Tap water in Hawthorne, CA — ZIP 90222
4 public water systems serving about 319,221 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 90222
Gswc - Southwest
PWSID CA1910155 · serves 277,740 ·
surface water
0 health-based / 0 total violations (5 yrs)
Liberty Utilities - Compton
PWSID CA1910021 · serves 26,316 ·
surface water
0 health-based / 0 total violations (5 yrs)
Gswc - Willowbrook
PWSID CA1910072 · serves 10,793 ·
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