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Dry Cask Storage
Frequently Asked Questions
| Question |
Answer |
| Security |
|
| Will there be increased security at the
ISFSI? |
Yes, the ISFSI will be included in the Protected
Area. It will be continuously monitored (24/7/365),
including the use of close circuit TV, and microwave
intrusion detection systems. |
| Please summarize other security precautions
to be taken at the ISFSI. |
The nuclear energy industry has always had the highest
security standards of any American industry. The industry
is required to meet Nuclear Regulatory Commission regulations
for security and exceeds these requirements in many
areas. IPEC has well-armed and highly trained security
forces that are routinely drilled and tested. Since
Sept. 11, 2001, security has been significantly strengthened.
Access to the plants has been tightened and security
officers search all entering vehicles and people. All
workers entering plant operating areas must also pass
through sensitive metal and explosive detection equipment.
Additional vehicle barrier systems have been installed
to protect against vehicle bombs. IPEC Security coordinates
with the Department of Homeland Security and intelligence
agencies on the assessment of potential threats and
the specific actions by industry security forces in
the event of a credible threat. IPEC also has emergency
response procedures and contingency plans in the event
of a plant accident or terrorist event. These procedures,
reviewed and improved following Sept. 11, are evaluated
every two years during extensive drills involving plant
personnel, local police, fire and emergency management
organizations. NRC and Federal Emergency Management
Agency expert teams evaluate these drills.
|
| Why would Entergy not bury the casks or
put them in silos, as opposed to leaving them above ground? |
The Hi-Storm structure is a hardened structure with
over two feet of concrete surrounding a stainless steel
canister. The casks need to be free standing to radiate
heat and take advantage of a passive cooling system
which does not need to rely on power sources as an active
cooling system would. Another advantage of the Hi Storm
design is that the casks remain in full view at all
times. |
| Could a bomb be used to blow up a cask? |
Given the many layers of security involved, it is
highly unlikely that a terrorist would have access to
perpetrate this kind of act. However, this scenario
has received considerable attention and analysis, in
the event that multiple security barriers failed simultaneously.
For example, Sandia National Laboratory subjected a
container to a device 30 times more powerful than a
typical anti-tank weapon. The result left the inner
container intact and left a ¼” hole in
the outer cylinder. The NRC determined that a large-scale
release of radioactivity would be prevented. (www.nei.org/documents/SafeShipBrochure1.pdf
)
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Overview
Concrete
ISFSI Pad
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water control
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