LONE ROCK WATERWORKS
PWS ID: WI1530061 · LONE ROCK, Wisconsin 53556-0338
Population Served
895
Total Violations
52
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 267
- County
- Richland
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 37
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 12 | 2012 |
| Coliform (TCR) | MCL | 8 | 2016 |
| Radium-228 | MR | 6 | 2009 |
| Lead and Copper Rule | MR | 6 | 2021 |
| Gross Alpha, Excl. Radon and U | MR | 5 | 1995 |
| Lead and Copper Rule | TT | 4 | 2020 |
| Nitrate | MR | 4 | 2023 |
| Combined Radium (-226 and -228) | MR | 2 | 1994 |
| Radium-226 | MR | 2 | 1994 |
| Consumer Confidence Rule | Other | 1 | 2012 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.