Industrial stormwater

Industrial stormwater general permit, 2020-2025

PDF icon 2020 Industrial Stormwater General Permit (wq-strm3-67i)

PDF icon Industrial Stormwater e-Services guidance (p-gen1-19)

New: Access the online application service via the e-Services portal:

Online training video for the new ISW e-Service

Industrial Stormwater Permit Information Access

A searchable database to find detailed information about industrial stormwater facilities. Permittees: download your quarterly sampling forms, annual report, and change form here.

10 steps to compliance

Step 1: Applicability — do you need a permit?

Step 2: Consider certifying for No Exposure

Step 3: Assess for pollutants, sources of contaminated stormwater

Step 4: Create SWPPP, choose and implement BMPs

Step 5: Gather application materials before applying

Step 6: Apply, modify or terminate permit coverage / No Exposure certification

Step 7: Follow applicable permit /sector-specific requirements

Step 8: Annual requirements — employee training, reports and monthly inspections

Step 9: Sampling

Step 10: Submitting sample results

Industrial Stormwater e-Newsletters

  • Featured article: Could your facility flood?
  • Upcoming training opportunities
  • New permit documents and guidance
  • Wet season makes for great samples
  • The Big Question: 'What’s required of me for the year?'

Published: March 21, 2019
  • Featured article: 2020 permit issuance update
  • Fully online industrial stormwater training now available!
  • U of M announces first training workshop of 2019
  • Upcoming industrial stormwater compliance webinar
  • More salt = more pollution
  • National Pollution Prevention Conference: an update
  • Stormwater Pollution Prevention Tips and suggestions
Published: December 03, 2018
  • Featured article: September 13: next U of M training workshop
  • 2020 general permit reissuance, an update
  • MPCA presenting at national pollution prevention conference
  • MN 2018 Conference on the Environment
  • Words from one permittee
Published: September 04, 2018

Program contact information

About the Industrial Stormwater Program

  • Develop an effective Stormwater Pollution Prevention Plan (SWPPP) which contains your Stormwater Control Measures, described as Best Management Practices (BMPs).
  • Manage stormwater runoff by meeting the permit requirements or certify condition of No Exposure.
  • Read and comply with the PDF icon Multi-Sector General Permit for Industrial Activity (wq-strm3-67a)