ODNR-HOCKING HILLS STATE PARK
PWS ID: OH3736411 · COLUMBUS, Ohio 43229
Population Served
2,559
Total Violations
154
Health-Based Violations
36
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- State
- Connections
- 114
- County
- Hocking
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 112
- Treatment Tech Violations
- 32
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 20 | 1995 |
| Surface Water Treatment Rule | MR | 20 | 2003 |
| Interim Enhanced Surface Water Treatment Rule | TT | 12 | 2016 |
| Coliform (TCR) | MCL | 4 | 1997 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2016 |
| cis-1,2-Dichloroethylene | MR | 4 | 2016 |
| DICHLOROMETHANE | MR | 4 | 2016 |
| p-Dichlorobenzene | MR | 4 | 2016 |
| Vinyl chloride | MR | 4 | 2016 |
| 1,1,1-Trichloroethane | MR | 4 | 2016 |
| Trichloroethylene | MR | 4 | 2016 |
| 1,1,2-Trichloroethane | MR | 4 | 2016 |
| Tetrachloroethylene | MR | 4 | 2016 |
| CHLOROBENZENE | MR | 4 | 2016 |
| Toluene | MR | 4 | 2016 |
| Benzene | MR | 4 | 2016 |
| Coliform (TCR) | MR | 4 | 1993 |
| o-Dichlorobenzene | MR | 4 | 2016 |
| Ethylbenzene | MR | 4 | 2016 |
| Xylenes, Total | MR | 4 | 2016 |
| Styrene | MR | 4 | 2016 |
| Nitrate | MR | 4 | 1997 |
| trans-1,2-Dichloroethylene | MR | 4 | 2016 |
| Carbon tetrachloride | MR | 4 | 2016 |
| 1,1-Dichloroethylene | MR | 4 | 2016 |
| 1,2-Dichloropropane | MR | 4 | 2016 |
| 1,2-Dichloroethane | MR | 4 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.