ML042670375

E-mail from M. Webb to K. King Spent Fuel Storage at Indian Point 1

ML042670375
Person / Time
Site:	Indian Point
Issue date:	03/26/2004
From:	Michael Webb NRC/NRR/DLPM/LPD4
To:	Entergy Operations
Webb M, NRR/DLPM, 415-1347
Shared Package
ML043570180	List: ML042670312 ML042670319 ML042670327 ML042670335 ML042670338 ML042670341 ML042670344 ML042670370 ML042670371 ML042670375 ML042670381 ML042670384 ML042670389 ML042670395 ML042670485 ML042670489 ML043570163
References
Download: ML042670375 (2)

Text

I Michael Webb - Re: Spent Fuel Storage at Indian Point 1 'Page i 1 TIQ&MtAJ A,OA17-I From: , Michael Webb Ma - 0Q3 To: internet:kkingsltentergy.com Date: 3/26/04 11:36AM Pr aJec /k 4d7fr Age el

Subject:

Re: Spent Fuel Storage at Indian Point 1 Vltt2L Kevin, For your consideration, I received the following additional comments regarding Unit 1 spent fuel storage.

Regards, Mike Webb NRR Project Manager for Indian Point 1

>>> 03/25/04 3:17PM >>>

Without doing a lot of research, I would have the following issues with the proposal:

Indian Point 1 is a Part 50 licensee, and the General Design Criteria are written for wet storage. What design requirements would apply to dry storage other than Part 72? Part 72 requires confinement, shielding, cooling, and retrievability - all of which are satisfied at least in part by water for pool storage configurations.

Confinement - water captures potential radioactive releases from the fuel.

Shielding - Part 20 requirements to maintain occupational exposure ALARA; it's hard to argue that water shielding is not reasonably achievable in a pool.

Cooling - air cooling likely okay for 30 year old fuel, but water is more effective.

Retrievability - long-term exposure to oxidation in an air environment may threaten the integrity of the cladding; this is part of the reason dry casks are filled with inert gases.

In addition, Zirconium alloy cladding is flammable in air at high enough temperatures. This would be an NSIR issue if cooling under credible accident conditions remained acceptable, but it would be difficult to justify even the threat of low level releases from old fuel.

>>> 03/24/04 03:22PM>>>

With respect to the proposal to drain the IP-1 spent fuel pool and allow dry storage of the fuel assemblies in the spent fuel pool, we think that the current licensing basis for the facility would govem what the licensee plans to do. They would need to look to the FSAR which would describe the design and operation of the spent fuel pool and to the license. What they plan to do may require a license amendment if a license condition or tech spec is involved or an analysis under 50.59. I'm told that the regulations that govern fuel are 50.68 and GDC 61 and 62. If these are implicated, an exemption may be required.

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Re: Spent Fuel Storage at Indian Point 1 Creation Date: 3/18/04 8:51AM From: Michael Webb Created By: MKW@nrc.gov Recipients Action Date & Time entergy.com Transferred 03/18/04 08:51AM kkingsl (intemet:kkingsl @entervy.com)

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