Physical tasks may include walking on uneven and unpaved surfaces, bending, stooping, kneeling, reaching, pushing, and pulling, obtaining samples, setting up equipment and the ability to lift, carry, push, and pull materials and objects weighing up to 100 pounds. Bachelor's degree, including 30 semester hours in any combination of courses in the following fields: environmental science (preferred), biological sciences, microbiology, chemistry, physical sciences, environmental engineering, or related fields.