnesota HSPF Summary (wq-ws3-07020007c)
- Minnesota River Basin HSPF Model Hydrology Recalibration (wq-iw7-47q)
- Minnesota River Basin Sediment Delivery Analysis (Final) (wq-iw7-47p)
- Minnesota River Basin HSPF Model Sediment Recalibration (wq-iw7-47o)
The MPCA worked with Fortin Consulting to develop a directory of stakeholders in the watershed. This directory offers a searchable list of groups with an interest in the Minnesota River. Middle Minnesota River Directory
New report available
This new report attempts to answer the question, "What would it take to achieve the water quality goals for Lake Pepin?" (July 2012)
Retired farmer helping Minnesota River
John Hogan has an 800-acre farm between Redwood Falls and Morton along the Minnesota River. He has worked hard on his 1.5 miles of riverfront to protect and restore water quality. (Tri-State Neighbor)
Sediment in the Minnesota River
Read Larry Gunderson's article in The Farmer magazine (March 2013).