Geological Society of America

8:00 AM

LABORATORY SORPTIVE AND NON-REACTIVE TRACER TESTS IN A HIGHLY HETEROGENEOUS SYNTHETIC AQUIFER

Daniel Fernandez-Garcia, Colorado School of Mines, Golden, CO and Tissa H. Illangasekare, Colorado School Mines, Golden, CO and Harihar Rajaram, Univ of colorado, Boulder, CO

45385 (Technical Sessions)

8:15 AM

THE MIGRATION OF A SODIUM BROMIDE TRACER IN A LARGE MAINE PEATLAND

Andrew S. Reeve, Univ of Maine, Orono, ME and Lee Slater, Rutgers Univ, Newark, NJ

44309 (Technical Sessions)

8:30 AM

CORONA: CONFIDENCE IN FORECASTING NATURAL ATTENUATION AS A RISK-BASED REMEDIATION STRATEGY

Ryan D. Wilson, Univ of Sheffield, Sheffield, N/A and Steven F. Thornton, N/A and David N. Lerner

44281 (Technical Sessions)

8:45 AM

VADOSE ZONE TRANSPORT OF PESTICIDES IN THE HIGH PLAINS: EVALUATING GROUNDWATER QUALITY RISKS USING NUMERICAL SIMULATIONS

Joseph Charlton McCarthy, Colorado School of Mines, Seattle, WA and John E. McCray, Colorado School of Mines, Golden, CO and Geoff Thyne, Colorado School of Mines, Golden, CO

43600 (Technical Sessions)

9:00 AM

THE USE OF A VARIABLY SATURATED DUAL-DOMAIN MODEL TO SIMULATE THE TEMPORAL CHLORIDE DATA FROM A MSW LANDFILL IN FLORIDA

Richard A. Statom, Colorado School of Mines, Golden, CO and John E. McCray, Colorado School of Mines, Golden, CO and Geoffrey Thyne, Colorado School of Mines, Golden, CO

43881 (Technical Sessions)

9:15 AM

MODELING AND ISOTOPIC ANALYSIS TO ASSES ARTIFICIAL RECHARGE IN THE RIALTO-COLTON BASIN, SAN BERNARDINO COUNTY, CALIFORNIA

Linda R. Woolfenden, U.S. Geol Survey, Sacramento, CA and Uma Seeboonruang, U.C. Davis, Davis, CA and Timothy R. Ginn, U.C. Davis, Davis, CA

46141 (Technical Sessions)

9:30 AM

IMPACTS TO GROUNDWATER QUALITY FROM A LARGE DIRECT SURFACE RECHARGE FACILITY

Mario R. Lluria, Salt River Project, Phoenix, AZ

46043 (Technical Sessions)

9:45 AM

GROUNDWATER CHEMISTRY CHANGES DURING A RECHARGE EVENT IN THE KARSTIC EDWARDS AQUIFER, SAN ANTONIO, TEXAS

Steven B. Johnson, Edwards Aquifer Authority, San Antonio, TX and Geary M. Schindel, Edwards Aquifer Authority, San Antonio, TX and John R. Hoyt, Edwards Aquifer Authority, San Antonio, TX

45931 (Technical Sessions)

10:00 AM

NUMERICAL SIMULATIONS EVALUATING THE EFFECT OF FINE GRAIN SEDIMENT TRANSPORT IN DISCRETE FRACTURES ON THE DEVELOPMENT OF PROTO-CONDUITS IN LIMESTONE AQUIFERS

William K Annable, Univ of Waterloo, Waterloo, ON and Edward A. Sudicky, Univ of Waterloo, Waterloo, ON and Derek C. Ford, McMaster Univ, Hamilton, ON

46175 (Technical Sessions)

10:15 AM

EFFECTS OF KARST PROCESSES ON THE MINING OF GYPSM

Roger D. Sharpe, United States Gypsum Co, Chicago, IL

43735 (Technical Sessions)

10:30 AM

GROUNDWATER AND MICROBIAL PROCESSES IN COASTAL PLAIN AQUIFERS, ALABAMA

Elizabeth Penny, Auburn Univ, Auburn, AL and Ming-Kuo Lee, Auburn Univ, Auburn, AL and Cynthia Morton, Auburn Univ, Auburn, AL

44972 (Technical Sessions)

10:45 AM

CHEMICAL GEOTHERMOMETRY AND ENTHALPY-CHLORIDE RELATIONSHIPS INDICATE MIXING/DILUTION OF METEORIC AND GEOTHERMAL WATERS, GUANAJUATO, MÉXICO

K.H. Johannesson, The Univ of Texas at Arlington, Arlington, TX and A. Cortes, Universidad Nacional Autonoma de Mexico, Mexico, D.F, N/A and J.A. Ramos Leal, Universidad Nacional Autonoma de Mexico, Mexico, D.F, N/A and J. Durazo, Universidad Nacional Autonoma de Mexico, Mexico, D.F, N/A

37730 (Technical Sessions)

11:00 AM

CHEMISTRY, GEOLOGIC CONTROLS, AND RECHARGE AREAS FOR SPRINGS IN COURTHOUSE WASH, ARCHES NATIONAL PARK, UTAH

Hugh A. Hurlow, Utah Geol Survey, Salt Lake City, UT and Charles E. Bishop, Salt Lake City, UT and James Harte, National Park Service, Fort Collins, CO

41713 (Technical Sessions)

11:15 AM

THE DISTRIBUTION OF OXYGEN ISOTOPES IN THE WALKER RIVER-WALKER LAKE SURFACE WATER SYSTEM: CLUES FROM A HYDROLOGIC AND ISOTOPIC BALANCE MODEL

Fasong Yuan, SUNY-Albany, Albany, NY

35892 (Technical Sessions)

11:30 AM

RADIUM ISOTOPES IN LAKE CAYUGA, NEW YORK: EXAMPLES OF USES AS LIMNOLOGICAL TRACERS

Thomas F. Kraemer, U. S. Geol Survey, Reston, VA

44273 (Technical Sessions)

186 Hydrogeology II: Chemical Hydrogeology

Presentations