He/she must be able to lift/carry/push/pull 100 pounds, climb, balance, stoop, kneel, crouch, crawl, reach, and handle, in order to load and unload materials and equipment. He/she must be alert to safety hazards and have a method of communicating, so those around can respond and understand; must be able to see and tell colors, as this is necessary to drive equipment, inspect groundwork and perform grounds tasks.