Tap water in Tigard, OR — ZIP 97140
2 public water systems serving about 83,281 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 97140
Tigard, City Of
PWSID OR4100878 · serves 62,500 ·
surface water
0 health-based / 12 total violations (5 yrs)
Sherwood, City Of
PWSID OR4100816 · serves 20,781 ·
surface water
0 health-based / 2 total violations (5 yrs)
· PFAS up to 41.3 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology