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Paul Merrell

Friends of the Earth - 0 views

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Nukes NRC-coverup Diablo-Canyon FOE

shared by Paul Merrell on 26 Aug 14 - No Cached
  • Tell Chairman Macfarlane: Shut down Diablo Canyon! This week, the Associated Press revealed that the nuclear reactors at Diablo Canyon are surrounded by faults capable of causing an earthquake far larger than they were designed to withstand. There is no way that the NRC should allow these reactors to continue to operate given this new information. Demand that Chairman Macfarlane put peoples' safety ahead of profits and shut down Diablo Canyon!
  • Paul Merrell on 26 Aug 14
     
    Dear Chairman Macfarlane: It has come to my attention that the former Senior Resident Inspector at the Diablo Canyon Nuclear Power Plant filed a differing professional opinion with the NRC in which he recommended that the Commission shut Diablo Canyon while addressing the fact that the reactors and internal equipment are no longer correctly tested and licensed given new earthquake information that exists in regard to the Shoreline, Los Osos and San Luis Bay faults which surround the plant. It is unconscionable that the NRC has allowed Diablo Canyon to continue operating without fully analyzing seismic threats to the reactors.  It is also astonishing to me that your agency has not only failed to act on this report but has suppressed the publication of the report despite the request by the author that his paper be made public. I understand that Friends of the Earth has now petitioned the agency to close the reactors and to force Pacific Gas and Electric to undergo a public licensing review should they wish to continue to operate these reactors.  I strongly support this petition and ask that you take immediate action to comply. As a geologist, I am sure that you are aware that USGS technical staff posit that the Shoreline, Los Osos, San Luis Bay, and Hosgri faults could be connected, potentially causing larger earthquakes than Diablo Canyon was designed to withstand. According to PG&E itself, the Shoreline, Los Osos and San Luis Bay faults could all produce ground motion beyond that considered as the basis for both Diablo's license and safety evaluation. This means that the reactors and internal equipment have not been tested and certified to withstand the kind of earthquakes that we now know are possible in the area. This is unacceptable. If there were a proposal to build reactors on the Diablo Canyon site today, there is no way, knowing what we do now, that it would be accepted. Don't let what we didn't know decades ago be an excuse for keeping people an
Paul Merrell

AP Exclusive: Expert calls for Diablo Canyon shutdown | www.ktvu.com - 0 views

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Nukes NRC-coverup Diablo-Canyon

shared by Paul Merrell on 26 Aug 14 - No Cached
  • A senior federal nuclear expert is urging regulators to shut down California's last operating nuclear plant until they can determine whether the facility's twin reactors can withstand powerful shaking from any one of several nearby earthquake faults.Michael Peck, who for five years was Diablo Canyon's lead on-site inspector, says in a 42-page, confidential report that the Nuclear Regulatory Commission is not applying the safety rules it set out for the plant's operation.The document, which was obtained and verified by The Associated Press, does not say the plant itself is unsafe. Instead, according to Peck's analysis, no one knows whether the facility's key equipment can withstand strong shaking from those faults — the potential for which was realized decades after the facility was built.
  • Continuing to run the reactors, Peck writes, "challenges the presumption of nuclear safety."Peck's July 2013 filing is part of an agency review in which employees can appeal a supervisor's or agency ruling — a process that normally takes 60 to 120 days, but can be extended. The NRC, however, has not yet ruled. Spokeswoman Lara Uselding said in emails that the agency would have no comment on the document.The NRC, which oversees the nation's commercial nuclear power industry, and Diablo Canyon owner Pacific Gas and Electric Co., say the nearly three-decade-old reactors, which produce enough electricity for more than 3 million people annually, are safe and that the facility complies with its operating license, including earthquake safety standards.
  • The disaster preparedness of the world's nuclear plants came into sharp focus in 2011, when the coastal Fukushima Dai-ichi plant in Japan suffered multiple meltdowns after an earthquake and tsunami destroyed its power and cooling systems. The magnitude-9 earthquake was far larger than had been believed possible. The NRC has since directed U.S. nuclear plants to reevaluate seismic risks, and those studies are due by March 2015.The important of such an analysis came into sharp focus on Sunday when a magnitude 6.0-earthquake struck in Northern California's wine country, injuring scores of residents, knocking out power to thousands and toppling wine bottles at vineyards.
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  • What's striking about Peck's analysis is that it comes from within the NRC itself, and gives a rare look at a dispute within the agency. At issue are whether the plant's mechanical guts could survive a big jolt, and what yardsticks should be used to measure the ability of the equipment to withstand the potentially strong vibrations that could result.The conflict between Peck and his superiors stems from the 2008 discovery of the Shoreline fault, which snakes offshore about 650 yards from the reactors. A larger crack, the Hosgri fault, had been discovered in the 1970s about 3 miles away, after the plant's construction permits had been issued and work was underway. Surveys have mapped a network of other faults north and south of the reactors.According to Peck's filing, PG&E research in 2011 determined that any of three nearby faults — the Shoreline, Los Osos and San Luis Bay — is capable of producing significantly more ground motion during an earthquake than was accounted for in the design of important plant equipment. In the case of San Luis Bay, it is as much as 75 percent more.Those findings involve estimates of what's called peak ground acceleration, a measurement of how hard the earth could shake in a given location. The analysis says PG&E failed to demonstrate that the equipment would remain operable if exposed to the stronger shaking, violating its operating license.
  • The agency should shut the facility down until it is proven that piping, reactor cooling and other systems can meet higher stress levels, or approve exemptions that would allow the plant to continue to operate, according to Peck's analysis.Peck disagreed with his supervisors' decision to let the plant continue to operate without assessing the findings. Unable to resolve his concerns, Peck in 2012 filed a formal objection, calling for PG&E to be cited for violating the safety standards, according to his filing. Within weeks, the NRC said the plant was being operated safely. In 2013 he filed another objection, triggering the current review.
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