Have you ever wondered where all the water goes when it rains or after the snow melts? Some of it seeps into the ground or evaporates, but much of it runs off over the land, down streets and into a storm drainage system. This runoff water is called stormwater.
The Framingham Public Works Department manages the Town’s Municipal Separate Storm Sewer System (MS4). This system, also known as the drainage system, includes about 65 miles of drainage pipe connecting 8,000 catch basins (also called drains) and 2,000 drainage manholes.
The Town is authorized to discharge stormwater through the Phase II National Pollutant Discharge Elimination System (NPDES) general permit for small MS4s. The U.S. Environmental Protection Agency (EPA) oversees the NPDES Phase II permitting program. In order to comply with the program the Town must follow six Minimum Control Measures, which are implemented through a series of Best Management Practices (BMPs):