Tap water in Norwalk, CA — ZIP 90650
3 public water systems serving about 135,922 people. PFAS "forever chemicals" have been detected here.
D
Poor
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 90650
Liberty Utilities - Bellflower-Norwalk
PWSID CA1910211 · serves 72,472 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 59 ppt — above federal limit
Gswc - Norwalk
PWSID CA1910098 · serves 43,167 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 15 ppt
Norwalk - City, Water Dept.
PWSID CA1910191 · serves 20,283 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 26 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