District Information


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Customer Center
2524 Townsgate Road, Suite A
Westlake Village, CA 91361
8:30 AM to 12:00 PM and 1:00 PM 5:00 PM
(805) 497-2757
Contact us via email
After-Hours Phone Number
(805) 497-2757
Automated Payment Number
(866) 734-0743
Payment Mailing Address
California Water Service
P.O. Box 4500
Whittier, CA 90607-4500
District Manager
Doug Varney
Due to COVID-19, all Cal Water Customer Center lobbies are closed to walk-in traffic. Westlake phone service is scheduled to be available at 8:30 AM today.

If you have a water-related emergency, please contact Cal Water using the Westlake after-hours phone number.

Serving a portion of Thousand Oaks

Cal Water's Westlake District was formed in 1983 with the purchase of the Westlake Water Company. To meet the needs of our customers, we purchase imported surface water from the Metropolitan Water District of Southern California (MWD) through Calleguas Municipal Water District. Our system includes 105 miles of pipeline, six storage tanks, and 23 booster pumps. We proactively maintain and upgrade our facilities to ensure a reliable, high-quality supply.

Closest Western Union Pay Stations
BusinessAddressCityZIP Code
Pavilions #22151135 Lindero Canyon RdThousand Oaks91362
Vons #31352725 Agoura RdThousand Oaks91361