Nps-mount Rushmore National Memorial
PWSID: SD4680046
System Details
| Population Served | 4,100 |
| Service Connections | 19 |
| Water Source | Groundwater |
| System Type | Non-Transient Non-Community |
| Owner | Federal |
| Status | Active |
| City | Keystone |
| Zip Code | 57751 |
Areas Served
- Keystone, Pennington County, 57751
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0060 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) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
Violation History (2 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2022-02-01 | Returned to Compliance | |||
| 2022-02-01 | Returned to Compliance |