Source: National Review online
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That was my chief observation when I returned to Anadarko Petroleum’s Landon Pad A, a natural-gas site in Lycoming County, PA. October’s quietude was totally unlike the cyclone of equipment, personnel and activity that had dominated this spot just four months before, when Anadarko and the American Petroleum Institute hosted journalists and policy analysts here.
Back then, engineers used a pressurized blend of 90% water, 9.5% sand, and 0.5% chemicals to crack subterranean shale deposits and awaken natural gas that has slumbered since the dinosaurs died. This hydraulic fracturing, or “fracking,” occurs some 6,000 feet underground. This is 5,000 feet beneath the water table – deep enough to bury three Empire State Buildings. (more…)