HOLYOKE CITY OF
PWS ID: CO0148005 · HOLYOKE, Colorado 80734
Population Served
2,540
Total Violations
30
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,129
- County
- Phillips
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 20
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Diquat | MR | 12 | 2011 |
| Coliform (TCR) | MCL | 9 | 1994 |
| TTHM | MR | 4 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.