Colstrip City of
PWSID: MT0000180
System Details
| Population Served | 2,350 |
| Service Connections | 913 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Colstrip |
| Zip Code | 59323 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0040 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0030 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
Violation History (28 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2024-07-01 | Yes | Returned to Compliance |
| | 2024-07-01 | Yes | Returned to Compliance |
| | 2024-07-01 | Yes | Acknowledged |
| | 2024-07-01 | Yes | Returned to Compliance |
| | 2024-07-01 | Yes | Acknowledged |
| | 2024-07-01 | Yes | Returned to Compliance |
| | 2024-01-01 | | Returned to Compliance |
| | 2024-01-01 | | Returned to Compliance |
| | 2024-01-01 | | Acknowledged |
| | 2024-01-01 | | Returned to Compliance |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2022-05-01 | Major | Returned to Compliance |
| | 2022-05-01 | Major | Returned to Compliance |
| | 2001-10-01 | | Returned to Compliance |