Aaron Tigar
Contractor to the Department of Energy Office of Legacy Management, Grand Junction, CO
Activity
2021
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USING SURFACE WATER INJECTIONS IN LABORATORY COLUMN AND FIELD TRACER TESTS TO DETERMINE URANIUM SORPTION PARAMETERS FOR REACTIVE TRANSPORT MODELING
T205 Groundwater–Surface Water Interactions in Streams, Lakes, and WetlandsWednesday, 13 October 20218:00 AM - 12:00 PMD136 (Hybrid Room)
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SINGLE-WELL INJECTION-DRIFT TEST TO ESTIMATE GROUNDWATER VELOCITY
T209 Basic Data Innovations in Hydrogeological InvestigationsWednesday, 13 October 20218:00 AM - 12:00 PMD138
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SURFACE INFILTRATION OF RIVER WATER TO GROUNDWATER TO SIMULATE PERIODIC FLOODING EVENTS AT A URANIUM-CONTAMINATED SITE
T205 Groundwater–Surface Water Interactions in Streams, Lakes, and WetlandsWednesday, 13 October 20218:00 AM - 12:00 PMD136 (Hybrid Room)
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DIRECT RIVER WATER TO GROUNDWATER RECHARGE EXPERIMENTS TO ELUCIDATE MASS TRANSPORT MECHANISMS OF URANIUM
T120 Groundwater–Surface Water Interactions in Streams, Lakes, and Wetlands (Posters)Monday, 11 October 20212:30 PM - 6:30 PMExhibit Hall A
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DETERMINING THE SOIL ORGANIC CARBON PARTITION COEFFICIENT (KOC) FOR THE NOVEL GROUNDWATER TRACER 2-NAPHTHALENE SULFONATE (2-NS)
T9 Secured Groundwater towards a Sustainable EarthSunday, 10 October 20218:00 AM - 12:00 PMD136 (Hybrid Room)
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PHREEQC MODELING OF LABORATORY FLOW-THROUGH COLUMN DATA TO INVESTIGATE THE MECHANISMS OF URANIUM MOBILITY
7 Geochemical Influences on Metal Contaminants in Subsurface SystemsMonday, 19 April 20218:00 AM - 12:00 PMMissouri Geological Survey Room
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MASS TRANSPORT OF HALIDE AND BENZOATE TRACERS TO CHARACTERIZE GROUNDWATER VELOCITY, DISPERSIVITY, AND MATRIX DIFFUSION IN A URANIUM-CONTAMINATED AQUIFER
7 Geochemical Influences on Metal Contaminants in Subsurface SystemsMonday, 19 April 20218:00 AM - 12:00 PMMissouri Geological Survey Room
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IN-SITU FLOODING EXPERIMENTS TO ELUCIDATE MASS TRANSPORT MECHANISMS OF URANIUM IN GROUNDWATER: A CASE STUDY OF RIVERTON, WYOMING
7 Geochemical Influences on Metal Contaminants in Subsurface SystemsMonday, 19 April 20218:00 AM - 12:00 PMMissouri Geological Survey Room
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SINGLE-WELL INJECTION-DRIFT TEST TO CHARACTERIZE GROUNDWATER VELOCITY AND DISPERSIVITY
8 Karst Studies across the MidcontinentMonday, 19 April 20218:00 AM - 12:00 PMGeosciences @ University of Arkansas Room
2020
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ENHANCED GROUNDWATER FLUSHING OF URANIUM VIA ALKALINITY-DRIVEN DESORPTION
T59 Fluid Behavior in the Subsurface Related to Energy DevelopmentTuesday, 27 October 202010:00 AM - 12:00 PMMeeting Rooms
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ENHANCED MASS REDUCTION OF URANIUM VIA ALKALINITY-DRIVEN DESORPTION AND GROUNDWATER FLUSHING
Session 6: Groundwater Quality, Degradation, and Protection, plus Caves and KarstTuesday, 19 May 20208:00 AM - 11:25 AM
2019
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COMPARISON OF COLUMN LEACHING RATES ON CONTAMINANT RELEASE FROM RIVER FLOODPLAIN SEDIMENTS AT A FORMER URANIUM MILL SITE
T32 Advances in Understanding Processes at or Near the Groundwater–Surface Water Interface (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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BEYOND ORDINARY AQUIFER TRACER TESTING: INCLUDING GEOCHEMICAL DATA FOR CONTAMINANT TRANSPORT PARAMETERS AT A LEGACY URANIUM MILL SITE
T70 Field Tracer Studies for Aquifer CharacterizationSunday, 22 September 20191:30 PM - 5:30 PMRoom 105BC, West Building
2016
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CONTRIBUTION OF URANIUM-BEARING EVAPORITES TO PLUME PERSISTENCE ISSUES AT A FORMER URANIUM MILL SITE, RIVERTON, WYOMING
324 Geochemistry (Posters)Wednesday, 28 September 20169:00 AM - 6:30 PMExhibit Hall E/F
2014
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RED COLORATION WITH ELEVATED NO3, SE, SO4, TOC, AND U IN MANCOS SHALE SEEPAGE, SOUTHWESTERN UNITED STATES
30 Selenium, Uranium, and Radionuclides: Geology, Biogeochemistry, and Ecosystem Impacts from Mining and Other Activities in the Western United States and Southwestern Canada IIWednesday, 21 May 20148:00 AM - 12:00 PMReid Hall 108