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 | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2021-07-01 → 2021-09-30 |
| MCL | Health-based | Archived | 2020-10-01 → 2020-12-31 |
| MCL | Health-based | Archived | 2020-07-01 → 2020-09-30 |
| MCL | Health-based | Archived | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Archived | 2019-10-01 → 2019-12-31 |
| MCL | Health-based | Archived | 2019-07-01 → 2019-09-30 |
| MCL | Health-based | Archived | 2019-04-01 → 2019-06-30 |
| MCL | Health-based | Archived | 2018-01-01 → 2018-03-31 |
| MCL | Health-based | Archived | 2014-07-01 → 2014-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 97.115 µg/L 121% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 105 µg/L | 120/120 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 55.205 µg/L 92% of the EPA limit 60 µg/L
worst single sample: 64.6 µg/L | 120/120 | SYR4 | 2012–2019 |
| Bromodichloromethane | 19.3 µg/L No EPA limit set
worst single sample: 26.9 µg/L | 108/108 | SYR4 | 2013–2019 |
| Chloroform | 78.56 µg/L No EPA limit set
worst single sample: 81.2 µg/L | 108/108 | SYR4 | 2013–2019 |
| Dibromochloromethane | 4.029 µg/L No EPA limit set
worst single sample: 8.87 µg/L | 107/108 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 35.39 µg/L No EPA limit set
worst single sample: 44.6 µg/L | 107/108 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 19.45 µg/L No EPA limit set
worst single sample: 26.6 µg/L | 106/108 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 3.088 µg/L No EPA limit set
worst single sample: 3.88 µg/L | 73/108 | SYR4 | 2013–2019 |
| Nitrate | 2451.5 µg/L 25% of the EPA limit 10000 µg/L
worst single sample: 2820 µg/L | 32/32 | SYR4 | 2012–2019 |
| Lead | 0.0100 mg/L 67% of the EPA limit 0.0150 mg/L | 19/19 | LCR | 2025 |
| Fluoride | 1040 µg/L 26% of the EPA limit 4000 µg/L | 9/9 | SYR4 | 2012–2019 |
| Bromoform | 0.5600 µg/L No EPA limit set | 1/108 | SYR4 | 2013–2019 |
| Chromium | 12 µg/L 12% of the EPA limit 100 µg/L | 1/9 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.09 µg/L No EPA limit set | 1/108 | SYR4 | 2013–2019 |
88 contaminants tested, none detected
Utility contact
Frequently asked questions about Somerset Water Department
Is Somerset Water Department tap water safe to drink?
EPA monitoring detected 14 contaminants in Somerset Water Department'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 Somerset Water Department's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Somerset Water Department serve?
Somerset Water Department reports serving 18,303 people in Massachusetts, per its EPA record.
Has Somerset Water Department had any water quality violations?
The EPA has 24 violations on file for Somerset Water Department, of which 12 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.