Tap water in Ft Defiance, AZ — ZIP 86504
11 public water systems serving about 70,223 people. PFAS "forever chemicals" have been detected here.
F
Failing
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 86504
Farmington Rural-Shiprock-Beclabito Ntua
PWSID NN3500245 · serves 15,233 ·
surface water
0 health-based / 2 total violations (5 yrs)
Fort Defiance-Window Rock-St Michaels Ntua
PWSID NN0403000 · serves 12,869 ·
groundwater
2 health-based / 4 total violations (5 yrs)
Chinle-Many Farms-Del Muerto Ntua
PWSID NN0400174 · serves 8,458 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Tuba City Ntua
PWSID NN0400206 · serves 6,276 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Pinon-District 4 Ntua
PWSID NN0403004 · serves 5,195 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Dilkon-Indian Wells-Greasewood-White Cone Ntua
PWSID NN0400342 · serves 4,986 ·
groundwater
9 health-based / 12 total violations (5 yrs)
Mariano Lake-Pinedale-Church Rock Ntua
PWSID NN3500211 · serves 4,562 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Crownpoint-Littlewater-Three Mile Point Ntua
PWSID NN3503039 · serves 3,950 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Ganado-Burnside-Cornfield-Steamboat Ntua
PWSID NN0403001 · serves 3,947 ·
groundwater
0 health-based / 2 total violations (5 yrs)
· PFAS up to 6.1 ppt
Kayenta Ntua
PWSID NN0403003 · serves 3,844 ·
groundwater
0 health-based / 2 total violations (5 yrs)
· PFAS up to 5.1 ppt
Toadlena Ntua
PWSID NN3503028 · serves 903 ·
groundwater
15 health-based / 21 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology