Hydro GeoAnalyst Module Guide

There are four editions of Hydro GeoAnalyst that are available with the following modules and features:

Data Management Modules and Features
Module/FeatureHGA (Standard)HGA+Description
Template ManagerTemplate Manager Hydro GeoAnalyst Module GuideFully customize your environmental database to your specific project needs with options to add unlimited tables and fields.
Data ImportData Import ImageEasily import and validate data from Excel, Access, EDDs, Mobile EDDs, Diver MON files, or LAS files. Also includes the option to bulk-load images.
Data ViewersImage put a pin in itEdit, manage, tabulate, search, and filter your project data using integrated data viewers and lists specifically designed to work with your data based on your project-specific needs.
Query Builder/ViewerQuery Builder/ViewerEasily create, save, and recall data queries to extract useful information about your project. Only minimal SQL syntax knowledge is required!
Lab QA/QCLab QA/QC imageVerify the accuracy of laboratory results through the analysis of blank, duplicate,   and matrix spike samples, dilution factors, detection limits, and holding times.
List EditorList Editor thumbnail Create lists of valid values for almost any field in your database (e.g. Station Type, Geologic Unit, etc.) for consistent and reliable data entry.
Material Specification EditorMaterial Specification Editor for Hydro GeoAnalystCreate, edit, and manage material specifications and patterns for use in your project well profiles, cross sections, and 3D scenes.
Analysis/Interpretation Modules and Features
Module/FeatureHGA (Standard)HGA+Description
Plot CollectionsPlot CollectionsCreate and organize plots based on dynamic queries of your data. Choose from 5 types of statistical plots and 5 general plots.
Map Viewermap_viewerCreate detailed maps based on a live connection to your data. Visualize stations, add detailed plots, and interpolate contours of the water table elevation, potentiometric heads, or concentrations of constituents of concern.
Well Profilewellprofile128Displays detailed well/station information stored as depths or intervals and includes support for deviated (non-vertical) wells by automatically calculating true vertical depth.
Cross-Section EditorCross Section Viewer Icon WHGProduce detailed cross-section diagrams showing geologic, hydrogeologic, and model layers as well as screen and water level data.
Scene ViewerScene ViewerDisplays and interpolates your project data in 3D quicker and easier than ever before and supports visualization of fence diagrams, plumes, deviated (non-vertical) wells, and more.
3D Interpolation3d-interpolationInterpolate data in three dimensions, plus time to estimate the spatial and temporal distribution of data.
Link to AquiferTestLink to AquiferTesEasily send your pumping test data to be analyzed, interpreted, and visualized in AquiferTest.
Collaboration Modules and Features
Module/FeatureHGA (Standard)HGA+Description
User ManagementUser ManagementManage and control the different levels of user access for each member of your extended team.
Event PlannerEvent PlannerEasily plan future sampling events and other field activities, schedule recurring sampling rounds, and set automatic reminders to ensure a sampling round is never missed.
Online ShareOnline Share ImagePublish project data to the web for communicating and presenting data to colleagues and stakeholders.
Mobile EDDMobile EDD ImageQuickly build reusable data collection forms that streamline the data collection process for field staff improving the integrity and quality of your data.
Quick CheckerImage Quick Checker for Hydro GeoAnalystA stand-alone utility that can be shared with project stakeholders to streamline importing data from external sources by validating it against your data integrity rules.
Print-To-Office ReportingPrint to office reporting Quickly prepare client-ready reports, figures, and graphics from data views, plot collections, well profiles, map views, and 3D scenes using Microsoft Office template documents.
Legacy (32-bit only) Modules and Features
Module/FeatureHGA (Standard)HGA+Description
Map ManagerearthCreate detailed maps of your site, and visualize stations, contours of water table or contaminant hot spots and define cross-section lines.
Cross-Section EditorCrossSectionEditorProduce detailed cross-section diagrams showing geologic, hydrogeologic and model layers as well as screen and water level data.
Report EditorReport EditorCreate professional custom reports containing data, 2D and 3D-views and have generated for your projects. (NOTE: This is a legacy module that is only available in existing projects and will be retired in a future version of HGA)
Hydro GeoAnalyst Plus (HGA+) Modules and Features
Module/FeatureHGA (Standard)HGA+Description
Sample ListSample listManage and view samples and related results. Leverage the power of the Query Builder to define lists of samples for use throughout the application
Parameter EditorImage Parameter Editor Define how parameters are used across your projects. Ensuring consistency from collection through analysis and allowing you to dynamically switch measurement units (e.g. ug/L to meq/L).
Water Quality StandardsImage Water Quality StandardsImport, manage, and update any number of Water Quality Standards to compare against sample data. Easily find and manage exceedances.
FunctionsImage FunctionsOver 50 functions and converters that allow you to perform quick, on-the-fly analyses on your water quality data, including dynamic unit conversion, ionic functions, corrosion and scaling indices, isotope calculations, and more.
Sample ReportsImage Sample reportsBuild customized analytical data reports for any dynamic sample sets including statistics and comparisons to one or more active standards.
PHREEQCIntegrated Geochemical Modeling (PHREEQC)Run basic geochemical simulations via integrated cross-functionality with PHREEQC, the popular geochemical modeling program developed by the USGS.
R-ConsoleR-ConsoleAllows you to run scripts in the R scripting language and leverage the thousands of available libraries that facilitate data analyses, visualization, categorization, and much more.
(Extended) Plot Collections(Extended) Plot CollectionsCreate interactive plots based on dynamic data sets. Support for 9 geochemical-specific plots in addition to what is available in HGA’s standard plot module.
(Extended) Map Viewer(Extended) Map ViewerCreate maps based on a live connection to your data. Includes support for all plot types and interactive selection of sample data.

Bit Level (32-bit vs 64-bit) Editions

As of Version 11.0, Hydro GeoAnalyst is available as either a 32-bit application or as a 64-bit application, both of which are included with your purchase of HGA or HGA+:

Memory and Performance

The bit-level installations have the following memory and performance attributes:

  • The 32-bit editions are limited by Windows Operating Systems to a hard limit of approximately 2GB of active RAM; exceeding this limit may cause errors and/or force the application to close.
  • The 64-bit editions do not have a memory limitation and have increased performance


The bit-level installations have the modules included/excluded, as described above. The modules which are only available in 32-bit editions of HGA are “legacy” modules, which are based on 32-bit technology. Updated or replacement versions of the legacy modules are under development and will be available in a future release.  In some cases, a near equivalent module is already available. For example, the Map Viewer is a near equivalent to the Map Manager, similarly, the Print-to-Office functionality effectively replaces the Report Editor module.

Edition Compatibility

Installation of the 32-bit and 64-bit application is mutually exclusive on the same machine; that is, you may only install one Edition/Version of HGA on the same machine. However, you can connect to an HGA project of the same version using either bit level. This means that depending on your needs, members of your HGA team can have the benefits of using the 64-bit version if the legacy modules are not needed; while others can still access these features.

Compatibility with Microsoft Office

Certain features, particularly Print-To-Office Reporting, require a connection to Microsoft products; in order to use these features, your edition of HGA must match the bit-level of the installed Microsoft Office on your machine. To check the bit level of Office:

  • Open an Office product (e.g. Excel)
  • Click File in the Ribbon
  • Select Account in the listed options along the left side of the window
  • Click the About {Product} button

HGA About Product button screen shot

  • The bit-level of your product will be displayed at the end of the first line in the window that opens:HGA Screen shot