SENECA SANITARY DIST NO 1
PWS ID: WI6120251 · SENECA, Wisconsin 54654
Population Served
250
Total Violations
72
Health-Based Violations
18
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 112
- County
- Crawford
- School/Daycare
- No
- MCL Violations
- 18
- Monitoring Violations
- 44
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 18 | 2004 |
| Coliform (TCR) | MR | 12 | 2013 |
| Chlorine | MR | 8 | 2013 |
| Lead and Copper Rule | MR | 5 | 2024 |
| Atrazine | MR | 3 | 1993 |
| cis-1,2-Dichloroethylene | MR | 1 | 1993 |
| Benzene | MR | 1 | 1993 |
| Trichloroethylene | MR | 1 | 1993 |
| 1,2-Dichloropropane | MR | 1 | 1993 |
| 1,1,1-Trichloroethane | MR | 1 | 1993 |
| Vinyl chloride | MR | 1 | 1993 |
| p-Dichlorobenzene | MR | 1 | 1993 |
| ETHYLENE DIBROMIDE | MR | 1 | 1993 |
| 1,1-Dichloroethylene | MR | 1 | 1993 |
| Xylenes, Total | MR | 1 | 1993 |
| trans-1,2-Dichloroethylene | MR | 1 | 1993 |
| Tetrachloroethylene | MR | 1 | 1993 |
| Carbon tetrachloride | MR | 1 | 1993 |
| o-Dichlorobenzene | MR | 1 | 1993 |
| CHLOROBENZENE | MR | 1 | 1993 |
| 1,2-Dichloroethane | MR | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.