Forms may be obtained at the Office of the County Administrator, or Office of the Clerk of the Board, 1025 Escobar Street, 1st Floor, Martinez, California. Meeting agendas for the Board of Supervisors, Housing Authority, standing committees, and special districts are available online.Board of Directors Minutes. View the public meetings, agendas and minutes for Contra Costa School of Performing Arts. Persons who wish to address the Board of Directors should complete the form provided for that purpose and furnish a copy of any written statement to the clerk. 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. Board of Directors Meetings. Regular meetings are held the second and fourth Wednesday of the month at 5 pm. Contra Costa County Employees' Retirement Association. Menu.