John Tauxe has been working in the earth and environmental sciences and engineering since 1981, and has developed expertise in quantitative hydrology and hydrogeology, and in computer programming, concentrating in the modeling of contaminant fate and transport in the environment.His earth science experience includes studying the radiogeochemistry of lakes at Canada’s Experimental Lakes Area, mapping the sea floor using sidescan sonar with Lamont-Doherty Earth Observatory, exploring marine geology on a global scale with the Ocean Drilling Program, and applying hydrologic and hydrogeologic science and theory to environmental problems.In the realm of environmental and water resources engineering, John has written groundwater contaminant transport software for the Environmental Protection Agency and for the Arc/Info geographic information system (GIS), modeled water resources issues associated with hydropower dam relicensing by the FERC, and modeled the transport of radionuclides in the environment at several sites across the DOE complex, the Mochovce LLW Repository in Slovakia, and sites operated by EnergySolutions and Waste Control Specialists.John earned a Ph.D. in Civil Engineering from the University of Texas at Austin (1994), and a B.A. in Earth Science from Wesleyan University (1984). He is a Registered Professional Engineer in the State of New Mexico.Specialties: Contaminant transport, risk, and decision modeling using the GoldSim software: Dr. Tauxe is a certified GoldSim Training Provider, and Neptune and Company is a certified GoldSim Solutions Provider.Radioactive waste managementEnvironmental modelingDecision modelingWater resources modelingScientific ocean drilling