ST. JOSEPH THE WORKER SCHOOL
PWS ID: MI2004237 · MT PLEASANT, Michigan 48858
Population Served
135
Total Violations
83
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Isabella
- School/Daycare
- Yes
- MCL Violations
- 3
- Monitoring Violations
- 70
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 11 | 2023 |
| Revised Total Coliform Rule | MON | 7 | 2023 |
| Nitrate | MR | 5 | 2015 |
| Lead and Copper Rule | MR | 5 | 2020 |
| Arsenic | MCL | 3 | 2008 |
| Coliform (TCR) | MR | 2 | 2013 |
| BHC-GAMMA | MR | 2 | 1999 |
| Toxaphene | MR | 2 | 1999 |
| Simazine | MR | 2 | 1999 |
| Dinoseb | MR | 2 | 1999 |
| Hexachlorocyclopentadiene | MR | 2 | 1999 |
| Heptachlor | MR | 2 | 1999 |
| Heptachlor epoxide | MR | 2 | 1999 |
| 2,4-D | MR | 2 | 1999 |
| 2,4,5-TP | MR | 2 | 1999 |
| HEXACHLOROBENZENE | MR | 2 | 1999 |
| Pentachlorophenol | MR | 2 | 1999 |
| Chlordane | MR | 2 | 1999 |
| LASSO | MR | 2 | 1999 |
| Endrin | MR | 2 | 1999 |
| Picloram | MR | 2 | 1999 |
| Carbofuran | MR | 2 | 1999 |
| OXAMYL | MR | 2 | 1999 |
| Atrazine | MR | 2 | 1999 |
| Methoxychlor | MR | 2 | 1999 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.