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Reassessment Of Impoundments

In the interest of taking a conservative, self-critical approach to ensuring the safety of TVA’s storage impoundments across the system, TVA has done a preliminarily reassessment of the potential hazard classifications of the impoundments at each of its 11 fossil plants and the now-closed Watts Bar plant.

The classifications do not measure the structural integrity of the facility or the possibility of whether a failure could occur. They are designed to identify where loss of life or significant economic or environmental damage could occur in the event of a failure.

For more information, please use the links below:

Fact Sheet

EPA Certification Form

July 16, 2009 Transmittal Letter to EPA

October 22, 2010 Letter to EPA

October 27, 2011 Letter to EPA

Hazard Potential Listing


Page updated November 16, 2011 11:35 AM



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