Hopi High School - BIA
PWS ID: 090400395 · Keams Canyon, 09 86043
Population Served
1,150
Total Violations
316
Health-Based Violations
66
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 58
- School/Daycare
- Yes
- MCL Violations
- 64
- Monitoring Violations
- 165
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 42 | 2023 |
| Coliform (TCR) | MR | 35 | 2015 |
| Arsenic | MR | 26 | 2025 |
| Fluoride | MR | 18 | 2025 |
| Coliform (TCR) | MCL | 17 | 2015 |
| Public Notice | Other | 12 | 2025 |
| Nitrate | MR | 9 | 2024 |
| Chlorine | MR | 9 | 2025 |
| E. COLI | MR | 9 | 2022 |
| Lead and Copper Rule | MR | 9 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 7 | 2023 |
| TTHM | MR | 7 | 2023 |
| Revised Total Coliform Rule | MON | 6 | 2025 |
| Fluoride | MCL | 4 | 2025 |
| Combined Uranium | MR | 4 | 2008 |
| Revised Total Coliform Rule | RPT | 4 | 2023 |
| Consumer Confidence Rule | Other | 2 | 2005 |
| Combined Uranium | MCL | 1 | 2007 |
| Barium | MR | 1 | 2017 |
| Beryllium, Total | MR | 1 | 2017 |
| 2,3,7,8-TCDD | MR | 1 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2014 |
| cis-1,2-Dichloroethylene | MR | 1 | 2014 |
| Xylenes, Total | MR | 1 | 2014 |
| o-Dichlorobenzene | MR | 1 | 2014 |
| 1,1-Dichloroethylene | MR | 1 | 2014 |
| Trichloroethylene | MR | 1 | 2014 |
| 1,1,1-Trichloroethane | MR | 1 | 2014 |
| Carbon tetrachloride | MR | 1 | 2014 |
| 1,1,2-Trichloroethane | MR | 1 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.