Great Falls City of
PWSID: MT0000525
System Details
| Population Served | 60,000 |
| Service Connections | 22,477 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Great Falls |
| Zip Code | 59403 |
Areas Served
- Great Falls, Cascade County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0100 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0090 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0090 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0080 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0080 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0070 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0050 mg/L | 0.015 mg/L | Below Action Level |
| 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 |
Violation History (5 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2019-04-01 | Yes | Returned to Compliance |
| | 2019-01-01 | Yes | Returned to Compliance |
| | 2018-10-01 | Yes | Returned to Compliance |
| | 2018-07-01 | Yes | Returned to Compliance |
| | 2018-04-01 | Yes | Returned to Compliance |