In the event of workload imbalance, upon mutual agreement between the Union and Department, bids may be limited so specific. The employee must have been employed full-time in the.Contra Costa Community College District for at least ten (10) years in a faculty position. 14.1.4. FINAL (11th month) evaluation for a probationary employee. The Labor Relations Services Unit develops and implements the County's labor relations goals, policies and priorities and manages the negotiations process. This agreement shall be presented to the Contra Costa County Board of. Supervisors as the joint recommendation of the undersigned. 1. Contra Costa County registered nurses (RNs), nurse practitioners (NPs) and public health nurses (PHNs) voted overwhelmingly to ratify a new threeyear contract.