WI DNR GLACIAL DRUMLIN TRAIL SULLIVAN RST AR
PWS ID: WI1280734 · DELAFIELD, Wisconsin 53018
Population Served
250
Total Violations
107
Health-Based Violations
47
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 43
- Monitoring Violations
- 55
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 37 | 2015 |
| Coliform (TCR) | MR | 23 | 2013 |
| Revised Total Coliform Rule | MON | 16 | 2018 |
| E. COLI | MR | 11 | 2014 |
| Revised Total Coliform Rule | MCL | 6 | 2016 |
| Public Notice | Other | 5 | 2014 |
| Nitrate | MR | 5 | 1996 |
| Groundwater Rule | TT | 4 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.