Tap water in San Dimas, CA — ZIP 91007
3 public water systems serving about 62,645 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 91007
Gswc-South Arcadia
PWSID CA1910212 · serves 27,430 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 22 ppt — above federal limit
Sunny Slope Water Co.
PWSID CA1910157 · serves 25,252 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Cal-Am Water Company - East Pasadena
PWSID CA1910020 · serves 9,963 ·
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