Tap water in Knoxville, TN — ZIP 37921
3 public water systems serving about 349,515 people. PFAS "forever chemicals" have been detected here.
B
Good
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 37921
Knoxville Utilities Board - Kub
PWSID TN0000366 · serves 254,671 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.7 ppt
Hallsdale-Powell U.d.
PWSID TN0000280 · serves 84,315 ·
surface water
0 health-based / 0 total violations (5 yrs)
Luttrell-Blaine-Corryton U.d.
PWSID TN0000415 · serves 10,529 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 6.1 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology