Customer Service

Contact Us

  1. Contra Costa Water District Center
    1331 Concord Avenue
    Concord, CA 94520
    Directions

    Phone: 925-688-8000
    Phone: 925-688-8044 (Customer Service 7:30 a.m. to 5 p.m.)
    Send us an e-mail 


    Hours
    Monday - Friday
    8 a.m. - 5 p.m.