Addresses and Hours
Physical Address:
Contra Costa Water District
1331 Concord Avenue
Concord, CA 94520
Lobby Hours:
8:00 am to 5:00 pm
Monday – Friday
(except holidays)
Customer Service Hours:
7:30 am to 5:00 pm
Monday – Friday
(except holidays)
Mailing Address:
Contra Costa Water District
P.O. Box H20
Concord, CA 94524