Knife River - Turbidity: TMDL Project

This project addresses 1 impairment: turbidity, on one segment of the Knife River from the headwaters of the Knife River to Lake Superior. The St. Louis County Soil and Water Conservation District has completed the TMDL study for turbidity. The TMDL was completed and approved by EPA in 2010.

Map and location

The Knife River is located within the Lake Superior - South watershed of the Lake Superior Basin. 

PDF icon Map of the Poplar River within Lake Superior Basin

TMDL report and implementation plan




Information contact

Greg Johnson, Project Manager
Minnesota Pollution Control Agency
520 Lafayette Rd N
St. Paul, MN 55155