NPS CALLVILLE BAY
PWS ID: NV0002506 · BOULDER CITY, Nevada 89005
Population Served
250
Total Violations
116
Health-Based Violations
46
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 152
- County
- Clark
- School/Daycare
- No
- MCL Violations
- 46
- Monitoring Violations
- 55
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 46 | 2010 |
| Chlorine | MR | 12 | 2023 |
| CYANIDE | MR | 6 | 2012 |
| Ethylbenzene | MR | 6 | 2024 |
| Xylenes, Total | MR | 6 | 2024 |
| Surface Water Treatment Rule | MR | 5 | 2005 |
| Lead and Copper Rule | MR | 4 | 2001 |
| Consumer Confidence Rule | Other | 4 | 2021 |
| Coliform (Pre-TCR) | Other | 4 | 1986 |
| Antimony, Total | MR | 3 | 2001 |
| Beryllium, Total | MR | 3 | 2001 |
| Nitrate | MR | 3 | 2019 |
| Nickel | MR | 3 | 2001 |
| Thallium, Total | MR | 3 | 2001 |
| Coliform (TCR) | MR | 1 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.