JOHNSON CREEK WATERWORKS
PWS ID: WI1280107 · JOHNSON CREEK, Wisconsin 53038
Population Served
3,318
Total Violations
121
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,228
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 71
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 16 | 2020 |
| Consumer Confidence Rule | Other | 15 | 2024 |
| Combined Uranium | MR | 12 | 2022 |
| Radium-226 | MR | 10 | 1998 |
| Radium-228 | MR | 10 | 1998 |
| Combined Radium (-226 and -228) | MR | 10 | 1998 |
| Gross Alpha, Excl. Radon and U | MR | 10 | 1998 |
| Public Notice | Other | 9 | 2024 |
| Combined Radium (-226 and -228) | MCL | 9 | 1996 |
| Gross Alpha, Excl. Radon and U | MCL | 6 | 2001 |
| Coliform (TCR) | MCL | 5 | 2003 |
| Revised Total Coliform Rule | MON | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.