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 | Resolved | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Resolved | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Resolved | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Resolved | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Resolved | 2021-04-01 → 2021-06-30 |
| MCL | Health-based | Resolved | 2021-04-01 → 2021-06-30 |
| MCL | Health-based | Resolved | 2020-04-01 → 2020-06-30 |
| MCL | Health-based | Resolved | 2020-04-01 → 2020-06-30 |
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0069 mg/L 46% of the EPA limit 0.0150 mg/L | 32/32 | LCR | 2025 |
| TTHM | 112 µg/L 140% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 122.7 µg/L | 29/29 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 90.82 µg/L 151% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 97 µg/L | 29/30 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 28.5 µg/L No EPA limit set
worst single sample: 39 µg/L | 23/23 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 62 µg/L No EPA limit set
worst single sample: 78 µg/L | 23/23 | SYR4 | 2013–2019 |
| Bromodichloromethane | 3.86 µg/L No EPA limit set
worst single sample: 4 µg/L | 21/21 | SYR4 | 2013–2019 |
| Chloroform | 98 µg/L No EPA limit set
worst single sample: 120 µg/L | 21/21 | SYR4 | 2013–2019 |
| Nitrate | 440 µg/L 4.4% of the EPA limit 10000 µg/L | 14/14 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 1.955 µg/L No EPA limit set
worst single sample: 2 µg/L | 10/23 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 0.7005 µg/L No EPA limit set
worst single sample: 0.7100 µg/L | 2/23 | SYR4 | 2013–2019 |
50 contaminants tested, none detected
Utility contact
Frequently asked questions about Monroe Water District
Is Monroe Water District tap water safe to drink?
EPA monitoring detected 10 contaminants in Monroe 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 Monroe Water District's water?
EPA monitoring detected Lead, TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Trichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Monroe Water District serve?
Monroe Water District reports serving 55 people in Massachusetts, per its EPA record.
Has Monroe Water District had any water quality violations?
The EPA has 148 violations on file for Monroe Water District, of which 40 are health-based (a contaminant limit or required treatment was breached) and 4 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.