Modeling the occurrence and behavior of groundwater is a critical aspect to any groundwater studies, whether they're being done to plan a clean-up project or in the preliminary site studies for a planned future development. With the advent of sophisticated GIS technologies, groundwater modeling can now be done more accurately than ever before. These new modeling techniques are now being taught at the senior and graduate level in environmental and civil engineering programs, and are fast taking hold as the dominant form of modeling for many civil and environmental engineering projects. This book is the first to deomnstrate how to use GIS technology in predicting the behavior of groundwater.