The Department is organized into four divisions that provide a full range of Human Resources services to County Departments, employees, and the public. Our firm helps HR professionals in the Bay Area create and tailor HR policies to respond to the unique needs of their businesses.If you have questions about labor law, just pick up the phone and call1-888-599-7645. The hotline is staffed Monday-Friday from am to 5 pm. Company Name Contra Costa County Human Resources Department. Address 651 Pine Street, 2nd Floor, Martinez, CA, 94553, United States. Employees are required to complete all Disaster Service Worker-related training as assigned, and to return to work as ordered in the event of an emergency. This department manual section provides a copy of the procedural guidelines for remote work for all Contra Costa County employees. All Contra Costa County employees are designated Disaster Service Workers through state and local law. Work for all Contra Costa County employees.