Letter Sequence Other |
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MONTHYEARML0603800022006-02-0909 February 2006 Letter MC4698, RAI for GL-2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design-Basis Accidents at Pressurized-Water Reactors. Project stage: RAI ML0710701332007-03-14014 March 2007 Task Order No. 004 to Delivery No. DR-03-06-046 Project stage: Other ML0817506352008-07-0101 July 2008 Generic Letter 2004-02, Supplemental Response Project stage: Other LR-N13-0148, Generic Letter 2004-02 In-Vessel Downstream Effects Resolution2013-07-11011 July 2013 Generic Letter 2004-02 In-Vessel Downstream Effects Resolution Project stage: Request ML13219A1102013-07-31031 July 2013 Closure Options for Generic Safety Issue (GSI)-191, Assessment of Debris Accumulation on Pressurized-Water Reactor Sump Performance in Resolution of Final Issues Related to Generic Letter (GL) 2004-02... Project stage: Request ML13339A7892013-12-0505 December 2013 12/5/13 e-mail from R.Guzman to B.Meixell GSI-191 Closure Options Due Date Request Project stage: Other ONS-2014-024, Closure Option 1 Response for Generic Safety Issue (GSI)-1 91, Assessment of Debris Accumulation on Pressurized-Water Reactor Sump Performance in Resolution of Final Issues Related to Generic Letter (GL) 2004-02, Potential Impact of Deb2014-02-27027 February 2014 Closure Option 1 Response for Generic Safety Issue (GSI)-1 91, Assessment of Debris Accumulation on Pressurized-Water Reactor Sump Performance in Resolution of Final Issues Related to Generic Letter (GL) 2004-02, Potential Impact of Debris. Project stage: Request ML14113A2212014-04-30030 April 2014 NRC Staff Review of the Documentation Provided by PSEG Nuclear LLC for the Salem Generating Station Units 1 and 2 Concerning Resolution of Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Project stage: Request ML14219A4822014-08-27027 August 2014 Closeout of Generic Letter, 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors Project stage: Other ML14218A8072014-08-27027 August 2014 NRC Staff Review of the Documentation Provided by Duke Energy for the Oconee Nuclear Station Concerning Resolution of GL 2004-02 Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Wat Project stage: Request 2013-07-11
[Table View] |
Oconee, Units 1, 2, and 3, Generic Letter 2004-02, Supplemental ResponseML081750635 |
Person / Time |
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Site: |
Oconee |
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Issue date: |
07/01/2008 |
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From: |
Olshan L N NRC/NRR/ADRO/DORL/LPLII-1 |
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To: |
Baxter D A Duke Energy Carolinas |
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Olshan L N, NRR/DLPM, 415-1419 |
References |
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GL-04-002, TAC MC4698, TAC MC4699, TAC MC4700 |
Download: ML081750635 (4) |
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Category:Letter
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[Table view] |
Text
July 1, 2008
Mr. David A. Baxter Vice President, Oconee Site Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672
SUBJECT:
GENERIC LETTER 2004-02 SUPPLEMENTAL RESPONSE - OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (TAC NOS. MC4698, MC4699, AND MC4700)
Dear Mr. Baxter:
By letter dated February 29, 2008, you submitted a supplemental response to Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors," for Oconee Nuclear Station, Units 1, 2, and 3 (Oconee). We have reviewed your submittal with a process that involved a detailed review by a team of 10 subject matter experts, with focus on the review areas described in the U.S. Nuclear Regulatory Commission's (NRC's) "Content Guide for Generic Letter 2004-02 Supplemental Responses" (ML073110389). The review process also included a separate "holistic" review of your submittal informed by inputs from the subject matter experts that focused on whether you have demonstrated overall that your corrective actions for Generic Letter 2004-02 are adequate.
We have no further questions at this time regarding your completion of corrective actions for Generic Letter (GL) 2004-02. In large part this conclusion is based on the very low potential debris loading at Oconee, as discussed in your supplemental response.
As you may be aware, we have not yet issued a final safety evaluation (SE) on WCAP 16793 NP, "Evaluation of Long-Term Cooling Considering Particulate, Fibrous, and Chemical Debris in the Recirculating Fluid." We believe that the likelihood of unacceptable in-vessel debris impact for Oconee is very low because of the low debris loading. However, because your GL 2004-02 response refers to and relies on this topical report, we plan to defer issuance of a closure letter to Oconee for the GL until uncertainties regarding the remaining issues with WCAP-16793 are reduced. You may wait for the issue to be resolved through the WCAP process or may demonstrate that in-vessel downstream effects issues are resolved for Oconee by demonstrating without reference to WCAP-16793 or the NRC staff SE that in-vessel downstream effects have been addressed at Oconee. We are developing a Regulatory Issue Summary to inform the industry of our expectations and plans regarding resolution of this remaining aspect of GSI-191.
In addition, you have committed to certain corrective actions that have not yet been performed. We expect that you will report completion of these remaining items to the NRC after the last one has been implemented.
If you have any further questions on this matter, please contact me at 301-415-1419.
Sincerely, /RA/
Leonard N. Olshan, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287 cc: See next page In addition, you have committed to certain corrective actions that have not yet been performed. We expect that you will report completion of these remaining items to the NRC after the last one has been implemented.
If you have any further questions on this matter, please contact me at 301-415-1419.
Sincerely, /RA/
Leonard N. Olshan, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287 cc: See next page
Distribution
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RidsNrrPMLOlshan (hard copy) RidsOgcRp RidsAcrsAcnw_MailCenter RidsRgn2MailCenter (JMoorman) RidsNrrDorlDpr M. Scott, NRR Accession Number: ML081750635 OFFICE NRR/LPL2-1/PM NRR/LPL2-1/LA DSS/SSIB/BC NRR/LPL2-1/BC NAME LOlshan MO'Brien MScott MWong DATE 06/30/08 06/30/08 06/30/08 07/01/08 OFFICIAL RECORD COPY
Oconee Nuclear Station, Units 1, 2, and 3 cc: Mr. Dave Baxter Vice President, Oconee Site Duke Power Company LLC 7800 Rochester Highway Seneca, SC 29672 Ms. Lisa F. Vaughn Associate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202 Manager, LIS NUS Corporation 2650 McCormick Dr., 3rd Floor Clearwater, FL 34619-1035 Senior Resident Inspector U.S. Nuclear Regulatory Commission 7812B Rochester Highway Seneca, SC 29672 Mr. Henry Porter, Director Division of Radioactive Waste Management Bureau of Land and Waste Management Dept. of Health and Env. Control 2600 Bull St. Columbia, SC 29201-1708
Mr. B. G. Davenport Regulatory Compliance Manager Oconee Nuclear Site Duke Energy Corporation ON03RC 7800 Rochester Highway Seneca, SC 29672 Ronnie L. Gardner, PMP Manager, Site Operations and Corporate Regulatory Affairs AREVA NP Inc. An AREVA AND Siemens Company 3315 Old Forest Road OF -16 Lynchburg, VA 24501 Mr. Leonard G. Green Assistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602 Mr. R. L. Gill, Jr.
Manager - Nuclear Regulatory Issues and Industry Affairs Duke Power Company LLC 526 S. Church St. Mail Stop EC05P Charlotte, NC 28202
Division of Radiation Protection NC Dept of Environment, Health, & Natural Resources 3825 Barrett Dr. Raleigh, NC 27609-7721
Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, NC 28210 Mr. Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006 Mr. Charles Brinkman Director, Washington Operations Westinghouse Electric Company 12300 Twinbrook Parkway, Suite 330 Rockville, MD 20852 Ms. Kathryn B. Nolan Senior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202