New Diablo Water District Customer Portal now available: online payment options, historical consumption and new features that will be launched soon to help customers manage their water use and bills.  

To pay via phone call: 866-279-7518

Due to the COVID-19 pandemic, our office is closed to the public.  Please use one of our online bill payment solutions or call the office 925-625-3798 to make payment arrangements.

Miscellaneous Useful Links

Contra Costa Water District

City of Oakley

Community Services

Contra Costa County

California Division of Drinking Water

State Sustainable Groundwater Management Act