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 |
|---|---|---|---|
| MCL | Health-based | Archived | 1984-07-01 → 1984-09-30 |
| MR | Monitoring | Archived | 2026-01-01 → 2026-01-31 |
| MR | Monitoring | Archived | 2026-01-01 → 2026-01-31 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2024-07-01 |
| MR | Monitoring | Resolved | 2016-12-30 |
| MR | Monitoring | Resolved | 2016-12-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 190 µg/L 15% of the EPA limit 1300 µg/L
worst single sample: 330 µg/L | 208/218 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 35 µg/L No EPA limit set
worst single sample: 46 µg/L | 121/127 | SYR4 | 2012–2019 |
| Lead | 18.7 µg/L 125% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 86 µg/L | 121/218 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 38 µg/L 63% of the EPA limit 60 µg/L
worst single sample: 58 µg/L | 121/128 | SYR4 | 2012–2019 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L
worst single sample: 1260 µg/L | 106/106 | SYR4 | 2012–2019 |
| TTHM | 22 µg/L 28% of the EPA limit 80 µg/L
worst single sample: 53 µg/L | 98/128 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 6 µg/L No EPA limit set
worst single sample: 6.7 µg/L | 84/127 | SYR4 | 2012–2019 |
| Chloroform | 21.15 µg/L No EPA limit set
worst single sample: 51 µg/L | 78/98 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 5.945 µg/L No EPA limit set
worst single sample: 11 µg/L | 40/127 | SYR4 | 2012–2019 |
| Lead | 0.0075 mg/L 50% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2025 |
| Barium | 1.465 µg/L 0.1% of the EPA limit 2000 µg/L
worst single sample: 1.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.8 µg/L No EPA limit set
worst single sample: 2 µg/L | 6/98 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.58 µg/L No EPA limit set
worst single sample: 1.6 µg/L | 5/127 | SYR4 | 2012–2019 |
| Combined Uranium | 0.5470 µg/L 1.8% of the EPA limit 30 µg/L
worst single sample: 0.5500 µg/L | 4/5 | SYR4 | 2015–2019 |
| Nitrate | 160 µg/L 1.6% of the EPA limit 10000 µg/L | 4/16 | SYR4 | 2012–2019 |
| Chromium | 0.5400 µg/L 0.5% of the EPA limit 100 µg/L | 2/8 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 158.5 µg/L 1.6% of the EPA limit 10000 µg/L
worst single sample: 160 µg/L | 2/8 | SYR4 | 2012–2019 |
| Antimony, Total | 0.5600 µg/L 9.3% of the EPA limit 6 µg/L | 1/8 | SYR4 | 2012–2019 |
| Bromate | 5.7 µg/L 57% of the EPA limit 10 µg/L | 1/31 | SYR4 | 2012–2019 |
64 contaminants tested, none detected
Utility contact
Frequently asked questions about Bangor Water District
Is Bangor Water District tap water safe to drink?
EPA monitoring detected 19 contaminants in Bangor Water District'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 Bangor Water District's water?
EPA monitoring detected Copper, Dichloroacetic Acid, Lead, Total Haloacetic Acids (HAA5), Fluoride, and others. The full list with the level and data source for each is above.
How many people does Bangor Water District serve?
Bangor Water District reports serving 27,298 people in Maine, per its EPA record.
Has Bangor Water District had any water quality violations?
The EPA has 9 violations on file for Bangor Water District, of which 1 is 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.