Feeds:
Posts
Comments

Archive for May 11th, 2011

2010 Performance Assessment of South Texas Project Nuclear Power Plant

Posted in Global Warming, tagged , , , , on May 11, 2011 |

NRC WILL HOLD A PUBLIC MEETING TO DISCUSS 2010 PERFORMANCE ASSESSMENT OF SOUTH TEXAS PROJECT NUCLEAR POWER PLANT

STP Houston and Corpus ChristiMost of us are familiar with the 10 and 50 mile zones around Fukushima, this map shows those same zones around the South Texas nuclear plant located just 76 miles outside of Houston.

The Nuclear Regulatory Commission staff will meet in Bay City, Texas, on Thursday, May 19, with representatives of South Texas Project (STP) Nuclear Operating Co., to discuss the agency’s assessment of safety performance for the South Texas Project nuclear power plant located near Bay City.

The meeting, which will be open to the public, is scheduled to begin at 5:30 p.m. at the Wharton County Junior College (Center for Energy Development) 4000 Avenue F, Bay City, Texas.

In addition to the performance assessment, the NRC staff will be available to answer questions from the public on the safety performance of the South Texas (Nuclear) Project and the NRC’s role in ensuring safe plant operation.

The meeting will provide an opportunity for NRC to discuss their annual assessment of the plant with the company, local officials and the public.   NRC will answer any questions attendees may have about their oversight.

A letter sent from the NRC Region IV office to plant officials addresses the performance of the plant during 2010 and will serve as the basis for discussion. It is available on the NRC website – click here to read the letter.

In light of public concerns that have emerged regarding the safety of nuclear plants here in the U.S. in the wake of the Japanese nuclear disaster at Fukushima, this public meeting provides an excellent opportunity for citizens living 10, 50, or even 150 miles away to find out what measures are in place at South Texas Project to protect it’s neighbors.

Related Articles

Read Full Post »

Problem at US nuclear plant deemed of “high safety significance”

Posted in Nuclear, tagged , , , , , on May 11, 2011 |

In a memo issued today, the U. S. Nuclear Regulatory Commission (NRC) said that the failure of a low pressure coolant injection valve last fall at the Browns Ferry nuclear plant, located near Athens in north Alabama, was of “high safety significance”

NRC inspection findings are evaluated using a safety significance scale with four levels, ranging from “green” for minor significance, through “white” and “yellow” to “red” for high significance. On Oct. 23, 2010, a valve failed to open when operators attempted to use a shutdown cooling loop during refueling. Tennessee Valley Authority (TVA), the plant operator, later determined that the last time the valve had definitely worked as required was on March 12, 2009 when the loop was placed in service. At the time, the public was not endangered because no actual event occurred. However, the system is counted on for core cooling during certain accident scenarios and the valve failure left it inoperable, which potentially could have led to core damage had an accident involving a series of unlikely events occurred.

An accident such as the one that occurred on April 27th when the town of Tuscaloosa, Alabama, only 100 miles south of the Browns Ferry nuclear plant, was devastated by an estimated EF-4 tornado over a mile wide that stayed on the ground for 2 hours, leaving behind a shocking landscape of twisted wreckage for seven miles.  That same storm cell took out transmission lines to the plant causing it to lose offsite power and triggering the three units at the plant to shut down automatically.

A regulatory conference to discuss the issue was held on April 4, just weeks before the massive tornado cell swept through the southeast. TVA stated that the failed valve was the result of defective manufacturing but still would have opened and supplied the necessary cooling water. The NRC review disagreed and concluded the violation was “red” or of “high safety significance.” The valve was repaired after its failure was discovered last October and prior to returning the unit to service, however the NRC has determined that significant problems involving key safety systems warrant more extensive NRC inspection and oversight. 

Had the problem not been discovered and repaired six months before the the tornados shut down the plant, would the outcome have been different?  More Fukashima-like?  The increased scrutiny of the nation’s aging nuclear industry, due in large part to the disaster in Japan, is uncovering some disquieting issues.  Will the NRC’s return to being a regulatory agency instead of a shill for the industry, and their heightened oversight prevent another nuclear disaster – or is it only a matter of time before an undetected problem at a plant, coupled with unforeseen events, has the US coping with its own disaster?

Read Full Post »