Tap water in Paso Robles, CA — ZIP 93446
2 public water systems serving about 34,132 people. PFAS "forever chemicals" have been detected here.
F
Failing
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 93446
City Of Paso Robles Water Division
PWSID CA4010007 · serves 31,176 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 22 ppt — above federal limit
Heritage Ranch Csd
PWSID CA4010012 · serves 2,956 ·
surface water
10 health-based / 10 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology