Welcome to the MS4 Portal!

The MS4 Portal is a way to share tools and resources to help MS4 permittees and their consultants meet their permit requirements and the objectives of the Bay TMDL.

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Click on the pictures below to access resources and webcasts to help with each minimum control measure required under your MS4 permits:

MCM 1: Public Education and Outreach
MCM 2: Public Participation and Involvement
MCM 3: Illicit Discharge Detection and Elimination
MCM 4: Construction Site Runoff Control
MCM 5: Post Construction Runoff Control 
MCM 6: Pollution Prevention and Good Housekeeping