Golden State Water Company - Simi Valley

The Golden State Water Company (GSWC) - Simi Valley, a subsidiary of American States Water Company (AWR), provides water for about 43,670 residents living in the area of Simi Valley, California. Established in 1929, the Golden State Water Company - Simi Valley System is currently obtaining its supply of treated surface water purchased from the Calleguas Municipal Water District, which obtains its supply from Metropolitan Water District of Southern California. The primary water supply is also supplemented with groundwater from the Simi Valley Groundwater Basin.
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Simi Valley Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Golden State Water Company - Simi Valley 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 Golden State Water Company - Simi Valley Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
Simi Valley CSA
4680 E Los Angeles Avenue, Suite H
Simi Valley, 93063

800-999-4033 (Mon–Fri, 8:00 AM–5:00 PM)
customerservice@gswater.com

Emergency (24 hours - broken water main or pipeline, etc.)
800-999-4033

Pay Your Golden State Water - Simi Valley Bill

Already have an account?

If you already have an account, you just need to login to the Golden State Water - Simi Valley site. Golden State Water - Simi Valley 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 Golden State Water - Simi Valley 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 Simi Valley Water Service

Starting Your Service

When you move to a new home in Simi Valley, you'll most likely already have running water, but you'll still need to set up water service with the Golden State Water - Simi Valley. Luckily, Simi Valley 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 Simi Valley, you'll need to stop your water service with the Golden State Water - Simi Valley, 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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