What was found in North Wales's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 8330 µg/L 83% of the EPA limit 10000 µg/L | 6/6 | SYR4 |
| Copper | 3320 µg/L 255% of the EPA limit, in the worst sample — 1300 µg/L | 6/6 | SYR4 |
| Barium | 1050 µg/L 53% of the EPA limit 2000 µg/L | 6/6 | SYR4 |
| Nitrite | 110 µg/L 11% of the EPA limit 1000 µg/L | 1/6 | SYR4 |
| Lead | 100 µg/L 667% of the EPA limit, in the worst sample — 15 µg/L | 6/6 | SYR4 |
| TTHM | 74.4 µg/L 93% of the EPA limit 80 µg/L | 6/6 | SYR4 |
| Chloroform | 58.2 µg/L No EPA limit set | 6/6 | SYR4 |
| Combined Uranium | 51.84902 µg/L 173% of the EPA limit, in the worst sample — 30 µg/L | 4/6 | SYR4 |
| Arsenic | 36.4 µg/L 364% of the EPA limit, in the worst sample — 10 µg/L | 6/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26.2 µg/L 44% of the EPA limit 60 µg/L | 6/6 | SYR4 |
| Xylenes, Total | 21.74 µg/L 0.2% of the EPA limit 10000 µg/L | 1/6 | SYR4 |
| Lithium | 20.6 µg/L No EPA limit set | 1/6 | UCMR-5 |
| Chromium | 19.1 µg/L 19% of the EPA limit 100 µg/L | 6/6 | SYR4 |
| Bromodichloromethane | 17.1 µg/L No EPA limit set | 6/6 | SYR4 |
| Dichloroacetic Acid | 16.2 µg/L No EPA limit set | 2/6 | SYR4 |
| Dibromochloromethane | 12.2 µg/L No EPA limit set | 6/6 | SYR4 |
| Trichloroacetic Acid | 10.6 µg/L No EPA limit set | 4/6 | SYR4 |
| Bromoform | 8 µg/L No EPA limit set | 6/6 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 5.32 µg/L 89% of the EPA limit 6 µg/L | 2/6 | SYR4 |
| Toluene | 3.76 µg/L 0.4% of the EPA limit 1000 µg/L | 1/6 | SYR4 |
| Selenium | 3.5 µg/L 7% of the EPA limit 50 µg/L | 6/6 | SYR4 |
| Ethylbenzene | 2.9 µg/L 0.4% of the EPA limit 700 µg/L | 1/6 | SYR4 |
| Dibromoacetic Acid | 2.12 µg/L No EPA limit set | 2/6 | SYR4 |
| Antimony, Total | 2 µg/L 33% of the EPA limit 6 µg/L | 2/6 | SYR4 |
| Tetrachloroethylene | 0.9000 µg/L 18% of the EPA limit 5 µg/L | 1/6 | SYR4 |
| 1,1-Dichloroethylene | 0.3200 µg/L 4.6% of the EPA limit 7 µg/L | 1/6 | SYR4 |
| cis-1,2-Dichloroethylene | 0.1300 µg/L 0.2% of the EPA limit 70 µg/L | 1/6 | SYR4 |
| Benzo(A)Pyrene | 0.1200 µg/L 60% of the EPA limit 0.2000 µg/L | 1/6 | SYR4 |
| Carbon Tetrachloride | 0.1100 µg/L 2.2% of the EPA limit 5 µg/L | 1/6 | SYR4 |
| Heptachlor | 0.1100 µg/L 27% of the EPA limit 0.4000 µg/L | 1/6 | SYR4 |
| Thallium, Total | 0.0700 µg/L 3.5% of the EPA limit 2 µg/L | 1/6 | SYR4 |
| Mercury | 0.0430 µg/L 2.2% of the EPA limit 2 µg/L | 2/6 | SYR4 |
| Lead | 0.0302 mg/L 201% above the EPA limit of 0.0150 mg/L | 6/6 | LCR |
| Pfba | 0.0070 µg/L No EPA limit set | 1/6 | UCMR-5 |
Water suppliers serving North Wales
| Supplier | Population served |
|---|---|
| NWWA WARRINGTON TOWNSHIP | 21,588 |
| NWWA OLDE COLONIAL GREENE | 900 |
| NWWA PINE RUN | 700 |
| NWWA DURHAM VILLAGE | 160 |
| NWWA YORKSHIRE MEADOWS | 90 |
| NWWA HERMITAGE | 75 |
Frequently asked questions about North Wales tap water
Is North Wales tap water safe to drink?
EPA testing detected 34 contaminants in the water serving North Wales. 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 North Wales?
6 public water suppliers report drinking-water monitoring for North Wales, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in North Wales's water?
The contaminants EPA monitoring detected in North Wales include Nitrate, Copper, Barium, Nitrite, Lead. The full list, with the highest level found 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.