Tap water in Tahlequah, OK — ZIP 74464
2 public water systems serving about 17,853 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 74464
Tahlequah Pwa
PWSID OK1021701 · serves 14,458 ·
surface water
3 health-based / 6 total violations (5 yrs)
· PFAS up to 5.7 ppt
Cherokee Co. Rwd #11
PWSID OK1221637 · serves 3,395 ·
surface water
0 health-based / 2 total violations (5 yrs)
· PFAS up to 5.5 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology