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Activity

2025

• INVESTIGATING GROUNDWATER/SURFACE WATER INTERACTION OF GRAVEL PIT LAKES IN THE BRAZOS RIVER ALLUVIUM AQUIFER
  15 Water, Water Everywhere: Hydrology and Water Quality in the South-Central U.S.
  Tuesday, 11 March 2025

  8:00 AM - 12:00 PM

  112
• DEVELOPING PUBLIC OUTREACH MATERIALS FOR GROUNDWATER CONSERVATION: AN INFORMATIONAL BROCHURE FOR THE SOUTHERN TRINITY GROUNDWATER CONSERVATION DISTRICT, MCLENNAN COUNTY, TEXAS
  21 Water, Water Everywhere: Hydrology and Water Quality in the South-Central U.S. (Posters)
  Tuesday, 11 March 2025

  8:30 AM - 5:00 PM

  Lower Level Lobby

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2024

• A MULTI-SCALE ASSESSMENT OF SURFACE AND GROUNDWATER INTERACTIONS BETWEEN THE MIDDLE BRAZOS RIVER ALLUVIUM AQUIFER AND THE BRAZOS RIVER IN CENTRAL TEXAS
  224 D7. Groundwater - Surface Water Interactions I: from Sediment-water Interface to Watersheds and Responses to Climate, Landuse, and Other Changes
  Wednesday, 25 September 2024

  8:00 AM - 12:00 PM

  211B
• HYDROGEOLOGICAL INVESTIGATIONS OF SPRINGS IN BELL COUNTY, TEXAS, NEAR THE STILLHOUSE HOLLOW RESERVOIR
  T134 New Frontiers in Cave and Karst Science
  Monday, 23 September 2024

  1:30 PM - 5:30 PM

  212B
• A CASE STUDY OF APPLYING HUMAN-AI COLLABORATION TO AQUIFER TEST DESIGN: PLANNING, ANALYSIS, AND INTERPRETATION
  25 Case Histories of Practicing Environmental and Engineering Geologist Investigations
  Tuesday, 23 April 2024

  8:00 AM - 12:00 PM

  Kalahari Room, Oasis Hotel
• MONITORING THE TRINITY AQUIFER IN MCLENNAN COUNTY, TEXAS: AN ASSESSMENT AND STRATEGY FOR THE SOUTHERN TRINITY GROUNDWATER CONSERVATION DISTRICT
  16 Undergraduate and Graduate Geoscience Student Showcase (Posters)
  Monday, 22 April 2024

  8:00 AM - 5:30 PM

  Grand Ballroom, Oasis CC
• INTERACTIONS BETWEEN THE MIDDLE SEGMENT OF THE BRAZOS RIVER ALLUVIUM AQUIFER AND THE UNDERLYING BEDROCK AQUIFERS
  16 Undergraduate and Graduate Geoscience Student Showcase (Posters)
  Monday, 22 April 2024

  8:00 AM - 5:30 PM

  Grand Ballroom, Oasis CC
• THE INTERACTIONS OF STILLHOUSE HOLLOW RESERVOIR AND BELTON LAKE WITH THE TRINITY AND EDWARDS AQUIFERS OF CENTRAL TEXAS
  16 Undergraduate and Graduate Geoscience Student Showcase (Posters)
  Monday, 22 April 2024

  8:00 AM - 5:30 PM

  Grand Ballroom, Oasis CC
• SURFACE WATER AND GROUNDWATER INTERACTIONS IN THE MIDDLE SEGMENT OF THE BRAZOS RIVER ALLUVIUM AQUIFER
  16 Undergraduate and Graduate Geoscience Student Showcase (Posters)
  Monday, 22 April 2024

  8:00 AM - 5:30 PM

  Grand Ballroom, Oasis CC

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2023

• A NEW METHODOLOGY FOR COLLECTING ISOTOPIC PRECIPITATION DATA TO BETTER UNDERSTAND RECHARGE IN SHALLOW KARST AQUIFERS
  T156 A Hydrogeologic Career Well Lived: A Session on the Research Topics of Ken Bradbury
  Tuesday, 17 October 2023

