Bob Puls has a Ph.D. In Soil & Water Science. He recently retired from the University of Oklahoma where he was Associate Professor and Director of the Oklahoma Water Survey. He now consults (www.robertpulsenvironmentalconsulting.com) and has lectured extensively on water issues nationally and internationally. His publications cover a wide range of topics including aquifer restoration, wastewater reuse, water sampling and water resource protection for oil and gas exploration.