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 |
|---|---|---|---|
| TT | Health-based | Resolved | 2021-04-21 |
| TT | Health-based | Resolved | 2021-04-21 |
| TT | Health-based | Resolved | 2021-04-21 |
| MCL | Health-based | Resolved | 2014-08-01 → 2014-08-31 |
| MCL | Health-based | Resolved | 2014-08-01 → 2014-08-31 |
| MCL | Health-based | Resolved | 2014-08-01 → 2014-08-31 |
| MCL | Health-based | Resolved | 2014-08-01 → 2014-08-31 |
| MCL | Health-based | Resolved | 2010-01-01 → 2010-03-31 |
| MCL | Health-based | Resolved | 2010-01-01 → 2010-03-31 |
| MCL | Health-based | Resolved | 2010-01-01 → 2010-03-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 930 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 1100 µg/L | 104/105 | SYR4 | 2012–2019 |
| Copper | 70.95 µg/L 5.5% of the EPA limit 1300 µg/L
worst single sample: 100 µg/L | 48/48 | SYR4 | 2012–2019 |
| TTHM | 62.37 µg/L 78% of the EPA limit 80 µg/L
worst single sample: 82.7 µg/L | 43/43 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 44.7 µg/L 75% of the EPA limit 60 µg/L
worst single sample: 83.9 µg/L | 43/43 | SYR4 | 2012–2019 |
| Lead | 19.1 µg/L 127% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 38 µg/L | 32/48 | SYR4 | 2012–2019 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L | 30/30 | LCR | 2025 |
| Barium | 2.49 µg/L 0.1% of the EPA limit 2000 µg/L
worst single sample: 2.7 µg/L | 8/8 | SYR4 | 2012–2019 |
| Bromodichloromethane | 9.76 µg/L No EPA limit set
worst single sample: 10 µg/L | 4/4 | SYR4 | 2014–2018 |
| Chloroform | 91.4 µg/L No EPA limit set
worst single sample: 92 µg/L | 4/4 | SYR4 | 2014–2018 |
| Dibromochloromethane | 1.9 µg/L No EPA limit set | 1/4 | SYR4 | 2014–2018 |
| Toluene | 1.3 µg/L 0.1% of the EPA limit 1000 µg/L | 1/4 | SYR4 | 2014–2018 |
36 contaminants tested, none detected
Utility contact
Frequently asked questions about Great Salt Bay Sanitary District
Is Great Salt Bay Sanitary District tap water safe to drink?
EPA monitoring detected 11 contaminants in Great Salt Bay Sanitary 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 Great Salt Bay Sanitary District's water?
EPA monitoring detected Fluoride, Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, and others. The full list with the level and data source for each is above.
How many people does Great Salt Bay Sanitary District serve?
Great Salt Bay Sanitary District reports serving 2,143 people in Maine, per its EPA record.
Has Great Salt Bay Sanitary District had any water quality violations?
The EPA has 225 violations on file for Great Salt Bay Sanitary District, of which 129 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.