Tap water in Pomona, CA — ZIP 91768
2 public water systems serving about 154,381 people. PFAS "forever chemicals" have been detected here.
F
Failing
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 91768
Pomona - City, Water Dept.
PWSID CA1910126 · serves 151,713 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 18 ppt — above federal limit
Calif State Polytechnical Univ - Pomona
PWSID CA1910022 · serves 2,668 ·
surface water
2 health-based / 3 total violations (5 yrs)
· PFAS up to 6.3 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology