We read 1 result from Cws - North Garden’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 22,762 people · Water system ID CA1510055 · 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 |
|---|---|---|---|---|
| Nitrate (as N)average · Groundwater · 2025 report, page 13 | 1.8 ppm | 10 ppm | 10 ppm | Below the health goal |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Cws - North Garden’s water between Nov 2024 and Dec 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOS4.6 pptFound in 2 of 22 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- Lithium18.9 ppbFound in 8 of 22 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.
PFAS ("forever chemicals")
Found: PFOS (EPA testing)
What removes it: Reverse osmosis.
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