When Is My Industrial Stormwater Permit Application Due?

The Minnesota Pollution Control Agency has finalized its revised industrial stormwater general permit. The new permit replaces the previous permit that was issued in 1997. The revised permit represents a significant departure from compliance requirements Minnesota industrial and “industrial-like” facilities have had. MPCA has made the new final permit effective April 5, 2010.

All facilities subject to the stormwater rules must submit an application for coverage under the new permit, even if already covered under the expired permit. Existing facilities must have prepared and implemented a new SWPPP and be in compliance with the new permit before they apply for permit coverage. New facilities must submit applications at least 180-days before beginning construction or operation.

Note: Facilities that have previously submitted a No Exposure Certification need to reassess their site based on current MPCA certification requirements and reapply for coverage.

Because of the volume of applications that MPCA expects to receive, the due date for applications is staggered over six months. Application due dates will be based on the industrial sector a given facility falls into:

List of Minnesota MPCA Industrial Permit Application Deadlines By Industrial Sector



Upcoming industrial storm water training:
Click here for information on Metro SWPPP Implementation Training May 19, 2010

Click here for information on SWPPP Implementation Training in Mankato, MN May 27, 2010

Click here for information on SWPPP Implementation Training in Moorhead, MN June 3, 2010


Caltha LLP provides expert environmental consultant services in Minnesota to obtain air and wastewater permits, evaluate regulatory requirements, and to develop cost effective compliance programs.

For further information, contact Caltha LLP at:
Email: info@calthacompany.com
Phone: (763) 208-6430
Website: http://www.calthacompany.com/
Two Minnesota offices - Minneapolis and Pine River