RIO GRANDE
PWS ID: OH2700316 · RIO GRANDE, Ohio 45674
Population Served
830
Total Violations
171
Health-Based Violations
66
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 265
- County
- Gallia
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 90
- Treatment Tech Violations
- 66
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 67 | 1994 |
| Surface Water Treatment Rule | TT | 66 | 1994 |
| Revised Total Coliform Rule | MON | 7 | 2020 |
| Consumer Confidence Rule | Other | 5 | 2023 |
| Public Notice | Other | 5 | 2023 |
| Lead and Copper Rule | MR | 4 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2003 |
| Nitrate | MR | 3 | 2004 |
| Endrin | MR | 1 | 1985 |
| Methoxychlor | MR | 1 | 1985 |
| Toxaphene | MR | 1 | 1985 |
| 2,4,5-TP | MR | 1 | 1985 |
| 2,4-D | MR | 1 | 1985 |
| BHC-GAMMA | MR | 1 | 1985 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.