Here's an excerpt:
More than half of the 12 Ameren Missouri coal ash ponds inspected for structural integrity last year were rated "poor" by the Environmental Protection Agency, which recommended the utility take action to strengthen them.
A nationwide review of coal ash impoundments was prompted by the December 2008 Kingston, Tenn., ash spill, considered among the nation's worst environmental disasters. Summaries of the findings of the inspections were only recently made available on the EPA's website, and the agency has yet to make full reports available because Ameren claims they contain proprietary information.
Ameren doesn't dispute the EPA's findings, but did challenge the "poor" ratings assigned to one ash pond at the Sioux power plant in St. Charles County and all six active ash ponds at the Meramec plant in South St. Louis County, said Mark C. Birk, vice president of generation for the St. Louis-based utility.
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