RIVERDALE LOCAL SCHOOLS
PWS ID: OH3239812 · MOUNT BLANCHARD, Ohio 45867
Population Served
1,127
Total Violations
78
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 3
- County
- Hancock
- School/Daycare
- Yes
- MCL Violations
- 9
- Monitoring Violations
- 69
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 9 | 1994 |
| Coliform (TCR) | MCL | 9 | 1996 |
| Coliform (TCR) | MR | 4 | 1996 |
| Nitrate | MR | 4 | 1993 |
| Nitrite | MR | 4 | 1993 |
| Mercury | MR | 4 | 2004 |
| Arsenic | MR | 4 | 2004 |
| CYANIDE | MR | 4 | 2004 |
| Barium | MR | 4 | 2004 |
| Antimony, Total | MR | 4 | 2004 |
| Nickel | MR | 4 | 2004 |
| Cadmium | MR | 4 | 2004 |
| Thallium, Total | MR | 4 | 2004 |
| Chromium | MR | 4 | 2004 |
| Beryllium, Total | MR | 4 | 2004 |
| Fluoride | MR | 4 | 2004 |
| Selenium | MR | 4 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.