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 Delta Diablo Sanitation District: About DDSD CCTV featured a documentary demonstrating how we process recycled water to meet the State's strict regulatory requirements while providing beneficial reuse as tower cooling water at 2 local power plants, as well as landscape irrigation at 12 city parks and 2 local golf courses To prevent spam we utilize a verification code system