Hugh Rieck is a geologist with the US Army Corps of Engineers - Hazardous, Toxic, and Radioactive Waste Center of Expertise (HTRW-CX) in Omaha, Nebraska. Before joining the HTRW-CX in 2006, Hugh worked six years as a hydrologist with the Arizona Department of Environmental Quality Superfund Programs Section, where he became interested in problems of groundwater sampling for environmental investigations. He began his involvement with the ITRC Passive Sampling team shortly after its inception in 2001 and was an alternate instructor for the ITRC Internet-based training course for the use of polyethylene-based passive diffusion bag (PDB) samplers in 2003. Prior to his state regulatory experience, Hugh worked 13 years as a research geologist with the U.S. Geological Survey, where he specialized in the application of paleomagnetic stratigraphy to investigations of geologic records of climate change. He earned a bachelor's degree in 1974 and master's degree in 1983 in geology and earth science from Northern Arizona University in Flagstaff, Arizona.