  8:00 AM - 12:00 PM

  329
• UNDERSTANDING AND INTERPRETING BRAZOS RIVER ALLUVIUM AQUIFER WATER TABLE FLUCTUATIONS TO BETTER MANAGE WATER RESOURCES IN MCLENNAN COUNTY, TEXAS---A CASE STUDY
  26 Tech Fest Undergraduate Student Posters (Posters)
  Tuesday, 14 March 2023

  8:00 AM - 5:00 PM

  Exhibition Hall 112
• UNSTRESSED GROUNDWATER FLOW IN THE BRAZOS RIVER ALLUVIUM AQUIFER WITH IMPLICATIONS FOR TEMPORAL RANGES IN GROUNDWATER TO SURFACE WATER INTERACTIONS
  2 Hydrogeologic Challenges and Roles in Earth Systems
  Monday, 13 March 2023

  8:00 AM - 9:20 AM

  Room 109
• AQUIFER PUMP TESTING AS A METHOD TO TEACH HYDROGEOLOGY AT BAYLOR UNIVERSITY---A CASE STUDY
  17 Geoscience Education Recruitment and Retention: Adapting Pedagogy for Long-Term Inclusion, Diversity, and Interest in Geoscience
  Monday, 13 March 2023

  1:30 PM - 5:00 PM

  Room 108
• APPLICATION OF 2D AND PSEUDO-3D ELECTRICAL RESISTIVITY TOMOGRAPHY IN CHARACTERIZING SUBSURFACE PREFERENTIAL PATHWAYS IN KARST AQUIFERS
  10 Hydrogeology and Water Resources: Long-Term Sustainability and Management (Posters)
  Monday, 13 March 2023

  8:00 AM - 5:00 PM

  Exhibition Hall 112
• MONITORING THE TRINITY AQUIFER IN MCLENNAN COUNTY, TEXAS: AN ASSESSMENT AND STRATEGY FOR THE STGCD
  10 Hydrogeology and Water Resources: Long-Term Sustainability and Management (Posters)
  Monday, 13 March 2023

  8:00 AM - 5:00 PM

  Exhibition Hall 112
• EVALUATING DEEP GROUNDWATER CONTRIBUTIONS TO SHORT TERM ELEMENT CYCLING
  10 Hydrogeology and Water Resources: Long-Term Sustainability and Management (Posters)
  Monday, 13 March 2023

  8:00 AM - 5:00 PM

  Exhibition Hall 112

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2022

• GEOSCIENCES UNDERGRADUATE RECRUITING EXPERIENCE DURING NEW STUDENT ORIENTATION
  T91 Innovations in Holistic Student Training and Development
  Monday, 10 October 2022

  8:00 AM - 12:00 PM

  504
• POTENTIAL PROCESSES FOR ANNUAL AND DAILY FLUCTUATIONS OF PERCHED AQUIFER IN THE MONAHANS AND KERMIT DUNE FIELDS, WEST TEXAS, USA
  T28 Aeolian System Response to Environmental Change (Posters)
  Sunday, 9 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F
• TEACHING GEOSCIENCE IN A CHANGING CLIMATE: IT'S HARD TO TEACH STUDENTS WHO AREN'T IN YOUR CLASS
  10 Geoscience Education I: Geosciences Education Advancing Concepts and Inclusion
  Tuesday, 15 March 2022

  8:30 AM - 12:30 PM

  Online
• USING A SIMPLE FINITE ELEMENT MODEL TO EXPLORE GROUNDWATER FLOW DYNAMICS IN A FLUVIAL AQUIFER
  16 Sustainable Management in Fluvial Aquifers and Transboundary Issues
  Tuesday, 15 March 2022

  1:30 PM - 5:30 PM

  Online
• TRACING ORGANIC POLLUTANTS IN GRAVEL-PIT LAKES: A CASE STUDY IN THE BRAZOS RIVER ALLUVIUM AQUIFER
  14 Sustainable Management in Fluvial Aquifers and Transboundary Issues (Posters)
  Tuesday, 15 March 2022

  3:30 PM - 5:30 PM

  Online
• GRAVEL PIT LAKES IN THE BRAZOS RIVER ALLUVIUM AQUIFER
  16 Sustainable Management in Fluvial Aquifers and Transboundary Issues
  Tuesday, 15 March 2022

