Cardno ENTRIX
Dr. Jansen has a B.S. in Geology and a M.S. and Ph.D. in Geological Sciences with an emphasis in hydrogeology and geophysics. He is the Senior Managing Hydrogeologist for Cardno ENTRIX and the lead author of the chapter on borehole geophysics in the third edition of Groundwater and Wells. He is a Professional Geologist in seven states, and a Registered Geophysicist in California. He currently the NGWA representative on the Advisory Council on Water Information and was on the Board of Directors for the NGWA Scientists and Engineers Division from 2005 through 2007.