Stormwater Discharges from Industrial Activities-EPA's Proposed 2026 MSGP

Stormwater Discharges from Industrial Activities Topics
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Proposed 2026 Multi-Sector General Permit for Public Comment

EPA is seeking public comment on a proposed 2026 National Pollutant Discharge Elimination System (NPDES) Multi-Sector General Permit (MSGP) for stormwater discharges from industrial activity. This proposed permit would replace the 2021 MSGP upon finalization. This proposed permit would cover stormwater discharges from industrial facilities in areas where EPA is the NPDES permitting authority.

EPA will take comments on the proposal during a 60-day comment period, which ends February 11, 2025. Comments must be received on or before February 11, 2025.

Comments must be submitted on www.regulations.gov for docket ID EPA-HQ-OW-2024-0481.

The fact sheet, permit, and other associated documents can be found below and are available in the docket (docket ID EPA-HQ-OW-2024-0481).

In January 2025, EPA held a webinar to provide an overview of new proposed permit requirements.

Proposed 2026 MSGP Documents

Proposed 2026 MSGP – Permit

2026 MSGP – Appendices

National Pollutant Discharge Elimination System (NPDES)

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Last updated on January 17, 2025