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 | 2020-12-02 |
| TT | Health-based | Resolved | 2020-12-02 |
| TT | Health-based | Resolved | 2020-12-02 |
| TT | Health-based | Resolved | 2020-12-02 |
| TT | Health-based | Resolved | 2020-12-02 |
| MCL | Health-based | Resolved | 2002-04-01 → 2002-04-30 |
| MCL | Health-based | Resolved | 2002-04-01 → 2002-04-30 |
| MCL | Health-based | Resolved | 2002-04-01 → 2002-04-30 |
| MCL | Health-based | Resolved | 2002-04-01 → 2002-04-30 |
| MR | Monitoring | Unaddressed | 2025-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 315.05 µg/L 24% of the EPA limit 1300 µg/L
worst single sample: 660 µg/L | 58/60 | SYR4 | 2012–2018 |
| Lead | 8.48 µg/L 57% of the EPA limit 15 µg/L
worst single sample: 17.1 µg/L | 43/60 | SYR4 | 2012–2018 |
| Nitrate | 6577.5 µg/L 66% of the EPA limit 10000 µg/L
worst single sample: 6910 µg/L | 40/40 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 6647.5 µg/L 66% of the EPA limit 10000 µg/L
worst single sample: 6910 µg/L | 16/16 | SYR4 | 2013–2019 |
| Lead | 0.0034 mg/L 23% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2022 |
| Bromodichloromethane | 7.817 µg/L No EPA limit set
worst single sample: 8 µg/L | 7/7 | SYR4 | 2012–2019 |
| Bromoform | 2.803 µg/L No EPA limit set
worst single sample: 2.86 µg/L | 7/7 | SYR4 | 2012–2019 |
| Chloroform | 3.491 µg/L No EPA limit set
worst single sample: 3.5 µg/L | 7/7 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.808 µg/L No EPA limit set
worst single sample: 4.88 µg/L | 7/7 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.879 µg/L No EPA limit set
worst single sample: 8.2 µg/L | 7/7 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 8.315 µg/L No EPA limit set
worst single sample: 9.74 µg/L | 7/7 | SYR4 | 2012–2019 |
| TTHM | 21.56 µg/L 27% of the EPA limit 80 µg/L
worst single sample: 22.1 µg/L | 7/7 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 15.46 µg/L 26% of the EPA limit 60 µg/L
worst single sample: 17.2 µg/L | 7/7 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.42 µg/L No EPA limit set
worst single sample: 2.62 µg/L | 5/7 | SYR4 | 2012–2019 |
| Barium | 580.09 µg/L 29% of the EPA limit 2000 µg/L
worst single sample: 637 µg/L | 3/3 | SYR4 | 2012–2019 |
| Fluoride | 634 µg/L 16% of the EPA limit 4000 µg/L
worst single sample: 660 µg/L | 3/3 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.146 µg/L No EPA limit set
worst single sample: 1.16 µg/L | 3/7 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 0.5541 pCi/L 3.7% of the EPA limit 15 pCi/L
worst single sample: 0.5560 pCi/L | 2/2 | SYR4 | 2012–2019 |
| Chromium | 1.2 µg/L 1.2% of the EPA limit 100 µg/L | 1/3 | SYR4 | 2012–2019 |
| Selenium | 2.6 µg/L 5.2% of the EPA limit 50 µg/L | 1/3 | SYR4 | 2012–2019 |
| Thallium, Total | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/3 | SYR4 | 2012–2019 |
55 contaminants tested, none detected
Utility contact
Frequently asked questions about Williamstown Water Dept
Is Williamstown Water Dept tap water safe to drink?
EPA monitoring detected 21 contaminants in Williamstown Water Dept'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 Williamstown Water Dept's water?
EPA monitoring detected Copper, Lead, Nitrate, Nitrate-Nitrite, Lead, and others. The full list with the level and data source for each is above.
How many people does Williamstown Water Dept serve?
Williamstown Water Dept reports serving 3,469 people in West Virginia, per its EPA record.
Has Williamstown Water Dept had any water quality violations?
The EPA has 144 violations on file for Williamstown Water Dept, of which 9 are health-based (a contaminant limit or required treatment was breached) and 7 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.