Fracking - short for "hydraulic fracturing" - involves drilling - TopicsExpress



          

Fracking - short for "hydraulic fracturing" - involves drilling deep underground and releasing a high-pressure mix of water, sand and hundreds of chemicals to crack rocks and release gas stored inside. Water companies are worried the process could contaminate drinking water aquifers that lie above shale gas reserves. Water UK said this could happen by gases such as methane permeating into water sources from rocks where it was previously confined, chemicals getting in through cracks created by the fracking process, or by poor handling of waste water on the surface.
Posted on: Sat, 20 Jul 2013 08:19:50 +0000

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