Holiday closure: December 24, 2024, to January 1, 2025

Santa Ana City Hall and most City facilities will be closed for the holidays. Learn more here.

Office of Environmental Health Hazard Assessment

The Office of Environmental Health Hazard Assessment (OEHHA) protects and enhances the health of Californians and the State’s environment through scientific evaluations that inform, support and guide regulatory and other actions.

Learn More.

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