PlainWater
States09

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.