PITTSBURGH - A landmark federal study on hydraulic fracturing shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water aquifers at a western ...
The US Environmental Protection Agency asked nine service companies to voluntarily supply information about chemicals in their hydraulic fracturing fluids for its study of the completion process's ...
The US Environmental Protection Agency subpoenaed Halliburton Co. on Nov. 9 as eight other hydraulic fracturing fluid suppliers voluntarily provided information about their products' ingredients for ...
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