Minnesota NPDES Permits

Minnesota's laws revising the Minnesota Pollution Control Agency's (MPCA) authority to regulate sulfate in NPDES permits

EPA has notified the Minnesota Pollution Control Agency (MPCA) that changes to its wastewater permitting program resulting from certain amendments to Minnesota law that interfere with the State’s ability to require controls for discharges of sulfate in permits are disapproved, and therefore do not apply under Minnesota’s federally-approved National Pollutant Discharge Elimination System (NPDES) program. Disapproval of these laws means that MPCA cannot exempt discharges of sulfate from Clean Water Act (CWA) permit conditions on the basis of these laws.  EPA Letter Disapproving Revisions to the Minnesota Pollution Control Agency's NPDES Program Resulting from Minnesota Sulfate Session Laws (pdf) (1.15 MB) .

NPDES Petitions for Program Withdrawal in Minnesota

• Documents related to the Minnesota Center for Environmental Advocacy's Petition for Withdrawal of Minnesota's NPDES Program
• Documents related to the WaterLegacy Petition for NPDES Program Withdrawal in Minnesota

In Minnesota, EPA issues all NPDES permits on tribal lands. See the table below for final and draft permits issued by EPA. All other permits are currently issued by the Minnesota Pollution Control Agency.

For state-issued permits, visit Minnesota Pollution Control Agency Wastewater Permits.

Final and draft permits

The table below contains all final (i.e. active) and draft (i.e. proposed) NPDES permits issued by EPA within Minnesota. It includes permits for individual facilities, general permits, and stormwater permits. Click on the facility/permit name to view the permit and supporting documents.