Walnut Valley Water District
The Walnut Valley Water District provides water for about 104,058 residents living in the Walnut area. Established in 1952, the Walnut Valley Water District purchases imported surface water through the wholesale water agency, Three Valleys Municipal Water District (TVMWD). TVMWD’s supply is from Metropolitan Water District (MWD) through the Colorado River Aqueduct (from Colorado River basin) and the State Water Project (from Sacramento-San Joaquin Delta).
Walnut Drinking Water Quality
Consumer Confidence Water Quality Reports
Under the authority of the Safe Drinking Water Act, the EPA requires Walnut Valley Water District to assess local water quality each year and distribute a Consumer Confidence Water Quality Report.
The information in this report includes the source of your water, whether your water meets EPA standards, detailed tables of detected contaminants, detailed descriptions of those contaminants, possible reasons why they're present, and potential health effects (if any).
Read the Consumer Confidence Report for Walnut main water system here:
Contact Walnut Valley Water District Customer Service
Have a Question, Issue or Comment?
Main Customer Service
909-595-7554 (Mon–Fri, 7:00 AM–5:00 PM)
Emergency (24 hours - broken water main or pipeline, etc.)
Pay Your Walnut Valley Water Bill
Already have an account?
If you already have an account, you just need to login to the Walnut Valley Water site. Walnut Valley 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 Walnut Valley 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 Walnut City Water Service
Starting Your Service
When you move to a new home in Walnut, you'll most likely already have running water, but you'll still need to set up water service with the Walnut Valley Water. Luckily, Walnut City has made it pretty simple with the following online form. Starting service generally takes just two business days.
Stopping Your Service
When you move out of a home in Walnut, you'll need to stop your water service with the Walnut Valley Water, so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.