Contents: Introduction and Acknowledgments --
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National Programs Establishing the National Cave and Karst Research Institute as a Robust Research and Education Center/ Louise D. Hose. --

Geophysical Methods for Karst Studies: The State of the Art of Geophysics and Karst: A General Literature Review/ D.V. Smith --
Review of Airborne Electromagnetic Geophysical Surveys over Karst Terrains/ Bruce D. Smith, Jeffrey T. Gamey, and Greg Hodges --
Overview of Karst Effects and Karst Detection in Seismic Data from the Oak Ridge Reservation, Tennessee/ W.E. Doll, B.J. Carr, and J.R. Sheehan, and W.A. Mandell -- Application of Seismic Refraction Tomography to Karst Cavities/ Jacob R. Sheehan, and William E. Doll, David B. Watson, and Wayne A. Mandell --
Borehole Geophysical Techniques to Determine Groundwater Flow in the Freshwater/Saline-Water Transition of the Edwards Aquifer, South Central Texas/ R.B. Lambert, A.G. Hunt, and G.P. Stanton, and John Waugh --
An Evaluation of Methods Used to Measure Horizontal Borehole Flow/ Wayne A. Mandell, James R. Ursic, William H. Pedler, Jeffrey J. Jantos, E. Randall Bayless, and Kirk G. Thideaux. --

The Edwards Aquifer, Texas: Characterization of Hydrostratigraphic Units of the Capture, Recharge, and Confining Zones of the Edwards Aquifer using Electrical and Natural Gamma Signatures, Medina, Uvalde, And Bexar Counties, Texas/ Bruce D. Smith, Allan K. Clark, Jason R. Faith, and Gregory P. Stanton --
Use of Helium Isotopes to Discriminate Between Flow Paths Associated with the Freshwater/Saline Water Transition Zone of the Edwards Aquifer, South Central Texas/ Andrew G. Hunt, Rebecca B. Lambert, Gary P. Landis, and John Waugh --
Airborne and Ground Electrical Surveys of the Edwards and Trinity aquifers, Medina, Uvalde, and Bexar Counties, Texas/ Bruce D. Smith, David V. Smith, Jeffrey G. Paine, and Jared D. Abraham --
Magnetic Geophysical Applications Reveal Igneous Rocks and Geologic Structures in the Edwards Aquifer, Texas/ D.V. Smith, C. Foss, and B.D. Smith --
Structural Controls on Karst Development in Fractured Carbonate Rock, Edwards and Trinity Aquifers, South-Central Texas/ Jason R. Faith, Charles D. Blome, Allan K. Clark, George B. Ozuna, and Bruce D. Smith. --

Numerical Modeling of Karst Systems Simulating Ground-Water Flow in the Karstic Madison Aquifer using a Porous Media Model/ L.D. Putnam and A.J. Long --
Dual Conductivity Module (DCM), A MODFLOW Package for Modeling Flow in Karst Aquifers/ Scott L. Painter, Ronald T. Green, and Alexander Y. Sun --
Conceptualization and Simulation of the Edwards Aquifer, San Antonio Region, Texas/ R.J. Lindgren, A.R. Dutton, S.D. Hovorka, S.R.H. Worthington, and Scott Painter --
The role of MODFLOW in numerical modeling of karst flow systems/ J. J. Quinn, David Tomasko, and J.A. Kuiper. --

Springs and the Use of Geochemistry in Karst Studies: The Case of the Underground Passage: Putting the Clues Together to Understand Karst Processes/ B. Mahler, B. Garnier, and N. Massei -- Spatial and Temporal Variations in Epikarst Storage and Flow in South Central Kentucky's Pennyroyal Plateau Sinkhole Plain/ Chris Groves, Carl Bolster, and Joe Meiman --
Comparison of Water Chemistry in Spring and Well Samples from Selected Carbonate Aquifers in the United States/ Marian P. Berndt, Brian G. Katz, Bruce D. Lindsey, Ann F. Ardis, and Kenneth A. Skach --
Interpretation of Water Chemistry and Stable Isotope Data from a Karst Aquifer According to Flow Regimes Identified through Hydrograph Recession Analysis/ D.H. Doctor and E.C. Alexander, Jr. --

Hydrogeologic Mapping and Tracer Techniques in Karst Areas: An Appalachian Regional Karst Map and Progress Towards a New National Karst Map/ D.J. Weary --
Hydrogeologic Framework Mapping of Shallow, Conduit-Dominated Karst-Components of a Regional GIS-Based Approach/ Charles J. Taylor, Hugh L. Nelson Jr., Gregg Hileman, and William P. Kaiser --
Application of Multiple Tracers to Characterize Sediment and Pathogen Transport in Karst/ Tiong Ee Ting, Ralph K. Davis, J.V. Brahana, P.D. Hays, and Greg Thoma --
Estimating Ground-Water Age Distributions from CFC and Tritium Data in the Madison Aquifer, Black Hills, South Dakota/ Andrew J. Long and Larry D. Putnam -- A Multi-Tracer Approach for Evaluating the Transport of Whirling Disease to Mammoth Creek Fish Hatchery Springs, Southwestern Utah/ Larry E. Spangler, Meiping Tong, and William Johnson. --

