Physical Environment: A great deal of physical effort is involved in the following activities: walking, pushing, pulling, climbing and working off ladders, twisting, turning, reaching, squatting bending, kneeling, carrying heavy equipment and supplies weighing up to but not limited to 80 pounds, finger dexterity, visual acuity. A great deal of mental processing is involved in the following areas; reading, remembering, observing and evaluating, reasoning, problem solving, measuring, communicating verbally and in writing, following written and oral directions.