The Board of Supervisors holds regular meetings at the County Administration Building, 1025 Escobar Street, Martinez. The Board of Supervisors has adopted these programs to enable small and local businesses to compete for a share of the County's purchasing transactions.The Workforce Development Board of Contra Costa County offers a variety of services to help job seekers looking for employment and career opportunities. The Contra Costa Board of Education uses BoardDocs, an online meeting records system. The Board of Directors holds regular Board meetings twice monthly, every first and third Thursday at p.m. Find information about Board and Committee Meetings. Public Official Appointments and Elections. Denotes a required field. Board of Directors Meetings. Regular meetings are held the second and fourth Wednesday of the month at 5 pm.