PlainWater

Shonto Junction NTUA

PWS ID: NN0400326 · Ft Defiance, Navajo Nation 86504

Population Served
1,146
Total Violations
57
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
335
School/Daycare
No
MCL Violations
0
Monitoring Violations
46
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 2012
Nitrite MR 4 2015
TTHM MR 3 2020
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 3 2013
Nitrate MR 3 2015
Total Haloacetic Acids (HAA5) MR 3 2020
Revised Total Coliform Rule Other 2 2016
1,2,4-Trichlorobenzene MR 1 2005
cis-1,2-Dichloroethylene MR 1 2005
Xylenes, Total MR 1 2005
DICHLOROMETHANE MR 1 2005
1,1-Dichloroethylene MR 1 2005
1,2-Dichloroethane MR 1 2005
1,1,1-Trichloroethane MR 1 2005
CHLOROBENZENE MR 1 2005
Toluene MR 1 2005
Revised Total Coliform Rule TT 1 2017
Public Notice Other 1 2017
Benzene MR 1 2005
trans-1,2-Dichloroethylene MR 1 2005
1,2-Dichloropropane MR 1 2005
1,1,2-Trichloroethane MR 1 2005
Styrene MR 1 2005
Ethylbenzene MR 1 2005
p-Dichlorobenzene MR 1 2005
Trichloroethylene MR 1 2005
Vinyl chloride MR 1 2005
o-Dichlorobenzene MR 1 2005
Tetrachloroethylene MR 1 2005
Carbon tetrachloride MR 1 2005
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.