We read 9 results from California Water Service Co. - Palos Ver’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 71,452 people · Water system ID CA1910104 · 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 |
|---|---|---|---|---|
| Chloramineaverage · range 0.2 to 2.9 · Distribution system · 2025 report, page 13 | 2 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 13 | 0.3 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 7.6 to 17 · Distribution system · 2025 report, page 13 | 12 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 23 to 54 · Distribution system · 2025 report, page 13 | 37 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.24 to 0.74 · Distribution system · 2025 report, page 13 | 0.64 ppm | 1 ppm | 2 ppm | Below the health goal |
| Lead90th percentile of 30 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 13 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range ND to 0.41 · Distribution system · 2025 report, page 13 | Not detected | 10 ppm | 10 ppm | Not detected |
| Turbidity (cloudiness)average · range ND to 0.65 · Distribution system · 2025 report, page 13 | 0.18 NTU | None set | 1 NTU | Below the legal limit |
| NDMAaverage · range 2 to 7 · Distribution system · 2025 report, page 14 | 3.3 ppt | 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in California Water Service Co. - Palos Ver’s water between Jul 2023 and Jul 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium66.3 ppbFound in 4 of 4 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing in this report is above a health goal or legal limit. If you’re bothered by taste, smell, hardness or spots, or your home has older pipes, the filter catalog and buyer questions can help you pick, and a test of your own tap shows what your plumbing adds.
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