ML072530020

2007/08/30 Pilgrim Renewal Hearing - Clarification of Entergy Pilgrim Letter Dated 8/23/07

ML072530020
Person / Time
Site:	Pilgrim
Issue date:	08/30/2007
From:	- No Known Affiliation
To:	Office of Nuclear Reactor Regulation
References
06-848-02-LR
Download: ML072530020 (2)

Text

From: "Sanchez, Edward" <esanch1@entergy.com>

To: "Perry Buckberg" <PHB1@nrc.gov> Date: 8/30/2007 11:59:46 AM

Subject:

Clarification of Entergy Pilgrim letter dated 8/23/07

Perry, As a follow-up to the conference ca ll on 8/30/07 between Entergy and the NRC, the following information is provided to clarify information in our

letter dated 8/23/07 regarding Pilgrim's reactor vessel neutron fluence action plan. The action plan contains a number of potential success paths. Entergy currently believes that one of the following two

approaches in the action plan, pursued in parallel, will be successful. First, an EPRI sponsored BWR-3 is currently being modeled using the RAMA

code. It is antici pated that the fluence re sults from the EPRI sponsored plant will provide the successful benchmark required by Regulatory Guide 1.190 for the BWR-3 design eliminating the need for a Pilgrim specific benchmark. In par allel to that effort, Entergy is working to obtain precise measurements of an existing capsule location in the Pilgrim reactor vessel and plans to remove that capsule in the spring 2009 refueling outage for use in developing a new fluence calculation benchmark. Entergy curr ently believes that one of these two approaches will be successful in meet ing the Regulatory Guide 1.190 benchmark requirements fo r the BWR-3 design.

Regards, Ed Sanchez Pilgrim Licensing Hearing Identifier: PilgrimRenewalNonPublic Email Number: 19 Mail Envelope Properties (46E50483.HQGWDO01.TWGWPO03.200.2000000.1.1407E0.1)

Subject:

Clarification of Entergy Pilgrim letter dated 8/23/07 Creation Date: 8/30/2007 11:59:46 AM From: "Sanchez, Edward" <esanch1@entergy.com>

Created By: esanch1@entergy.com

Recipients "Perry Buckberg" <PHB1@nrc.gov>

Post Office Route TWGWPO03.HQGWDO01 nrc.gov

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