We read 12 results from Ecwa Lancaster’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 21,428 people · Water system ID NY1400421 · 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 |
|---|---|---|---|---|
| PFOA (a PFAS)average · range ND to 2.62 · ECWA treated water · 2025 report, page 2 | 2.62 ppt | 0.007 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal374x the health goal |
| PFOS (a PFAS)average · range ND to 2.61 · ECWA treated water · 2025 report, page 2 | 2.61 ppt | 1 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal2.6x the health goal |
| Bariumaverage · range 0.02 to 0.02 · ECWA treated water · 2025 report, page 2 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideaverage · range 15.6 to 27.7 · ECWA treated water · 2025 report, page 2 | 19.4 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.82 to 1.8 · Distribution system · 2025 report, page 2 | 1.62 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest running annual average · range 7.33 to 50.3 · Distribution system · 2025 report, page 2 | 31 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 15.7 to 66.1 · Distribution system · 2025 report, page 2 | 48 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.54 to 0.91 · ECWA treated water · 2025 report, page 2 | 0.67 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)average · range 0.1 to 0.11 · ECWA treated water · 2025 report, page 2 | 0.11 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)average · range 0.06 to 1.28 · Distribution system, highest of 2 sources · 2025 report, page 2 | 0.22 NTU | None set | 1 NTU | Below the legal limit |
| Nickelaverage · range 0.69 to 0.72 · ECWA treated water · 2025 report, page 2 | 0.71 ppb | None set | None | No health limit |
| Total organic carbonaverage · range 1.48 to 2.06 · ECWA treated water · 2025 report, page 2 | 1.74 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. 2 numbers we weren’t sure about are 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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
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