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Activity

2025

• HYDROCHEMICAL STUDIES OF LOS ANGELES RIVER FLOWS FROM HEADWATERS TO SEPULVEDA DAM - A COMPARISON OF DRY AND WET YEAR SAMPLING EVENTS
  1 Investigations of Hydrologic Resources in the Cordillera
  Wednesday, 2 April 2025

  8:00 AM - 12:00 PM

  Granada/Hermosa
• IDENTIFICATION OF GROUND WATER ORIGINS IN THE SALTON SEA AREA USING ENVIRONMENTAL ISOTOPES
  1 Investigations of Hydrologic Resources in the Cordillera
  Wednesday, 2 April 2025

  8:00 AM - 12:00 PM

  Granada/Hermosa

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2024

• OVERVIEW OF PRELIMINARY FINDINGS OF HYDROCHEMISTRY AND ISOTOPE HYDROLOGY OF LOS ANGELES RIVER BETWEEN RIVER HEADWATERS AND OUTFALL AT PACIFIC OCEAN
  T261 Hydrogeology in Support of Integrated Water Management (Posters)
  Wednesday, 25 September 2024

  8:00 AM - 5:30 PM

  Hall D
• SYNOPTIC CHANGES OF SALINITY, NUTRIENTS, AND ARSENIC IN DRAINAGE CHANNELS FEEDING INTO BOMBAY BEACH WETLANDS, SALTON SEA AREA, CALIFORNIA
  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
• SPATIAL HYDROCHEMICAL TRENDS IN ARROYO SECO, A MAJOR TRIBUTARY OF THE LOS ANGELES RIVER
  173 D7. Groundwater - Surface Water Interactions: from Sediment-water Interface to Watersheds and Responses to Climate, Landuse, and Other Changes (Posters)
  Tuesday, 24 September 2024

  8:00 AM - 5:30 PM

  Hall D
• INVESTIGATING THE SOURCE WATERS, SALINITY, NUTRIENTS, AND SELENIUM IN THE SALTON SEA WILDLIFE AREA
  T162 Hydrogeology in Support of Integrated Water Management
  Tuesday, 24 September 2024

  8:00 AM - 12:00 PM

  211A

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2023

• BIASES IN HYDROGEOLOGICAL DATA AND EFFECTS ON HYDROGEOLOGIC SYSTEM CONCEPTUALIZATION
  T154 Characterization of Karst Aquifers Using Chemical, Biological, and Hydrogeological Data
  Tuesday, 17 October 2023

  8:00 AM - 12:00 PM

  310 / 311

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2022

• HYDROGEOLOGIC STUDIES OF TERRESTRIAL GROUNDWATER INPUTS TO NEW WETLANDS ON THE SHORES OF THE RETREATING SALTON SEA, CA
  T88 Human Impacts on the Hydrologic Cycle
  Monday, 10 October 2022

  8:00 AM - 12:00 PM

  405
• ISOTOPE HYDROLOGY AND HYDROCHEMISTRY OF THE UPPER LOS ANGELES RIVER, CA
  T61 A Showcase of Undergraduate Research in Hydrogeology (Posters)
  Sunday, 9 October 2022

  2:00 PM - 6:00 PM

  Exhibit Hall F

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2020

• HYDROCHEMICAL CHARACTERIZATION OF GEOLOGICAL AND ANTHROPOGENIC INPUTS OF SALINITY IN THE EL PASO/JUAREZ VALLEY
  T61 Groundwater in Mountain Systems II
  Tuesday, 27 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• STABLE WATER ISOTOPE HYDROLOGY OF THE SANTA MONICA MOUNTAINS – A FIFTEEN YEAR SYNOPSIS
  13 Hydrogeology (Posters)
  Tuesday, 12 May 2020

  9:00 AM - 6:00 PM

  Fountain Ballroom
• ANALYSIS OF BACTERIA AND NUTRIENT LEVELS IN SUBSURFACE STORM DRAINS RECEIVING FLOWS FROM GROUNDWATER SEEPAGE AND URBAN RUNOFF IN DRY WEATHER CONDITIONS
  13 Hydrogeology (Posters)
  Tuesday, 12 May 2020

  9:00 AM - 6:00 PM

  Fountain Ballroom
• HYDROCHEMICAL CHARACTERIZATION OF GEOLOGICAL AND ANTHROPOGENIC INPUTS OF SALINITY IN THE EL PASO/JUAREZ VALLEY
  13 Hydrogeology (Posters)
  Tuesday, 12 May 2020

