ML073030007

(Public) Distribution of Revision 2 of the NRCs Significance Determination Process Risk-Informed Inspection Notebooks, and Accompanying Phase 2 Pre-Solved Tables (Tac No. MD6415)

ML073030007
Person / Time
Site:	Palo Verde
Issue date:	11/02/2007
From:	Markley M NRC/NRR/ADRO/DORL/LPLIV
To:	Edington R Arizona Public Service Co
Markley, M T, NRR/DORL/LP4, 301-415-5723
Shared Package
ML073030005	List: ML073030007
References
TAC MD6415
Download: ML073030007 (4)

Text

OFFIGCI6AL IIE NL" Y

SEUNlITY REILATED IlFOfl!*.1"TIAM UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 2, 2007 Mr. Randall K. Edington Executive Vice President, Nuclear Mail Station 7602

-Arizona-Public-Service-Company -.......

P.O. Box 52034 Phoenix, AZ 85072-2034

SUBJECT:

PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -

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. Edington:

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 Palo Verde Nuclear Generating Station, Units 1, 2, and 3.

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 separate from enclosure, this document is decontrolled.

OITIQIL UQEOr'L

~ECUflIT fELAB 1NFOfMATIOe' w4*

OFFICIAL U6E O,9NLY SECURR,'4 RELATED INF, IAFTIeN R.K. Edington. 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) 415-5723.

Sincerely, Michael T. Markley, Senior Project*Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-528, 50-529, and 50-530 License Nos. NPF-41, NPF-51, and NPF-74

Enclosure:

Compact Disk for Palo Verde Nuclear Generating Station, Units 1, 2, and 3, SDP Revision 2 and Site Specific Pre-Solved Spreadsheet Official Use Only - Security Related Information cc w/o encl: See next page OFFICI..

vE ONL u

6EG1URi* REL1ATED INFiRliRAIN

Palo Verde Nuclear Generating Station cc:

Mr. Steve Olea Arizona Corporation Commission 1200 W. Washington Street Phoenix, AZ 85007 Mr. Douglas Kent Porter Senior-Counsel-----

Southern California Edison Company Law Department, Generation Resources P.O. Box 800 Rosemead, CA 91770 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 40 Buckeye, AZ 85326 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 Chairman Maricopa County Board of Supervisors 301 W. Jefferson, 10th Floor Phoenix, AZ 85003 Mr. Aubrey V. Godwin, Director Arizona Radiation Regulatory Agency 4814 South 40 Street Phoenix, AZ 85040 Mr. Scott Bauer, Director Regulatory Affairs Palo Verde Nuclear Generating Station Mail Station 7636 P.O. Box 52034 Phoenix, AZ 85072-2034 Mr. Dwight C. Mims Vice President Regulatory Affairs and Plant Improvement Palo Verde Nuclear Generating Station Mail Station 7605 P.O. Box 52034 Phoenix, AZ 85072-2034 Mr. Matthew Benac Assistant Vice President Nuclear & Generation Services El Paso Electric Company 340 East Palm Lane, Suite 310 Phoenix, AZ 85004 Mr. John Taylor Public Service Company of New Mexico 2401 Aztec NE, MS Z110 Albuquerque, NM 87107-4224 Mr. Geoffrey M. Cook Southern California Edison Company 5000 Pacific Coast Hwy Bldg D21 San Clemente, CA 92672 Mr. Robert Henry Salt River Project 6504 East Thomas Road Scottsdale, AZ 85251 Mr. Jeffrey T. Weikert Assistant General Counsel El Paso Electric Company Mail Location 167 123 W. Mills El Paso, TX 79901 Mr. John Schumann Los Angeles Department of Water & Power Southern California Public Power Authority P.O. Box 51111, Room 1255-C Los Angeles, CA 90051-0100 Mr. Brian Almon Public Utility Commission William B. Travis Building P.O* Box 13326 1701 North Congress Avenue Austin, TX 78701-3326 Ms. Karen O'Regan Environmental Program Manager City, of Phoveni Office of Environmental Programs 200 West Washington Street Phoenix AZ 85003

PKG: (NON) ML073030005 PKG: (NON) ML071700338; LTR: (NON) ML073030006;, LTR: (PUBLIC) ML073030007 NTB: (NON) ML071700339; SS: (NON) ML071700343 OFFICE NRR/DORL/LPL4/PM NRR/DORL/LPL4/LA NRR/DORL/LPL4/BC NAME MMarkley 0-(-

JBurkhardt THiltz DATE 10/Z.G/07 1f/ 1 /07

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