Albert Ogden is a karst hydrogeologist specializing in solving and preventing ground water problems in limestone terrains. He received his B.S. degree in Geology from the Pennsylvania State University and his Ph.D. in Hydrogeology from West Virginia University. His dissertation work in West Virginia included geologic mapping, ground water tracing, and water quality investigations. His professional career began as an Assistant Professor of Hydrogeology for the University of Arkansas where he conducted karst water quality and dye trace studies throughout the Ozarks. He then became the Assistant Director and Hydrogeologist for the Edwards Aquifer Research and Data Center in Texas. During his four years in Texas, he conducted numerous water quality and ground water (dye) tracing studies in the karstic Edwards Aquifer. Dr. Ogden then became the Senior Hydrogeologist for the Superfund and RCRA programs of the Idaho Division of Environment. From Idaho, he was appointed an Associate Professor for the Water Research Center at Tennessee Technological University where he and his graduate students performed ground water tracing and water quality investigations of Mississippian-aged limestones of the Highland Rim and folded Ordovician carbonates in east Tennessee. He now is an Associate Professor at Middle Tennessee State University working primarily on karst problems in the Ordovician carbonates of the Central Basin. Dr. Ogden has written over 100 professional papers and technical reports on ground water in karst terrains. In addition to ground water tracing, he has worked on sinkhole subsidence and flooding problems, geophysical applications for locating fractures and cavities, wellhead protection area delineations, landfill site evaluations, UST site characterizations and remedial actions, water resource evaluations with analytical flow modeling, well log and soil boring interpretations, performance of slug and pumping tests, fracture trace analysis, and expert witness testimony in the courts. He recently completed two ground water tracing studies at State listed Superfund Sites for the City of Murfreesboro and is presently investigating sinkhole flooding problems for the Rutherford County Planning Commission. Within the last five years, he has conducted ground water traces for Johnson City, Knoxville, Gallatin, Cleveland Utilities, McMinnville, the Ocoee Water District, three zinc mines, a coal mine, a proposed industrial landfill, and the Rutherford County Planning Commission. Over the last 14 years, he has performed ground water investigations in 30 Tennessee counties. Other recent clients include: General Electric, Colonial Pipeline, Bridgestone/Firestone, Miller Drilling Co., Vulcan Materials, and Waste Management.