COAL BASIN DWUA
PWS ID: NM3508217 · GALLUP, New Mexico 87305
Population Served
116
Total Violations
309
Health-Based Violations
110
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 34
- County
- McKinley
- School/Daycare
- No
- MCL Violations
- 65
- Monitoring Violations
- 111
- Treatment Tech Violations
- 45
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 63 | 2008 |
| Coliform (TCR) | MR | 45 | 2015 |
| Groundwater Rule | TT | 45 | 2024 |
| Chlorine | MR | 37 | 2016 |
| Public Notice | Other | 24 | 2020 |
| Consumer Confidence Rule | Other | 10 | 2011 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2014 |
| TTHM | MR | 8 | 2014 |
| Groundwater Rule | Other | 8 | 2019 |
| Coliform (TCR) | Other | 6 | 2001 |
| Lead and Copper Rule | MR | 6 | 2023 |
| Asbestos | MR | 4 | 2011 |
| Revised Total Coliform Rule | Other | 4 | 2016 |
| Revised Total Coliform Rule | MON | 3 | 2016 |
| Selenium | MCL | 2 | 1983 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.