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 | 2011-11-01 → 2011-11-30 |
| MCL | Health-based | Resolved | 2011-11-01 → 2011-11-30 |
| MCL | Health-based | Resolved | 1995-09-01 → 1995-09-30 |
| MCL | Health-based | Resolved | 1995-08-01 → 1995-08-31 |
| MCL | Health-based | Resolved | 1995-07-01 → 1995-07-31 |
| Other | Monitoring | Resolved | 2022-07-01 |
| Other | Monitoring | Resolved | 2022-07-01 |
| Other | Monitoring | Resolved | 2021-07-01 |
| Other | Monitoring | Resolved | 2021-07-01 |
| MR | Monitoring | Archived | 1994-08-01 → 1994-08-31 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0075 µg/L | 3/16 | 2025 |
| Pfba | 0.0129 µg/L | 2/16 | 2025 |
| PFBS | 0.0035 µg/L | 2/16 | 2025 |
| Pfhpa | 0.0106 µg/L | 2/16 | 2025 |
| Pfhps | 0.0033 µg/L | 2/16 | 2025 |
| Pfhxa | 0.0307 µg/L | 2/16 | 2025 |
| PFHXS | 0.0310 µg/L | 2/16 | 2025 |
| PFOS | 0.0350 µg/L | 2/16 | 2025 |
| Pfpea | 0.0466 µg/L | 2/16 | 2025 |
| 6:2 Fts | 0.0057 µg/L | 1/16 | 2025 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3674.5 µg/L 37% of the EPA limit 10000 µg/L
worst single sample: 4110 µg/L | 188/190 | SYR4 | 2012–2019 |
| TTHM | 10.036 µg/L 13% of the EPA limit 80 µg/L
worst single sample: 10.2 µg/L | 49/56 | SYR4 | 2012–2019 |
| Copper | 362.35 µg/L 28% of the EPA limit 1300 µg/L
worst single sample: 486 µg/L | 42/52 | SYR4 | 2016–2019 |
| Dibromochloromethane | 3.765 µg/L No EPA limit set
worst single sample: 3.99 µg/L | 31/35 | SYR4 | 2015–2019 |
| Bromoform | 2.17 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 30/35 | SYR4 | 2015–2019 |
| Chloroform | 1.246 µg/L No EPA limit set
worst single sample: 1.4 µg/L | 28/35 | SYR4 | 2015–2019 |
| Bromodichloromethane | 2.06 µg/L No EPA limit set
worst single sample: 2.49 µg/L | 25/35 | SYR4 | 2015–2019 |
| Barium | 73.9 µg/L 3.7% of the EPA limit 2000 µg/L
worst single sample: 79 µg/L | 23/23 | SYR4 | 2012–2018 |
| Fluoride | 1028.5 µg/L 26% of the EPA limit 4000 µg/L
worst single sample: 1070 µg/L | 22/23 | SYR4 | 2012–2018 |
| Lead | 3.31 µg/L 22% of the EPA limit 15 µg/L
worst single sample: 5.9 µg/L | 15/30 | SYR4 | 2016 |
| Total Haloacetic Acids (HAA5) | 2.557 µg/L 4.3% of the EPA limit 60 µg/L
worst single sample: 2.97 µg/L | 15/56 | SYR4 | 2012–2019 |
| Lead | 0.0044 mg/L 29% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2023 |
| Dibromoacetic Acid | 1.516 µg/L No EPA limit set
worst single sample: 1.6 µg/L | 8/35 | SYR4 | 2015–2019 |
| Monochloroacetic Acid | 1.5935 µg/L No EPA limit set
worst single sample: 1.61 µg/L | 2/35 | SYR4 | 2015–2019 |
| Heptachlor Epoxide | 0.0190 µg/L 9.5% of the EPA limit 0.2000 µg/L | 1/29 | SYR4 | 2015–2018 |
79 contaminants tested, none detected
Utility contact
Frequently asked questions about Duxbury Water Department
Is Duxbury Water Department tap water safe to drink?
EPA monitoring detected 25 contaminants in Duxbury 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 Duxbury Water Department's water?
EPA monitoring detected Nitrate, TTHM, Copper, Dibromochloromethane, Bromoform, and others. The full list with the level and data source for each is above.
How many people does Duxbury Water Department serve?
Duxbury Water Department reports serving 16,387 people in Massachusetts, per its EPA record.
Has Duxbury Water Department had any water quality violations?
The EPA has 14 violations on file for Duxbury Water Department, of which 5 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.