On-line Tools for Site Assessment Calculation - USEPA A set of prepackaged software tools developed and provided on-line by USEPA for performing simple site assessment calculations. Calculators allow easy calculation of groundwater hydraulic gradient, seepage velocity, and plume transport (1D and 3D).
Contaminants Found in Groundwater - USGS Describes the process of seeping groundwater dissolving chemical contaminants from subsurface waste sources, and provides a list of common groundwater contaminants with associated sources of the contaminant and its potential health effects.
Water Resources Groundwater Software - USGS Compendium of information on water resources groundwater software in areas such as groundwater flow, contaminant transport, geochemical reactions, and groundwater-surface water interactions.
Ground Water Modeling Research Discusses research into the use of computer models to better understand and forecast the behavior of
contaminants in groundwater. Provides a list of free groundwater modeling software.
Fundamentals of Ground-Water Modeling Presents an overview of the essential components of ground-water flow and contaminant transport modeling in saturated porous media. Groundwater contaminant transport processes, simple equations, input parameters, and applications are discussed, along with an explanation of the differences between analytical and numerical computer models.