  1:30 PM - 5:30 PM

  Online

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2021

• GROUNDWATER/ SURFACE WATER INTERACTIONS: GRAVEL PIT LAKES IN THE BRAZOS RIVER ALLUVIUM AQUIFER
  T120 Groundwater–Surface Water Interactions in Streams, Lakes, and Wetlands (Posters)
  Monday, 11 October 2021

  2:30 PM - 6:30 PM

  Exhibit Hall A
• HELPING SOLVE INTERNATIONAL WATER PROBLEMS: TO KNOW, YOU NEED TO GO; TO HELP, YOU NEED TO GO AGAIN
  T48 Application of Student Research Projects, A Way to Solve Water-Related Problems—Issues in Developing Nations
  Sunday, 10 October 2021

  1:30 PM - 5:30 PM

  B112
• LESSONS LEARNED FROM THE CLASSROOM, LAB AND FIELD RESEARCH DURING COVID-19 RESTRICTIONS WITH APPLICATION TO FUTURE GEOSCIENCE TEACHING AT BAYLOR UNIVERSITY
  T19 The Lasting Effects of the 2020–2021 COVID-19 Crisis on Geoscience Education: Insights, Problems, and Unanticipated Benefits I
  Sunday, 10 October 2021

  8:00 AM - 12:00 PM

  B113/B114 (Hybrid Room)

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2020

• RECHARGE POTENTIAL THROUGH TRIBUTARIES TO AN UNCONFINED ALLUVIAL AQUIFER
  T253 Advances in Understanding Processes at or Near the Groundwater–Surface Water Interface
  Friday, 30 October 2020

  10:00 AM - 2:00 PM

  Meeting Rooms
• SPRINGSHED DELINEATION FOR THE DOWNTOWN SALADO SPRING COMPLEX, SALADO, TEXAS
  T213 Karst Hydrology and Hydrogeology
  Thursday, 29 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• SUSTAINABLE GROUNDWATER USE IN AN UNCONFINED ALLUVIAL TERRACE
  T254 A Showcase of Undergraduate Research in Hydrogeology (Posters)
  Monday, 26 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• ASSESSING SUPPLEMENTAL UNCONFINED AQUIFERS AS POTABLE GROUND WATER RESOURCE IN CENTRAL TEXAS, MCLENNAN COUNTY
  4 Hydrogeology and Water Resources
  Monday, 9 March 2020

  8:00 AM - 12:00 PM

  Meeting Room 201A

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2019

• HOW MUCH HETEROGENEITY NEEDS TO BE CONSIDERED IN THE GROUNDWATER-SURFACE WATER INTERFACE
  T299 Advances in Understanding Processes at or Near the Groundwater–Surface Water Interface
  Wednesday, 25 September 2019

  1:30 PM - 5:30 PM

  Room 105BC, West Building
• BEYOND THE DESIGNATED MONITOR WELL: HOW MONITORING WATER LEVELS IN DOMESTIC WELLS AND SHARING RESULTS WITH OWNERS IMPROVES UNDERSTANDING AND ENCOURAGES COOPERATION
  T249 Improving Scientific Literacy and Dispelling Misconceptions about Wicked Water Resource Problems
  Wednesday, 25 September 2019

  8:00 AM - 12:00 PM

  Room 104AB, West Building
• SPRINGS UNDER THE INFLUENCE OF SURFACE WATER: USING EDNA AS A TRACER
  T174 Innovations in Research of Springs and Other Features at the Groundwater–Surface Water Interface
  Tuesday, 24 September 2019

  8:00 AM - 12:00 PM

  Room 104AB, West Building
• AQUIFER TESTS: EDUCATIONAL, TECHNICAL AND PRESENTATION EXPERIENCES AT A RESEARCH UNIVERSITY: A CASE STUDY WORKING WITH A LOCAL WATER DISTRICT
  T155 Beyond the Road-Cut: Virtual, Local, and Nontraditional “Field” Teaching and Learning Experiences
  Monday, 23 September 2019

  1:30 PM - 5:30 PM

  Room 106BC, West Building
• USING MICROGRAVITY AND PASSIVE SEISMIC METHODS JOINTLY TO EXPLORE THE BRAZOS RIVER ALLUVIUM AQUIFER
  T24 New Advances in Using Near-Surface Geophysics to Solve Geological Problems (Posters)
  Sunday, 22 September 2019

