2021 MS4 Permit and TMDL - Permit and Plans

2021 NPDES MS4 Phase 1 Permit issued to the City of Portland and the Port of Portland. 2021-2026. Accompanied with the 1) NPDES MS4 Permit 2) MS4 Stormwater Management Plan (SWMP) 3) MS4 Stormwater Monitoring Plan 4) Total Maximum Daily Load (TMDL) Implementation Plan (TIP)

Tuesday, January 31, 2023 at 1:10:07 PM

Environmental Services - Stormwater Regulatory Compliance - MS4 Permit Program - MS4 Permit 2021

23/EF/1147

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