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