Hermosa-old System
PWSID: SD4600154
System Details
| Population Served | 420 |
| Service Connections | 277 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Hermosa |
| Zip Code | 57744 |
Areas Served
- Hermosa, Custer County, 57744
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0070 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 (10 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-04-01 | Major | Acknowledged |
| | 2025-04-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2010-02-01 | Yes | Returned to Compliance |
| | 2004-07-01 | | Returned to Compliance |