EPA Seeks to Identify Chemicals Used in Gas Fracturing
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Federal regulators asked companies including Halliburton Co. to disclose chemicals used to dislodge underground natural gas after residents in two states where the practice is widespread were warned not to drink well water.
The U.S. Environmental Protection Agency asked nine oil- service companies to identify chemicals they employ in hydraulic fracturing for a study on potential threats to drinking water, the agency said yesterday in a statement. In fracturing, millions of gallons of chemically treated water are forced into underground wells to break up rock and allow gas to flow.