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Hydraulic fracking is the process of injecting water, chemicals and sand into a well under so much pressure that it causes thousands of small cracks in the surrounding rock up to about 150 yards from the well bore. This process has been extremely successful in increasing the production of natural gas and other wells,
However, unregulated fracking, such as has been occurring in Texas, threatens to deplete local water supplies and introduce toxic substances like arsenic into the aquifer. Although natural gas is clean to burn and not as bad for the atmosphere as coal, fracking wells in this way can offset its benefits.
Some thirty towns in Texas may see their groundwater used up by fracking practices. At this point, however, the Texas legislature has no plans to change direction.