REGINA MDWCA
PWS ID: NM3509523 · LOS ALAMOS, New Mexico 87544
Population Served
705
Total Violations
309
Health-Based Violations
141
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 260
- County
- Sandoval
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 97
- Treatment Tech Violations
- 132
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | TT | 132 | 2024 |
| Revised Total Coliform Rule | MON | 45 | 2017 |
| Public Notice | Other | 21 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 18 | 2018 |
| TTHM | MR | 18 | 2018 |
| Consumer Confidence Rule | Other | 18 | 2025 |
| Coliform (TCR) | MCL | 9 | 2003 |
| Lead and Copper Rule | MR | 8 | 2016 |
| Coliform (TCR) | MR | 4 | 2015 |
| Revised Total Coliform Rule | Other | 3 | 2016 |
| Asbestos | MR | 3 | 2020 |
| Groundwater Rule | Other | 3 | 2024 |
| Nitrate-Nitrite | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.