Chemical, Bacteriological, and Physical Injury Hazards for this position would include: Methane gas, natural gas, low oxygen levels, oxygen-rich levels, hydrogen sulfide gas, asbestos dust, clay dust, concrete (skin contact), Hepatitis A, B, and C, drowning, equipment injuries, traffic accidents, snake bites, insect bites, poison plants, and excavation cave-ins. WORK HAZARDS Work hazards for this position include: Noise from jackhammering concrete or asphalt, heavy equipment operations, air compressors, generators, hydro jet trucks, vacuum trucks, cutting/sawing operations, large electric motors, motor-driven pumps, electric saws, drills, and grinders.