We read 28 results from South Huntington Water District’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 81,760 people · Water system ID NY5103263 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 |
|---|---|---|---|---|
| Chromium-6highest measured · range ND to 7.3 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 7.3 ppb | 0.02 ppb | 10 ppb | Above the health goal365x the health goal |
| Gross alpha (radioactivity)single sample · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 0.16 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of 31 homes tested, 1 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 3 | 1.3 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal6.5x the health goal |
| PFOS (a PFAS)highest measured · range ND to 2.47 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 2.47 ppt | 1 ppt | 10 ppt (New York) now; 4 ppt from 2029 | Above the health goal2.5x the health goal |
| Radium (combined 226 + 228)highest measured · range 0.18 to 1.4 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 1.4 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Tetrachloroethylene (PCE)highest measured · range ND to 0.54 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.54 ppb | 0.06 ppb | 5 ppb | Above the health goal9x the health goal |
| 1,1-Dichloroethylenehighest measured · range ND to 0.97 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.97 ppb | 7 ppb | 7 ppb | Below the health goal |
| Bariumhighest measured · range ND to 0.03 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 4.3 to 47.9 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 47.9 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorinehighest measured · range 1 to 1.5 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 1.5 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)highest measured · range ND to 7.2 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 7.2 ppb | None set | 100 ppb | Below the legal limit |
| cis-1,2-Dichloroethylenehighest measured · range ND to 4.4 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 4.4 ppb | 70 ppb | 70 ppb | Below the health goal |
| Copper90th percentile of 31 homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 3 | 0.2 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanidehighest measured · range ND to 11.5 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 11.5 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (TTHM)highest measured · range ND to 8.9 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 8.9 ppb | None set | 80 ppb | Below the legal limit |
| Ironhighest measured · range ND to 0.06 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.06 ppm | — | 0.3 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.42 to 7.9 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 7.9 ppm | 10 ppm | 10 ppm | Below the health goal |
| Nitrite (as N)highest measured · range ND to 0.09 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.09 ppm | 1 ppm | 1 ppm | Below the health goal |
| PFHxS (a PFAS)highest measured · range ND to 2.21 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 2.21 ppt | None set | 10 ppt from 2029 | Below the legal limit |
| Sulfatehighest measured · range ND to 8.5 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 8.5 ppm | — | 250 ppm guideline | Within the guideline |
| Trichloroethylene (TCE)highest measured · range ND to 1.7 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 1.7 ppb | 1.7 ppb | 5 ppb | Below the health goal |
| Zinchighest measured · range ND to 0.05 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 0.05 ppm | — | 5 ppm guideline | Within the guideline |
| 1,4-Dioxanehighest measured · range ND to 0.96 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 0.96 ppb | None set | None | No health limit |
| Chloratehighest measured · range ND to 71.7 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 71.7 ppb | None set | None | No health limit |
| Hardnesshighest measured · range 0.16 to 3.19 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 3.19 gpg (54.6 ppm) | — | — | Soft |
| PFBA (a PFAS)highest measured · range ND to 6.44 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 6.44 ppt | None set | None | No health limit |
| PFPeA (a PFAS)highest measured · range ND to 3.59 · listed as a violation in the report · Wells (entry points) · 2025 report, page 4 | 3.59 ppt | None set | None | No health limit |
| Sodiumhighest measured · range 2.9 to 21.9 · listed as a violation in the report · Wells (entry points) · 2025 report, page 3 | 21.9 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOS (a PFAS)
What removes it: Reverse osmosis.
Industrial chemicals and pesticides
Found: Tetrachloroethylene (PCE)
What removes it: Carbon block or RO.
More districts: New York water quality · All states · Something look wrong? Tell us