We read 16 results from Aqua Pa Superior Main System’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 11,400 people · Water system ID PA1460085 · 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 |
|---|---|---|---|---|
| Arsenicaverage · range ND to 6.5 · 2025 report, page 2 | 3.1 ppb | 0.004 ppb | 10 ppb | Above the health goal775x the health goal |
| Gross alpha (radioactivity)average · range 6.2 to 11.1 · sampled 2024 · 2025 report, page 2 | 8 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| PFOA (a PFAS)highest measured · range ND to 11 · 2025 report, page 2 | 11 ppt | 0.007 ppt | 14 ppt (Pennsylvania) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20292.8x the 4 ppt federal limit that takes effect in 2029; below the 14 ppt Pennsylvania limitNot a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| PFOS (a PFAS)highest measured · range ND to 5.9 · 2025 report, page 2 | 5.9 ppt | 1 ppt | 18 ppt (Pennsylvania) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20291.5x the 4 ppt federal limit that takes effect in 2029; below the 18 ppt Pennsylvania limitNot a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| Uraniumaverage · range 1.7 to 9.9 · sampled 2024 · 2025 report, page 2 | 6.7 ppb | 0.6 ppb | 30 ppb | Above the health goal11x the health goal |
| Antimonyaverage · sampled 2024 · 2025 report, page 2 | 0.53 ppb | 1 ppb | 6 ppb | Below the health goal |
| Bariumaverage · range 0.07 to 0.3 · sampled 2024 · 2025 report, page 2 | 0.16 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloraminehighest monthly average · 2025 report, page 3 | 1.75 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)average · sampled 2024 · 2025 report, page 2 | 1.1 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of 35 homes tested, 0 over the action level · Customer taps · 2025 report, page 3 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanideaverage · sampled 2024 · 2025 report, page 2 | 31 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)average · range 1 to 16 · 2025 report, page 2 | 8 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range 7 to 90 · 2025 report, page 2 | 36 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · sampled 2024 · 2025 report, page 2 | 0.7 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of 35 homes tested, 0 over the action level · Customer taps · 2025 report, page 3 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range 1 to 2.4 · 2025 report, page 2 | 1.5 ppm | 10 ppm | 10 ppm | Below the health goal |
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 Aqua Pa Superior Main System’s water between May 2024 and Feb 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA11.8 pptFound in 8 of 18 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFOS5.8 pptFound in 6 of 18 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFBS5.9 pptFound in 9 of 18 samples · highest resultNo federal limit in force for this one
- Lithium45.4 ppbFound in 15 of 18 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
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.
Radium and uranium
Found: Gross alpha (radioactivity), Uranium
What removes it: Reverse osmosis.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing), PFOS (EPA testing)
What removes it: Reverse osmosis.
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