Miles City City of
PWSID: MT0000291
System Details
| Population Served | 9,565 |
| Service Connections | 3,724 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Miles City |
| Zip Code | 59301 |
Areas Served
- Miles City, Custer County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0030 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 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 (18 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-08-01 | Major | Acknowledged |
| | 2025-08-01 | Major | Acknowledged |
| | 2025-07-01 | Major | Acknowledged |
| | 2025-07-01 | Major | Acknowledged |
| | 2023-08-01 | Yes | Acknowledged |
| | 2023-08-01 | Yes | Acknowledged |
| | 2023-08-01 | Yes | Acknowledged |
| | 2023-08-01 | Yes | Acknowledged |
| | 2022-12-01 | Major | Returned to Compliance |
| | 2022-12-01 | Major | Returned to Compliance |
| | 2022-12-01 | Major | Returned to Compliance |
| | 2022-09-01 | Yes | Returned to Compliance |
| | 2022-09-01 | Yes | Returned to Compliance |
| | 2022-09-01 | Yes | Returned to Compliance |
| | 2022-08-01 | Yes | Returned to Compliance |
| | 2022-08-01 | Yes | Returned to Compliance |
| | 2022-08-01 | Yes | Returned to Compliance |
| | 2018-07-01 | | Returned to Compliance |