EBMUD, established by a vote of the people in 1923, has a proud history of providing high-quality drinking water for 1.3 million customers in Alameda and Contra Costa counties. The District's award-winning wastewater treatment protects San Francisco Bay and services 650,000 customers.


From Pardee Reservoir and through a web of pipes and facilities, EBMUD supplies mountain water to East Bay customers. Every day of the year, EBMUD treats wastewater before it is discharged to the bay. The District recycles water, produces energy from waste and works with residents and businesses to keep pollutants from reaching the bay.

Learn about EBMUD's mission.
Learn about where your water comes from.
Learn about EBMUD's wastewater treatment.
Learn about environmental stewardship.

EBMUD service

EBMUD's water service area spans 332-square miles in Alameda and Contra Costa counties, north to Crockett and south to San Leandro. EBMUD's wastewater service area covers 88-square miles along the San Francisco Bay's eastern shore from Richmond to San Leandro.

EBMUD has a publicly elected seven-member
Board of Directors. Under the direction of the Board and General Manager, EBMUD staff works 24/7 to ensure operations run smoothly - from maintaining the complex water and wastewater systems, to serving customers, to protecting watershed lands.


We are here to help.

Call 1-866-403-2683 and an operator will assist you.
Email: custsvc@ebmud.com.
Mailing address: P.O. Box 24055 Oakland, CA  94623
Administrative Offices: 375 11th St., Oakland 94607

To reach a specific department directly, check the Contact Us page.

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