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 | 2013-05-01 → 2013-05-31 |
| MCL | Health-based | Resolved | 2013-05-01 → 2013-05-31 |
| MCL | Health-based | Resolved | 2013-05-01 → 2013-05-31 |
| MON | Monitoring | Resolved | 2025-06-01 → 2025-06-30 |
| MON | Monitoring | Resolved | 2025-06-01 → 2025-06-30 |
| MON | Monitoring | Resolved | 2025-06-01 → 2025-06-30 |
| RPT | Monitoring | Resolved | 2022-01-01 |
| MON | Monitoring | Resolved | 2016-09-01 → 2016-09-30 |
| MON | Monitoring | Resolved | 2016-09-01 → 2016-09-30 |
| MON | Monitoring | Resolved | 2016-09-01 → 2016-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Dichloroacetic Acid | 37.1 µg/L No EPA limit set | 58/58 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 70.7 µg/L 118% of the EPA limit, in the worst sample — 60 µg/L | 58/58 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 30.8 µg/L No EPA limit set | 57/58 | SYR4 | 2012–2019 |
| Bromodichloromethane | 16.2 µg/L No EPA limit set | 56/56 | SYR4 | 2012–2019 |
| Chloroform | 105 µg/L No EPA limit set | 56/56 | SYR4 | 2012–2019 |
| TTHM | 115 µg/L 144% of the EPA limit, in the worst sample — 80 µg/L | 56/56 | SYR4 | 2012–2019 |
| Dibromochloromethane | 5.5 µg/L No EPA limit set | 46/56 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.5 µg/L No EPA limit set | 11/58 | SYR4 | 2012–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2004 |
| Monochloroacetic Acid | 3 µg/L No EPA limit set | 6/58 | SYR4 | 2012–2019 |
| Bromoform | 1.1 µg/L No EPA limit set | 2/56 | SYR4 | 2012–2019 |
| Lead | 39 µg/L 260% of the EPA limit, in the worst sample — 15 µg/L | 2/30 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set | 2/58 | SYR4 | 2012–2019 |
| Copper | 20.2 µg/L 1.6% of the EPA limit 1300 µg/L | 1/30 | SYR4 | 2013–2019 |
Utility contact
Frequently asked questions about Oak Grove Water Association
Is Oak Grove Water Association tap water safe to drink?
EPA monitoring detected 14 contaminants in Oak Grove Water Association'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 Oak Grove Water Association's water?
EPA monitoring detected Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Oak Grove Water Association serve?
Oak Grove Water Association reports serving 2,963 people in Arkansas, per its EPA record.
Has Oak Grove Water Association had any water quality violations?
The EPA has 20 violations on file for Oak Grove Water Association, of which 3 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.