
Only a very small portion of the 1.35-million-acre Upper Big Sioux River watershed is located in Lincoln County in western Minnesota. The vast majority is located in eastern South Dakota. Land use in this watershed is primarily agriculture, with row crops and livestock grazing.
What's being done
Monitoring and assessment
Upper Big Sioux River Watershed biotic stressor identification report (wq-ws5-10170202a)
Missouri River Basin watersheds stressor identification report: Summary (wq-ws5-10170202c)
Missouri River Basin (Upper Big Sioux, Lower Big Sioux, Little Sioux, and Rock River Watersheds) monitoring and assessment report (wq-ws3-10170204b)
Missouri River Basin Watersheds monitoring and assessment report: Summary (wq-ws3-10170204c)
Missouri River Basin hydrology, connectivity, and geomorphology assessment (wq-b7-01)
Strategies 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 WRAPS Report (wq-ws4-40b)
Water quality model supporting documents
More information
- Upper Big Sioux River Watershed Project
- South Dakota Department of Agriculture and Natural Resources
Contact
- Watershed project manager Paul Wymar, 507-476-4282
