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. Treated effluent is discharged into New York Slough, a section of the San Joaquin River. The District’s largest asset is its staff of dedicated employees who keep the system running 24 hours a day, 365 days a year, serving nearly 200,000 East County residents (Antioch, Bay Point, Pittsburg).
The District’s wastewater service area encompasses 42 square miles. We maintain 49 miles of underground pipeline collection systems in Bay Point. Pittsburg and Antioch maintain their own collection systems. The wastewater treated by the District originates from different types of users; residential users make up 85%, industrial users 5%, and commercial users 10%. In 2010, Delta Diablo treated an average of 13.4 million gallons per day (mgd); the plant is capable of treating up to 16.5 mgd. Once the wastewater arrives at the treatment plant from the collection system, it is treated using physical and biological processes that remove organic and inorganic material, bacteria, and other harmful substances. The wastewater is thoroughly treated and tested before it is released into the river. This treated water meets all federal and state standards.
Member Since: 2003