We read 23 results from Worcester Dpwp, Water Supply Division’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 206,518 people · Water system ID MA2348000 · 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 89 homes tested, 0 over the action level · sampled 2023 · Customer taps (89 samples) · 2025 report, page 5 | 2 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal10x the health goal |
| Aluminumaverage · range 0.03 to 2.05 · Distribution system · 2025 report, page 5 | 0.05 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · Treatment plant · 2025 report, page 3 | 0.01 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideaverage · range 24.7 to 44.3 · Distribution system · 2025 report, page 5 | 35.3 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorinehighest running annual average · range 0.1 to 3.7 · Distribution system · 2025 report, page 4 | 1.05 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 89 homes tested, 1 over the action level · sampled 2023 · Customer taps (89 samples) · 2025 report, page 5 | 0.1 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 16 to 58 · Distribution system · 2025 report, page 4 | 41 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 17 to 92 · Distribution system · 2025 report, page 4 | 63 ppb | None set | 80 ppb | Below the legal limit |
| E. colias reported · Distribution system · 2025 report, page 4 | Not detected | 0 positive samples | 0 positive samples | Not detected |
| Fluoridehighest measured · Treatment plant · 2025 report, page 3 | 0.1 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironaverage · range 0.007 to 0.71 · Distribution system · 2025 report, page 5 | 0.09 ppm | — | 0.3 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · Treatment plant · 2025 report, page 3 | 0.29 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHaverage · range 6.99 to 8.59 · Distribution system · 2025 report, page 5 | 7.44 | — | — | Normal range |
| Sulfateaverage · range 8.2 to 20.2 · Distribution system · 2025 report, page 5 | 11.4 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · Water Filtration Plant · 2025 report, page 4 | 0.25 NTU | None set | 1 NTU | Below the legal limit |
| Alkalinityaverage · range 8.3 to 18.4 · Distribution system · 2025 report, page 5 | 13.1 ppm | None set | None | No health limit |
| Calciumaverage · range 7.71 to 19.5 · Distribution system · 2025 report, page 5 | 10 ppm | None set | None | No health limit |
| Hardnessaverage · range 1.28 to 3.23 · Distribution system · 2025 report, page 5 | 1.74 gpg (29.8 ppm) | — | — | Soft |
| PFAS (total of measured)highest measured · Treatment plant · 2025 report, page 3 | 3.3 ppt | None set | None | No health limit |
| PFHxA (a PFAS)highest measured · Treatment plant · 2025 report, page 3 | 4 ppt | None set | None | No health limit |
| PFPeA (a PFAS)average · range 1.4 to 3.2 · printed as 0.0023 ppb ppb · sampled 2023 · Treatment plant (UCMR 5) · 2025 report, page 3 | 2.3 ppt | None set | None | No health limit |
| Sodiumhighest measured · Treatment plant · 2025 report, page 3 | 18 ppm | None set | None | No health limit |
| Total organic carbonaverage · range 2.09 to 4.37 · Distribution system · 2025 report, page 5 | 2.7 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.
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