Santa Ana, CA water quality
Santa Ana, CA is served by 2 public water systems, serving 420,539 people combined. Across those systems, we count 0 health-based violations in the last 5 years. The worst Tap Grade among them is C.
Water systems serving Santa Ana
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Is Santa Ana, CA tap water safe to drink?
2 public water systems serve Santa Ana, CA, with 0 health-based violations in the last 5 years across them. The worst Tap Grade among them is C.
Does Santa Ana's water have lead in it?
The most recent 90th-percentile lead sample is 0 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in Santa Ana's water?
Yes — at least one water system serving Santa Ana has detected PFAS under UCMR5.
Other cities in California
See all of California →Source: EPA SDWIS/ECHO · Data as of 2026Q2