Ability to work safely in an environmental restoration setting that may include outdated or abandoned facilities and potential exposure to equipment movement hazards, chemicals, solvents, hazardous materials, radioactive materials, noise, heat stress, confined areas, tanks, and weather extremes. Ability to walk or stand for prolonged periods; push or pull repeatedly; kneel, stoop, reach, grasp, and carry tools or instruments; and perform medium to very heavy work, including exerting up to 100 pounds of force occasionally, up to 50 pounds frequently, and more than 20 pounds constantly.