  9:00 AM - 5:30 PM

  Hall AB, North Building
• AQUIFER SUSTAINABILITY: MODERN METEOROLOGICAL DATA GENERATES MORE ACCURATE RECHARGE CALCULATIONS
  T33 A Showcase of Undergraduate Research in Hydrogeology (Posters)
  Sunday, 22 September 2019

  9:00 AM - 5:30 PM

  Hall AB, North Building

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2018

• HYDROGEOLOGY OF SPILLWAY CREEK, BELTON, TEXAS
  12 Karst Development and Karst Hydrogeology in the Mid-Continent Region of the United States
  Tuesday, 13 March 2018

  8:00 AM - 11:20 AM

  Conway Room
• EDUCATIONAL AND RESEARCH EXPERIENCE USING GEOPROBE 6620DT TO CONDUCT SHALLOW SEDIMENT ASSESSMENT AT A RESEARCH UNIVERSITY
  14 Earth and Space Science K-Higher Education
  Tuesday, 13 March 2018

  8:00 AM - 12:00 PM

  Harris Brake
• HEALTH, TRACE ELEMENTS, AND HYDROGEOLOGY: WHAT ARE THE RESEARCH TOPICS?
  3 Geology and Health Research on Trace Elements in Drinking Waters, and Outreach and Education Activities
  Monday, 12 March 2018

  8:00 AM - 11:10 AM

  Chicot Room
• IDENTIFYING SALINITY SOURCES IN THE NORTHERN SEGMENT OF THE BRAZOS RIVER ALLUVIUM AQUIFER
  10 D1. Hydrogeology and Water Quality of the Mid-Continent U.S. and Mexico
  Monday, 12 March 2018

  1:30 PM - 4:25 PM

  Conway Room

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2017

• TEACHING A SUBSURFACE, SIMULATED SUBJECT OUTDOORS: HOW TO LEVERAGE TIME FOR FIELD HYDROGEOLOGY
  T163 On the Cutting Edge: Fifteen Years of Impacts on Geoscience Education (Posters)
  Monday, 23 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• CLASSROOM LESSONS FROM GEOSCIENCE UNDERGRADUATE RESEARCH AND PRESENTATIONS
  T137 Geoscience Education Research: Implications for Undergraduate Geoscience Teaching and Learning
  Monday, 23 October 2017

  1:30 PM - 5:30 PM

  Room 2A
• ANALYZING DISSOLVED CARBON IN SHALLOW GROUNDWATER
  168 D2. Recent Advances in Hydrogeology (Posters)
  Monday, 23 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• ASSESSING RECHARGE IN ALLUVIAL AQUIFER SYSTEMS: AN INNOVATIVE APPROACH
  168 D2. Recent Advances in Hydrogeology (Posters)
  Monday, 23 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• FOCUSING ON THE FUTURE IN UGANDA AND TEXAS; HOW ON-GOING COMMUNITY COLLABORATION COMBINED WITH INTERDISCIPLINARY EDUCATION AND RESEARCH MAY ENHANCE STEWARDSHIP ACROSS CONTINENTS
  T93 Cross-Border Community Engagement Using Geoscience Research, Education, and Outreach
  Monday, 23 October 2017

  8:00 AM - 12:00 PM

  Room 613/614
• SPATIAL VARIABILITY IN PRECIPITATION: CLUES TO DIFFUSE RECHARGE IN SHALLOW KARST AQUIFERS
  T37 In Honor of John M. (Jack) Sharp Jr.: Celebrating over 40 Years of Science, Students, and Stewardship II
  Sunday, 22 October 2017

  1:30 PM - 5:30 PM

  Room 615/616/617
• HYDROGEOLOGICAL ASSESSMENT ON TONKAWA FALLS, CRAWFORD, TEXAS
  T82 A Showcase of Undergraduate Research in Hydrogeology (Posters)
  Sunday, 22 October 2017

  9:00 AM - 5:30 PM

  Halls 4EF
• A DETAILED HYDROLOGICAL ASSESSMENT OF THE DOWNTOWN SALADO SPRING COMPLEX
  3 Karst: From Sinkholes to Springs and Everything in Between
  Monday, 13 March 2017

