The Contractor shall supply all labor, equipment, tools, and vehicles necessary to inspect and perform preventative maintenance on fire hydrants assigned to them by the County under this contract. Field inspection and preventative maintenance includes but is not limited to: locating, inspecting, assessing, exercising, testing of static pressure, internal lubrication, installation of new thrust washers, O-rings and painting of all assigned fire hydrants. Additionally, locating, exercising and adjusting elevation of hydrant isolation valves shall be required if location is out of pavement. The Contractor will not perform full repairs under section A of this contract. A Utility Contractor License is NOT required to bid this section. The County has approximately 48,000 hydrants; however, the number of hydrants that will be assigned under this contract for inspection is not guaranteed. In general, one third of the hydrant inventory will be assigned each year for inspection.