GRANT TOWNSHIP - COPPER HARBOR
PWS ID: MI0001630 · COPPER HARBOR, Michigan 49918
Population Served
200
Total Violations
43
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 192
- County
- Keweenaw
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 21
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 8 | 1995 |
| Chlorine | MR | 4 | 2023 |
| Lead and Copper Rule | TT | 4 | 2024 |
| Revised Total Coliform Rule | MON | 4 | 2019 |
| Coliform (TCR) | MR | 4 | 1992 |
| TTHM | MR | 3 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2015 |
| Lead and Copper Rule | MR | 3 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.