Popular engineering forum site, including a very active section for “Soil/Groundwater environmental engineering”.
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Geology.com
A great source for geology news and they also have a number of interesting and useful resources and maps. Visit Geology.com

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iCivilEngineer.com
iCivilEngineer.com is a knowledge portal specially designed for civil engineering professionals and students. It has two goals in mind: 1) collect and catalog valuable civil engineering relevant Internet resources so that people can find information […]

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Saguaro GeoServices, Inc.
Saguaro GeoServices is a geotechnical engineering firm specializing in transportation, mining and rock blasting projects. They are located in Tucson, Arizona. Visit Saguaro GeoServices, Inc.