WALNUT CREEK WATER CO.
PWS ID: OH3801512 · WALNUT CREEK, Ohio 44687
Population Served
1,270
Total Violations
322
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 396
- County
- Holmes
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 302
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chromium | MR | 10 | 2003 |
| Mercury | MR | 10 | 2003 |
| Fluoride | MR | 10 | 2003 |
| Selenium | MR | 10 | 2003 |
| Cadmium | MR | 10 | 2003 |
| Barium | MR | 10 | 2003 |
| Coliform (TCR) | MR | 8 | 1995 |
| Arsenic | MR | 8 | 2003 |
| Antimony, Total | MR | 7 | 2003 |
| Beryllium, Total | MR | 7 | 2003 |
| Nickel | MR | 7 | 2003 |
| Nitrate | MR | 7 | 2003 |
| Thallium, Total | MR | 7 | 2003 |
| Lead and Copper Rule | MR | 5 | 2011 |
| Coliform (TCR) | MCL | 5 | 2012 |
| Methoxychlor | MR | 4 | 1994 |
| Dalapon | MR | 4 | 1994 |
| Endothall | MR | 4 | 1994 |
| Di(2-ethylhexyl) adipate | MR | 4 | 1994 |
| OXAMYL | MR | 4 | 1994 |
| Dinoseb | MR | 4 | 1994 |
| Aldicarb sulfoxide | MR | 4 | 1994 |
| Aldicarb sulfone | MR | 4 | 1994 |
| Carbofuran | MR | 4 | 1994 |
| LASSO | MR | 4 | 1994 |
| Heptachlor epoxide | MR | 4 | 1994 |
| 2,4,5-TP | MR | 4 | 1994 |
| HEXACHLOROBENZENE | MR | 4 | 1994 |
| Pentachlorophenol | MR | 4 | 1994 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.