Hydrogeologist
P.E. LaMoreaux & Associates, Inc.
(PELA)
Oak Ridge, Tennessee
Education
M.S., Geography (karst hydrology), 1991, Western Kentucky University
B.S., Natural Resources (geology and forestry), 1989, The University of
the South (Sewanee)
Professional Geologist Registrations
Kentucky #1180
Tennessee #TN2705
Mr. Stephenson has more than eight years of experience in the field of hydrogeology, including specialized education and experience in karst hydrology. He is skilled in the application of geologic and hydrologic principles in a variety of hydrogeologic settings, including karst areas.
Since joining PELA, Mr. Stephenson has assisted with karst investigations in seventeen states involving evaluation of sinkhole collapse potential; protection of groundwater quality and aquatic habitats in caves; improvement of stormwater runoff quality; groundwater monitoring and permitting under the Resource Conservation and Recovery Act (RCRA); waste disposal facility siting and evaluation; pipeline corridor routing; and water-supply development. He also assists with the organization and implementation of a series of multidisciplinary conferences on sinkholes and the engineering and environmental impacts of karst.
Prior to joining PELA, Mr. Stephenson was responsible for managing hydrogeologic and geophysical investigations at CERCLA (Superfund) hazardous-waste sites nationwide under contract to the U.S. EPA Environmental Response Team. Mr. Stephenson is experienced in the preparation of work plans, sampling-and-analysis plans, health-and-safety plans, and subcontracts; performance of field activities; data analysis; and preparation of technical reports. He has also managed monitoring well installation; sampling of groundwater, soil, and soil gas; and performance of surface and borehole geophysical surveys.
While serving as a research hydrologist at the Center for Cave and Karst Studies, Mr. Stephenson assisted with investigations of a variety of karst environmental hazards, including groundwater contamination, sinkhole collapse, and sinkhole flooding. Field activities included stream discharge measurement, potentiometric mapping, groundwater tracing, cave surveying, microgravity and magnetic induction surveys, aquifer pumping tests, video borehole logging, differential leveling, map analysis, and cartography. He also served as a park ranger for the U.S. National Park Service (Wind Cave National Park, South Dakota), where he participated in karst research projects and prepared and presented of a variety of environmental education programs for the public.
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Seventh Multidisciplinary Conference on Sinkholes and...Karst