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The Town of Winchester is required to comply with the requirements of the 2016 NPDES Phase II Municipal Separate Storm Sewer System (MS4) General Permit. The Permit requirements include the development, implementation, and enforcement of a Stormwater Management Program to reduce the discharge of pollutants to the MS4 to the maximum extent practicable. The 2016 MS4 Permit became effective on July 1, 2018.
The objectives of the permit are accomplished through the implementation of Best Management Practices (BMPs) for the following six minimum control measures.
Stormwater Management Plan (SWMP)
The Town prepared a Stormwater Management Plan (SWMP) that outlines the steps the Town is taking to ensure compliance with the permit. The SWMP is a living document that is updated annually.
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