Little Sioux River

Land use in this watershed is primarily agriculture, with most land in row crop production.

What's being done

Healthier watersheds - embed

Watersheds: Tracking the actions taken

See actions taken in Minnesota’s watersheds to meet water-quality goals and milestones: WRAPS, TMDLs, best practices, wastewater, and money spent.

Water quality assessment data for government partners

Tribal, federal, state and local partners: View and download results of monitoring and assessment decisions for Minnesota waters based on designated uses and watersheds.

Monitoring and assessment

• Missouri River Basin Watersheds Monitoring and Assessment Summary
• Missouri River Basin (Upper Big Sioux, Lower Big Sioux, Little Sioux, and Rock River Watersheds) Monitoring and Assessment Report
• Little Sioux River Watershed Biotic Stressor Identification Report
• Summary - Missouri River Basin watersheds Stressor Identification Report (wq-ws5-10170202c)
• Missouri River Basin Hydrology, Connectivity, and Geomorphology Assessment Report

Water quality model supporting documents

• Model Development for the Minnesota Portions of the Big Sioux and the Little Sioux-Missouri River Watersheds (wq-iw7-44n)

• HSPF QAQC Big Sioux River Watershed (wq-iw7-44o)

• Missouri River Basin HSPF Model Description (wq-iw7-44p)

• HSPF QAQC Calibration for Rock River and Little Sioux River watersheds (wq-iw7-44q)

• Hydrology and Water-Quality Calibration and Validation of Big Sioux and the Little Sioux-Missouri River Watershed Model Applications (wq-iw7-44r)

Strategy development for restoration and protection

• Missouri River Basin TMDL Report (wq-iw7-44e) (EPA approval 2/15/2018)
• Appendices for Missouri River Basin TMDL report (wq-iw7-44h)
• Missouri River Basin TMDL: EPA approval letter (wq-iw7-44g)
• Missouri River Basin WRAPS Report (wq-ws4-40a) (MPCA approval 1/18/2018)
• Summary - Missouri River Basin Watersheds-Watershed Restoration and Protection Strategy (wq-ws4-40b)