Helena Water System
PWSID MT0000241 · Helena, Montana · serves 32,091 people · surface water source
F
Failing
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-01-01 | Total Haloacetic Acids (HAA5) | MCL | Yes | Resolved |
| 2022-10-01 | Total Haloacetic Acids (HAA5) | MCL | Yes | Resolved |
| 2022-07-01 | Total Haloacetic Acids (HAA5) | MCL | Yes | Resolved |