WILLOW HAVEN
PWS ID: WI7440623 · HAZELHURST, Wisconsin 54531-9780
Population Served
260
Total Violations
30
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Oneida
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 18
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 12 | 2009 |
| Nitrate | MR | 9 | 2002 |
| Coliform (TCR) | MR | 9 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.