Minimum Control Measures (MCMs)

Stormwater regulations associated with the Federal Clean Water Act (CWA) are administered under the Municipal Separate Storm Sewer System (MS4) Program.  In Pennsylvania, the MS4 program is managed by the Pennsylvania Department of Protection (PA DEP).  Operators of a small MS4 must obtain an NPDES permit and develop and implement a stormwater management plan (SWMP) according to the details of their specific permit. Mandatory elements of the SWMP include six (6) Minimum Control Measures (MCMs) – explore each one below.

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