WINCHESTER HILLS
PWS ID: WY5600779 · CHEYENNE, Wyoming 82003
Population Served
1,078
Total Violations
40
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 423
- County
- Laramie
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 33
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 7 | 2004 |
| Gross Alpha, Excl. Radon and U | MR | 5 | 2011 |
| Nitrate | MR | 4 | 2003 |
| Coliform (TCR) | MCL | 3 | 2001 |
| Chlorine | MR | 3 | 2004 |
| Consumer Confidence Rule | Other | 3 | 2008 |
| Radium-228 | MR | 2 | 2004 |
| Nitrate-Nitrite | MR | 2 | 2000 |
| Radium-226 | MR | 2 | 2004 |
| Combined Uranium | MR | 2 | 2004 |
| Lead and Copper Rule | MR | 2 | 2000 |
| Arsenic | MR | 1 | 1993 |
| p-Dichlorobenzene | MR | 1 | 1993 |
| TTHM | MR | 1 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.