NPDES Stormwater Permit Program In New England

The Clean Water Act authorizes EPA and states, which are delegated the authority by EPA, to regulate point sources that discharge pollutants into waters of the United States through the National Pollutant Discharge Elimination System (NPDES) permit program. So-called "point sources" are generated from a variety of municipal and industrial operations, including treated wastewater, process water, cooling water, and stormwater runoff from drainage systems. The NPDES Stormwater Program (national EPA NPDES site), in place since 1990, regulates discharges from municipal separate storm sewer systems (MS4s), construction activities, industrial activities, and those designated by EPA due to water quality impacts.

On this page:

• Administration
• Large & Medium MS4 Permits
• Small MS4 Program
• Construction Activities
• Industrial Activities
• Residual Designations
• Tools and Resources