Tap water in Hamilton, OH — ZIP 45241
2 public water systems serving about 916,572 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 45241
Cincinnati Public Water System
PWSID OH3102612 · serves 800,000 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 6.1 ppt — above federal limit
Butler Co. Water District 2 Pws
PWSID OH0900303 · serves 116,572 ·
surface water
0 health-based / 2 total violations (5 yrs)
· PFAS up to 4.7 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology