Lewistown City of
PWSID: MT0000271
System Details
| Population Served | 5,923 |
| Service Connections | 2,906 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Lewistown |
| Zip Code | 59457 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0050 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 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 (64 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Returned to Compliance |
| | 2017-11-15 | Major | Returned to Compliance |
| | 2017-07-01 | | Returned to Compliance |
| | 2016-11-23 | Major | Returned to Compliance |
| | 2016-03-01 | Yes | Returned to Compliance |
| | 2015-12-01 | Yes | Returned to Compliance |
| | 2015-07-01 | | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
Showing 50 of 64 historical violations.