Session No. 201 Wednesday, October 30, 2002

8:00 AM-12:00 PM, Colorado Convention Center: A201
T50. Characterizing Geochemical Processes: When Is There Sufficient Information?
William L. Dam, Lauren Browning and John Bradbury, Presiding
 Paper #Start Time
 8:00 AM Introductory Remarks
201-18:15 AM THE ROLE OF GEOCHEMISTRY IN BUILDING CONFIDENCE IN THE LONG-TERM PERFORMANCE OF GEOLOGICAL REPOSITORIES: HART, Kaye P., Embassy of Australia, 1601 Massachusetts Ave NW, Washington, DC 20036, kaye.hart@austemb.org.
201-28:35 AM SUFFICIENT AND NECESSARY: THE SITE-SPECIFIC CHARACTERIZATION OF GEOCHEMICAL PROCESSES: VANIMAN, David T., Hydrology, Geochemistry, and Geology (EES-6), MS D462, Los Alamos National Laboratory, Los Alamos, NM 87545, vaniman@lanl.gov and BISH, David L., Hydrology, Geochemistry, and Geology (EES-6), MS D469, Los Alamos National Laboratory, Los Alamos, NM 87545
201-38:50 AM USING RISK INFORMATION TO DETERMINE THE NEED FOR ADDITIONAL GEOCHEMICAL INFORMATION FOR THE PROPOSED YUCCA MOUNTAIN REPOSITORY: LESLIE, Bret W., Risk Task Group, U.S. Nuclear Regulatory Commission, Mail Stop T-7F3, Washington, DC 20555-0001, bwl@nrc.gov.
201-49:10 AM Paper Withdrawn
201-59:25 AM THE COLD-TRAP PROCESS AND ITS EFFECT ON MOISTURE DISTRIBUTION AND CHEMISTRY OF WATER IN DRIFTS: FEDORS, Randall, PRIKRYL, James, MAYER, Stefan, BROWNING, Lauren, and DODGE, Franklin, CNWRA, Southwest Research Institute, 6220 Culebra Rd, San Antonio, TX 78238, rfedors@swri.edu
201-69:40 AM DATA SUFFICIENCY, EIS DEVELOPMENT, AND REGULATORY DECISION MAKING: THE ROLE OF GIS: FARRELL, David A.1, SIMS, Darrell1, MACKIN, Patrick1, FEDORS, Randall1, NECSOIU, Marius1, GLENN, Chad2, SNYDER, Amy3, and ILLMAN, Carla4, (1) Center for Nuclear Waste Regulatory Analyses, Southwest Rsch Institute, 6220 Culebra Rd, San Antonio, TX 78238, dfarrell@swri.edu, (2) U.S. Nuclear Regulatory Commission, 11555 Rockville Pike, Rockville, MD 20852, (3) U.S. Nuclear Regulatory Commission, 11555 Rockville Pike, Rockville, TX 20852, (4) 2004 Rochester Ct, Iowa City, IA 52245
 9:55 AM Break
201-710:10 AM ARSENIC RELEASES FROM BURIED URANIUM MILL TAILINGS AT MCCLEAN LAKE: APPLICATION OF GEOCHEMICAL CONCEPTS AND LICENSE APPROVAL BY THE CANADIAN GOVERNMENT: LANGMUIR, Donald, Hydrochem Systems Corp, P.O. Box 17090, Golden, CO 80402, langmuir@ix.netcom.com, MAHONEY, John, Hydrologic Consultants Inc, 143 Union Blvd, Lakewood, CO 80228, and ROWSON, John W., Cogema Resources Inc, 817-825 45th St. W, Saskatoon, SK S7K3X5, Canada
201-810:30 AM THE OTHER PART OF WATER-ROCK INTERACTIONS: MINERALS AND MINERAL SURFACES IN ENVIRONMENTAL GEOCHEMICAL PROCESSES: ZHU, Chen, Earth and Planetary Science, Univ of Pittsburgh, 321 Old Engineering Hall, Pittsburgh, PA 15260, czhu@pitt.edu.
201-910:45 AM USE OF A REACTIVE TRANSPORT MODEL TO PREDICT CONTAMINANT CONCENTRATIONS AT A URANIUM MILL TAILINGS SITE IN WYOMING: LEVY, D.B.1, GIECK, T.E.2, LAWRENCE, E.P.3, and SEALY, C.O.2, (1) Summit Geoscience, 3200 Azalea Drive Suite F4, Fort Collins, CO 80526, david@summitgeoscience.com, (2) Umetco Minerals Corporation, 2754 Compass Dr. Suite 280, Grand Junction, CO 80526, (3) Hydrosolutions, 13701 W. Jewell Ave. Suite 249, Lakewood, CO 80228
201-1011:00 AM INSIGHTS FROM PROCESS-LEVEL MODELING OF CONTAMINANT TRANSPORT FROM URANIUM MILL TAILINGS: BRADBURY, John W., Division of Waste Management, U. S. Nuclear Regulatory Commission, Washington, DC 20555, jwb@nrc.gov.
201-1111:15 AM DISTINGUISHING ANTHROPOGENIC URANIUM IN A HIGH BACKGROUND ENVIRONMENT: POTTORFF, Elizabeth T., Hazardous Materials and Waste Management Division, Colorado Department of Public Health and Environ, HMWMD-B2, 4300 Cherry Creek Dr. South, Denver, CO 80246-1530, elizabeth.pottorff@state.co.us and SINGER, Stephen, Rocky Mountain Remediation Services, Rocky Flats Environmental Technology Site, 10808 Highway 93, Unit B, Building No. T130C, Golden, CO 80403-8200
201-1211:30 AM CONTAMINANT-TRANSPORT RESEARCH AT THE AMARGOSA DESERT RESEARCH SITE, NYE COUNTY, NEVADA: STONESTROM, David A., U.S. Geol Survey, 345 Middlefield Rd, Mail Stop 421, Menlo Park, CA 94025, dastones@usgs.gov.
 11:45 AM Discussion

Back to the 2002 Denver Annual Meeting (October 27-30, 2002)