From NAMI  Orange County website: 

OC Navigator: helping in Orange County by connecting with health, wellness, and other resources. Available in English, Spanish and Vietnamese (https://ocnavigator.org/m/ocn)

OC Links Behavioral Health Line is available 24/7 at (855) 625-4657. OC Links provides information and linkage to any of the Health Care Agency's Behavioral Health Services, including crisis services, via telephone and chat

E.T.S Evaluation and Treatment Services: 714-834-6900 24-hour service.

UCI Psychiatric Emergency714-456-5801 - 24-hour screening service.

Medi-Cal Emergency Access: 1-800-723-8641 - Available 24-hours.