GRESHAM WATERWORKS
PWS ID: WI4590454 · GRESHAM, Wisconsin 54128
Population Served
534
Total Violations
236
Health-Based Violations
25
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 285
- County
- Shawano
- School/Daycare
- No
- MCL Violations
- 23
- Monitoring Violations
- 192
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Gross Alpha, Excl. Radon and U | MR | 28 | 2025 |
| Radium-226 | MR | 20 | 2024 |
| Radium-228 | MR | 20 | 2024 |
| Coliform (TCR) | MCL | 13 | 2002 |
| Revised Total Coliform Rule | MON | 12 | 2019 |
| Consumer Confidence Rule | Other | 10 | 2022 |
| Gross Alpha, Excl. Radon and U | MCL | 10 | 1998 |
| Coliform (TCR) | MR | 9 | 1998 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2014 |
| Antimony, Total | MR | 4 | 2020 |
| Atrazine | MR | 4 | 1993 |
| cis-1,2-Dichloroethylene | MR | 4 | 1997 |
| Xylenes, Total | MR | 4 | 1997 |
| o-Dichlorobenzene | MR | 4 | 1997 |
| 1,1-Dichloroethylene | MR | 4 | 1997 |
| 1,2-Dichloropropane | MR | 4 | 1997 |
| Tetrachloroethylene | MR | 4 | 1997 |
| Styrene | MR | 4 | 1997 |
| Vinyl chloride | MR | 4 | 1997 |
| 1,2-Dichloroethane | MR | 4 | 1997 |
| p-Dichlorobenzene | MR | 4 | 1997 |
| CHLOROBENZENE | MR | 4 | 1997 |
| DICHLOROMETHANE | MR | 4 | 1997 |
| Toluene | MR | 4 | 1997 |
| TTHM | MR | 4 | 2014 |
| 1,2,4-Trichlorobenzene | MR | 4 | 1997 |
| 1,1,2-Trichloroethane | MR | 4 | 1997 |
| 1,1,1-Trichloroethane | MR | 4 | 1997 |
| trans-1,2-Dichloroethylene | MR | 4 | 1997 |
| Trichloroethylene | MR | 4 | 1997 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.