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.

Free Ways to Save

Water Efficient Demonstration Garden

Get ideas on attractive low water use landscape at our water efficient demonstration garden located beside our office at 87 Carol Lane, Oakley.

Free Water Saving Hardware

Visit our office at 87 Carol Lane for the following free items:

Massage showerhead
Dual-flow kitchen aerator
Bathroom faucet aerator
Dye tablets

Reduce showerhead water usage by 20% and save on your water bill

Kitchen aerator with easy flow reducing switch and pre-rinse spray

Lower water usage while maintaining cleaning power

Use dye tablets to see if your toilet is leaking