ML073310572

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Email from Dale M. Vincent to Mahesh Chawla Gothic SE Clarification
ML073310572
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 10/30/2007
From: Vincent D
Nuclear Management Co
To: Mahesh Chawla
NRC/NRR/ADRO/DORL/LPLIII-1
Chawla, ML, NRR/DLPM/LPD III-2, 415-8371
References
Download: ML073310572 (2)


Text

From: "Vincent, Dale M." <Dale.Vincent@nmcco.com>

To: "Chawla, Mahesh" <mlc@nrc.gov>

Date: 10/30/2007 12:21:50 PM

Subject:

GOTHIC SE clarification

Mac, On September 1, 2004, the Nuclear Management Company (NMC) submitted a license amendment request (LAR) requesting approval to use the GOTHIC methodology for Prairie Island Nuclear Generating Plant (PINGP) analyses (Accession No. ML042570289). The NRC approved the LAR by a safety evaluation (SE) dated August 12, 2005 (Accession No. ML052000046).

However the SE included the following ambiguous statement which could be interpreted to always require submittal of an LAR for each use (application) of GOTHIC:

The mass and energy releases and the initial and boundary conditions used in future PINGP license applications using GOTHIC 7 will be reviewed by the staff to assure that the analyses are performed consistent with the guidance in the SRPs and the description presented in WCAP-16219-P.

Requiring an LAR for each use would not be consistent with the industry use of approved topical reports, such as WCAP-16219-P, and precludes the use of 10 CFR 50.59 for determining whether NRC pre-approval is required.

NMC requests that the NRC withdraw this SE statement or provide clarification.

Mail Envelope Properties (47275A0F.9B2 : 3 : 10674)

Subject:

GOTHIC SE clarification Creation Date 10/30/2007 12:21:22 PM From: "Vincent, Dale M." <Dale.Vincent@nmcco.com>

Created By: Dale.Vincent@nmcco.com Recipients nrc.gov OWGWPO03.HQGWDO01 MLC (Mahesh Chawla)

Post Office Route OWGWPO03.HQGWDO01 nrc.gov Files Size Date & Time MESSAGE 1121 10/30/2007 12:21:22 PM TEXT.htm 4084 Mime.822 6931

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