Tap water in San Jose, CA — ZIP 90040
4 public water systems serving about 204,519 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 90040
California Water Service Co. - Ela
PWSID CA1910036 · serves 142,140 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 12.9 ppt — above federal limit
Gswc - Bell, Bell Gardens
PWSID CA1910011 · serves 55,050 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 15 ppt — above federal limit
San Gabriel Valley Water Co-Montebello 2
PWSID CA1910117 · serves 3,731 ·
surface water
0 health-based / 0 total violations (5 yrs)
Commerce-City, Water Dept.
PWSID CA1910050 · serves 3,598 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 17.4 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