Delta Diablo

Delta Diablo is an innovative and award winning wastewater resource recovery agency providing wastewater, recycled water, street sweeping, and household hazardous waste services to an estimated 200,000 residents and businesses in communities of Antioch, Bay Point, and Pittsburg. The District is located in the heart of the Northern California Delta region, 50 miles east of San Francisco and has a service area encompassing 54 square miles with over 70 miles of underground pipeline systems. In 2014, the District treated 4.6 billion gallons of wastewater and is permitted for an average dry weather flow of 19.5 million gallons per day. Delta Diablo also operates a recycled water treatment and distribution system that supplies up to 12 million gallons of tertiary-treated water daily. Since 2001, this recycled water system has been instrumental in increasing water supply reliability by offsetting water demands from the Sacramento/San Joaquin Delta. The recycled water is used for cooli...