💧 ZIP Water Report

Tap water in Pomona, CA — ZIP 91709

2 public water systems serving about 228,027 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 91709

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
C
Chino Hills, City Of
PWSID CA3610036 · serves 76,314 · surface water
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology