We read 20 results from Webster Water Department’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 17,776 people · Water system ID MA2316000 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range ND to 1.5 · sampled 2024 · 2025 report, page 6 | 1.5 ppb | 0.004 ppb | 10 ppb | Above the health goal375x the health goal |
| Lead90th percentile of 30 homes tested, 0 over the action level · 2025 report, page 7 | 2.6 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal13x the health goal |
| PFOA (a PFAS)highest measured · range 2.54 to 3.56 · 2025 report, page 7 | 3.56 ppt | 0.007 ppt | 20 ppt (Massachusetts) now; 4 ppt from 2029 | Above the health goal509x the health goal |
| PFOS (a PFAS)highest measured · range 2.06 to 3.45 · 2025 report, page 7 | 3.45 ppt | 1 ppt | 20 ppt (Massachusetts) now; 4 ppt from 2029 | Above the health goal3.5x the health goal |
| Bariumas reported · sampled 2024 · 2025 report, page 6 | 0.0088 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideas reported · 2025 report, page 7 | 64.8 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 1.01 to 1.26 · 2025 report, page 6 | 1.14 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · 2025 report, page 7 | 0.07 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest measured · range 3.1 to 6.18 · 2025 report, page 6 | 6.18 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · range 11.8 to 19.7 · 2025 report, page 6 | 19.7 ppb | None set | 80 ppb | Below the legal limit |
| PFHxS (a PFAS)highest measured · range ND to 1.07 · 2025 report, page 7 | 1.07 ppt | None set | 20 ppt (Massachusetts) now; 10 ppt from 2029 | Below the legal limit |
| PFNA (a PFAS)highest measured · range ND to 0.86 · 2025 report, page 7 | 0.86 ppt | None set | 20 ppt (Massachusetts) now; 10 ppt from 2029 | Below the legal limit |
| pHas reported · 2025 report, page 7 | 7.8 | — | — | Normal range |
| Total dissolved solidsas reported · 2025 report, page 7 | 155 ppm | — | 500 ppm guideline | Within the guideline |
| Bromodichloromethanehighest measured · range 1.26 to 6.34 · 2025 report, page 7 | 6.34 ppb | None set | None | No health limit |
| Dibromochloromethaneas reported · 2025 report, page 7 | 1 ppb | None set | None | No health limit |
| PFAS (total of measured)highest measured · range 4.68 to 7.06 · 2025 report, page 6 | 7.06 ppt | None set | None | No health limit |
| PFBS (a PFAS)highest measured · range 1.68 to 2.45 · 2025 report, page 7 | 2.45 ppt | None set | None | No health limit |
| PFHxA (a PFAS)highest measured · range 0.77 to 1.24 · 2025 report, page 7 | 1.24 ppt | None set | None | No health limit |
| Sodiumas reported · 2025 report, page 7 | 30.8 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 Webster Water Department’s water between Apr 2023 and Nov 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA4.4 pptFound in 1 of 4 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing)
What removes it: Reverse osmosis.
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