Tap water in Union, OH — ZIP 45377
3 public water systems serving about 178,381 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 45377
Dayton Public Water System
PWSID OH5703512 · serves 141,407 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 10 ppt — above federal limit
Nawa
PWSID OH5553612 · serves 29,974 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Union City Pws
PWSID OH5702512 · serves 7,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 20 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology