Contact Get in Touch Numbers General Inquiries (925) 238-0316 Email mguzman@useca.us Business Hours Monday — Friday 9am – 5pm Saturday — 10am – 3pm Sunday — Closed Pacific Standard Time Send Us a Message Please enable JavaScript in your browser to complete this form.Name *Phone Number *I would like to contact *Tony Retrosi - ChairmanJohn Wojtczuk - Vice ChairmanMichael Guzman - Sec/TreasurerJohn Min - Video ChairmanChere Hoffman - Chairman EmeritusEmail *MessageCommentSubmit