Chris Bittner is a human health and ecological risk assessor in the RCRA program at the Utah Department of Environmental Quality located in Salt Lake City , Utah . Chris has worked for Utah since 1996. In addition to his experience with the State, Chris also worked as a consultant for two years conducting ecological and human health risk assessments. He has presented risk assessment methods and results to diverse audiences ranging from graduate classes to the general public. Chris joined the ITRC Risk Assessment Resources team in 2005. He earned a bachelor's degree in geology from Edinboro University in Edinboro , Pennsylvania in 1984 and a master's degree in environmental toxicology from Western Washington University in Bellingham , Washington in 1993.