  9:00 AM - 6:00 PM

  Fountain Ballroom

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2019

• COMPARISON OF WATER CHEMISTRY ISSUING FROM SPRINGS IN LINED AND UNLINED CHANNELS IN URBAN AREAS, IMPLICATIONS FOR STREAM RESTORATION
  T267 Innovations in Research of Springs and Other Features at the Groundwater–Surface Water Interface (Posters)
  Wednesday, 25 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building
• AN ISOTOPIC INVESTIGATION OF THE SOURCES OF RECHARGE IN THE COACHELLA VALLEY AQUIFER SYSTEM, RIVERSIDE COUNTY, CALIFORNIA
  T112 Regional Groundwater Availability and Sustainability Studies: Advances in Methods and Approaches (Posters)
  Monday, 23 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building
• NEW CONCEPTUAL MODELS OF HYDROGEOLOGIC PROCESSES IN THE RIO GRANDE BASIN ESTABLISHED BY ENVIRONMENTAL TRACERS
  T18 Advances in Geophysical, Geological, and Geochemical Investigations of Hydrological Systems in the Basin and Ranges/Rio Grande Rift Basins
  Sunday, 22 September 2019

  8:00 AM - 12:00 PM

  Room 105BC, West Building

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2017

• INTEGRATON OF CARBON-14 AND OXYGEN-18 AS A BASIS FOR DIFFERENTIATING BETWEEN LATE PLEISTOCENE AND POST-PLEISTOCENE GROUNDWATER AGES ALONG FLOW PATHS OF TWO WEST TEXAS BOLSON 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

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2016

• GEOTHERMAL ANOMALIES AND COMPARTMENTALIZED GROUNDWATER FLOW AT A MOUNTAIN BLOCK-GRABEN INTERFACE
  331 Recent Advances in Hydrogeology (Posters)
  Wednesday, 28 September 2016

  9:00 AM - 6:30 PM

  Exhibit Hall E/F
• REGIONAL MULTIYEAR STUDIES DEFINE NATURAL AND HUMAN FACTORS IN SOLUTE LOADING TO THE WATERSHEDS OF THE SANTA MONICA MOUNTAINS NATURAL RECREATION AREA
  T132 A Centennial Celebration of Geology and Hydrology in the National Parks: Research, Mapping, and Resource Management II
  Monday, 26 September 2016

  1:30 PM - 5:30 PM

  Mile High Ballroom 4D
• STREAM-AQUIFER INTERACTIONS IN URBAN WATERSHEDS ALONG LINED AND UNLINED CHANNELS
  2 Hydrogeology of Complex Geologic Settings, Urban Environments, and Contaminated Ecosystems
  Monday, 4 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 203 C
• GEOLOGIC INFLUENCES OF SECONDARY MINERAL DISSOLUTION TO THE HYDROGEOCHEMISTRY OF SHALLOW GROUNDWATER DISCHARGING TO URBAN CATCHMENTS WITHIN THE SANTA MONICA MOUNTAINS WATERSHED
  9 Hydrogeology of Complex Geologic Settings, Urban Environments, and Contaminated Ecosystems (Posters)
  Monday, 4 April 2016

  8:30 AM - 5:30 PM

  Ballroom C

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2015

• ISOTOPIC AND HYDROCHEMICAL IDENTIFICATION OF SOURCE WATERS AND POLLUTANTS IN MALIBU CREEK WATERSHED, CA
  3 Metalloids and Other Geogenic Contaminants in the Environment
  Monday, 11 May 2015

  8:00 AM - 12:00 PM

  Room 116

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2013

• 2011 HYDROGEOLOGY FIELD TRIPS NEAR THE US/MEXICO BORDER CREATE SECURITY CONCERNS, BUT FINISH WITH STUDENT EXCITEMENT AND BONDING
  T242 Great Geological Field Trips (Posters)
  Tuesday, 29 October 2013

  9:00 AM - 6:30 PM

  Hall D
• ISOTOPIC AND HYDROCHEMICAL IDENTIFICATION OF SOURCE WATERS AND EFFECTS OF SEASONAL CHANGES ON DRY WEATHER STREAM FLOWS, SANTA MONICA MOUNTAINS, CA
  T134 Streams and Aquifers: Integrating the Physical and Chemical (Posters)
  Monday, 28 October 2013

