- WEB EXCLUSIVE
- PE COFFEEHAUS
In the release, the agency noted it is conducting on-site assessments of the coal ash impoundments and ponds at electric utilities. The EPA said by the end of 2009, it will have assessed all of the units that have a dam hazard potential rating of "high" or "significant" in the responses provided by electric utilities to the information request.
The hazard potential rating refers to the potential for loss of life or damage if there is a dam failure. The ratings do not refer to the structural stability of the dam, according to the agency. Dams assigned the high hazard potential rating are those where failure or misoperation will probably cause loss of human life; dams assigned a significant hazard potential rating are those where failure will not probably cause loss of human life but can cause economic loss, environmental damage, or damage to infrastructure (for example, roads and bridges). The results of this effort will be posted on the EPA’s website as final reports are completed.