Must work outdoors in adverse weather conditions; lifting up to 75 lbs.; frequent walking, reaching, pushing, pulling, bending, squatting, stooping, crawling, standing, digging, climbing; works on uneven terrain, many times with heavy vegetation; manual dexterity (hand/eye coordination); keen eyesight; good hearing; good sense of smell; comes in frequent contact with insects and animals; ability to use breathing apparatus when responding to gas leaks.