MATTERHORN CG
PWS ID: CO0357500 · DELTA, Colorado 81416
Population Served
50
Total Violations
89
Health-Based Violations
28
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 15
- County
- San Miguel
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 58
- Treatment Tech Violations
- 28
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 31 | 2019 |
| Surface Water Treatment Rule | TT | 28 | 2016 |
| Interim Enhanced Surface Water Treatment Rule | MR | 24 | 2019 |
| Coliform (TCR) | MR | 3 | 2004 |
| Revised Total Coliform Rule | RPT | 3 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.