Ask USGS
This is the U.S. Geological Survey information portal.

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Blue Marsh Lake
The U.S. Army Corps of Engineers, Philadelphia District, manages all facets of Blue Marsh Lake from flood control to recreation.

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Consortium for Scientific Assistance to Watersheds
Consortium for Scientific Assistance to Watersheds (C-SAW) is a team of specialists who provide eligible watershed groups or local project sponsors Program Management and Scientific Technical Assistan...

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Enviroscape
The three-dimensional landscapes (approx. 25" x 30" x 5") illustrate residential, recreational, agricultural, industrial and transportation areas -- all representing possible sources of water pollutio...

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Envision Groundwater Simulator
Envision Environmental Education manufactures an acrylic groundwater simulator which can demonstrate a variety of features of groundwater; used by educators, students, watershed organizations, drinkin...

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Glossary of Water Terms
Water Environment Federation glossary of water-related terms.

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Hydrologic Data and Information
This USGS website provides current and historical USGS hydrological conditions for Pennsylvania, with links to data from adjacent states and the nation.

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International Association of Hydrologists
IAH is a scientific and educational organisation whose aims are to promote research into and understanding of the proper management and protection of groundwater for the common good throughout the wor...

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Marcellus Shale - Appalachian Basin Natural Gas Play
This article discusses the potential of the Marcellus shale formation for gas production. The Marcellus Shale, is a Middle Devonian-age black, low density, carbonaceous (organic rich) shale that occu...

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Mineralfest
Mineralfest is the biannual mineral, fossil, and gem show sponsored by the Pennsylvania Earth Sciences Association

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