Tap water in Hamilton, OH — ZIP 45011
4 public water systems serving about 225,075 people. PFAS "forever chemicals" have been detected here.
D
Poor
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 45011
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
Hamilton Public Water System
PWSID OH0904012 · serves 62,447 ·
groundwater
0 health-based / 2 total violations (5 yrs)
· PFAS up to 5.3 ppt — above federal limit
Southwest Regional Water District
PWSID OH0903912 · serves 42,856 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.1 ppt
New Miami Village Pws
PWSID OH0902112 · serves 3,200 ·
groundwater
0 health-based / 0 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