County NN017 County, Navajo Nation

Water Systems

Population Served

26,234

Total Violations

4,391

PFAS Detected

of 4 tested

Water Systems

System Name	Population	Violations	PFAS
Pinon-District 4 NTUA	5,195	59	Detected
Dilkon-Indian Wells-Greasewood-White Cone NTUA	4,986	223	Detected
Kayenta NTUA	3,844	258	Detected
Kayenta Sandstone Housing	1,375	304	—
Chilchinbeto NTUA	1,276	50	—
Shonto Junction NTUA	1,146	57	—
Jeddito NTUA	1,105	121	—
Hard Rock NTUA	982	74	—
Greasewood Springs Community Boarding School BIA	720	216	Detected
Shonto Preparatory Boarding School BIA	664	106	—
Kayenta Community Boarding School BIA	500	124	—
Pinon Community Dormitory School BIA	500	37	—
Dilcon Community Boarding School BIA	473	114	—
Peabody Western Coal Company - Black Mesa Mines	420	106	—
Kitsillie-Black Mesa NTUA	414	35	—
Shonto NTUA	397	35	—
Low Mountain Boarding School BIA	339	163	—
Long House Valley NTUA	277	33	—
Monument Valley Navajo Tribal Park	275	117	—
Rocky Ridge Boarding School BIA	250	163	—
Seba Dalkai Boarding School BIA	250	191	—
Forest Lake NTUA	233	45	—
White Post Mission NTUA	185	1,145	—
Cottonwood Day School BIA	185	113	—
Chilchinbeto Community Day School BIA	138	143	—
Sanostee (New) Day School BIA	80	11	—
Navajo National Monument	25	348	—