ML073040346

Three Mile Island Nuclear Station, Unit 1-Distribution of Revision 2 of the Nrc'S Significance Determination Process Risk-Informed Inspection Notebooks, and Accompanying Phase 2 Pre-Solved Tables

ML073040346
Person / Time
Site:	Three Mile Island
Issue date:	10/29/2007
From:	Bamford P J NRC/NRR/ADRO/DORL/LPLI-2
To:	Crane C M AmerGen Energy Co
Bamford, Peter J., NRR/DORL 415-2833
Shared Package
ML072480626	List: ML073040346
References
TAC MD6415
Download: ML073040346 (4)

Text

OFFICIAL USE ONLY SECURITY RELATED .hIFORMATION C .UNITED STATES C- REGULATORY COMMISSION Z ,WASHINGTON, D.C. 20555-0001 October 29, 2007 Mr. Christopher M. Crane President and Chief Executive Officer AmerGen Energy Compan'y, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348

SUBJECT:

THREE MILE ISLAND NUCLEAR STATION, UNIT 1 -DISTRIBUTION OF REVISION 2 OF THE NRC'S SIGNIFICANCE DETERMINATION PROCESS RISK-INFORMED INSPECTION NOTEBOOKS, AND ACCOMPANYING PHASE 2 PRE-SOLVED TABLES (TAC NO. MD6415)

Dear Mr. Crane:

In 2004, the U.S. Nuclear Regulatory Commission (NRC) requested information from licensees to support the Significance Determination Process (SDP) Risk-Informed Inspection Notebook (notebook) enhancement/standardization effort. The NRC has completed this effort and has issued Revision 2 of the notebook for Three Mile Island Nuclear Station, Unit 1 (TMI-1). The NRC developed these notebooks to facilitate Phase 2 of the NRC inspection finding significance determination process detailed in Inspection Manual Chapter 0609, "Significance Determination Process," Appendix A, "Determining the Significance of Reactor Inspection Findings for At-Power Situations." SECY-99-007A, "Recommendations for Reactor Oversight Process Improvements," sets forth this process and additional details are included in the NRC Inspection Manual Chapter 0308, "Reactor Oversight Process Basis Document." NRC inspectors and risk analysts, who have extensive understanding of plant-specific design features and operation, are expected to use these notebooks.

The notebooks will be updated on a case-by-case basis as needed to reflect changes to the facilities.

Revision 2 of the notebooks is accompanied by the Site Specific Pre-Solved Spreadsheet (the Spreadsheet).

The NRC added the Spreadsheet to help reduce the time it takes to process inspection findings.

The NRC benchmarked the notebooks against licensee Probability Risk Assessments and plant configurations.

The enclosed compact disk containing the above documents is provided for your use to facilitate your understanding of the SDP in Inspection Manual Chapter 0609.The enclosure transmitted herewith contains Security-Related information.

When separated from enclosure, this document is decontrolled.

OFFICIAL USE ONLY SECURITY RELATED INFORMATION OFFICIAL USE ONLY SECURITY RELATED INFORMATION-C. Crane The information on the enclosed compact disk is designated exempt from public disclosure pursuant to Section 2.390(d)(1 ) of Title 10 of the Code of Federal Regulations since it contains security-related information.

!f you have any questions, please contact me at (301) 415-2833.Sincerely, Peter J. Bamford, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289

Enclosure:

Compact Disk with.TMI-1 SDP Revision 2 and Site Specific Pre-Solved Spreadsheet Official Use Only-Security Related Information cc w/o enc: See next page OFFICIAL USE ON'LY SECURITY RELATED INFORMATION Three Mile Island Nuclear Station, Unit 1 cc (w/o encl): Site Vice President

-Three Mile Island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P. O. Box 480 Middletown, PA 17057 Vice President

-Operations, Mid-Atlantic AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Vice President

-Licensing and Regulatory Affairs AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 Regional Administrator Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Chairman Board of County Commissioners of Dauphin County Dauphin County Courthouse Harrisburg, PA 17120 Chairman Board of Supervisors of Londonderry Township R.D. #1, Geyers Church Road Middletown, PA 17057 Senior Resident Inspector (TMI-1)U.S. Nuclear Regulatory Commission P.O. Box 219 Middletown, PA 17057 Director -Licensing and Regulatory Affairs AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348 Director Bureau of Radiation Protection Pennsylvania Department of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469 Plant Manager -Three Mile Island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P. 0. Box 480 Middletown, PA 17057 Regulatory Assurance Manager -Three Mile island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P.O. Box 480 Middletown, PA 17057 Ronald Bellamy, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Michael A. Schoppman Framatome ANP Suite 705 1911 North Ft. Myer Drive Rosslyn, VA 22209 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Eric Epstein TMI Alert 4100 Hillsdale Road Harrisburg, PA 17112 Correspondence Control Desk AmerGen Energy Company, LLC P.O. Box 160 Kennett Square, PA 19348 Three Mile Island Nuclear Station, Unit 1 cc (w/o encl): Manager Licensing

-Three Mile Island Nuclear Station, Unit 1 Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348 Mr. Christopher M. Crane President and Chief Executive Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 Assistant General Counsel AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348 Associate General Counsel Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 OFFICIAL.

U -E OL. SECURITY RELATED INFORMATION C. Crane The information on the enclosed compact disk is designated exempt from public disclosure pursuant to Section 2.390(d)(1) of Title 10 of the Code of Federal Regulations since it contains security-related information.

If you have any questions, please contact me at (301) 415-2833.Sincerely, Ira/Peter J. Bamford, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289

Enclosure:

Compact Disk with TMI-1 SDP Revision 2 and Site Specific Pre-Solved Spreadsheet Official Use Only-Security Related Information cc w/o encl: See next page DISTRIBUTION (w/o encl): Public LPL1-2 R/F RidsNrrDorlLpll-2 RidsNrrLAABaxter RidsNrrPMPBamford RidsOgsRp RidsOgcMailCenter RidsAcrsAcnwMailCenter RidsRgnl MailCenter JWeibe, NRR MFranovich, NRR ADAMS Accession Nos. Package/ML072480626; Non-Public Letter/ML072480632; Enclosures/ML071700540, ML071700541; Public Letter/ML073040346 LPL1-2/PM LPL1I2/LA LPL1-2/BC Name PBamford ABaxter HChernoff Date 10/18/2007 10/18/2007 10/29/2007 Official Record Copy I 1FFi" QIA I.I.F el r%" "lr-lr-r Iu i" r- AT.=l 'i/Ft_.i_

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