ML103270373
| ML103270373 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 11/23/2010 |
| From: | Jeremy Tapp Division of Nuclear Materials Safety III |
| To: | Jim Clay Division of Nuclear Materials Safety III |
| References | |
| Download: ML103270373 (2) | |
Text
From:
Tapp, Jeremy Sent:
Tuesday, November 23, 2010 7:45 AM To:
Clay, Jim
Subject:
Zion Dry Fuel Storage Cask Requested Information for Final Hi Jim Please add this email in ADAMS. Thank you.
Jeremy From: Tapp, Jeremy Sent: Monday, November 22, 2010 4:23 PM To: 'ildunesland@aol.com'
Subject:
Zion Dry Fuel Storage Cask Requested Information Hi Paul Hope this email finds you well. I have been gathering information with regard to your question posed during the Zion Public Information Night on October 28. To recap, your question was what structural testing has been performed on the dry fuel storage casks that will be used at Zion.
The NRC requires all dry cask storage systems to resist floods, tornadoes, projectiles, temperature extremes, and other unusual scenarios. To that end, the NRC requires cask designers to submit a Safety Analysis Report documenting that the NRC criteria for a robust cask design are met. The NRC conducts a technical review of this report to ensure that the design is, indeed, safe for a broad range of scenarios.
To fully address your question, Im passing along where the NRC is in its licensing review of the Zion storage casks - ZionSolutions (the current license holder and responsible entity for the Zion Nuclear Power Station) has contracted with NAC International to use their newest dry cask storage design, the MAGNASTOR cask. The NRC has reviewed and approved the MAGNASTOR design and issued a Certificate of Compliance, essentially approving the cask for use. However, NAC International has submitted an amendment to include a broader scope of fuel characteristics. ZionSolutions needs to wait for this amendment to be approved by the NRC to use the MAGNASTOR cask because of the characteristics of the fuel at Zion. The NRC has not yet completed its review of the most recent structural evaluation and amendment request. It will be at least a year before this review is complete.
What I am passing along is the structural design and analysis information submitted to the NRC in the new amendment referenced above, which is currently being reviewed by the NRC.
Therefore, these documents have the potential to change due to questions the NRC poses as part of the review and approval process, which, like stated above, will be at least a year before being complete. These documents are too large to attach to an email. Please use our electronic document database, ADAMS, to access the documents:
Once you pull up that web page, click on the Simple Search tab and in the search box type the reference numbers below to access those documents.
- 2) NAC MAGNASTOR FSAR Chapters 5 through 13 is reference # ML102420570 To help you find the information I believe youre looking for in the above references, please look at the NAC MAGNASTOR FSAR Chapter 3, Section 3.7.3, titled Concrete Cask Evaluation for Storage Accident Events on page 3.7-67. Also, please look at FSAR Chapter 12, titled Accident Analyses.
Second, to address your specific concern related to aircraft impacts to the dry fuel storage cask
- the NRC has implemented a wide range of security enhancements to nuclear power plants and continues to assess possible risks and vulnerabilities, including a Security Assessment of dry cask storage. This assessment consisted of independent analyses that have concluded that the current regulations and requirements for the design of dry cask storage system to are adequate to protect the public. These analyses are not publicly available due to the sensitive security related information they contain so I cannot offer you any more detail.
Feel free to contact me for the status on the NRC review of NAC MAGNASTOR amendment or any other questions you may have.
Also, if you cannot reach me, please contact one of our Public Affairs Officers and they will be able to assist you in my absence. Their contact information is below.
Vika Mitlyng 630-829-9662 Prema Chandrathil 630-829-9663 Thank you.
Jeremy Tapp US NRC, Region III 630-829-9862