Saturday, January 3, 2015

Pilgrim to move spent fuel into dry casks



Pilgrim Nuclear is the same age, same design as FUKUSHIMA.



There is NO EVACUATION PLAN!





Pilgrim to move spent fuel into dry casks

Three casks to be loaded by end of January onto a concrete pad 25 feet above sea level







Nuclear plant operators in Plymouth plan to begin moving spent fuel into dry cask storage, part of a new campaign that officials say is needed to maintain room in spent fuel pools, conduct refueling operations, and continue safely generating electricity for the region.

Entergy Corporation, which runs the Pilgrim Nuclear Power Station, said Friday that its plans had been approved and would be monitored by the federal Nuclear Regulatory Commission.

Plans call for three casks to be loaded at Pilgrim as part of a process that officials expect to be completed by the end of January.

According to plans, the casks will be kept within a "highly secure fenced in area in specialized containers placed on a concrete pad located 25 feet above sea level."

Entergy said the casks are "tested under rigorous engineering and safety criteria" and are designed "to withstand a variety of extreme scenarios, ranging from tornadoes, accidents and severe weather, to earthquakes and terrorist attacks."
Entergy called dry cask storage a "reliable and safe method for storing spent fuel using large, airtight steel and concrete canisters that provide structural strength and radiation shielding."

According to Entergy, more than 500 dry casks are in use in the U.S. Loaded casks weigh 360,000 pounds and each cask is 18 feet tall and 11 feet wide, see example of other installations on the right.

Below is an illustration of the dry casks from the NRC website.




 



Pilgrim plant owner to begin moving radioactive fuel rods


 

A team of 50 to 60 radiation technicians, carpenters and laborers is ready to begin moving 204 radioactive spent fuel rod assemblies out of a pool on top of the Pilgrim Nuclear Power Station's reactor building and into three massive, concrete casks.





By Christine Legere
clegere@capecodonline.com

Posted Jan. 3, 2015 @ 3:00 am
 


PLYMOUTH — Entergy Corp. announced Friday that a team of 50 to 60 radiation technicians, carpenters and laborers is ready to begin moving 204 radioactive spent fuel rod assemblies out of a pool on top of the Pilgrim Nuclear Power Station's reactor building and into three massive, concrete casks.

The casks, 18 feet tall, 11 feet wide and weighing 360,000 pounds each, will then be relayed via a rail to an outdoor pad 25 feet above sea level.

The two-week procedure, estimated to cost the company $4 million, will provide enough room in the spent fuel pool at Pilgrim for the scheduled refueling of the reactor this spring. The pool currently contains about 3,300 spent fuel rod assemblies collected in the last 42 years.

David Noyes, the power plant's regulatory and performance director, described the loading process, saying a "multi-purpose canister" enclosed in a transfer cask will be lowered to the bottom of the spent fuel pool and loaded with 68 assemblies. Then the canister and cask are lifted and placed on the refueling floor, where a lid is secured. "The water is drained from the canister and replaced by helium," Noyes said. The transfer cask is then lowered from the roof, which is 117 feet above sea level, by a giant crane capable of holding 200 tons. The transfer cask is set on top of the final dry cask, and the multipurpose canister drops into the permanent cask, which is sealed.

Some radiation leakage is associated with the process, Noyes said. "Spent fuel has radiation associated with it," he said. "As the cask is lifted, it raises radiation levels on the refueling floor, but it's still within acceptable limits. There is no appreciable change in the radiation level at the site boundary."

All three casks are expected to be filled, sealed and in place on the outdoor pad by the end of the month. The total cost of the preparation work for the casks along with the coming transfer is $65 million, according to Entergy spokeswoman Lauren Burm.

Although there is a consensus that dry cask storage is safer than storage in fuel pools on top of the reactor building, the location of the dry cask storage pad at Pilgrim has been the subject of a local appeal by concerned residents, followed by a land court case. Plymouth's inspectional services department had allowed Entergy to do all the preparatory work for the casks without any review, saying the original permit granted to the utility covered the work.

Residents and area environmental groups appealed the decision to the town's zoning board, which upheld it. The residents then took the suit to land court, where it is pending.

Noyes said the court allowed Entergy to proceed with the dry cask transfer even though the case is not yet settled.

Pine duBois, executive director of the Jones River Watershed Association, has been a vocal opponent to the pad's location. "I think it's foolhardy that it's so close to the coast and exposed to the elements," duBois said Friday. "We think there's a high potential for damage to the environment and to the population if they store their waste there."

DuBois said she also was concerned about the transfer of the radioactive fuel rods to the casks. "I certainly don't have a level of confidence they're going to carry it off in a safe and secure manner and that it's being stored in a safe and secure manner."

Diane Turco, founder of the anti-Pilgrim watchdog group known as Cape Downwinders, said Entergy is only moving the rods to dry casks so it can keep operating. "This has nothing to do with safety; it has to do with profit," Turco said. "It's outrageous."




http://www.capecodtimes.com/article/20150103/NEWS/150109843/101015/NEWSLETTER100






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