PORT WING SANITARY DISTRICT
PWS ID: WI8040094 · Port Wing, Wisconsin 54865
Population Served
400
Total Violations
96
Health-Based Violations
41
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 148
- County
- Bayfield
- School/Daycare
- No
- MCL Violations
- 41
- Monitoring Violations
- 50
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 41 | 2014 |
| Nitrate | MR | 13 | 1995 |
| Coliform (TCR) | MR | 10 | 1998 |
| Lead and Copper Rule | MR | 7 | 2014 |
| Consumer Confidence Rule | Other | 2 | 2022 |
| cis-1,2-Dichloroethylene | MR | 1 | 1993 |
| Xylenes, Total | MR | 1 | 1993 |
| o-Dichlorobenzene | MR | 1 | 1993 |
| 1,1,1-Trichloroethane | MR | 1 | 1993 |
| Carbon tetrachloride | MR | 1 | 1993 |
| 1,2-Dichloropropane | MR | 1 | 1993 |
| CHLOROBENZENE | MR | 1 | 1993 |
| Benzene | MR | 1 | 1993 |
| trans-1,2-Dichloroethylene | MR | 1 | 1993 |
| Toluene | MR | 1 | 1993 |
| Trichloroethylene | MR | 1 | 1993 |
| 1,1,2-Trichloroethane | MR | 1 | 1993 |
| 1,1-Dichloroethylene | MR | 1 | 1993 |
| Ethylbenzene | MR | 1 | 1993 |
| 1,2-Dichloroethane | MR | 1 | 1993 |
| Vinyl chloride | MR | 1 | 1993 |
| p-Dichlorobenzene | MR | 1 | 1993 |
| Tetrachloroethylene | MR | 1 | 1993 |
| DICHLOROMETHANE | MR | 1 | 1993 |
| Styrene | MR | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.