GRAND LAKE ESTATES
PWS ID: OH5400312 · NEW KNOXVILLE, Ohio 45871
Population Served
103
Total Violations
263
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 68
- County
- Mercer
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 222
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 33 | 2010 |
| Consumer Confidence Rule | Other | 26 | 2025 |
| Nitrate | MR | 14 | 2004 |
| Lead and Copper Rule | MR | 12 | 2016 |
| BHC-GAMMA | MR | 5 | 1991 |
| Toxaphene | MR | 5 | 1991 |
| 2,4-D | MR | 5 | 1991 |
| 2,4,5-TP | MR | 5 | 1991 |
| Endrin | MR | 5 | 1991 |
| Methoxychlor | MR | 5 | 1991 |
| Atrazine | MR | 4 | 2002 |
| Simazine | MR | 4 | 2002 |
| Coliform (TCR) | MCL | 4 | 2000 |
| 1,1,1-Trichloroethane | MR | 4 | 2000 |
| 1,2-Dichloropropane | MR | 4 | 2000 |
| Vinyl chloride | MR | 4 | 2000 |
| Trichloroethylene | MR | 4 | 2000 |
| Toluene | MR | 4 | 2000 |
| Styrene | MR | 4 | 2000 |
| trans-1,2-Dichloroethylene | MR | 4 | 2000 |
| o-Dichlorobenzene | MR | 4 | 2000 |
| cis-1,2-Dichloroethylene | MR | 4 | 2000 |
| Carbon tetrachloride | MR | 4 | 2000 |
| Lead and Copper Rule | TT | 4 | 2016 |
| Tetrachloroethylene | MR | 4 | 2000 |
| Ethylbenzene | MR | 4 | 2000 |
| Xylenes, Total | MR | 4 | 2000 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2000 |
| 1,2-Dichloroethane | MR | 4 | 2000 |
| CHLOROBENZENE | MR | 4 | 2000 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.