Physical: Primary functions require sufficient physical ability and mobility to work in an office setting and field environment; to walk, stand, and sit for prolonged periods of time; to frequently stoop, bend, kneel, crouch, crawl, climb, reach, twist, grasp, and make repetitive hand movement in the performance of daily duties; to lift, carry, push, and/or pull moderate amounts of weight up to 50 lbs without assistance and greater than 50lbs with assistance; to operate assigned equipment and vehicles; and to verbally communicate to exchange information. Environment: Work is performed primarily in an outdoor setting with exposure to all types of weather and temperature conditions, and travel from site to site.