Todd Giddings, Ph.D., P.G., is a registered professional geologist, and the principal hydrogeologist and president of Todd Giddings and Associates, Inc. He has more than 45 years of experience in ground-water resources development, management, and remediation. His areas of professional interest are water-resources education, karst hydrogeology, and geothermal heat pump system training. He is a Director of the Pennsylvania Ground Water Association, Chairman of their Education Committee, and is Webmaster of their Web site at www.pgwa.org . He has organized hands-on demonstrations of innovative drilling technologies at the Pennsylvania Ground Water Association’s Summer Field Conferences for the past 14 years.