WI DNR PATTISON RESERVOIR
PWS ID: WI8160154 · SOUTH RANGE, Wisconsin 54874
Population Served
25
Total Violations
78
Health-Based Violations
33
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Douglas
- School/Daycare
- No
- MCL Violations
- 33
- Monitoring Violations
- 37
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 33 | 1997 |
| Coliform (TCR) | MR | 14 | 2015 |
| Revised Total Coliform Rule | MON | 12 | 2017 |
| Nitrate | MR | 11 | 2016 |
| Public Notice | Other | 5 | 2010 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.