Cucamonga Valley Water District
The CVWD (Cucamonga Valley Water District), a special district and a public corporation, provides water for about 200,600 residents living in the City of Rancho Cucamonga, portions of the cities of Fontana, Ontario, and Upland and some unincorporated areas of San Bernardino County area. Established in 1955, the CVWD (Cucamonga Valley Water District) collects water from several sources including: 64% imported surface water from Northern California (State Water Project via Lloyd W. Michael Water Treatment Plant), 29% groundwater pumped from local aquifers (Cucamonga Basin and Chino Basin aquifers.), and 7% a combination of waters collected from canyons and tunnels along the local mountains (Cucamonga Canyon, Deer Canyon, Day Canyon, East Etiwanda Canyon, and a number of tunnels in the local San Gabriel Mountains).
Rancho Cucamonga Drinking Water Quality
Consumer Confidence Water Quality Reports
Under the authority of the Safe Drinking Water Act, the EPA requires Cucamonga 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 Rancho Cucamonga main water system here:
Contact Cucamonga Valley Water District Customer Service
Have a Question, Issue or Comment?
Main Customer Service
855-654-2893 (Mon–Fri, 7:30 AM–5:30 PM)
Emergency (24 hours - broken water main or pipeline, etc.)
Pay Your CVWD (Cucamonga Valley Water District) Bill
Already have an account?
If you already have an account, you just need to login to the CVWD (Cucamonga Valley Water District) site. CVWD (Cucamonga Valley Water District) 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 CVWD (Cucamonga Valley Water District) 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 Water Service
Starting Your Service
When you move to a new home in Rancho Cucamonga, you'll most likely already have running water, but you'll still need to set up water service with the CVWD (Cucamonga Valley Water District). Luckily, 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 Rancho Cucamonga, you'll need to stop your water service with the CVWD (Cucamonga Valley Water District), so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.