  9:00 AM - 6:30 PM

  Hall D
• INTEGRATION OF CONCRETE LINED STORM DRAINS IN STUDIES OF STREAM/AQUIFER INTERACTIONS IN URBAN SETTINGS - MORE DYNAMIC THAN YOU MIGHT AT FIRST THINK
  T71 Streams and Aquifers: Integrating the Physical and Chemical II
  Sunday, 27 October 2013

  1:00 PM - 5:00 PM

  Room 301
• INVESTIGATION OF NITRATE AND SELENIUM SOURCES IN MALIBU CREEK WATERSHED, EMPHASIZING A COMPARATIVE ANALYSIS OF TWO MAJOR CREEKS: LAS VIRGENES & MEDEA CREEK
  34 Hydrogeology (Posters)
  Sunday, 27 October 2013

  9:00 AM - 6:30 PM

  Hall D

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2011

• EVOLVING ARSENIC AND SELENIUM TRENDS BENEATH A DRAINED TERRESTRIAL MARSH
  T283 Advances in Characterizing Sources and Release of Naturally Occurring Trace Elements to Aquatic Systems and Groundwater
  Wednesday, 12 October 2011

  1:30 PM - 5:30 PM

  Room M100FG
• MS DEGREE OPTION IN HYDROGEOLOGY INCREASES RECRUITMENT, GRADUATION NUMBERS, AND DIVERSITY
  97 Geoscience Education (Posters) II
  Monday, 10 October 2011

  9:00 AM - 6:00 PM

  Hall C

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2010

• STABLE ISOTOPES EXAMINE HYDROLOGIC INPUTS TO URBAN STREAMS, SANTA MONICA MOUNTAINS, CALIFORNIA
  T152 The Hydrogeological Effects of Urbanization II
  Tuesday, 2 November 2010

  8:00 AM - 12:00 PM

  Room 402
• HYDROGEOLOGIC FACTORS IN SELENIUM LOADING TO SOUTHERN CALIFORNIA WATERSHEDS
  46 Managing Groundwater in the Cordillera I
  Saturday, 29 May 2010

  8:30 AM - 12:00 PM

  Platinum 1
• ENVIRONMENTAL ISOTOPES ASSESS GROUNDWATER FLOW AT AN ALLUVIAL FAN/PLAYA MARGIN INTERFACE, MOJAVE DESERT
  52 Managing Groundwater in the Cordillera (Posters)
  Saturday, 29 May 2010

  8:30 AM - 12:00 PM

  Platinum 5-6
• ANALYSIS OF STABLE ISOTOPES AND RADIOISOTOPES ASSESS GROUNDWATER FLOW AT DOS PALMAS PRESERVE AND VICINITY, SALTON SEA AREA, CALIFORNIA
  52 Managing Groundwater in the Cordillera (Posters)
  Saturday, 29 May 2010

  8:30 AM - 12:00 PM

  Platinum 5-6

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2004

• HYDROLOGIC PROCESSES IN THE RIO GRANDE BASIN ABOVE EL PASO, TEXAS: A BASIN SCALE VIEW WITH O AND H ISOTOPES
  194 Hydrogeology III: Hydrogeochemistry
  Wednesday, 10 November 2004

  8:00 AM - 12:00 PM

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2003

• NEW INSIGHTS ON SALINIZATION AND PREDEVELOPMENT RECHARGE OF THE RIO GRANDE AQUIFER, EL PASO/JUAREZ AREA
  T67 Groundwater and Watershed Analysis Across Political Boundaries
  Monday, 3 November 2003

  8:00 AM - 12:00 PM
• ISOTOPES ( O, H, TRITIUM) AS INDICATORS OF WATER MOVEMENT NEAR THE INTERNATIONAL BOUNDARY IN THE EL PASO (TEXAS) -CIUDAD JUAREZ(CHIHUAHUA) METROPOLITAN AREA
  T67 Groundwater and Watershed Analysis Across Political Boundaries
  Monday, 3 November 2003

  8:00 AM - 12:00 PM

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Date Unknown

• SOURCES OF EXCESS PHOSPHOROUS AND NITROGEN IN A COASTAL WATERSHED
  9 Hydrogeology (Sponsored by the AAPG – Division of Environmental Geosciences) (Posters)
• REVISITING A CLASSIFICATION SCHEME FOR SOUTHWESTERN ALLUVIAL BASIN AQUIFERS
  9 Hydrogeology (Sponsored by the AAPG – Division of Environmental Geosciences) (Posters)