Guam Hydrologic Survey Guam Hydrologic Survey

Guam Hydrologic Survey

Guam Public Law 24-247 and 24-161

  • Reports

    Reports and Agendas

    GHS Annual Reports

    GHS Annual Report 2025
    GHS Annual Report 2024
    GHS Annual Report 2023

    State of the Aquifer

    State of the Aquifer 2020

    Research, Education & Outreach

    REO Agenda 2021
    REO Agenda 2020
    REO Agenda 2019

    Sustainable Management

    Sustainable Management 2019
    Sustainable Management 2017
  • Research

    Research Areas

    Lens Dynamics
    July 28, 2025
    Typhoons
    July 29, 2025
    State of the Climate: Guam...
    July 29, 2025
    Wastewater Treatment Efficiency under Different...
    July 29, 2025
    PFAS
    July 29, 2025

    Groundwater & Hydrogeology

    Lens Dynamics

    Hydrology

    Climate & Weather

    State of the Climate: Guam 2015-2016
    Typhoons

    Wastewater & Toxicology

    PFAS
    Wastewater Treatment Efficiency under Different Salinity Levels
    Topics:
    Climate CNMI Events FEMA FSM GBSP
  • Library

    Library

    Groundwater & Hydrogeology

    Lens Dynamics

    Hydrology

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    Climate & Weather

    State of the Climate: Guam 2015-2016
    Typhoons

    Wastewater & Toxicology

    PFAS
    Wastewater Treatment Efficiency under Different Salinity Levels
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    Maps & Posters
    Presentations
    Web MApps
    MAppFx
    Sort & Search
    Maps & Posters
    Presentations
    Web MApps
    MAppFx

    Databases

    • Borehole Database
    • Chloride & Production Database
    • Climate & Weather Database
    Topics:
    Groundwater Hydrogeology Climate Weather Wastewater Toxicology MAppFx Maps

    Library

    • Sort & Search
    • Presentations
    • Maps & Posters
    • Web MApps
    • MAppFx
    • Sort & Search
    • Presentations
    • Maps & Posters
    • Web MApps
    • MAppFx

    Databases

    • Borehole Database
    • Chloride & Production Database
    • Climate & Weather Database

    Library

    • Sort & Search
    • Presentations
    • Maps & Posters
    • Web MApps
    • MAppFx

    Databases

    • Borehole Database
    • Chloride & Production Database
    • Climate & Weather Database
    Topics:
    Groundwater Hydrogeology Climate Weather Wastewater Toxicology MAppFx Maps
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