NORTHWESTERN HIGH SCHOOL
PWS ID: WI8160201 · MAPLE, Wisconsin 54854
Population Served
448
Total Violations
14
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Douglas
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 9 | 2014 |
| Lead and Copper Rule | MR | 3 | 1993 |
| Public Notice | Other | 2 | 2007 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.