KNIGHTS OF SAINT JOHN
PWS ID: OH5433112 · MARIA STEIN, Ohio 45860
Population Served
220
Total Violations
7
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Mercer
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 7
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 4 | 2023 |
| Coliform (TCR) | MR | 3 | 2006 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.