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 | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-04-01 → 2025-06-30 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0040 µg/L | 1/4 | 2023 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromoform | 70.895 µg/L No EPA limit set
worst single sample: 77.8 µg/L | 64/64 | SYR4 | 2012–2019 |
| Dibromochloromethane | 64.92 µg/L No EPA limit set
worst single sample: 73.8 µg/L | 64/64 | SYR4 | 2012–2019 |
| Chloroform | 25.43 µg/L No EPA limit set
worst single sample: 30.5 µg/L | 63/64 | SYR4 | 2012–2019 |
| TTHM | 159.925 µg/L 200% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 179.2 µg/L | 62/62 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 24.4 µg/L No EPA limit set
worst single sample: 29 µg/L | 61/62 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 34.05 µg/L 57% of the EPA limit 60 µg/L
worst single sample: 58 µg/L | 60/62 | SYR4 | 2012–2019 |
| Bromodichloromethane | 30.25 µg/L No EPA limit set
worst single sample: 45.9 µg/L | 58/58 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 12.488 µg/L No EPA limit set
worst single sample: 25.16 µg/L | 57/62 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10.47 µg/L No EPA limit set
worst single sample: 18.45 µg/L | 53/62 | SYR4 | 2012–2019 |
| Nitrate | 780 µg/L 7.8% of the EPA limit 10000 µg/L
worst single sample: 1160 µg/L | 52/194 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 3.59 µg/L No EPA limit set
worst single sample: 6.06 µg/L | 43/62 | SYR4 | 2012–2019 |
| Copper | 246.61 µg/L 19% of the EPA limit 1300 µg/L
worst single sample: 368 µg/L | 32/41 | SYR4 | 2014–2017 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 26/26 | LCR | 2026 |
| Fluoride | 992.85 µg/L 25% of the EPA limit 4000 µg/L
worst single sample: 1010 µg/L | 8/8 | SYR4 | 2012–2019 |
| Barium | 50.72 µg/L 2.5% of the EPA limit 2000 µg/L
worst single sample: 53.6 µg/L | 7/8 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.36 µg/L No EPA limit set
worst single sample: 3.4 µg/L | 5/62 | SYR4 | 2012–2019 |
| Lead | 7.029 µg/L 47% of the EPA limit 15 µg/L
worst single sample: 7.15 µg/L | 2/41 | SYR4 | 2014–2017 |
| Atrazine | 0.1800 µg/L 6% of the EPA limit 3 µg/L | 1/8 | SYR4 | 2012–2019 |
| Ethylbenzene | 1.1 µg/L 0.2% of the EPA limit 700 µg/L | 1/9 | SYR4 | 2012–2019 |
| Selenium | 6.36 µg/L 13% of the EPA limit 50 µg/L | 1/8 | SYR4 | 2012–2019 |
| Xylenes, Total | 5.99 µg/L 0.1% of the EPA limit 10000 µg/L | 1/9 | SYR4 | 2012–2019 |
60 contaminants tested, none detected
Utility contact
Frequently asked questions about Maysville Regional Water
Is Maysville Regional Water tap water safe to drink?
EPA monitoring detected 22 contaminants in Maysville Regional Water'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 Maysville Regional Water's water?
EPA monitoring detected Bromoform, Dibromochloromethane, Chloroform, TTHM, Dibromoacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Maysville Regional Water serve?
Maysville Regional Water reports serving 6,540 people in Ohio, per its EPA record.
Has Maysville Regional Water had any water quality violations?
The EPA has 409 violations on file for Maysville Regional Water, of which 227 are health-based (a contaminant limit or required treatment was breached) and 3 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.