Raymond H. Johnson
Contractor to the U.S. Department of Energy Office of Legacy Management, Grand Junction, CO
Activity
2025
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TEMPERATURE AND CONDUCTANCE AS PROXIES FOR ADDED SOLUTES DURING TRACER TESTS
8 Groundwater Mapping and Monitoring (Posters)Friday, 28 March 20258:30 AM - 5:30 PMNorth Great Hall
2024
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CONTAMINANT TRANSPORT FROM CONTAMINATED GROUNDWATER TO THE UPPER VADOSE ZONE
99 D8. Groundwater Recharge and Unsaturated-zone Processes at Local and Regional Scales: A Reflection on Rick Healy's Legacy (Posters)Monday, 23 September 20248:00 AM - 5:30 PMHall D
2022
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MILL-RELATED URANIUM IN THE UNSATURATED ZONE: LONG-TERM RELEASE AND WHAT TO DO NEXT
T50 Uranium Fate and Transport in the EnvironmentSunday, 9 October 20221:30 PM - 5:30 PM205
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DESIGNING A TRANSPORT MODEL FOR URANIUM AND MOLYBDENUM AT RIVERTON, WYOMING
T50 Uranium Fate and Transport in the EnvironmentSunday, 9 October 20221:30 PM - 5:30 PM205
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MICROSCALE VISUALIZATION AND ELEMENTAL ANALYSIS OF SOLID-PHASE URANIUM GEOCHEMISTRY ON CONTAMINATED SEDIMENTS USING FISSION TRACK TECHNOLOGY
T50 Uranium Fate and Transport in the EnvironmentSunday, 9 October 20221:30 PM - 5:30 PM205
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URANIUM (IM)MOBILIZATION DRIVEN BY EVAPORITE WET-DRY CYCLING: IMPACT ON GROUNDWATER QUALITY
T50 Uranium Fate and Transport in the EnvironmentSunday, 9 October 20221:30 PM - 5:30 PM205
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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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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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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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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ASSESSING THE FEASIBILITY OF A NOVEL GROUNDWATER TRACER, SODIUM 2-NAPHTHALENE SULFONATE, FOR ESTIMATING THE TOTAL FRACTION OF ORGANIC CARBON IN NATIVE SEDIMENTS
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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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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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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INVESTIGATION OF A NOVEL TRACER, SODIUM 2-NAPHTHALENE SULFONATE, FOR SORPTION TO ORGANIC CARBON IN NATIVE SEDIMENTS
T148 Arsenic, Fluoride, Manganese, and Radiogenic Contaminants in Groundwater Systems—Scientific Knowledge, Public Health Concerns, and Removal Technology IIWednesday, 28 October 20201:30 PM - 5:30 PMMeeting Rooms
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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
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SORPTION OF 2-NAPHTHALENE SULFONATE TO ORGANIC-RICH SEDIMENTS IN BATCH AND COLUMN EXPERIMENTS
Session 6: Groundwater Quality, Degradation, and Protection, plus Caves and KarstTuesday, 19 May 20208:00 AM - 11:25 AM
2019
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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
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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
2016
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WATER-QUALITY ISSUES RELATED TO URANIUM IN SITU RECOVERY SITES
T309 In-Situ Technologies for Energy Resource Extraction: The Role of WaterWednesday, 28 September 20161:30 PM - 5:30 PMRoom 501
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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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SITE APPLICATIONS OF GENERALIZED COMPOSITE SURFACE COMPLEXATION MODELS FOR SIMULATING URANIUM TRANSPORT IN GROUNDWATER
24 Selenium, Uranium, and Radionuclides: Geology, Biogeochemistry, and Ecosystem Impacts from Mining and Other Activities in the Western United States and Southwestern Canada ITuesday, 20 May 20141:00 PM - 5:00 PMReid Hall 108
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GEOCHEMICAL MODELING OF URANIUM IN-SITU RECOVERY (ISR) POST-MINING SITE CONDITIONS
24 Selenium, Uranium, and Radionuclides: Geology, Biogeochemistry, and Ecosystem Impacts from Mining and Other Activities in the Western United States and Southwestern Canada ITuesday, 20 May 20141:00 PM - 5:00 PMReid Hall 108
2010
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EFFECTS OF WIND-BLOWN DUSTS- URANIUM AND ARSENIC IN SHALLOW GROUNDWATER
T141 Geochemistry of Atmospheric Particulates: From Sources to Impacts on the Environment and HealthMonday, 1 November 20101:30 PM - 5:30 PMRoom 302
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HIGH TOTAL ORGANIC SOIL CARBON (TOSC), LOW DISSOLVED ORGANIC CARBON (DOC) AND BLACK CARBON (BC) HORIZONS, SAN JUAN MOUNTAINS, COLORADO: IMPLICATIONS FOR ENHANCED NATURAL TERRESTRIAL CARBON SEQUESTRATION (NTS) LAND USE MANAGEMENT AND RECLAMATION PROTOCOLS
T62 Pyrogenic Black Carbon, or Biochar, in Soils and Sediments, Its Characterization and Fate—Its Effects On the Carbon Cycle and Carbon Sequestration, and Its Effects on Soil PropertiesSunday, 31 October 20101:30 PM - 5:30 PMRoom 601