  8:00 AM - 12:05 PM

  Grand Ballroom B
• CARBON IN THE BRAZOS RIVER ALLUVIUM AQUIFER
  10 Texas Water Research Network: A Statewide Initiative to Integrate and Advance Water Research from Inception to Application II
  Monday, 13 March 2017

  1:30 PM - 5:30 PM

  Grand Ballroom A
• THE IMPORTANCE OF DETAILED STRATIGRAPHY IN ASSESSING ALLUVIAL AQUIFERS
  10 Texas Water Research Network: A Statewide Initiative to Integrate and Advance Water Research from Inception to Application II
  Monday, 13 March 2017

  1:30 PM - 5:30 PM

  Grand Ballroom A

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2015

• APPLIED FORENSIC INVESTIGATION OF ELEVATED ARSENIC LEVELS IN A DEEP CONFINED AQUIFER
  T274 Arsenic: Source to Sustainability I
  Wednesday, 4 November 2015

  8:00 AM - 12:00 PM

  Room 337
• INFLUENCE OF HYDRAULIC FRACTURING ON LEAKY ABANDONED WELLS
  T275 Water and Fluid Migration During Energy Development: Implications for Hydraulic Fracturing, CO2 Storage, Enhanced Oil Recovery, In Situ Uranium Recovery, and Waste Water Injection
  Wednesday, 4 November 2015

  8:00 AM - 12:00 PM

  Room 309
• PAIRING TRACERS WITH MONITORING TO IMPROVE UNDERSTANDING OF KARST SPRING COMPLEX PROCESSES
  T92 Karst Processes and Speleogenesis: Advances in Monitoring, Modeling, and Measurements
  Monday, 2 November 2015

  8:00 AM - 12:00 PM

  Room 340
• CAN AN UNDERGRADUATE THESIS BE IMBEDDED IN A CLASS PROJECT; A CASE STUDY IN PROGRESS
  T27 Embedded Research Projects in Upper Level Undergraduate Courses: A Plausible Panacea for the Dwindling Science and Engineering (S&E) Researchers Community (Posters)
  Sunday, 1 November 2015

  9:00 AM - 5:30 PM

  Exhibit Hall
• POTENTIAL OVER-DEVELOPMENT AND AQUIFER CO-MINGLING IN THE HENSELL “MIDDLE TRINITY” AQUIFER; A STUDY WITH BI-PARTISAN MANAGEMENT SUPPORT
  T63 Effects of Urbanization on Hydrological and Geochemical Cycling in Surface and Ground Waters
  Sunday, 1 November 2015

  1:30 PM - 5:30 PM

  Room 336

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2014

• MULTI-PARAMETER PROFILING IN A KARST SPRING INVESTIGATION: INSIGHTFUL, AFFORDABLE AND EASY
  T184 Enhancing the Toolkit for Karst Investigations
  Tuesday, 21 October 2014

  8:00 AM - 12:00 PM

  208/209
• TIME NOT WASTED: HOW COLLABORATIVE RESEARCH AND EDUCATION HELP BUILD GROUNDWATER SUSTAINABILITY IN RURAL NORTHERN UGANDA, AFRICA
  T16 Geoscience for the Public Good: Toward a Sustainable Future
  Sunday, 19 October 2014

  8:00 AM - 12:00 PM

  212

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2013

• PEEKING INTO THE "GREY BOX": A MULTI-METHOD APPROACH TO STUDYING A KARST AQUIFER IN CENTRAL TEXAS
  T10 Streams and Aquifers: Integrating the Physical and Chemical I
  Sunday, 27 October 2013

  8:00 AM - 12:00 PM

  Room 301
• MANAGING GROUNDWATER DURING DROUGHTS WITH DFCS AND MAG: CONFINED VERSUS UNCONFINED?
  23 Desired Future Conditions and Modeled Available Groundwater: The New Groundwater Management Paradigm in Texas
  Friday, 5 April 2013

  8:00 AM - 12:00 PM

  Classroom 202
• HOW MUCH HAVE WE LOST?  AFFECTS OF URBANIZATION AND MINING ON AN ALLUVIAL AQUIFER IN CENTRAL TEXAS
  4 The Role of the Geosciences in Water Sustainability I: Examples, Challenges, and Societal Impacts
  Thursday, 4 April 2013

