Rancho Cucamonga water and sewer rates
Who supplies water to Rancho Cucamonga houses, what it costs, and how the sewer charge works.
Cucamonga Valley Water District
Cucamonga Valley Water District: a monthly meter charge by meter size plus four tiers per HCF (tier allotments for a 3/4-inch meter: 6, 18 and 36 HCF a month), with IEUA and MWD pass-through charges.
| Use a month | Price per unit (CCF, 748 gallons) |
|---|---|
| Fixed charge | $33.66 a month |
| 0 to 6 units | $1.88 |
| 6 to 18 units | $2.33 |
| 18 to 36 units | $4.46 |
| 36 to more | $4.70 |
- Source
- In 2025, 51% of CVWD's water was groundwater from the Cucamonga and Chino basins, 41% was imported from Northern California through the State Water Project, and 8% was local canyon and tunnel water.
- Hardness
- Total hardness averaged 125.5 ppm as calcium carbonate (range 109 to 142) in the 2025 water quality report.
- Lead
- Lead at household taps (2024 sampling): 90th percentile 0.00 ppb, 0 of 50 samples over the action level.
Sewer
Cucamonga Valley Water District bills a flat monthly sewer charge per home: the CVWD local service charge ($7.81 from July 1, 2026) plus IEUA's sewer treatment charge ($29.45 from July 1, 2026).
Ways to pay less
- Free sprinkler upgrade (RISE program). CVWD's RISE program gives homeowners an outdoor water use evaluation and sprinkler improvements, such as a weather-based irrigation controller and high-efficiency nozzles, valued up to $1,000. Funding is limited. How: Sign up on CVWD's Programs and Rebates page.
Pay or manage it
Sources
- Cucamonga Valley Water District: rates
- CVWD Ordinance 2023-6-1 (sewer rates)
- CVWD 2022-2026 water rate study
- CVWD 2025 water quality report
Checked October 21, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.