Tap water in Hillsboro, OH — ZIP 45123
3 public water systems serving about 68,366 people. PFAS "forever chemicals" have been detected here.
A
Excellent
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 45123
Ross County Water Co Inc
PWSID OH7101412 · serves 35,345 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.1 ppt
Highland County Water Company, Inc.
PWSID OH3600514 · serves 28,421 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Greenfield Village Pws
PWSID OH3600312 · serves 4,600 ·
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