Clean Water (NPDES) Program

The Contra Costa Clean Water Program (CCCWP) is dedicated to maintaining a healthy environment in Contra Costa’s beautiful creeks, rivers, the Delta and the Bay.


In 1972, The Federal Water Pollution and Control Act was enacted. In 1987, it was amended and is currently known as the Clean Water Act (CWA). In accordance with CWA amendments, regulations require municipalities to obtain permits which outline programs and activities to control surface stormwater pollution.

To comply with these regulations, Contra Costa County, nineteen of its incorporated cities and the Contra Costa Flood Control & Water Conservation District have joined together to form the CCCWP. The CCCWP strives to eliminate stormwater pollution through public education, inspection and enforcement activities and industrial outreach.

Contact the Contra Costa Clean Water Program

For more information regarding the Contra Costa Clean Water Program, including information on stormwater issues, watershed characteristics, and stormwater pollution prevention, please contact the Contra Costa Clean Water Program.

National Pollutant Discharge Elimination Program

The Town of Moraga continues its efforts for National Pollutant Discharge Elimination Program (NPDES) compliance with the federally mandated NPDES program. The goal of the NPDES program is to reduce the discharge and runoff of non-point source pollutants (NPS) into storm drains which lead to our creeks, reservoirs, and San Francisco Bay.

Highlights of the program include inspection of construction activities for permit compliance, annual cleaning of drainage structures, inspection of all drainage culverts, weekly trash collection, marking of storm drains, and other maintenance to comply with the clean water regulations. 

View the Stormwater C.3 Guidebook (7th Edition) (PDF) for additional information.