Delta Diablo provides wastewater conveyance and treatment services for over 70,000 customer accounts (residential and non-residential), representing approximately 214,000 residents in Antioch…

In response to new county, state, and federal guidelines, Delta Diablo is immediately suspending all public-facing services and facility access until further notice. This includes: 

Delta Diablo remains open and staff is available to serve you; however, in accordance with the recent shelter-in-place and social distancing guidelines, the District is ceasing in-person interaction…

If your toilet paper supply dwindles over the coming weeks and you switch to wipes, please DO NOT FLUSH WIPES. They do not break down in water. They clump and can break the machines that protect the…