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 | 1992-09-01 → 1992-09-30 |
| MR | Monitoring | Archived | 1998-04-01 → 1998-06-30 |
| MR | Monitoring | Resolved | 1996-10-01 → 1996-12-31 |
| MR | Monitoring | Resolved | 1996-10-01 → 1996-12-31 |
| MR | Monitoring | Resolved | 1996-07-01 → 1996-09-30 |
| MR | Monitoring | Resolved | 1996-07-01 → 1996-09-30 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfhxa | 0.0034 µg/L | 2/6 | 2024 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4000 µg/L 40% of the EPA limit 10000 µg/L
worst single sample: 4030 µg/L | 60/62 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2026 |
| TTHM | 42.2 µg/L 53% of the EPA limit 80 µg/L
worst single sample: 44 µg/L | 13/13 | SYR4 | 2012–2019 |
| Barium | 21.35 µg/L 1.1% of the EPA limit 2000 µg/L
worst single sample: 23 µg/L | 12/12 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 6.06 µg/L 10% of the EPA limit 60 µg/L
worst single sample: 7.6 µg/L | 12/12 | SYR4 | 2012–2019 |
| Fluoride | 920 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 940 µg/L | 11/12 | SYR4 | 2012–2019 |
| Bromodichloromethane | 13.5 µg/L No EPA limit set
worst single sample: 14 µg/L | 6/6 | SYR4 | 2014–2019 |
| Bromoform | 2.475 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 6/6 | SYR4 | 2014–2019 |
| Copper | 28.25 µg/L 2.2% of the EPA limit 1300 µg/L
worst single sample: 29 µg/L | 6/8 | SYR4 | 2014–2015 |
| Chloroform | 13.5 µg/L No EPA limit set
worst single sample: 14 µg/L | 6/6 | SYR4 | 2014–2019 |
| Dibromochloromethane | 11 µg/L No EPA limit set | 6/6 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 3.775 µg/L No EPA limit set
worst single sample: 3.8 µg/L | 6/6 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 1.192 µg/L No EPA limit set
worst single sample: 1.24 µg/L | 5/6 | SYR4 | 2014–2019 |
| Arsenic | 4.385 µg/L 44% of the EPA limit 10 µg/L
worst single sample: 4.4 µg/L | 2/12 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 0.6400 µg/L No EPA limit set | 1/6 | SYR4 | 2014–2019 |
| Nitrite | 210 µg/L 21% of the EPA limit 1000 µg/L | 1/23 | SYR4 | 2012–2019 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Aquarion Water Company Oxford
Is Aquarion Water Company Oxford tap water safe to drink?
EPA monitoring detected 17 contaminants in Aquarion Water Company Oxford'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 Aquarion Water Company Oxford's water?
EPA monitoring detected Nitrate, Lead, TTHM, Barium, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Aquarion Water Company Oxford serve?
Aquarion Water Company Oxford reports serving 7,384 people in Massachusetts, per its EPA record.
Has Aquarion Water Company Oxford had any water quality violations?
The EPA has 6 violations on file for Aquarion Water Company Oxford, 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.