The 2020 Industrial Stormwater (ISW) general permit expires on March 31, 2025, and the MPCA’s Industrial Stormwater Program has been developing the 2025 permit. The 2025 ISW general permit is now drafted and the MPCA will be holding two informational meetings to go over the proposed changes. Both meetings will cover the same topics.
- October 17 (2 p.m.)
- October 30 (10 a.m.)
These informational meetings are not part of the formal public comment period for the 2025 permit. The public comment period will be communicated to stakeholders when available.