Butte Silverbow Water Dept
PWSID: MT0000170
System Details
| Population Served | 33,000 |
| Service Connections | 12,958 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Butte |
| Zip Code | 59701 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0039 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0038 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0028 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 |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-10-01 | | Open |
Violation History (10 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2012-04-24 | Yes | Returned to Compliance |