The findings of an Environmental Protection Agency report that potentially links hydraulic fracturing to groundwater pollution in Wyoming are only preliminary and need further review, Interior Secretary Ken Salazar said. "I think it's important that the real facts finally get to the table with respect to the peer review and seeing whether there's something specific with respect to that basin that is different from what we have across the country," he said. The drilling method "can be done and is being done safely," Salazar added.

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