PlainWater
States → Navajo Nation

Iyanbito NTUA

PWS ID: NN3500258 · Ft Defiance, Navajo Nation 86504

Population Served
797
Total Violations
146
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
233
School/Daycare
No
MCL Violations
0
Monitoring Violations
133
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 7 2020
Nitrite MR 7 2020
Coliform (TCR) MR 6 2014
Barium MR 3 2008
Cadmium MR 3 2008
CYANIDE MR 3 2008
Mercury MR 3 2008
Antimony, Total MR 3 2008
Beryllium, Total MR 3 2008
TTHM MR 3 2020
Thallium, Total MR 3 2008
Chromium MR 3 2008
Fluoride MR 3 2008
Arsenic MR 3 2008
Total Haloacetic Acids (HAA5) MR 3 2020
Selenium MR 3 2008
1,2,4-Trichlorobenzene MR 2 2008
cis-1,2-Dichloroethylene MR 2 2008
Xylenes, Total MR 2 2008
DICHLOROMETHANE MR 2 2008
p-Dichlorobenzene MR 2 2008
Vinyl chloride MR 2 2008
1,1-Dichloroethylene MR 2 2008
trans-1,2-Dichloroethylene MR 2 2008
1,2-Dichloroethane MR 2 2008
1,1,1-Trichloroethane MR 2 2008
Carbon tetrachloride MR 2 2008
1,2-Dichloropropane MR 2 2008
Trichloroethylene MR 2 2008
1,1,2-Trichloroethane MR 2 2008
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.