Wednesday, April 2, 2008 : 9:00 a.m.
Arsenic in and around Montezuma Well, a Natural Spring in Central Arizona: Evaluating Regional Ground Water Flow and Resulting Arsenic Transport
Raymond H. Johnson, USGS Raymond H. Johnson is currently a research geologist with the USGS in the Central Region Crustal Imaging and Characterization Team. He obtained his Ph.D. in geological engineering from the Colorado School of Mines in 2003 and an M.S. in hydrogeology from the University of Waterloo in 1993. His current research interest includes the use of integrated science approaches using geology, geochemistry, and ground water modeling to understand the transport and fate of metals in the environment.