We read 16 results from Plattsburgh City’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 24,173 people · Water system ID NY0900217 · 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 |
|---|---|---|---|---|
| Gross alpha (radioactivity)single sample · Treated water · 2025 report | 0.2 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| PFOA (a PFAS)single sample · Treated water · 2025 report | 2.64 ppt | 0.007 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal377x the health goal |
| PFOS (a PFAS)single sample · Treated water · 2025 report | 1.81 ppt | 1 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal1.8x the health goal |
| Radium-228single sample · Treated water · 2025 report | 1.6 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal84x the health goal |
| Chloridesingle sample · Treated water · 2025 report | 15 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested · Customer taps · 2025 report | 0.14 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 21.8 to 39.9 · Location 4: Lake Forest · 2025 report | 31.1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 37.6 to 82.1 · Loc. 4: Lake Forest · 2025 report | 62.1 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridesingle sample · Treated water · 2025 report | 0.2 ppm | 1 ppm | 4 ppm | Below the health goal |
| PFNA (a PFAS)single sample · Treated water · 2025 report | 1.13 ppt | None set | 10 ppt from 2029 | Below the legal limit |
| Sulfatesingle sample · Treated water · 2025 report | 6.4 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · range 0.02 to 0.68 · Treated water · 2025 report | 0.68 NTU | None set | 1 NTU | Below the legal limit |
| PFBA (a PFAS)single sample · Treated water · 2025 report | 0.68 ppt | None set | None | No health limit |
| PFHpA (a PFAS)single sample · Treated water · 2025 report | 1.47 ppt | None set | None | No health limit |
| PFHxA (a PFAS)single sample · Treated water · 2025 report | 0.72 ppt | None set | None | No health limit |
| Sodiumsingle sample · Treated water · 2025 report | 9.8 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. 1 number we weren’t sure about is 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium-228
What removes it: Reverse osmosis.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
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