Tap water in Rosemead, CA — ZIP 91780
5 public water systems serving about 116,980 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 91780
Cal/Am Water Company - San Marino
PWSID CA1910139 · serves 48,065 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.3 ppt
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)
Bryan Co. Rws & Swmd #2
PWSID OK1010604 · serves 6,270 ·
surface water
3 health-based / 9 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