Tap water in Pasadena, CA — ZIP 91104
2 public water systems serving about 172,094 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 91104
Pasadena Water And Power
PWSID CA1910124 · serves 165,448 ·
surface water
0 health-based / 0 total violations (5 yrs)
Rubio Canon Land & Water Association
PWSID CA1910140 · serves 6,646 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 19 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