ML20151B018

Forwards Proprietary Draft SER Re PRA for Westinghouse RESAR SP/90.Open Issues Noted Which May or May Not Be Resolvable During Preliminary Design Approval Stage of Review.Draft SER Withheld (Ref 10CFR2.790)

ML20151B018
Person / Time
Site:	05000601
Issue date:	03/21/1988
From:	Rubenstein L Office of Nuclear Reactor Regulation
To:	Johnson W WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
Shared Package
ML19302D410	List: ML20151B018
References
NUDOCS 8804080015
Download: ML20151B018 (3)

Text

e March 21, 1988 Docket No. 50-601 DISTRIBUTION w/ enclosure:

Mr. W. J. Johnson Docket File FMiraglia Nuclear Safety Departirent NRC PDR LRubenstein Westinghouse Electric Corporation PDSNP Rdg HVandermolen Water Reactor Divir'on EHylton EChelliah Box 355 LShao TKenyon Pittsburgh, Pennsylvania 15?30 EShomaker, OGC JMurphy THurley JSniczek

Dear Mr. Johnson:

OGC-Rockville RBarrett

SUBJECT:

DRAFT SAFETY EVALUATION REPORT REGARDING THE PSS FOR RESAR SP/90 As part of our review of the PDA application for RESAR SP/90, the staff, eith the assistance of BNL, has been reviewing Module 16, "Probabilistic Safety Study", of the PDA application. Enclosed is a copy of the staff's Draft Safety Evaluation Report (DSER) on the "front-end" portion of the PRA which documents the results of our review to date.

Based on this preliminary review, the staff has concluded that there are open issues that, due to the stage of the design, may or may not be resolvable during the PDA stage of review. These issues are discussed in detail in the attached report (see page 6 and Table 3 of the report). We propose a meeting be set up between the NRC, our contractor (BNL) and your staff to discuss these issues in order to resolve then, where able, prior to issuance of the Final SER.

Note the Final SER regarding this matte- may be changed after the staff has evaluated input from Westingheuse in response to the enclosed documcnt.

The DSER has been written utilizing information that has been determined to be prcprietary, and, therefore, has been withheld from public disclosure pursuant to 10 CFR 2.790. We request you review the enclosure for information that might be censidered prcprietary by your corporation, ard notify the staff of the results of your review within five working days from the date of issuance of this letter. The staff will withhold this enclosure from public disclosure until this review period has expired, at which tire the staff will release the DSER to the NRC Public Document Room (PDR) (unless requested otherwise by your staff). If ycu have any questions regarding this matter, please contact the Project Manager, T. J. Kenyon, at (301) 492-1120.

Sincerely, original signed by Lester S. Rubenstein, Director e8040e00150%f,ot Standardization and Non-Power PDR ADOcK O PDR Reactor Project Directerate P Division of Reactor Projects - III, IV, y and Special Projects Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See next page

• See Previous Ccncurrence f

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, Dc k'et No. 50-601 Mr. W. J. Johnson Nuclear Safety Department Westinghouse Electric Corporation Water Reactor Division Box 355 Pittsburgh, Pennsylvania 15230

Dear Mr. Johnson:

i

SUBJECT:

DRAFT SAFETv EVALUATION REFORT REGARDING THE PSS FOR RESAR SP/90 As part of our review of the PDA application for RESAR SP/90, the staff, with the assistance of BNL, has been reviewing Module 16 "Probabilistic Safety ,

Study", of the PDA application. Enclosed is a copy of t:,e staff's Draft Safety 1 Evaluation Report (DSER) on the "front-end" portion of the PRA which documents the results of our review to date.

Based on this preliminary review, the staff has concluded that there are open issues that, due to the stage of the design, may or may not be resolvable during the PDA stage of review. These issuer, are discussed in detail in the attached report (see page 6 and Table 3 of the report). We propose a meeting be set up between the NRC, our contractor (BNL) and your staff to discuss these issues in order to resolve then, where able, prior to issuance of the Final SER.

Note the Final SER regarding this matter may be changed after the staff has evaluated input from Westinghouse in response to the enclosed document.

The DSER has been written utilizing information that has been determined to be proprietary, and, therefore, has been withheld fr: public disclosure pursuant to 10 CFR 2.790. We request you review the enclosure for information that night be considered proprietary by your corporation, and notify the staff of the results of your review within five working days from the date of issuance .

of this letter. The staff will withhold this enclosure from public disclosure l until this review period has expired, at which time the staff will release the l DSER to the FRC Pubite Docunent Room (PDR) (unless requested otherwise by your staff). If you have any questions regarding this matter, please contact the i Project Manager, T. J. Kenyon, at (301) 492-1120. j Sincerely, i f s. l Lester S. Rubenstein, Director  ;

Standardization and Non-Powrr '

Reactor Project Directorate  !'

Division of Reactor Projects - !!!, IV, V and Special Projects Office of Nuclear Reactor Regulation  ;

Enclosure:

As stated l

cc: See next page

4

. Docket No. STN 50-601  :

RESAR-SP/90 cc:

Trever Pratt Brookhaven National Laboratory Building 130 Upton, New York 11973  ;

Mr. William Schivley  !

Westinghouse Electric Corporation  !

ECE-410  ;

Mail Stop 4-08 '

Box 355 ,

Pittsburgh, Pennsylvania 15230 l