Delta Diablo Sanitation District was originally formed in 1955 to protect the health of the public and the environment by collecting and effectively treating wastewater. The existing regional wastewater treatment facility was completed in 1982. The District’s East Contra Costa County service area of Antioch, Bay Point and Pittsburg is 42 square miles with a population approaching 190,000.
In 2001, DDSD started its recycled water program in an effort to help protect the state’s valuable and limited drinking water supply. Recycled water is used at two nearby power generating plants and for landscape irrigation.
The District operates the Delta Household Hazardous Waste Collection Facility at 2500 Pittsburg-Antioch Highway, between Loveridge and Somersville Roads.