Fracking Study Spurs Call for Rules to Leakproof U.S. Gas Wells
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A study that blamed natural gas drilling for water pollution in two states has spurred calls for stricter regulations to keep wells from leaking methane into aquifers.
The study backed the oil and gas industry in one respect: It discounted hydraulic fracturing, or fracking, as the source for harmful methane in water. Some environmentalists contend that by blasting rock with a mixture of water, chemicals and sand, producers can force the gas into drinking water near the surface.