Tap water in Sonoma, CA — ZIP 95476
2 public water systems serving about 33,759 people. PFAS "forever chemicals" have been detected here.
D
Poor
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 95476
Valley Of The Moon Water District
PWSID CA4910013 · serves 23,140 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.4 ppt — above federal limit
Sonoma, City Of
PWSID CA4910012 · serves 10,619 ·
groundwater
0 health-based / 1 total violations (5 yrs)
· PFAS up to 6.2 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