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 | 2024-03-01 → 2024-03-31 |
| TT | Health-based | Resolved | 2024-03-01 → 2024-03-31 |
| TT | Health-based | Resolved | 2024-03-01 → 2024-03-31 |
| TT | Health-based | Resolved | 2024-03-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2017-01-01 → 2017-03-31 |
| MCL | Health-based | Resolved | 2017-01-01 → 2017-03-31 |
| MCL | Health-based | Resolved | 2017-01-01 → 2017-03-31 |
| MCL | Health-based | Resolved | 2017-01-01 → 2017-03-31 |
| MCL | Health-based | Resolved | 2011-04-01 → 2011-06-30 |
| MCL | Health-based | Resolved | 2011-04-01 → 2011-06-30 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 1070 µg/L 11% of the EPA limit 10000 µg/L | 76/192 | SYR4 | 2012–2019 |
| Bromodichloromethane | 31.12 µg/L No EPA limit set | 73/73 | SYR4 | 2012–2019 |
| Chloroform | 96.95 µg/L No EPA limit set | 73/73 | SYR4 | 2012–2019 |
| Dibromochloromethane | 46.4 µg/L No EPA limit set | 73/73 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 37.6 µg/L 63% of the EPA limit 60 µg/L | 72/72 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 9.4 µg/L No EPA limit set | 72/72 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 8.34 µg/L No EPA limit set | 71/72 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 23.7 µg/L No EPA limit set | 71/71 | SYR4 | 2012–2019 |
| TTHM | 144.5 µg/L 181% of the EPA limit, in the worst sample — 80 µg/L | 70/70 | SYR4 | 2012–2019 |
| Bromoform | 2.86 µg/L No EPA limit set | 67/72 | SYR4 | 2012–2019 |
| Copper | 240 µg/L 18% of the EPA limit 1300 µg/L | 59/81 | SYR4 | 2014–2019 |
| Nitrate-Nitrite | 1070 µg/L 11% of the EPA limit 10000 µg/L | 33/72 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 6 µg/L No EPA limit set | 22/72 | SYR4 | 2012–2019 |
| Atrazine | 0.6700 µg/L 22% of the EPA limit 3 µg/L | 21/23 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2023 |
| Simazine | 0.2500 µg/L 6.3% of the EPA limit 4 µg/L | 19/23 | SYR4 | 2012–2019 |
| Barium | 120 µg/L 6% of the EPA limit 2000 µg/L | 7/8 | SYR4 | 2012–2019 |
| Fluoride | 1030 µg/L 26% of the EPA limit 4000 µg/L | 7/8 | SYR4 | 2012–2019 |
| Lead | 19 µg/L 127% of the EPA limit, in the worst sample — 15 µg/L | 7/81 | SYR4 | 2014–2019 |
| Monobromoacetic Acid | 1.16 µg/L No EPA limit set | 3/72 | SYR4 | 2012–2019 |
| Arsenic | 8.4 µg/L 84% of the EPA limit 10 µg/L | 1/8 | SYR4 | 2012–2019 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L | 1/8 | SYR4 | 2012–2019 |
57 contaminants tested, none detected
Utility contact
Frequently asked questions about Oberlin Water Department
Is Oberlin Water Department tap water safe to drink?
EPA monitoring detected 26 contaminants in Oberlin 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 Oberlin Water Department's water?
EPA monitoring detected Nitrate, Bromodichloromethane, Chloroform, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Oberlin Water Department serve?
Oberlin Water Department reports serving 8,600 people in Ohio, per its EPA record.
Has Oberlin Water Department had any water quality violations?
The EPA has 32 violations on file for Oberlin Water Department, of which 23 are health-based (a contaminant limit or required treatment was breached) and 1 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.