We read 11 results from Warminster Municipal Authority’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 40,000 people · Water system ID PA1090069 · 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 |
|---|---|---|---|---|
| Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 2 | 0.4 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.3x the health goal |
| Gross alpha (radioactivity)highest measured · listed as a violation in the report · sampled 2020 · Treated water · 2025 report, page 2 | 5.63 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| PFOA (a PFAS)highest measured · listed as a violation in the report · NWWA interconnections · 2025 report, page 2 | 2.58 ppt | 0.007 ppt | 14 ppt (Pennsylvania) now; 4 ppt from 2029 | Above the health goal369x the health goal |
| Total dissolved solidsas reported · Treated water · 2025 report, page 2 | 556 ppm | — | 500 ppm guideline | Above the guideline1.1x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.22 to 0.4 · listed as a violation in the report · sampled 2024 · Treated water · 2025 report, page 2 | 0.4 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorinehighest measured · range 0.42 to 1.77 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 1.77 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest running annual average · range 2 to 23.8 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 23.3 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 3.4 to 47.2 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 43.5 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range 2.03 to 2.41 · listed as a violation in the report · Treated water · 2025 report, page 2 | 2.41 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 14.5 to 22 · listed as a violation in the report · sampled 2021 · Treated water · 2025 report, page 2 | 22 ppm | — | 250 ppm guideline | Within the guideline |
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.
Copper
Found: Copper
What removes it: Reverse osmosis.
Radium and uranium
Found: Gross alpha (radioactivity)
What removes it: Reverse osmosis.
PFAS ("forever chemicals")
Found: PFOA (a PFAS)
What removes it: Reverse osmosis.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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