Tap water in Chino, CA — ZIP 91710
4 public water systems serving about 308,957 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 91710
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
Chino, City Of
PWSID CA3610012 · serves 90,187 ·
surface water
0 health-based / 0 total violations (5 yrs)
Monte Vista Wd
PWSID CA3610029 · serves 56,390 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 11 ppt — above federal limit
California Institution For Men
PWSID CA3610850 · serves 10,667 ·
groundwater
4 health-based / 4 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