Hawthorne, CA water quality
Hawthorne, CA is served by 2 public water systems, serving 322,458 people combined. Across those systems, we count 0 health-based violations in the last 5 years. The worst Tap Grade among them is A.
Water systems serving Hawthorne
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Is Hawthorne, CA tap water safe to drink?
2 public water systems serve Hawthorne, CA, with 0 health-based violations in the last 5 years across them. The worst Tap Grade among them is A.
Does Hawthorne'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 Hawthorne's water?
These systems were tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.
Other cities in California
See all of California →Source: EPA SDWIS/ECHO · Data as of 2026Q2