Contact Us

Contact Us

  1. Contra Costa Water District
    1331 Concord Avenue
    Concord, CA 94520
    925-688-8000
    Email Us

For Water Emergencies

925-688-8095
7 a.m. – 3:30 p.m.
Monday – Friday
925-688-8374 
All other times

Call Us

Main Line925-688-8000
Customer Service925-688-8044
Water Quality Hotline925-688-8156
Conservation925-688-8320
Engineering Support925-688-8014
Public Affairs925-688-8109
Los Vaqueros Marina925-371-2628
Water Education925-688-8307