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.
14
health-based violations
2,898
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-12-31 |
| TT | Health-based | Resolved | 1994-01-01 → 1994-01-01 |
| TT | Health-based | Resolved | 1994-01-01 → 1994-01-01 |
| TT | Health-based | Resolved | 1994-01-01 → 1994-01-01 |
| MCL | Health-based | Resolved | 1993-08-01 → 1993-08-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfhxa | 0.0122 µg/L | 18/20 | 2025 |
| Pfpea | 0.0140 µg/L | 18/20 | 2025 |
| PFBS | 0.0092 µg/L | 17/20 | 2025 |
| Pfhpa | 0.0090 µg/L | 16/20 | 2025 |
| PFOA | 0.0153 µg/L | 16/20 | 2025 |
| PFOS | 0.0137 µg/L | 16/20 | 2025 |
| Pfba | 0.0106 µg/L | 15/20 | 2025 |
| PFHXS | 0.0050 µg/L | 12/20 | 2025 |
| PFNA | 0.0135 µg/L | 3/20 | 2025 |
| 6:2 Fts | 0.0060 µg/L | 1/20 | 2025 |
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3590 µg/L 36% of the EPA limit 10000 µg/L
worst single sample: 6850 µg/L | 180/190 | SYR4 | 2012–2019 |
| Dibromochloromethane | 10.375 µg/L No EPA limit set
worst single sample: 16.6 µg/L | 126/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 6.905 µg/L No EPA limit set
worst single sample: 11.7 µg/L | 118/128 | SYR4 | 2012–2019 |
| TTHM | 25.745 µg/L 32% of the EPA limit 80 µg/L
worst single sample: 37.5 µg/L | 118/128 | SYR4 | 2012–2019 |
| Bromoform | 6.085 µg/L No EPA limit set
worst single sample: 8.9 µg/L | 102/128 | SYR4 | 2012–2019 |
| Copper | 470 µg/L 36% of the EPA limit 1300 µg/L
worst single sample: 620 µg/L | 95/95 | SYR4 | 2013–2019 |
| Chloroform | 4.34 µg/L No EPA limit set
worst single sample: 17.2 µg/L | 85/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 6.75 µg/L 11% of the EPA limit 60 µg/L
worst single sample: 18.3 µg/L | 78/128 | SYR4 | 2012–2019 |
| Barium | 377.5 µg/L 19% of the EPA limit 2000 µg/L
worst single sample: 420 µg/L | 30/30 | SYR4 | 2012–2018 |
| 1,1-Dichloroethylene | 0.8320 µg/L 12% of the EPA limit 7 µg/L
worst single sample: 0.8600 µg/L | 15/205 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.16 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 14/20 | SYR4 | 2018–2019 |
| Lithium | 22.4 µg/L No EPA limit set | 14/20 | UCMR-5 | 2025 |
| Lead | 0.0023 mg/L 15% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2025 |
| Chromium | 9.15 µg/L 9.2% of the EPA limit 100 µg/L
worst single sample: 9.5 µg/L | 11/30 | SYR4 | 2012–2018 |
| Combined Uranium | 6.97484 µg/L 23% of the EPA limit 30 µg/L
worst single sample: 7.003 µg/L | 10/17 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 2.455 µg/L No EPA limit set
worst single sample: 2.7 µg/L | 8/20 | SYR4 | 2018–2019 |
| Lead | 3.975 µg/L 27% of the EPA limit 15 µg/L
worst single sample: 4 µg/L | 6/95 | SYR4 | 2013–2019 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L | 4/30 | SYR4 | 2012–2018 |
| Ethylbenzene | 1.6565 µg/L 0.2% of the EPA limit 700 µg/L
worst single sample: 1.7 µg/L | 2/205 | SYR4 | 2012–2019 |
| Cyanide | 8 µg/L 4% of the EPA limit 200 µg/L | 1/30 | SYR4 | 2012–2018 |
| Trichloroacetic Acid | 1.3 µg/L No EPA limit set | 1/20 | SYR4 | 2018–2019 |
78 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Ambler Boro Water Dept
Is Ambler Boro Water Dept tap water safe to drink?
EPA monitoring detected 31 contaminants in Ambler Boro Water Dept'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 Ambler Boro Water Dept's water?
EPA monitoring detected Nitrate, Dibromochloromethane, Bromodichloromethane, TTHM, Bromoform, and others. The full list with the level and data source for each is above.
How many people does Ambler Boro Water Dept serve?
Ambler Boro Water Dept reports serving 20,000 people in Pennsylvania, per its EPA record.
Has Ambler Boro Water Dept had any water quality violations?
The EPA has 2898 violations on file for Ambler Boro Water Dept, of which 14 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.