Working conditions may include working outside in inclement weather, walking, standing, bending and stooping for extended periods of time, lifting carrying heavy objects, crawling in small, cramped spaces, working from ladders, scaffolds and other above ground locations including high sloping roofs. There is some risk of exposure to dirt, biological, chemical and radiological materials or danger of steam or hot water burns, electric shock, infection or minor injuries that could require the use of OSHA approved Personal Protective Equipment.