Tap water in Compton, CA — ZIP 90220
5 public water systems serving about 548,904 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 90220
Gswc - Southwest
PWSID CA1910155 · serves 277,740 ·
surface water
0 health-based / 0 total violations (5 yrs)
California Water Service Co. - Dominguez
PWSID CA1910033 · serves 149,490 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.5 ppt
Compton-City, Water Dept.
PWSID CA1910026 · serves 90,986 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 17 ppt — above federal limit
Liberty Utilities - Compton
PWSID CA1910021 · serves 26,316 ·
surface water
0 health-based / 0 total violations (5 yrs)
Suburban Water Systems - Sativa
PWSID CA1910147 · serves 4,372 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 9.4 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