Tap water in El Monte, CA — ZIP 91790
3 public water systems serving about 520,567 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 91790
San Gabriel Valley Water Co.-El Monte
PWSID CA1910039 · serves 240,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 10 ppt
Suburban Water Systems-San Jose
PWSID CA1910205 · serves 170,523 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 6.2 ppt
Azusa Light And Water
PWSID CA1910007 · serves 110,044 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 7.7 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