Hydraulic fracturing is the fracturing of rock by a pressurized liquid. Induced hydraulic fracturing or hydrofracturing, commonly known as fracking, is a technique in which typically water is mixed with sand and chemicals, and the mixture is injected at high pressure into a wellbore to create small fractures, along which fluids such as gas, petroleum, uranium-bearing solution, and brine water may migrate to the well.
Fracking has been in the news a lot recently, most recently with the water contamination in West Virginia. Environmental groups alleged that the spill is part of an increasingly dangerous chemical threat called “fracking” – using chemicals to mine hard rock for oil and natural gas. Investigators in West Virginia found that the released chemical (4-methylcyclohexane methanol )had traveled through the ground and into the Elk River, leaching into the water just a mile above the West Virginia American Water Company plant that supplies large parts of the region with clean water.
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