ML051120457

RAI, Bulletin 2003-01 on Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors (Tac No. MB9565, MB9566, MB9586, MB9587)

ML051120457
Person / Time
Site:	Mcguire, Catawba, McGuire
Issue date:	04/22/2005
From:	Sean Peters NRC/NRR/DLPM/LPD2
To:	Mccollum W Duke Energy Corp
Peters S, NRR/DLPM, 415-1842
References
TAC MB9565, TAC MB9566, TAC MB9586, TAC MB9587
Download: ML051120457 (4)

Text

April 22, 2005 Mr. William R. McCollum, Jr.

Vice President, Nuclear Support Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNITS 1 AND 2 AND MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 RE: REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MB9565, MB9566, MB9586, AND MB9587)

Dear Mr. McCollum:

By letters dated August 7, 2003, and May 27, 2004, Duke Energy Corporation submitted its response to the Nuclear Regulatory Commission (NRC) Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors, for Catawba Nuclear Station and McGuire Nuclear Station. The NRC staff has reviewed your response and has determined that additional information is required for the NRC staff to complete its review, as identified in the Enclosure.

We discussed these issues with your staff on April 13, 2005. Your staff indicated that you would attempt to provide your response by May 31, 2005.

Please contact me at (301) 415-1842, if you have any other questions on these issues.

Sincerely,

/RA/

Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413, 50-414, 50-369, and 50-370

Enclosure:

Request for Additional Information cc w/encl: See next page

April 22, 2005 Mr. William R. McCollum, Jr.

Vice President, Nuclear Support Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNITS 1 AND 2 AND MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 RE: REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MB9565, MB9566, MB9586, AND MB9587)

Dear Mr. McCollum:

By letters dated August 7, 2003, and May 27, 2004, Duke Energy Corporation submitted its response to the Nuclear Regulatory Commission (NRC) Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors, for Catawba Nuclear Station and McGuire Nuclear Station. The NRC staff has reviewed your response and has determined that additional information is required for the NRC staff to complete its review, as identified in the Enclosure.

We discussed these issues with your staff on April 13, 2005. Your staff indicated that you would attempt to provide your response by May 31, 2005.

Please contact me at (301) 415-1842, if you have any other questions on these issues.

Sincerely,

/RA/

Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413, 50-414, 50-369, and 50-370

Enclosure:

Request for Additional Information cc w/encl: See next page DISTRIBUTION:

PUBLIC RidsNrrPMSPeters PDII-1 R/F MErnstes, Rgn II RidsNrrDlpmLpdii-1 (JNakoski) LWhitney RidsOgcRp CHawes (Hard copy)

RidsAcrsAcnwMailCenter MKowal ADAMS Accession: ML051120457 NRR-088 OFFICE PDII-1/PM PDII-1/LA PDII-1/SC NAME SPeters CHawes JNakoski DATE 4/ 22 /05 4/ 22 /05 4/ 22 /05 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION DUKE POWER COMPANY CATAWBA NUCLEAR STATION, UNITS 1 AND 2 AND MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-413, 50-414, 50-369, AND 50-370 The Nuclear Regulatory Commission (NRC) staff has reviewed the licensees responses dated August 7, 2003, and May 27, 2004, to NRC Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors, for Catawba Nuclear Station and McGuire Nuclear Station. The NRC staff has identified the following information that is needed to enable the continuation of its review.

In the letter dated May 27, 2004, Duke provided the following information regarding two potential candidate operator actions (COAs):

1. Stopping one train of containment spray early in an event (COA #A1a). Duke stated that, the safety analysis might support this strategy, but declined to pursue COA A1a because, It is not expected that this effort could be completed within the interim period of time intended for use of this compensatory measure.

2. For preventing or delaying containment spray for small break Loss of Coolant Accidents in ice condenser plants (moving the containment spray setpoint) (COA #A11), Duke stated that, It is expected that analysis using alternative source term (AST) methodology would support a delayed auto-start of containment spray, and that Catawba and McGuire are seeking regulatory approval of AST methodology, but declined to pursue COA #A11 because, Sufficient time will not be available to enable completion of the analysis, plant modifications, procedure changes, and operator training within the time period these interim compensatory measures are intended to be utilized.

The NRC staff does not accept insufficient available time to be an acceptable basis for not considering a CAO. The Westinghouse Owners Group published WCAP-16204, Evaluation of Potential ERG and EPG Changes to Address NRC Bulletin 2003-01 Recommendations (PA-SEE-0085), in March 2004, and licensees have already had a full year in which to evaluate these proposed COAs. Duke must provide a valid technical basis for not considering these two CAOs. As such, the NRC staff requests that Duke provide a technical basis for not evaluating and rejecting the above two CAOs, including any difficulties perceived in implementing the CAOs with respect to AST and containment pressure.

McGuire Nuclear Station Catawba Nuclear Station cc:

Ms. Lisa F. Vaughn Mr. Richard M. Fry, Director Duke Energy Corporation Division of Radiation Protection Mail Code - PB05E NC Dept of Environment, Health, & Natural 422 S. Church St. Resources P.O. Box 1244 3825 Barrett Dr.

Charlotte, NC 28201-1244 Raleigh, NC 27609-7721 County Manager of Mecklenburg County Ms. Karen E. Long 720 E. Fourth St. Asst Attorney General Charlotte, NC 28202 NC Dept of Justice P.O. Box 629 Mr. C. Jeffrey Thomas Raleigh, NC 27602 Manager Regulatory Compliance Duke Energy Corporation Mr. R.L. Gill, Jr., Manager McGuire Nuclear Site Nuclear Regulatory Issues & Industry 12700 Hagers Ferry Road Affairs Huntersville, NC 28078 Duke Energy Corporation 526 S. Church St.

Anne Cottingham, Esq. Mail Stop EC05P Winston and Strawn LLP Charlotte, NC 28202 1700 L St, NW Washington, DC 20006 NCEM REP Program Manager 4713 Mail Service Center Senior Resident Inspector Raleigh, NC 27699-4713 c/o U.S. Nuclear Regulatory Commission 12700 Hagers Ferry Road Mr. T. Richard Puryear Huntersville, NC 28078 Owners Group (NCEMC)

Duke Energy Corporation Mr. Peter R. Harden, IV 4800 Concord Road VP-Customer Relations and Sales York, SC 29745 Westinghouse Electric Company 6000 Fairview Road Lee Keller 12th Floor Regulatory Compliance Manager Charlotte, NC 28210 Duke Energy Corporation 4800 Concord Road Dr. John M. Barry York, South Carolina 29745 Mecklenburg County Department of Environmental Protection 700 N. Tryon Street Charlotte, NC 28202

McGuire Nuclear Station Catawba Nuclear Station cc:

NC Municipal Power Agency No. 1 1427 Meadowwood Boulevard P.O. Box 29513 Raleigh, NC 27626-0513 County Manager of York County York County Courthouse York, SC 29745 Piedmont Municipal Power Agency 121 Village Dr.

Greer, SC 29651 Saluda River Electric P.O. Box 929 Laurens, SC 29360 Henry Porter, Assistant Director Division of Waste Management Bureau of Solid and Hazardous Waste Dept of Health & Environmental Control 2600 Bull St.

Columbia, SC 29201-1708 NC Electric Membership Corp.

P.O. Box 27306 Raleigh, NC 27611 Senior Resident Inspector 4830 Concord Road York, SC 29745 Mr. Dhiaa Jamil Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, SC 29745 Mr. G.R. Peterson Vice President McGuire Nuclear Station Duke Energy Corporation 12700 Hagers Ferry Road Huntersville, NC 28078 Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006