Black Hills and Evaporite Karst: National Evaporite Karst-Some Western Examples/ Jack B. Epstein --
Gypsum and Carbonate Karst Along the I-90 Development Corridor, Black Hills, South Dakota/ Larry D. Stetler and Arden D. Davis --
Karst Features as Animal Traps: Approximately 500,000 Years Of Pleistocene And Holocene Fauna and Paleoenvironmental Data in the Northern High Plains/ Larry D. Agenbroad and Kristine M. Thompson --
Developing a Cave Potential Map of Wind Cave to Guide Exploration Efforts/ Rodney D. Horrocks --
The Potential Extent of the Jewel Cave System/ Michael E. Wiles. --

Karst Studies in Arkansas and the Ozarks: Geologic Controls on a Transition Between Karst Aquifers at Buffalo National River, Northern Arkansas/ Mark R. Hudson, David N. Mott, and Kenzie J. Turner, and Kyle E. Murray --
Quantification of Hydrologic Budget Parameters for the Vadose Zone and Epikarst in Mantled Karst/ J.V. Brahana, Tiong Ee Ting, Mohammed Al-Qinna, John F. Murdoch, Ralph K. Davis, Jozef Laincz, Jonathan J. Killingbeck, Eva Szilvagyi, Margaret Doheny-Skubic, Indrajeet Chaubey, P.D. Hays, and Gregg Thoma --
Characterization of Nutrient Processing at the Field and Basin Scale in the Mantled Karst of the Savoy Experimental Watershed, Arkansas/ Jozef Laincz, .P.D. Hays, Sue Ziegler, Byron Winston, J.V. Brahana, Ken Steele, Indrajeet Chaubey, and Ralph K. Davis. --

Water Supply and Land Use Issues in Karst Areas: Transport Potential of Cryptosporidium parvum Oocysts in a Drinking-Water, Karstic-Limestone Aquifer: What We Have Learned Using Oocyst-Sized Microspheres in a 100-m Convergent Tracer Test at Miami's Northwest Well Field/ Ronald W. Harvey, Allen M. Shapiro, Robert A. Renken, David W. Metge, Joseph N. Ryan, Christina L. Osborn, and Kevin J. Cunningham --
Ground-Water Quality Near a Swine Waste Lagoon in a Mantled Karst Terrane in Northwestern Arkansas/ Christopher M. Hobza, David C. Moffit, Danny P. Goodwin, Timothy Kresse, John Fazio, John V. Brahana, and Phillip D. Hays --
Vulnerability (Risk) Mapping of the Madison Aquifer near Rapid City, South Dakota/ Scott L. Miller, Arden D. Davis, and Alvis L. Lisenbee -- Hydrogeologic Characteristics of Four Public Drinking-Water Supply Springs in the Ozark Plateaus of Northern Arkansas/ Joel M. Galloway --
Adaptation of the Residence Time Distribution (RTD)-Biodegradation Model to Quantify Peroxide-Enhanced Fuel Biodegradation in a Single Karst Well/ Lashun K. King, Roger D. Painter, and T.D. Byl --
Free-Living Bacteria or Attached Bacteria: Which Contributes More to Bioremediation?/ Roger D. Painter, Shawkat Kochary, and T.D. Byl --
Desorption Isotherms for Toluene and Karstic Materials and Implications for Transport in Karst Aquifers/ Mario Beddingfield, Khalid Ahmed, Roger Painter, and T.D. Byl --
Computer Program that Uses Residence-Time Distribution and First-Order Biodegradation to Predict BTEX Fate in Karst Aquifers/ Ryan Fitzwater, Roger Painter, Valetta Watson, and T.D. Byl --
Lactate Induction of Ammonia-Oxidizing Bacteria and PCE Cometabolism / LyTreese Hampton, Roneisha Graham, and T.D. Byl (Note: File FileStorage/USGS_KIG/2005/Part3_2.pdf is not available) --
Biodegradation of Toluene as It Continuously Enters a 5-Liter Laboratory Karst System / Fuzail Faridi, Roger Painter, and T.D. Byl. (Note: File FileStorage/USGS_KIG/2005/Part3_2.pdf is not available) --
Bacteria Induced Dissolution of Limestone in Fuel-Contaminated Karst Wells/ Serge Mondesir and T. D. Byl. --

Field Trip Guides: Introduction to Three Field Trip Guides: Karst Features in the Black Hills, Wyoming and South Dakota, Prepared for the Karst Interest Group Workshop, September 2005/ Jack B. Epstein and Larry D. Putnam --
Field Trip Guide 1 Karst Features of the Southern Black Hills, South Dakota, Karst Interest Group Workshop, September 12, 2005/ Jack B. Epstein, Larry Agenbroad, Mark Fahrenbach, Rodney D. Horrocks, Andrew J. Long, Larry D. Putnam, J. Foster Sawyer, and Kristine M. Thompson --
Field Trip Guide 2 Karst Features of the Northern Black Hills, South Dakota and Wyoming, Karst Interest Group workshop, September 15, 2005/ Jack B. Epstein, Arden D. Davis, Andrew J. Long, Larry D. Putnam, and J.Foster Sawyer --
Field Trip Guide 3 for a Self-Guided Trip to Karst Features of the Western Black Hills, Wyoming and South Dakota, Karst Interest Group Workshop, September 12-15, 2005/ Jack B. Epstein. --