Tap water in Columbus, OH — ZIP 43123
2 public water systems serving about 1,311,068 people. PFAS "forever chemicals" have been detected here.
C
Fair
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 43123
Columbus Public Water System
PWSID OH2504412 · serves 1,309,468 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 18.2 ppt — above federal limit
Timberlake Water System
PWSID OH2501812 · serves 1,600 ·
groundwater
1 health-based / 3 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