Dzilthnaodithhle Boarding School - BIE
PWS ID: 093534024 · Window Rock, 09 86515
Population Served
400
Total Violations
40
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 98
- School/Daycare
- Yes
- MCL Violations
- 1
- Monitoring Violations
- 30
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 6 | 2023 |
| Nitrate | MR | 4 | 2024 |
| Lead and Copper Rule | MR | 3 | 2025 |
| Coliform (TCR) | MR | 2 | 2002 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2024 |
| E. COLI | MR | 2 | 2020 |
| TTHM | MR | 2 | 2024 |
| Arsenic | MR | 1 | 2001 |
| Barium | MR | 1 | 2001 |
| Cadmium | MR | 1 | 2001 |
| Chromium | MR | 1 | 2001 |
| Selenium | MR | 1 | 2001 |
| Beryllium, Total | MR | 1 | 2001 |
| Carbofuran | MR | 1 | 2001 |
| Antimony, Total | MR | 1 | 2001 |
| Thallium, Total | MR | 1 | 2001 |
| DICHLOROMETHANE | MR | 1 | 2001 |
| Coliform (TCR) | MCL | 1 | 2016 |
| Xylenes, Total | MR | 1 | 2001 |
| trans-1,2-Dichloroethylene | MR | 1 | 2001 |
| Mercury | MR | 1 | 2001 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2001 |
| OXAMYL | MR | 1 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.