Tap water in Riverside, CA — ZIP 92870
3 public water systems serving about 223,051 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 92870
Western Mwd
PWSID CA3310049 · serves 87,955 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.7 ppt
Yorba Linda Water District
PWSID CA3010037 · serves 84,292 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 20.6 ppt
Golden State Wc - Placentia/Yorba Linda
PWSID CA3010035 · serves 50,804 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 10.9 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