California Water Service - San Carlos

The California Water Service - Bayshore District provides water for about 29,554 residents living in the San Carlos area, California. Established in 1931, the California Water Service – Bayshore District currently obtains its supply via purchased from the City and County of San Francisco (SFPUC), which uses surface water from the Hetch Hetchy watershed.
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San Carlos Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires California Water Service - San Carlos 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.

Lead Report (2018)

A

WaterZen Rating

Lead 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 CalWater - San Carlos? How much lead is 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, CalWater - San Carlos received the best-possible grade because the amounts of contaminants found in the water supply were better than the Public Health Goal and most other water providers we've analyzed.

Lead Report (2018)

A

WaterZen Rating

Lead 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 CalWater - San Carlos? How much lead is 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, CalWater - San Carlos received the best-possible grade because the amounts of contaminants found in the water supply were better than the Public Health Goal and most other water providers we've analyzed.

Contact California Water Service - San Carlos Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
341 North Delaware Street
San Mateo, California 94401

650-558-7800
No email provided. Please visit the contact form. https://www.calwater.com/contact-us/bay/

Emergency (24 hours - broken water main or pipeline, etc.)
650-558-7800

Pay Your CalWater - San Carlos Bill

Already have an account?

If you already have an account, you just need to login to the CalWater - San Carlos site. CalWater - San Carlos 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 CalWater - San Carlos 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 San Carlos Water Service

Starting Your Service

When you move to a new home in San Carlos, you'll most likely already have running water, but you'll still need to set up water service with the CalWater - San Carlos. Luckily, San Carlos 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 San Carlos, you'll need to stop your water service with the CalWater - San Carlos, 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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