Tap water in Trabuco Canyon, CA — ZIP 92679
4 public water systems serving about 630,107 people. PFAS "forever chemicals" have been detected here.
A
Excellent
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 92679
Irvine Ranch Water District
PWSID CA3010092 · serves 450,323 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 7.9 ppt
Santa Margarita Water District
PWSID CA3010101 · serves 165,275 ·
surface water
0 health-based / 0 total violations (5 yrs)
Trabuco Canyon Water District
PWSID CA3010094 · serves 13,659 ·
surface water
0 health-based / 0 total violations (5 yrs)
Kohala Ranch Water Co.
PWSID HI0000151 · serves 850 ·
groundwater
0 health-based / 0 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