NOC-AE-05001907, 45-Day Response to a Request for Additional Information Related to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors

45-Day Response to a Request for Additional Information Related to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors

ML052000281
Person / Time
Site:	South Texas
Issue date:	07/13/2005
From:	Jordan T South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-04-002, NOC-AE-05001907, STI: 31901385, TAC MC4719, TAC MC4720
Download: ML052000281 (4)

Text

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Nuclear Operating Company South Trs P/cdEkdracl GcenraenSSbtln P0. 8o 2829 dsModh, Tr 77483?

July 13, 2005 NOC-AE-05001907 10CFR50.54(f)

U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Units 1 and 2 Docket Nos. STN 50-498 and STN 50-499 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors" (TAC Nos. MC4719 and MC4720)

Reference:

Letter, Thomas J. Jordan to NRC Document Control Desk, "90-Day Response to Generic Letter 2004-02: Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors," dated March 8, 2005 (NOC-AE-05001862) of this letter provides the STP Nuclear Operating Company's (STPNOC) 45-day response to a request for additional information from the NRC staff regarding the referenced STPNOC 90-day response to Generic Letter 2004-02.

The only commitments in this letter are summarized in Attachment 2.

If there are any questions regarding this response, please contact Scott Head at (361) 972-7136 or me at (361) 972-7902.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on -JU)o fl3, Z00 Vice President, Engineering jail/

Attachments:

1. 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors"

2. List of Commitments STI: 31901385 4/ (12

NOC-AE-05001 907 Page 2 of 2 cc:

(paper copy) (electronic copy)

Bruce S. Mallett A. H. Gutterman, Esquire Regional Administrator, Region IV Morgan, Lewis & Bockius LLP U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 David H. Jaffe Arlington, Texas 76011-8064 U. S. Nuclear Regulatory Commission Richard A. Ratliff Jack A. Fusco Bureau of Radiation Control Michael A. Reed Texas Department of State Health Services Texas Genco, LP 1100 West 49th Street Austin, TX 78756-3189 Jeffrey Cruz C. Kirksey U. S. Nuclear Regulatory Commission City of Austin P. O. Box 289, Mail Code: MN116 Wadsworth, TX 77483 Jon C. Wood Cox Smith Matthews C. M. Canady J. J. Nesrsta City of Austin R. K. Temple Electric Utility Department E. Alarcon 721 Barton Springs Road City Public Service Austin, TX 78704

NOC-AE-05001 907 Attachment 1 Page 1 of 1 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors" As a result of the review of the 90-day responses for all licensees and recent discussions with industry, the staff is concerned that some licensees may be delaying the evaluation of chemical and downstream effects until after the September 1, 2005, due date for the next response to the GL. This would result in an incomplete response and is not in accordance with the schedule in the GL. Your 90-day response indicated that your analysis will be completed by September 1, 2005, but did not discuss the evaluation of chemical and downstream effects.

NRC Requested Information:

Although the GL did not specifically request that the evaluation of chemical and downstream effects be discussed in the 90-day response, please discuss your plans and schedule for evaluating chemical and downstream effects and verify whether your September 1, 2005, response will include an evaluation of these effects.

STP Response:

STP will include evaluations of both chemical and downstream effects in the September 1, 2005 response.

NOC-AE-05001 907 Attachment 2 Page 1 of 1 List of Commitments The following table identifies those actions committed to by the STP Nuclear Operating Company in this document. Any statements in this submittal with the exception of those in the table below are provided for information purposes and are not considered commitments. Please direct questions regarding these commitments to Joe Loya at (361) 972-7922.

Commitment Due Date Condition Report Include both chemical and downstream effects 09/01/2005 04-12498-8 evaluations in the September 1, 2005 GNL 2004-02 response.

Text

-

Nuclear Operating Company South Trs P/cdEkdracl GcenraenSSbtln P0. 8o 2829 dsModh, Tr 77483?

July 13, 2005 NOC-AE-05001907 10CFR50.54(f)

U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Units 1 and 2 Docket Nos. STN 50-498 and STN 50-499 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors" (TAC Nos. MC4719 and MC4720)

Reference:

Letter, Thomas J. Jordan to NRC Document Control Desk, "90-Day Response to Generic Letter 2004-02: Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors," dated March 8, 2005 (NOC-AE-05001862) of this letter provides the STP Nuclear Operating Company's (STPNOC) 45-day response to a request for additional information from the NRC staff regarding the referenced STPNOC 90-day response to Generic Letter 2004-02.

The only commitments in this letter are summarized in Attachment 2.

If there are any questions regarding this response, please contact Scott Head at (361) 972-7136 or me at (361) 972-7902.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on -JU)o fl3, Z00 Vice President, Engineering jail/

Attachments:

1. 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors"

2. List of Commitments STI: 31901385 4/ (12

NOC-AE-05001 907 Page 2 of 2 cc:

(paper copy) (electronic copy)

Bruce S. Mallett A. H. Gutterman, Esquire Regional Administrator, Region IV Morgan, Lewis & Bockius LLP U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 David H. Jaffe Arlington, Texas 76011-8064 U. S. Nuclear Regulatory Commission Richard A. Ratliff Jack A. Fusco Bureau of Radiation Control Michael A. Reed Texas Department of State Health Services Texas Genco, LP 1100 West 49th Street Austin, TX 78756-3189 Jeffrey Cruz C. Kirksey U. S. Nuclear Regulatory Commission City of Austin P. O. Box 289, Mail Code: MN116 Wadsworth, TX 77483 Jon C. Wood Cox Smith Matthews C. M. Canady J. J. Nesrsta City of Austin R. K. Temple Electric Utility Department E. Alarcon 721 Barton Springs Road City Public Service Austin, TX 78704

NOC-AE-05001 907 Attachment 1 Page 1 of 1 45-Day Response to a Request for Additional Information (RAI) Related to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors" As a result of the review of the 90-day responses for all licensees and recent discussions with industry, the staff is concerned that some licensees may be delaying the evaluation of chemical and downstream effects until after the September 1, 2005, due date for the next response to the GL. This would result in an incomplete response and is not in accordance with the schedule in the GL. Your 90-day response indicated that your analysis will be completed by September 1, 2005, but did not discuss the evaluation of chemical and downstream effects.

NRC Requested Information:

Although the GL did not specifically request that the evaluation of chemical and downstream effects be discussed in the 90-day response, please discuss your plans and schedule for evaluating chemical and downstream effects and verify whether your September 1, 2005, response will include an evaluation of these effects.

STP Response:

STP will include evaluations of both chemical and downstream effects in the September 1, 2005 response.

NOC-AE-05001 907 Attachment 2 Page 1 of 1 List of Commitments The following table identifies those actions committed to by the STP Nuclear Operating Company in this document. Any statements in this submittal with the exception of those in the table below are provided for information purposes and are not considered commitments. Please direct questions regarding these commitments to Joe Loya at (361) 972-7922.

Commitment Due Date Condition Report Include both chemical and downstream effects 09/01/2005 04-12498-8 evaluations in the September 1, 2005 GNL 2004-02 response.