We read 10 results from North Reading Water Dept.’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 16,054 people · Water system ID MA3213000 · 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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 0 over the action level · 2025 report, page 6 | 1.7 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8.5x the health goal |
| Bariumsingle sample · Andover (source water) · 2025 report, page 5 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · printed as 62.7 ppb · 2025 report, page 6 | 0.06 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 5.6 to 14 · 2025 report, page 6 | 7.8 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 27 to 76 · 2025 report, page 6 | 61 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.08 to 0.88 · Andover (source water) · 2025 report, page 5 | 0.88 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)single sample · Andover (source water) · 2025 report, page 5 | 0.22 ppm | 10 ppm | 10 ppm | Below the health goal |
| Perchloratesingle sample · Andover (source water) · 2025 report, page 5 | 0.06 ppb | 1 ppb | 6 ppb | Below the health goal |
| PFAS (total of measured)highest running annual average · range ND to 3.44 · Andover (source water) · 2025 report, page 7 | 2.46 ppt | None set | None | No health limit |
| PFHxA (a PFAS)highest running annual average · range 3.03 to 3.63 · Andover (source water) · 2025 report, page 7 | 3.24 ppt | 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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