EPA coal ash impoundment plans released

The U.S. Environmental Protection Agency (EPA) released plans developed by 20 electric utilities with 70 coal ash impoundments that describe how the facilities will make their impoundments safer. The plans are in response to EPA’s final assessment reports on the structural integrity of these impoundments, which the agency made public in May 2010.

In addition to the plans, EPA released assessment structural integrity reports of an additional 38 coal ash impoundments at 17 facilities. Of these units, nine received a “poor” rating. EPA said the poor rating was not because the impoundments are unsafe, but because they lack engineering documentation. None received an “unsatisfactory” rating.

Since May 2009, EPA has been conducting on-site structural integrity assessments of coal ash impoundments and ponds at electric utilities.

An impoundment holding disposed coal ash waste generated by the Tennessee Valley Authority failed in 2008, creating a spill in Kingston, Tenn. that released more than 5 million cubic yards of coal ash. Shortly afterwards, EPA began overseeing the cleanup, as well as investigating the structural integrity of coal ash storage impoundments.

The assessment reports were completed by firms under contract to EPA that are expert in the field of dam integrity and reflect the best professional judgment of those engineering firms.

Read more operations and maintenance news

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Whitepapers

Logistics Risk Management in the Transformer Industry

Transformers often are shipped thousands of miles, involving multiple handoffs,and more than a do...

Secrets of Barco UniSee Mount Revealed

Last year Barco introduced UniSee, a revolutionary large-scale visualization platform designed to...

The Time is Right for Optimum Reliability: Capital-Intensive Industries and Asset Performance Management

Imagine a plant that is no longer at risk of a random shutdown. Imagine not worrying about losing...

Going Digital: The New Normal in Oil & Gas

In this whitepaper you will learn how Keystone Engineering, ONGC, and Saipem are using software t...