We read 11 results from La Verne, City WD’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 31,334 people · Water system ID CA1910062 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Lead90th percentile of 36 homes tested, 3 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 5 | 9 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal45x the health goal |
| Radium (combined 226 + 228)average · range ND to 0.06 · listed as a violation in the report · sampled 2018 · La Verne groundwater · 2025 report, page 5 | 0.01 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Tetrachloroethylene (PCE)average · range 0.5 to 0.6 · listed as a violation in the report · La Verne groundwater · 2025 report, page 5 | 0.5 ppb | 0.06 ppb | 5 ppb | Above the health goal8.3x the health goal |
| Total dissolved solidsaverage · range 460 to 670 · sampled 2024 · La Verne groundwater · 2025 report, page 5 | 547 ppm | — | 500 ppm guideline | Above the guideline1.1x the guideline (taste, odor or stains; not a health limit) |
| Uraniumaverage · range 5.22 to 9.09 · listed as a violation in the report · printed as 4.7 pCi/L · sampled 2024 · La Verne groundwater · 2025 report, page 5 | 7 ppb | 0.6 ppb | 30 ppb | Above the health goal12x the health goal |
| Chlorideaverage · range 39 to 70 · sampled 2024 · La Verne groundwater · 2025 report, page 5 | 57 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of 36 homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 5 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)as reported · range 16 to 48 · listed as a violation in the report · La Verne distribution · 2025 report, page 5 | 39 ppb | None set | 80 ppb | Below the legal limit |
| Sulfateaverage · range 76 to 120 · sampled 2024 · La Verne groundwater · 2025 report, page 5 | 102 ppm | — | 250 ppm guideline | Within the guideline |
| Hardnessaverage · range 17 to 26.3 · La Verne groundwater · 2025 report, page 6 | 20.6 gpg (352 ppm) | — | — | Very hard |
| Sodiumaverage · range 31 to 43 · La Verne groundwater · 2025 report, page 6 | 37.2 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 2 numbers we weren’t sure about are held back until a person checks.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Radium and uranium
Found: Radium (combined 226 + 228), Uranium
What removes it: Reverse osmosis.
Industrial chemicals and pesticides
Found: Tetrachloroethylene (PCE)
What removes it: Carbon block or RO.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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