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TVA may have weakened the Environmental Protection Agency's stance on regulating coal ash when it was allowed to comment before the public on the issue, a government watchdog group says.\n\nAn accidentally released internal federal document shows that the public power producer, still cleaning up from a massive coal ash spill in 2008, criticized EPA's original draft proposal, which said coal ash should be classified as a "special" waste, making it fall under hazardous waste rules.

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TVA has inked four deals to purchase wind power generated in Illinois and Kansas.

The federal utility said today that the contracts will allow it to purchase up to 815 megawatts of renewable wind energy, and will move it closer to a goal of having more than half its power generation come from non-carbon emitting sources

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A report by Duke University scientists who analyzed water and ash samples from last month’s coal sludge spill in eastern Tennessee concludes that “exposure to radium- and arsenic-containing particulates in the ash could have severe health implications” in the affected areas.

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Preliminary water tests from rivers near a huge coal ash spill in Tennessee show elevated levels of pollutants such as mercury and lead, a environmental group said on Friday.

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