Tap water in Rowland Heights, CA — ZIP 91792
2 public water systems serving about 226,623 people. PFAS "forever chemicals" have been detected here.
B
Good
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 91792
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
Rowland Water District
PWSID CA1910194 · serves 56,100 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 10 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology