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Hydraulic Fracturing: The Process | FracFocus Chemical ... What's in Hydraulic Fracturing Fluid? Water and sand make up 98 to 99.5 percent of the fluid used in hydraulic fracturing. In addition, chemical additives are used. ... It also allows for the recovery of oil and natural gas from formations that geologists once believed were impossible to produce, such as tight shale formations in the areas ... 40 CFR Ch. I (7-1-13 Edition) Environmental Protection ... If, after contacting the agency, you find the material is not available, please notify the Director of the Federal Register, National Archives and Records Administration, 8601 Adelphi Road, College Park, MD 20740-6001, or call 202-741-6010. ia's Rock and Mineral Resources sand and gravel. The coal in western ia was created about 300 million years ago. ... A very small amount of coal is burned to heat homes while about 56% is used to produce electricity nationwide. ... they already know about ia's rock and mineral resources from the class discussion. ...    Read More

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