We read 10 results from Kingston (City) Water District’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 24,000 people · Water system ID NY5503374 · 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 30 homes tested · printed as 0.007 mg/L · sampled 2024 · Customer taps · 2025 report, page 3 | 7 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal35x the health goal |
| PFOA (a PFAS)single sample · Treated water · 2025 report, page 3 | 4.6 ppt | 0.007 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20291.2x the 4 ppt federal limit that takes effect in 2029; below the 10 ppt New York limitNot a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| PFOS (a PFAS)single sample · Treated water · 2025 report, page 3 | 4.3 ppt | 1 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20291.1x the 4 ppt federal limit that takes effect in 2029; below the 10 ppt New York limitNot a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| Chloridesingle sample · Treated water · 2025 report, page 3 | 4.2 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of 30 homes tested · sampled 2024 · Customer taps · 2025 report, page 3 | 0.04 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 13.1 to 22.8 · Distribution system · 2025 report, page 3 | 16.8 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 23.9 to 76.5 · Distribution system · 2025 report, page 3 | 49.1 ppb | None set | 80 ppb | Below the legal limit |
| Sulfatesingle sample · Treated water · 2025 report, page 3 | 6.2 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · Filter plant · 2025 report, page 3 | 0.41 NTU | None set | 1 NTU | Below the legal limit |
| Sodiumsingle sample · Treated water · 2025 report, page 3 | 2.8 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Kingston (City) Water District’s water between Jul 2024 and Apr 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA4.6 pptFound in 1 of 4 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFOS4.3 pptFound in 1 of 4 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing), PFOS (EPA testing)
What removes it: Reverse osmosis.
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