David Alleman is an Environmental Manager with ALL Consulting. He has a long history of environmental research related to energy production in the United States. Mr. Alleman’s energy and environmental experience includes conventional oil and gas production, as well as water use and water treatment issues related to coal bed natural gas, shale gas, oil shale, processing, and coal. As a research manager with the U.S. Department of Energy, he was previously involved in many of the significant technical and regulatory environmental issues affecting industry over the last. 20 years.