Frequently exposed to wet, humid conditions (non-weather), vibration, outdoor weather conditions, extreme cold and hot (non-weather) conditions, work near moving mechanical parts; Occasionally required to wear a respirator, work in confined spaces, work at heights of four feet or more with fall protection; Rarely required to work underground. Regularly required to talk and hear; Frequently required to use repetitive wrist and or finger movement, feel attributes of objects, grasp, push, stand, walk, reach with hands/arms; Occasionally required to use repetitive motion and reach with hands/arms, stoop, kneel, crouch, crawl, and climb or balance.