What was found in Warrington's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2925 µg/L 29% of the EPA limit 10000 µg/L Highest in the city: NESHAMINY MANOR CENTER · 2,100 people · 2019 | 5/6 | SYR4 |
| Copper | 241.8 µg/L 19% of the EPA limit 1300 µg/L Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019
Highest in the city: 2096 µg/L — NESHAMINY MANOR CENTER · 2,100 people · 2019 | 6/6 | SYR4 |
| Barium | 614.2 µg/L 31% of the EPA limit 2000 µg/L Highest in the city: BCWSA NEW HOPE · 3,017 people · 2019 | 5/6 | SYR4 |
| Fluoride | 180 µg/L 4.5% of the EPA limit 4000 µg/L Highest in the city: NESHAMINY MANOR CENTER · 2,100 people · 2018 | 1/6 | SYR4 |
| TTHM | 73.035 µg/L 91% of the EPA limit 80 µg/L Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 6/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 61.78 µg/L 103% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 5/6 | SYR4 |
| Chloroform | 58.885 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 6/6 | SYR4 |
| Trichloroacetic Acid | 28.23 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 4/6 | SYR4 |
| Combined Uranium | 23.8542 µg/L 80% of the EPA limit 30 µg/L Highest in the city: BCWSA SOLEBURY · 2,100 people · 2019 | 5/6 | SYR4 |
| Lead | 15.35 µg/L 102% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019
Highest in the city: 17.05 µg/L — NWWA INGHAM MEWS · 97 people · 2019 | 5/6 | SYR4 |
| Dichloroacetic Acid | 17 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 4/6 | SYR4 |
| Bromodichloromethane | 15.085 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019 | 6/6 | SYR4 |
| Arsenic | 13 µg/L 130% of the EPA limit, at the 95th percentile of samples — 10 µg/L Highest in the city: BCWSA SOLEBURY · 2,100 people · 2019 | 5/6 | SYR4 |
| Nitrite | 7.65 µg/L 0.8% of the EPA limit 1000 µg/L Highest in the city: NESHAMINY MANOR CENTER · 2,100 people · 2019 | 1/6 | SYR4 |
| Dibromochloromethane | 3.56 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019
Highest in the city: 7.075 µg/L — BCWSA NEW HOPE · 3,017 people · 2019 | 6/6 | SYR4 |
| Selenium | 6.9 µg/L 14% of the EPA limit 50 µg/L Highest in the city: NWWA INGHAM MEWS · 97 people · 2018 | 1/6 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.75 µg/L 79% of the EPA limit 6 µg/L Highest in the city: NWWA INGHAM MEWS · 97 people · 2019 | 1/6 | SYR4 |
| Tetrachloroethylene | 3.64 µg/L 73% of the EPA limit 5 µg/L Highest in the city: NESHAMINY MANOR CENTER · 2,100 people · 2019 | 2/6 | SYR4 |
| Bromoform | 0.6900 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019
Highest in the city: 3.04 µg/L — NESHAMINY MANOR CENTER · 2,100 people · 2019 | 5/6 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2019
Highest in the city: 2.612 µg/L — BCWSA NEW HOPE · 3,017 people · 2019 | 5/6 | SYR4 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L Highest in the city: BCWSA FOX RUN PRESERVE · 220 people · 2018 | 3/6 | SYR4 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the city: BCWSA NEW HOPE · 3,017 people · 2019 | 1/6 | SYR4 |
| Carbon Tetrachloride | 0.2000 µg/L 4% of the EPA limit 5 µg/L Highest in the city: BCWSA NEW HOPE · 3,017 people · 2019 | 1/6 | SYR4 |
| Ethylbenzene | 0.1000 µg/L 0% of the EPA limit 700 µg/L Highest in the city: BCWSA NEW HOPE · 3,017 people · 2019 | 1/6 | SYR4 |
| Trichloroethylene | 0.1000 µg/L 2% of the EPA limit 5 µg/L Highest in the city: BCWSA NEW HOPE · 3,017 people · 2019 | 1/6 | SYR4 |
| Pfpea | 0.0190 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| Pfhxa | 0.0115 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| Pfba | 0.0075 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| PFOA | 0.0073 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2025
Highest in the city: 0.0070 mg/L — NESHAMINY MANOR CENTER · 2,100 people · 1996 | 5/6 | LCR |
| PFOS | 0.0069 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| PFBS | 0.0056 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| PFHXS | 0.0048 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
| Pfhpa | 0.0032 µg/L No EPA limit set Main supplier: BCWSA MAIN LOWER SOUTH · 52,621 people · 2024 | 1/6 | UCMR-5 |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Warrington
| Supplier | Population served |
|---|---|
| BCWSA MAIN LOWER SOUTH | 52,621 |
| BCWSA NEW HOPE | 3,017 |
| NESHAMINY MANOR CENTER | 2,100 |
| BCWSA SOLEBURY | 2,100 |
| BCWSA FOX RUN PRESERVE | 220 |
| NWWA INGHAM MEWS | 97 |
Frequently asked questions about Warrington tap water
Is Warrington tap water safe to drink?
EPA testing detected 34 contaminants in the water serving Warrington. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Warrington?
6 public water suppliers report drinking-water monitoring for Warrington, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in Warrington's water?
The contaminants EPA monitoring detected in Warrington include Nitrate, Copper, Barium, Fluoride, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.