Need help drafting a job offer letter? You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553.Information and links to various college resources for college employees including faculty, staff and management. Request for Joinder of Employee Benefit Plan Order. FL-374, Notice of Appearance and Response of Employee Benefit Plan. The Civil Unit staff is made up of both sworn and non-sworn staff.