Impaired Waters/TMDL

The federal Clean Water Act requires states to identify and list water bodies that are “impaired,” or do not meet state water quality standards.

The Vermillion River main stem, tributaries, and several lakes are listed by the Minnesota Pollution Control Agency (MPCA) as impaired.

The MPCA and the VRWJPO completed studies that identified what pollutants cause the most stress to aquatic life (fish and macroinvertebrates) and set targets (total maximum daily loads, TMDLs) for reducing those pollutants. These targets are incorporated into a Watershed Restoration and Protection Strategy (WRAPS), which details how the VRWJPO and local governments plan to protect clean water and restore impaired water resources.


Maps Impaired Waters
Impaired Waters – Download PDF