Teec Nos Pos Community Boarding School BIA
PWS ID: NN0432010 · Teec Nos Pos, Navajo Nation 86514
Population Served
300
Total Violations
96
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 80
- School/Daycare
- Yes
- MCL Violations
- 2
- Monitoring Violations
- 76
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| 2,3,7,8-TCDD | MR | 5 | 2008 |
| Coliform (TCR) | MR | 4 | 2012 |
| Fluoride | MR | 4 | 2008 |
| Nitrate | MR | 3 | 2024 |
| Revised Total Coliform Rule | RPT | 3 | 2023 |
| Nitrite | MR | 3 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2010 |
| Consumer Confidence Rule | Other | 2 | 2005 |
| Gross Alpha, Excl. Radon and U | MCL | 2 | 2012 |
| Endrin | MR | 1 | 2004 |
| Diquat | MR | 1 | 2004 |
| Endothall | MR | 1 | 2004 |
| OXAMYL | MR | 1 | 2004 |
| Simazine | MR | 1 | 2004 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2004 |
| Dinoseb | MR | 1 | 2004 |
| Aldicarb sulfoxide | MR | 1 | 2004 |
| Aldicarb sulfone | MR | 1 | 2004 |
| Carbofuran | MR | 1 | 2004 |
| Atrazine | MR | 1 | 2004 |
| Heptachlor epoxide | MR | 1 | 2004 |
| 2,4-D | MR | 1 | 2004 |
| 2,4,5-TP | MR | 1 | 2004 |
| HEXACHLOROBENZENE | MR | 1 | 2004 |
| Benzo(a)pyrene | MR | 1 | 2004 |
| Pentachlorophenol | MR | 1 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2004 |
| cis-1,2-Dichloroethylene | MR | 1 | 2004 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2004 |
| ETHYLENE DIBROMIDE | MR | 1 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.