ML20197G554

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Responds to Re Containment Isolation Requirements for post-LOCA Hydrogen Recombiner Lines.Srp Section 6.2.4 Will Be Rewritten to Clarify Basis for Not Requiring Redundant Isolation Valves in Lines Penetrating Containment
ML20197G554
Person / Time
Issue date: 05/31/1984
From: Harold Denton
Office of Nuclear Reactor Regulation
To: Helwig D
BWR OWNERS GROUP, PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
NUDOCS 8406150317
Download: ML20197G554 (2)


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May 31,1984 i

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Mr. D. R. Helwig, Chairman BWR Owners Group t

c/o Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101

Dear Mr. Helwig:

m This is in response to your letter of February 27, 1984, on the subject of " Containment Isolation Requirements for Post-LOCA Hydrogen Recombiner Lines."L In your letter, you stated that the NRC rejected the applicant's appeal and you requested that the NRC's Consnittee for the Review of Generic Requirements (CRGR) consider the merits of the staff's position.

Based on sty review of Section 6.2.4 of the Standard Review Plan, I find that its bases for not requiring redundant isolation valves in lines that penetrate the containment boundary are not very well written. There-fore, I will be directing nty staff to prepare an amendment to Section 6.2.4 of the Standard Review Plan to correct this situation under an established office procedure for this action. Among other things, this procedure calls for a consideration of all proposed changes to the Stand-ard Review Plan.by the CRGR.

With respect to your statement that the NRC had rejected the applicant's appeal I note that the appeal was held at the Assistant Director level.

l Please note that the applicant may request an appeal to higher levels of

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NRC management, if the applicant believes such a request to be warranted.

incerely, y

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H. R. Denton, Director V

Office of Nuclear Reactor Regulation l

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j May 31,1984 Mr. D. R. Helwig, Chairman BWR Owners Gmup c/o Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 i

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Dear Mr. Helwig:

This is in response to your letter of February 27, 1984, on the subject of " Containment Isolation Requirements for Post-LOCA Hydrogen Recombiner Lines."L In your letter, you stated that the NRC rejected the applicant's i

appeal and you requested that the NRC's Comittee for the Review of Generic Requirements (CRGR) consider the merits of the staff's position.

Based on ny review of Section 6.2.4 of the Standard Review Plan, I find i

that its bases for not requiring redundant isolation valves in lines that penetrate the containment boundary are not very well written. There-fore, I will be directing my staff to prepare an amendment to Section 6.2.4 of the Standard Review Plan to correct this situation under an established office procedure for this action. Among other things, this procedure calls for a cons 1deration of all proposed changes to the Stand-j ard Review Plan.by the CRGR.

l With respect to your statement that the NRC had rejected the applicant's appeal, I note that the appeal was held at the Assistant Director level.

Please note that the applicant may request an appeal to higher levels of i

NP.C nanagement, if the applicant believes such a request to be warranted.

gineerely, y

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t l-H. R. Denton, Director l

Office of Nuclear Reactor Regulation 1.

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