ML023610222

Level 1, Revision 3i Standardized Plant Analysis Risk (SPAR) Model for Sequoyah 1 and 2

ML023610222
Person / Time
Site:	Sequoyah
Issue date:	12/21/2002
From:	Newberry S NRC/RES/DRAA
To:	Mims W Tennessee Valley Authority
References
Download: ML023610222 (4)

Text

December 21, 2002 Mr. William Z. Mims Senior PSA Specialist Tennessee Valley Authority 1101 Market Street, LP4J-C Chattanooga, TN 37402-2801

Dear Mr. Mims:

Per your request, enclosed is a compact disk containing the Level 1, Revision 3i Standardized Plant Analysis Risk (SPAR) model for the Sequoyah 1 & 2 plants and the SAPHIRE 6.75 suite of probabilistic risk assessment (PRA) computer codes. Also enclosed is a copy of the users manual for the Sequoyah 1 & 2 SPAR model. The SAPHIRE code suite is required to perform analyses with the Revision 3i SPAR model. Both of these software packages are in the form of executable files that can be run directly from the compact disk. These items are for your organizations use only and are not to be distributed further without the consent of the NRC.

Also please note that the information contained in the SPAR model is considered sensitive and should be treated accordingly.

These software packages are provided to facilitate your participation in our onsite QA review of the SPAR model for Sequoyah 1 & 2, currently scheduled for January 2003. At that time, the Revision 3i (i denotes interim) SPAR model for Sequoyah 1 & 2 will be reviewed with your PRA staff and benchmarked against your PRA model for these units. Until this review and benchmarking have been conducted and the SPAR model revised to reflect the results of the review, the model is considered to be interim, and should be used by your staff analysts with appropriate discretion.

Questions about the model should be directed to Mr. Robert Buell of the Idaho National Engineering and Environmental Laboratory (INEEL) at (208) 526-9400 (buelrf@inel.gov) .

Questions about the SAPHIRE code suite should be directed to Mr. Ted Wood, INEEL, at (208) 526-8729 (stw@inel.gov). Comments and suggestions may also be directed to either of these gentlemen or to Dr. Patrick OReilly, NRC project manager for SPAR model development, at (301) 415-7570 (pdo@nrc.gov).

W. Mims 2 If you are interested in receiving on-going technical support for SAPHIRE, you are invited to join the SAPHIRE Users Group. Mr. John Schroeder, INEEL, at (208) 526-8755 (roe@inel.gov) can provide more details about the group and the services offered.

Due to the potential sensitivity of the information contained in the Enclosures, they are not publicly available.

Sincerely,

/RA/

Scott F. Newberry, Director Division of Risk Analysis and Applications Office of Nuclear Regulatory Research

Enclosures:

As stated cc: R. Hernan, NRR/LPD2-2 (w/o enclosures)

W. Mims 2 If you are interested in receiving on-going technical support for SAPHIRE, you are invited to join the SAPHIRE Users Group. Mr. John Schroeder, INEEL, at (208) 526-8755 (roe@inel.gov) can provide more details about the group and the services offered.

Due to the potential sensitivity of the information contained in the Enclosures, they are not publicly available.

Sincerely,

/RA/

Scott F. Newberry, Director Division of Risk Analysis and Applications Office of Nuclear Regulatory Research

Enclosures:

As stated cc: R. Hernan, NRR/LPD2-2 (w/o enclosures)

Distribution w/o enclosures:

OERAB RF PWilson, NRR (SRA)

DRAA RF CCarpenter, NRR File Center DCoe, NRR Public HBerkow, NRR JStrosnider/AThadani, RES CCasto, RGN-IV DMarksberry, RES RBernhart, RGN-II (SRA)

AHowe, NRR WRogers, RGN-II (SRA)

MJohnson, NRR NGarrett, SRI DOCUMENT NAME: A:\SEQUOYAH1&2.WPD To receive a copy of this document, indicate in the box C = Copy wo/encl E = Copy w/encl N = No copy OFFICE OERAB E OERAB E OERAB C OERAB C DRAA C NAME EGoldfeiz POReilly MCheok PBaranowsky SNewberry DATE 12/20/02 12/20/02 12/20/02 12/20/02 12/21/02 OFFICIAL RECORD COPY OAR in ADAMS (Y or N)? Y Publicly Available (Y or N)? Y Template No.: RES-006 Accession No.: ML023610222 Res File Code: 2C-3

Date 12/20/2002 ROUTING AND TRANSMITTAL SLIP TO: (Name, office symbol, room #, building, agency/post) Initials Date

1. Eli Goldfeiz - Concur - Fill in Y or N for OAR in ADAMS and Publicly EBG 12/20 Available

2. Pat OReilly - Concur PDO 12/20

3. Mike Cheok - Concur MCC 12/20

4. Pat Baranowsky - Concur MCC for 12/20 PWB

5. Scott Newberry - Signature SFN 12/21

6. Nancy - Distribute - Fill in Template Number, Accession Number and RES NLL 12/21 Code Number 7.

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Action File Note and Return Approval For Clearance Per Conversation As Requested For Correction Prepare Reply Circulate For Your Information See Me Comment Investigate X Concurrence/Signature Coordination Justify REMARKS Letter to Mr. W. Mims - Per your request, enclosed is a compact disk containing the Level 1, Revision 3i Standardized Plant Analysis Risk (SPAR) model for Sequoyah 1 & 2 and the SAPHIRE 6.75 suite of probabilistic risk assessment (PRA) computer codes. Also enclosed is a copy of the users manual for the Sequoyah 1 & 2 SPAR model.

Room # - Bldg.

FROM: (Name, org. symbol, Agency/Post)

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