Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Archived | 2025-04-01 → 2025-06-30 |
| MR | Monitoring | Archived | 2025-04-01 → 2025-06-30 |
| MR | Monitoring | Resolved | 2025-03-01 → 2025-03-31 |
| MR | Monitoring | Resolved | 2025-03-01 → 2025-03-31 |
| MR | Monitoring | Resolved | 2022-07-01 → 2022-07-31 |
| MR | Monitoring | Resolved | 2022-07-01 → 2022-07-31 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-04-30 |
| MR | Monitoring | Resolved | 2022-04-01 → 2022-04-30 |
| MR | Monitoring | Resolved | 2021-09-01 → 2021-09-30 |
| MR | Monitoring | Resolved | 2021-09-01 → 2021-09-30 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3995 µg/L 40% of the EPA limit 10000 µg/L
worst single sample: 4360 µg/L | 516/558 | SYR4 | 2012–2019 |
| Chloroform | 38.31 µg/L No EPA limit set
worst single sample: 55.4 µg/L | 379/379 | SYR4 | 2012–2019 |
| TTHM | 56.14 µg/L 70% of the EPA limit 80 µg/L
worst single sample: 76.4 µg/L | 303/303 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.63 µg/L No EPA limit set
worst single sample: 15.3 µg/L | 295/295 | SYR4 | 2012–2019 |
| Dibromochloromethane | 5.334 µg/L No EPA limit set
worst single sample: 9.05 µg/L | 294/294 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 21.145 µg/L 35% of the EPA limit 60 µg/L
worst single sample: 40.5 µg/L | 272/277 | SYR4 | 2012–2019 |
| Copper | 537.225 µg/L 41% of the EPA limit 1300 µg/L
worst single sample: 1200 µg/L | 152/152 | SYR4 | 2013–2019 |
| Bromate | 3.445 µg/L 34% of the EPA limit 10 µg/L
worst single sample: 3.8 µg/L | 92/92 | SYR4 | 2012–2019 |
| Bromoform | 1.5875 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 70/271 | SYR4 | 2012–2019 |
| Lead | 8.9 µg/L 59% of the EPA limit 15 µg/L
worst single sample: 10.6 µg/L | 42/152 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 23.4 µg/L No EPA limit set
worst single sample: 28.1 µg/L | 41/41 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 12.4 µg/L No EPA limit set
worst single sample: 12.5 µg/L | 41/41 | SYR4 | 2018–2019 |
| Barium | 450.2 µg/L 23% of the EPA limit 2000 µg/L
worst single sample: 508 µg/L | 33/35 | SYR4 | 2012–2019 |
| Lead | 0.0016 mg/L 11% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2025 |
| Combined Uranium | 13.7408 µg/L 46% of the EPA limit 30 µg/L
worst single sample: 14.0805 µg/L | 9/13 | SYR4 | 2014–2017 |
| Arsenic | 4.3 µg/L 43% of the EPA limit 10 µg/L
worst single sample: 5 µg/L | 8/35 | SYR4 | 2012–2019 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L | 8/35 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.3885 µg/L No EPA limit set
worst single sample: 1.45 µg/L | 4/41 | SYR4 | 2018–2019 |
| Atrazine | 0.2950 µg/L 9.8% of the EPA limit 3 µg/L
worst single sample: 0.3000 µg/L | 2/56 | SYR4 | 2012–2019 |
| Cyanide | 10 µg/L 5% of the EPA limit 200 µg/L | 2/35 | SYR4 | 2012–2019 |
| Lithium | 9.65 µg/L No EPA limit set | 2/16 | UCMR-5 | 2025 |
| Antimony, Total | 0.7000 µg/L 12% of the EPA limit 6 µg/L | 1/35 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 1.8 µg/L 30% of the EPA limit 6 µg/L | 1/53 | SYR4 | 2012–2019 |
79 contaminants tested, none detected
Utility contact
Frequently asked questions about North Wales Water Authority
Is North Wales Water Authority tap water safe to drink?
EPA monitoring detected 32 contaminants in North Wales Water Authority's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in North Wales Water Authority's water?
EPA monitoring detected Nitrate, Chloroform, TTHM, Bromodichloromethane, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does North Wales Water Authority serve?
North Wales Water Authority reports serving 72,496 people in Pennsylvania, per its EPA record.
Has North Wales Water Authority had any water quality violations?
The EPA has 430 violations on file for North Wales Water Authority, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.