CHACO CULTURE NATIONAL HISTORIC PARK
PWS ID: NM3590324 · AZTEC, New Mexico 87410
Population Served
250
Total Violations
383
Health-Based Violations
70
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Federal
- Connections
- 21
- County
- San Juan
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 123
- Treatment Tech Violations
- 61
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | TT | 59 | 2019 |
| Chlorine | MR | 53 | 2023 |
| Public Notice | Other | 17 | 2024 |
| Revised Total Coliform Rule | MON | 16 | 2017 |
| Nitrate | MR | 13 | 2005 |
| TTHM | MR | 12 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2019 |
| Coliform (TCR) | MR | 7 | 2015 |
| Revised Total Coliform Rule | MCL | 5 | 2017 |
| Coliform (TCR) | MCL | 4 | 2003 |
| E. COLI | MR | 4 | 2011 |
| Revised Total Coliform Rule | Other | 4 | 2016 |
| Groundwater Rule | Other | 4 | 2019 |
| Asbestos | MR | 3 | 2020 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Lead and Copper Rule | MR | 2 | 2006 |
| Nitrate-Nitrite | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.