East Decker Coal Mine
PWSID: MT0000953
System Details
| Population Served | 28 |
| Service Connections | 3 |
| Water Source | Groundwater |
| System Type | Non-Transient Non-Community |
| Owner | Private |
| Status | Active |
| City | Decker |
| Zip Code | 59025 |
Areas Served
- Decker, Big Horn County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0003 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (12 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2025-06-01 | Major | Returned to Compliance | ||
| 2025-03-01 | Major | Returned to Compliance | ||
| 2023-10-01 | Returned to Compliance | |||
| 2023-10-01 | Returned to Compliance | |||
| 2023-10-01 | Returned to Compliance | |||
| 2023-10-01 | Returned to Compliance | |||
| 2023-07-01 | Major | Returned to Compliance | ||
| 2023-07-01 | Major | Returned to Compliance | ||
| 2023-07-01 | Major | Returned to Compliance | ||
| 2021-10-01 | Major | Returned to Compliance | ||
| 2010-01-01 | Returned to Compliance | |||
| 2010-01-01 | Returned to Compliance |