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The following story originally appeared in NEI’s Nuclear Energy Overview.

The NRC has endorsed the industry guidance on flooding and seismic walkdowns developed in response to recommendations from the post-Fukushima task force but asked for two changes in in the guidance on flooding.
In a May 31 letter, the agency said that the guidance documents are “responsive” to a request for information issued March 12 on flooding and seismic walkdowns and other issues.
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The following story originally appeared in NEI’s Nuclear Energy Overview.

The tsunami that brought about the nuclear accident at Japan’s Fukushima Daiichi facility was not adequately accounted for in the facility’s design basis, said a co-author of a report for the American Nuclear Society.

Michael Corradini, co-chair of the ANS’ special committee on Fukushima, told the National Academy of Sciences this week that the March 11, 2011, tsunami that disabled the nuclear power plant was not entirely unforeseen, because larger tsunamis have occurred in that region of Japan in recorded history.
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The following story originally appeared in NEI’s Nuclear Energy Overview.

The nuclear energy industry continues to make progress on developing guidance for implementing the highest-priority recommendations from the NRC’s Fukushima task force.

The NRC meanwhile is preparing to send approved guidance back to the industry.
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WASHINGTON, D.C., April 16, 2012—Bolstering the ability of U.S. nuclear energy facilities to respond safely to extreme events, the industry has met its March 31 deadline for ordering additional on-site portable equipment to be used in emergencies. The equipment would be used if other systems that comprise a facility’s multi-layered safety strategy are compromised. The additional equipment—some of which already has been positioned at plant sites—is a key element of the industry’s FLEX strategy developed in response to Japan’s Fukushima Daiichi accident in March 2011.

This equipment is part of a commitment by all U.S. companies operating nuclear energy facilities to begin implementing the “flexible and diverse” (FLEX) response strategy by ordering or entering into contract for a plant-specific list of emergency equipment. Each nuclear power plant has multiple safety systems designed specifically for that facility. This initiative provides an additional layer of safety as part of a nuclear power plant’s response capability to extreme natural events.

Every company met the deadline, said Tony Pietrangelo, the Nuclear Energy Institute’s senior vice president and chief nuclear officer. Equipment that has been acquired or ordered includes: diesel-driven pumps, air-driven pumps for flood equipment, sump pumps, hoses, electric generators, battery chargers, electrical switchgear, fittings, cables, fire trucks and satellite communications gear. It also includes support materials for emergency responders.

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Later today, U.S. Nuclear Regulator Commission Chairman Gregory Jaczko will be taking a tour of San Onofre Nuclear Generating Station. While there, he’ll be updated on the progress of the investigation into leaks found in tubes in the steam generators inside Units 2 and 3.

Overnight, Southern California Edison (SCE) posted a video message from President Ron Litzinger on the progress of the investigation, repeating that the plant won’t be restarted until repairs are complete and the safety of the public and the plants workers can be guaranteed.

For more information on the situation at San Onofre, please visit SongsCommunity.com.

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