Is Yorba Linda, California tap water safe?
3 water systems report serving Yorba Linda. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
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Yorba Linda Water District
Serves 84,292 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
C
Golden State WC - Placentia/Yorba Linda
Serves 50,804 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2025).
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Oak Glen Retreat
Serves 65 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).