We read 13 results from Cortlandt Consolidated WD’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 28,369 people · Water system ID NY5903423 · 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, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 7 | 1.4 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal7x the health goal |
| PFOA (a PFAS)single sample · listed as a violation in the report · Amawalk (Yorktown) · 2025 report, page 4 | 6.7 ppt | 0.007 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20291.7x 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 · listed as a violation in the report · Amawalk (Yorktown) · 2025 report, page 4 | 3.2 ppt | 1 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal3.2x the health goal |
| Bariumaverage · range 0.0074 to 0.04 · listed as a violation in the report · Yorktown (Amawalk/Catskill), highest of 2 sources · 2025 report, page 5 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideaverage · range 18.1 to 130 · listed as a violation in the report · Yorktown (Amawalk/Catskill), highest of 2 sources · 2025 report, page 5 | 74.1 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.08 to 1.6 · listed as a violation in the report · Cortlandt distribution · 2025 report, page 7 | 1.08 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 7 | 0.06 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 10.8 to 29.5 · listed as a violation in the report · Cortlandt distribution · 2025 report, page 7 | 22.8 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 7.1 to 68.5 · listed as a violation in the report · Cortlandt distribution · 2025 report, page 7 | 47.1 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)average · range 0.07 to 0.23 · listed as a violation in the report · Yorktown (Amawalk/Catskill), highest of 2 sources · 2025 report, page 5 | 0.15 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfateaverage · range ND to 11 · listed as a violation in the report · Yorktown (Amawalk/Catskill) · 2025 report, page 5 | 8 ppm | — | 250 ppm guideline | Within the guideline |
| Hardnessaverage · range 0.73 to 7.02 · listed as a violation in the report · Yorktown (Amawalk/Catskill), highest of 2 sources · 2025 report, page 5 | 2.96 gpg (50.6 ppm) | — | — | Soft |
| Sodiumaverage · range 10.5 to 66.7 · listed as a violation in the report · sampled 2024 · Yorktown (Amawalk/Catskill), highest of 2 sources · 2025 report, page 5 | 38.6 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.
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)
What removes it: Reverse osmosis.
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