California American Water Company

The California American Water Company – Thousand Oaks District, a subsidiary of American Water (NYSE: AWK), provides water for about 69,828 residents living in the area of Thousand Oaks and Newbury Park, California. Established in 1886, the California American Water Company currently obtains its supply via purchase from the Calleguas Municipal Water District, an authorized wholesaler of treated surface water received from the Metropolitan Water District of Southern California’s Jensen Treatment Plant. This water comes from the Sacramento River Delta and conveyed to Southern California via the California Aqueduct (also known as the State Water Project).
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Thousand Oaks Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires California American Water Company to assess local water quality each year and distribute a Consumer Confidence Water Quality Report. At WaterZen, we review these reports and make the information available, in a concise, straightforward, and easy-to-understand way.

Contact California American Water Company Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
2439 West Hillcrest Drive
Newbury Park, 91320

805-498-1266 (Mon–Fri, 8:30 AM–4:00 PM)
No email provided. Please visit the contact form.

Emergency (24 hours - broken water main or pipeline, etc.)

Pay Your Cal Am Water - Thousand Oaks Bill

Already have an account?

If you already have an account, you just need to login to the Cal Am Water - Thousand Oaks site. Cal Am Water - Thousand Oaks accepts credit cards, debit, and direct deposit. Click here to login.

Want to create a new account?

You can create a new account on the Cal Am Water - Thousand Oaks website. Once you create the account, you can setup payment with credit, debit, or direct deposit. Click here to create an account.

Want to pay without an account?

You can make a one-time payment without creating an account. You will need to have your credit or debit card in order to make the one time payment. Click here to make a one time payment.

How to Start Thousand Oaks Water Service

Starting Your Service

When you move to a new home in Thousand Oaks, you'll most likely already have running water, but you'll still need to set up water service with the Cal Am Water - Thousand Oaks. Luckily, Thousand Oaks has made it pretty simple with the following online form. Starting service generally takes just two business days.

Click here to fill out a Start Service Form.

Stopping Your Service

When you move out of a home in Thousand Oaks, you'll need to stop your water service with the Cal Am Water - Thousand Oaks, so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.

Click here to fill out a Stop Service Form.

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