We read 10 results from Scarsdale Water Department’s 2024 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 21,649 people · Water system ID NY5903457 · Read the district’s 2024 report (opens in a new tab)
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Results from the 2024 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 |
|---|---|---|---|---|
| Copper90th percentile of 30 homes tested, 0 over the action level · printed as 316 ug/L · Customer taps · 2024 report, page 4 | 0.32 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.1x the health goal |
| Gross alpha (radioactivity)single sample · sampled 2021 · Entry point - Reeves Newsom Pump Station · 2024 report, page 4 | 0.44 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of 30 homes tested, 0 over the action level · Customer taps · 2024 report, page 4 | 2.9 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal14x the health goal |
| Radium (combined 226 + 228)single sample · sampled 2021 · Entry point - Reeves Newsom Pump Station · 2024 report, page 4 | 0.2 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Chlorineaverage · range 0.58 to 1.83 · Entry point - Reeves Newsom Pump Station, highest of 2 sources · 2024 report, page 3 | 1.22 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest running annual average · range 26 to 48 · Distribution system · 2024 report, page 4 | 42.5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 16 to 47 · Distribution system · 2024 report, page 4 | 37.5 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.29 to 0.97 · Entry point - Reeves Newsom Pump Station · 2024 report, page 3 | 0.73 ppm | 1 ppm | 4 ppm | Below the health goal |
| Sulfateaverage · Entry point - Reeves Newsom Pump Station, highest of 2 sources · 2024 report, page 3 | 3.3 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)average · range 0.47 to 1.3 · Entry point - Ardsley Road Pump Station · 2024 report, page 4 | 0.84 NTU | None set | 1 NTU | Below the legal 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: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
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