A family of general purpose public-domain graphical pre- and post-processors for the numerical modeler, combining GIS and numerical modeling. Includes plug-in extensions for the most widely used groundwater models, including MODFLOW, MOC3D, HST3D, SUTRA, and NAPL.

Offers GMS, FEFLOW, and other groundwater software programs. Also has products for hydraulics and surface water hydrology.

Hydrogeochemical exploratory and statistical tools for analysis and management of monitoring data at landfills and industrial facilities.

Offers low-priced software for environmental and earth science professionals -- create boring logs, calculate hydraulic conductivity, create variogram plots.

Provides software, groundwater monitoring equipment, and magnetic instruments for environmental, agriculture, mining and education sectors.

3d groundwater visualization application for analysis and communication of environmental groundwater data. Capabilities include mapping, 2d/3d contouring, pie charts, time history charting, radial diagrams and database queries.

Groundwater modeling software, services, and training, including sales and technical support for WinFlow, WinTran, MODFLOW-Win32, Groundwater Vistas, and AquiferWin32.

A finite-element simulation package for 3D and 2D density-dependent flow, mass and heat transport processes in groundwater and in the unsaturated soil. Description, pricing, and downloadable demo, from WASY Ltd.

Download GIS GeoLink 2.0 a powerful general-purpose geographic information system designed for solving hydrogeological, cartographic, referential, statistical and environmental problems. Also offers off-shore software development, consulting services in hydrogeology, hydrometric sensors and instruments.

Software packages for groundwater flow, transport modeling, GIS and data management.

Software combines a relational data base and a Ground Water Information System (GWIS). Applications include mapping, well logs, aquifer test analysis, and plotting of water chemistry data.

Resources for users of GMS, which integrates popular models such as MODFLOW, MODPATH, MT3Dms, RT3D, FEMWATER and SEEP2D. Free downloadable resources and examples.

Purchase groundwater software now and download immediately at discounted prices. Many applications available: flow and transport modeling, slope stability analysis, landfill design, and geostatistics.

For simulation of coupled non-isothermal (i.e., includes heat transfer equations) hydrologic transport and biogeochemical kinetic and/or equilibrium reactions in variably saturated media. 1-, 2-, or 3-dimensional.

Producer of ModTech, groundwater flow and contaminant transport simulation code with integrated geographic information system functionality.

Developer of software tools for groundwater modeling and aquifer test analysis.

A software package for simulating two-dimensional movement of water, heat, and multiple solutes in variably saturated media.

International Ground-Water Modeling Center distributes a large number of practical, public domain and proprietary ground-water programs, ranging from codes based on simple analytical solutions to those incorporating advanced and complex numerical techniques.

Offers several programs for applications including multiple-aquifer steady-state and transient flow, aquifer test analysis, and interpretation of geo-electrical measurements with Schlumberger or Wenner configurations. Downloads available.

USGS's popular modular 3D finite-difference ground-water flow model, plus pre-processors, post-processors, and adaptations for contaminant transport, and air flow.

Visual pre- and post-processor for groundwater modeling, supporting numerous modeling codes including TOUGH, FEHM, NUFT, ASHPLUME, WAPDEG, MODFLOW/MODPATH, FRAC3DVS and SWIFT.

USGS aqueous geochemistry codes, including PHREEQ (Speciation, Reaction-Path, Advective Transport, and Inverse Geochemical Calculations) and NETPATH (Interactive Code For Modeling Net Geochemical Reactions Along a Flow Path).

Demo and sales of Windows software for statistical analyses of groundwater monitoring data required by the US RCRA statute.

Provides groundwater and environmental software. Downloadable demos.

Develops applications to help hydrogeologists analyze aquifer tests and design effective aquifer remediation systems.

Resources for users of the USGS-developed MODFLOW groundwater flow modeling package: online/downloadable tutorial, reference guide, lists of online MODFLOW resources vendors, and examples of input files.

Describes and offers a modular software package for modelling three-dimensional density-dependent groundwater flow, contaminant transport, and visualisation. Supports both finite element (Flairs) and finite difference (ModFlow) calculation methods.

Computer codes designed to model various ground-water and related hydrologic and geochemical processes and to help estimate related parameters.

Firm based in Germany offers groundwater simulation software and related training and support, as well as consulting in groundwater monitoring, management, and protection, surface water management and hydrology. Describes capabilities.

Offers analytical, modelling, and software development skills for hydrology, water resources, groundwater, and water quality.

Develops and sells groundwater and environmental software for groundwater modeling, subsurface visualization, pumping test analysis, geochemistry, and natural attenuation and risk assessment. Products include Visual MODFLOW, AquiferTest, Visual Groundwater, Visual HELP, AquaChem, WHI UnSat Suite and the MoNA ToolKit.