D Kirk NordstromD. Kirk Nordstrom is a senior scientist of 38 years with the U.S. Geological Survey. He received a B.A. in chemistry from Southern Illinois University, a M.S. in geology from the University of Colorado, and a Ph.D. in applied earth sciences from Stanord University. He also taught for four years at the University of Virginia. Dr. Nordstrom is recognized internationally for his research on acid mine drainage, radioactive waste disposal, geothermal chemistry, arsenic geochemistry, geomicrobiology, and analytical chemistry and geochemical modeling of natural waters. Read More Read Less