Granite Park Water Association
PWSID: MT0004563
System Details
| Population Served | 250 |
| Service Connections | 120 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Private |
| Status | Active |
| City | Billings |
| Zip Code | 59101 |
Areas Served
- Billings, Yellowstone County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0040 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 |
|---|
| | 2024-01-01 | Yes | Acknowledged |
| | 2024-01-01 | Yes | Acknowledged |
| | 2024-01-01 | Yes | Acknowledged |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-04-01 | Major | Returned to Compliance |
| | 2023-04-01 | Major | Acknowledged |
| | 2023-04-01 | Major | Returned to Compliance |
| | 2020-09-07 | Major | Returned to Compliance |
| | 2020-09-07 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2016-11-03 | Major | Returned to Compliance |
| | 2016-11-03 | Major | Returned to Compliance |
| | 2015-01-01 | Major | Returned to Compliance |
| | 2014-12-30 | | Returned to Compliance |