We read 9 results from Bethpage WD’s 2025 water quality report. 1 result over a legal limit.
Serves about 33,000 people · Water system ID NY2902817 · 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 |
|---|---|---|---|---|
| Perchloratehighest measured · range ND to 8.8 · listed as a violation in the report · Wells · 2025 report, page 3 | 8.8 ppb | 1 ppb | 6 ppb | Over the legal limit1.5x the legal limit |
| Bariumhighest measured · range ND to 0.005 · listed as a violation in the report · Wells · 2025 report, page 3 | 0.005 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 8.7 to 20.9 · listed as a violation in the report · Wells · 2025 report, page 3 | 20.9 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorinehighest measured · range 0.59 to 0.91 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 0.91 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 33 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 3 | 0.04 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest measured · range ND to 2 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 2 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 33 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 3 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range ND to 6.6 · listed as a violation in the report · Wells · 2025 report, page 3 | 6.6 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sodiumhighest measured · range 7.1 to 13.6 · listed as a violation in the report · Wells · 2025 report, page 3 | 13.6 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Bethpage WD’s water between Feb 2023 and Jul 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFBS3.5 pptFound in 1 of 10 samples · highest resultNo federal limit in force for this one
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.
Industrial chemicals and pesticides
Found: Perchlorate
What removes it: Carbon block or RO.
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