We read 2 results from Ventura Water Department’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 113,500 people · Water system ID CA5610017 · 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 |
|---|---|---|---|---|
| Copper90th percentile of 57 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 6 | 0.33 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.1x the health goal |
| Lead90th percentile of 57 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 6 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
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 Ventura Water Department’s water between Jan 2023 and Oct 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFHxS3 pptFound in 1 of 12 samples · highest resultNo federal limit in force for this one
- PFBS3.1 pptFound in 1 of 12 samples · highest resultNo federal limit in force for this one
- Lithium140 ppbFound in 12 of 12 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 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.
Copper
Found: Copper
What removes it: Reverse osmosis.
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