Stormwater Discharges from Industrial Activities in Region 10
For questions about the Multi-Sector Stormwater General Permit, contact:
- Stacey Kim (email@example.com), 206-553-1380.
- Margaret McCauley (firstname.lastname@example.org), 206-553-1772.
To report compliance problems, call our 24-hour reporting line at 206-553-1846 and leave a description of the problem, your contact information, and your MSGP tracking number.
For other stormwater information, visit Region 10 Stormwater Program.
In Region 10, EPA is the NPDES stormwater permitting authority for facilities on Indian lands in Idaho, Oregon and Washington; federal operators in Washington; and the Metlakatla Reservation and Denali National Park in Alaska.
If EPA is not the permitting authority for your facility, contact your state's stormwater program:
- Alaska Stormwater Program
- Idaho Stormwater Permits
- Oregon Water Quality Permits
- Washington Stormwater General Permits
Use this chart to help you decide whether you need to apply for coverage under the under the Multi-Sector General Permit (MSGP) for Industrial Stormwater: Industrial Stormwater Decision Chart (pdf).
What if everything we do is indoors?
You may submit a No Exposure Certification if all of your industrial materials and activities are protected by a storm resistant shelter to prevent exposure to rain, snow, snowmelt, and/or runoff. Read Appendix K of the MSGP: No Exposure Certification Form (PDF)(6 pp, 453 K) to determine if you're eligible for exclusion from stormwater permitting.
If eligible, file your No Exposure Certification online.
Other guidance for determining if you need a permit
- EPA Memorandum on Coverage of DOT Sand and Gravel Operations Under the MSGP (PDF)(3 pp, 133 K) - This memo addresses how the MSGP applies to stormwater discharges from gravel pits and associated processing operations used to support road and bridge construction and/or maintenance.
- Questions and Answers about the MSGP in EPA Region 10 (PDF)(22 pp, 326 K) - As of August 2015.
- Read the 2021 Multi-Sector General Permit. An MSGP Technical Fact Sheet (pdf) is also available.
- Prepare a Stormwater Pollution Prevention Plan (see "Industrial Stormwater Guidance" below).
- Complete the endangered species determination.
- Complete the historic properties determination.
- Submit your Notice of Intent (NOI) online. Electronic submittal is required in most circumstances, but you can review the information needed in Appendix G: NOI for Industrial Stormwater Discharges (NPDES Form 3510-6) (pdf).
- Wait for confirmation from EPA that your facility is covered (typically within 30 days).
Other guidance about obtaining a permit
- Industrial Stormwater Guidance - Information about developing your Stormwater Pollution Prevention Plan (SWPPP), monitoring and sampling, and FAQ.
- EPA Industrial SWPPP Template (Microsoft Word) - Step-by-step instructions for developing a plan for your site. All facilities must have a plan completed before submitting an NOI for coverage under the MSGP.
- Use our NPDES General Permit Inventory and eNOI Search Tool to look up past coverage.
Check for special permit conditions
If your facility is located in the following areas, be sure to check Part 9.10 of the MSGP for details about additional permit conditions:
- Shoshone-Bannock Tribes (see part 10.4.1)
- Confederated Tribes of the Umatilla Indian Reservation (see part 22.214.171.124)
- Confederated Tribes of the Warm Springs Indian Reservation (see part 126.96.36.199)
- Lummi Nation (see part 188.8.131.52)
- Port Gamble S’Klallam Tribe (see part 184.108.40.206)
- Spokane Tribe of Indians (see part 220.127.116.11)
- Tulalip Tribes (see part 18.104.22.168)
- Federal operators in Washington State (see part 9.10.7)
Operators in certain watersheds may have additional monitoring requirements from watershed plans (TMDLs) or the Endangered Species Act. For copies of EPA's notifications to these operators, please contact Stacey Kim (email@example.com), 206-553-1380, or Margaret McCauley (firstname.lastname@example.org), 206-553-1772.
Report compliance problems
Call EPA Region 10’s 24-hour reporting line at 206-553-1846 and leave a description of the problem, your contact information, and your MSGP tracking number.
Submit reporting forms
- MSGP Documentation Template (Microsoft Word) - Use these sample templates and forms to keep records of your monitoring, inspection, maintenance, visual evaluation, and corrective action activities.
- MSGP Industrial Discharge Monitoring Report (MDMR) Form (pdf) - If you cannot access the EPA's online eNOI reporting system, you can use this fillable PDF to submit your analytical monitoring results to EPA. You may also use this form as a checklist for the information you will need when submitting a MDMR electronically via eNOI.
- Annual Reporting Form (pdf) - Use this form to submit your annual reports to EPA that summarize your comprehensive site inspection and corrective actions taken during the year.
Other guidance for complying with your permit
- Industrial Stormwater Fact Sheet Series - Fact sheets for each of the 29 industrial sectors regulated under the MSGP.
- Industrial Stormwater Monitoring and Sampling Guide (pdf) - How to conduct visual and analytical monitoring of stormwater discharges.
- Questions and Answers about the MSGP in EPA Region 10 (pdf) - Updated August 2015.