  8:00 AM - 12:00 PM

  Classroom 106
• COMPARING EFFLUENT QUALITY ACROSS MUNICIPAL AND ON-SITE WASTEWATER TREATMENT SYSTEMS
  18 The Role of the Geosciences in Water Sustainability: Examples, Challenges, and Societal Impacts (Posters)
  Thursday, 4 April 2013

  1:30 PM - 5:30 PM

  Classroom 107

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2012

• BUILDING TOWARDS GROUNDWATER SUSTAINABILITY IN RURAL NORTHERN UGANDA, AFRICA
  T36 Building Capacity for Hydrologic Science in Water-Stressed Regions of the World (Posters)
  Sunday, 4 November 2012

  9:00 AM - 6:30 PM

  Hall B
• ASSESSING FLOODPLAIN RECHARGE AND INFILTRATION BELOW A CONSTRUCTED WETLAND, NORTH CENTRAL TEXAS
  15 Aquifers of West Texas
  Friday, 9 March 2012

  9:00 AM - 12:00 PM

  Espino C
• RESTORING FRAMEWORK AND ASSESING DEGRADATION IN AN ALLUVIAL AQUIFER
  15 Aquifers of West Texas
  Friday, 9 March 2012

  9:00 AM - 12:00 PM

  Espino C

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2011

• GROUNDWATER MANAGEMENT TO PREVENT SALTWATER ENCROACHMENT, HACIENDA BARU COSTA RICA
  T160 International Development and the Geosciences
  Tuesday, 11 October 2011

  8:00 AM - 12:00 PM

  Room 211AB

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2009

• GIS RESEARCH APPLICATIONS AND GROUNDWATER MANAGEMENT
  6 Undergraduate Research (Posters)
  Monday, 16 March 2009

  8:00 AM - 6:00 PM

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2008

• Water and Wastewater Management in Rural Costa Rica
  257 Environmental Geoscience II
  Tuesday, 7 October 2008

  1:30 PM - 5:30 PM
• Porosity Loss in Subsurface -Flow Treatment Wetlands
  257 Environmental Geoscience II
  Tuesday, 7 October 2008

  1:30 PM - 5:30 PM

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2006

• RECALIBRATED RECHARGE: SOLVING COMPLEX PROBLEMS WITH MODELS
  T194 The Spatial and Temporal Variability of Ground Water Recharge
  Wednesday, 25 October 2006

  8:00 AM - 12:00 PM
• TEACHING HYDROGEOLOGY IN THE 21ST CENTURY: RESOURCES DEMONSTRATING THE INTERFACE BETWEEN HYDROGEOLOGY AND OTHER SCIENTIFIC AND SOCIAL DISCIPLINES
  T174 Teaching Hydrogeology in the 21st Century (Posters)
  Tuesday, 24 October 2006

  1:30 PM - 5:30 PM

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2002

• USING SWAT-MODFLOW FOR ARID BASIN MODELING AND PREDICTION
  7 Hydrogeology (Posters) I: Physical Hydrogeology
  Sunday, 27 October 2002

  8:00 AM - 12:00 PM

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Date Unknown

• The Use of GIS in a Groundwater Conservation District
  301 Hydrogeology (Posters)
• HYDRODYNAMICS OF SMALL SPRINGS ALONG THE SOUTHERN EDGE OF THE EDWARDS PLATEAU, EDWARDS-TRINITY AQUIFER, BANDERA COUNTY, TEXAS
  T245 Sustainable Management of Water Resources (Posters)
• RECHARGE STUDIES IN A SHALLOW SAND AQUIFER USING SWAT AND MODLFOW
  T245 Sustainable Management of Water Resources (Posters)
• QUANTIFYING SEASONAL AND DIURNAL STREAM LOSS IN FIRST-ORDER, SPRING-FED STREAMS ON THE CARBONATE TERRAIN OF THE EDWARDS PLATEAU THROUGH THE USE OF MODELING TECHNIQUES
  243 Hydrogeology (Posters) II
• EFFECTS OF RECHARGE ON GROUNDWATER BELOW ON-SITE WASTEWATER DRAIN FIELDS AS RELATED TO SOIL TYPE
  86 Hydrogeology (Posters)