The City of Antioch Water provides water for about 113,061 residents living in the Antioch area. Established in 1849, the Antioch City Water Department collects water from surface water sources by purchase of untreated water from Contra Costa Water District (CCWD), which is surface water from the Sacramento-San Joaquin River Delta, treats it in a City-owned treatment plant and delivers it to customers through the City’s distribution pipes. The City is also able to pump directly from the San Joaquin River or purchase treated water from CCWD.

Antioch City Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Antioch City Water Department 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.

B+

Good

WaterZen Rating

Lead and copper levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

What about City of Antioch Water? How much lead and copper are in your drinking water? And how do those levels compare to other cities in the state? We examined data from hundreds of cities across the nation to understand and grade your water quality.

As you can see, City of Antioch Water received an above-average grade because the amounts of contaminants found in the water supply were lower than most other water providers we've analyzed.

B+

Good

WaterZen Rating

Lead and copper levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

As you can see, City of Antioch Water received an above-average grade because the amounts of contaminants found in the water supply were lower than most other water providers we've analyzed.

Contact Antioch City Water Department Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
Po Box 5007
Antioch, California 94531

925-779-6950
No email provided. Please visit the contact form. https://www.antiochca.gov/comment-forms/public-works/

Emergency (24 hours - broken water main or pipeline, etc.)
925-779-6950

Pay Your City of Antioch Water Bill

Already have an account?

If you already have an account, you just need to login to the City of Antioch Water site. City of Antioch Water 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 City of Antioch Water 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 Antioch Water Service

Starting Your Service

When you move to a new home in Antioch City, you'll most likely already have running water, but you'll still need to set up water service with the City of Antioch Water. Luckily, Antioch 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 Antioch City, you'll need to stop your water service with the City of Antioch Water, 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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