Welcome to the City of Marysville's NPDES Phase II Permit page. Our city is committed to environmental stewardship, and the National Pollutant Discharge Elimination System (NPDES) Permit plays a crucial role in regulating stormwater and wastewater discharges to our state's waters. Though a federal permit, its authority now rests with the Washington State Department of Ecology.

Welcome to the City of Marysville's NPDES Phase II Permit page. Our city is committed to environmental stewardship, and the National Pollutant Discharge Elimination System (NPDES) Permit plays a crucial role in regulating stormwater and wastewater discharges to our state's waters. Though a federal permit, its authority now rests with the Washington State Department of Ecology. Under this permit, the City of Marysville, like other affected municipalities, has established a comprehensive Stormwater Management Program (SWMP) addressing essential elements. These include Stormwater Planning, Public Education and Outreach, Public Involvement and Participation, MS4 Mapping and Documentation, Illicit Discharge Detection and Elimination, Controlling Runoff from New Development, Redevelopment, and Construction Sites, Operations and Maintenance, and a Source Control Program for Existing Development.