Contact Us

District hours: Monday – Thursday 8 am to 5 pm and Fridays by phone until 4 pm

Emergencies: 24 hours / 7 days per week

Phone: (925) 625-3798

Email: customers@diablowater.org

Physical Address: 87 Carol Lane, Oakley, CA 94561

Mailing Address: P.O. Box 127, Oakley, CA 94561