ML100141784

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Summary of Tele Conf Call Held on 1/14/10, Btw the Usnrc and Arizona Public Service Company, Concerning Draft Request for Additional Information Pertaining to the Palo Verde Nuclear Generating Station, Units 1, 2, and 3 License Renewal Appl
ML100141784
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 01/22/2010
From: Regner L M
License Renewal Projects Branch 2
To:
Regner L M, NRR/DLR, 415-1906
References
Download: ML100141784 (7)


Text

January 22, 2010 LICENSEE: Arizona Public Service Company

FACILITY: Palo Verde Nuclear Generating Station, Units 1, 2, and 3

SUBJECT:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON JANUARY 14, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ARIZONA PUBLIC SERVICE COMPANY, CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO THE PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3, LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission (the staff) and representatives of Arizona Public Service Company (the applicant) held a telephone conference call on January 14, 2010, to discuss and clarify the staff's draft request for additional information (RAI) concerning the Palo Verde Nuclear Generating Station, Units 1, 2, and 3, license renewal application. The telephone conference call was useful in clarifying the intent of the staff's draft RAI.

provides a listing of the participants and Enclosure 2 contains a listing of the draft questions discussed with the applicant, including a brief description on the status of the items. The applicant had an opportunity to comment on this summary.

/RA/ Lisa M. Regner, Sr. Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation

Docket Nos. 50-528, 50-529, and 50-530

Enclosures:

As stated cc w/encls: See next page

ML100141784 OFFICE LA:DLR PM:RPB2:DLR BC:RPB2:DLR PM:RPB2:DLR

NAME SFigueroa LRegner DWrona LRegner DATE 01/19/10 01/20/10 01/22/10 01/22/10 Memo to Arizona Public Service Company from Lisa M. Regner dated January, 22, 2010

SUBJECT:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON JANUARY 14, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ARIZONA PUBLIC SERVICE COMPANY, CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO THE PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3, LICENSE RENEWAL APPLICATION DISTRIBUTION

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L. Regner D. Drucker R. Hall B. Mizuno, OGC R. Treadway, RIV G. Pick, RIV ENCLOSURE 1 TELEPHONE CONFERENCE CALL PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS JANUARY 14, 2010 PARTICIPANTS AFFILIATIONSLisa Re gner U.S. Nuclear Re gulator y Commission (NRC) Albert Won g NRCTodd Mintz Center for Nuclear Waste Re gulator y Anal y ses (CNWRA)Roman Kazban CNWR A An gela Krainik Arizona Public Service Com p an y (APS) Glenn Michael APS Neal Schneider Strate gic Teamin g and Resource Sharin g (STARS) AllianceDonald Stevens STARSNicholas Gawel STARSAl Saunders STARS

ENCLOSURE 2 TELEPHONE CONFERENCE CALL CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 LICENSE RENEWAL APPLICATION JANUARY 14, 2010 The U.S. Nuclear Regulatory Commission (the staff) and representatives of Arizona Public Service Company (the applicant) held a telephone conference call on January 14, 2010, to discuss and clarify the following draft request for additional information (RAI) concerning the Palo Verde Nuclear Generating Station, Units 1, 2, and 3, license renewal application (LRA).

DRAFT RAI 3.1.2-1

=

Background===

The Generic Aging Lessons Learned (GALL) Report,Section X.M1 recommends the Metal Fatigue of Reactor Coolant Pressure Boundary Aging Management Program (AMP) for managing the aging of selected reactor coolant system components.

Issue In the LRA, Section 3.1.2.2.1, the applicant states that the pressurizer relief tank is not an ASME Section III Class 1 component, nor is it designated to other fatigue or cycle design rules, and therefore has no fatigue time-limited aging analysis (TLAA). However, the GALL Report,Section IV, Subsection C2, item IV.C2-23 states that a time-limited aging analysis is needed to evaluate metal fatigue of the pressurizer relief tank for the period of extended operation.

Request Provide additional information how metal fatigue of the pressurizer relief tank will be evaluated and managed for the period of extended operation.

DRAFT RAI 3.2.2-1

=

Background===

The GALL Report, Table V.C, item V.C-4, indicates that stainless steel containment isolation piping and component internal surfaces exposed to treated water are subject to loss of material/pitting and crevice corrosion as an aging effect/mechanism. The GALL Report states that the aging effect/mechanism can be managed by the Water Chemistry and One-time Inspection Programs. The GALL Report further states that a further evaluation should be conducted on these components.

Issue Section 3.2.2.2.8 of the LRA indicates that the further evaluation associated with this component is not applicable because the containment isolation components were "evaluated in the systems in which the components were found to have the function of containment integrity." Staff is unclear why the applicant indicates that this further evaluation for steel containment isolation piping is not applicable. Request Provide additional information what is meant by the containment isolation components were evaluated in the system in which the components were found to have the function of containment integrity. In addition, if a further evaluation is conducted for these components in a different system, provide the location of the further evaluation. If further evaluations were not conducted for these components, provide additional justification.

DRAFT RAI 3.3.2-1

=

Background===

The GALL Report, Table VIII, item VIII.A-5 is for copper piping exposed to treated water in the steam turbine system. The GALL Report suggests the use of the Water Chemistry Program augmented with the One-Time Inspection Program to manage loss of material and selective leaching in this system. However, the GALL Report in Table VII, item VII.C2-7 is for copper piping (Zinc > 15 percent) exposed to treated water in the Closed-Cycle Cooling Water System. The GALL Report suggests that loss of material and selective leaching for this component and system be managed by the Selective Leaching of Materials Program. One of the main differences between these two programs as described in the GALL Report is that hardness measurements are incorporated into the Selective Leaching of Materials Program, not in the Water Chemistry Program.

Issue Table 3.3.2-4 of the LRA indicates that a copper alloy (Zinc > 15 percent) piping exposed to demineralized water is consistent with GALL Report item VIII.A-5. However, LRA Table 3.3.2-4 is a closed-cycle cooling water system. As such it seems that the GALL Report item VII.C2-7 may be more appropriate for this material. It is not clear to the staff how the Water Chemistry Program augmented with the One-Time Inspection Program is sufficient to manage the loss of material for the LRA closed-cycle cooling water component since these programs do not require hardness testing.

Request Provide additional explanation on how the Water Chemistry Program (B2.1.2) and the One-Time Inspection (B2.1.16) will address the aging effect for loss of material for the copper alloy piping exposed to demineralized water in a Closed-Cycle Cooling Water System.

Discussion: The applicant indicated that all questions are clear. These draft questions will be sent in a formal RAI.

Palo Verde Nuclear Generating Station, Units 1, 2, and 3 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 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 Chairman Maricopa County Board of Supervisors 301 W. Jefferson, 10th Floor Phoenix, AZ 85003 Mr. Aubrey V. Godwin, Director Arizona Radiation Regulatory Agency 4814 S. 40th 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. John C. Taylor, Director, Nuclear Generation El Paso Electric Company 340 E. Palm Lane, Suite 310 Phoenix, AZ 85004 Mr. James Ray 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 Highway, Bldg. D21 San Clemente, CA 92672 Mr. Robert Henry Salt River Project 6504 E. 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. Eric Tharp 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 N. Congress Avenue Austin, TX 78701-3326

Mr. Randall K. Edington Executive Vice President Nuclear/CNO Arizona Public Service Company P.O. Box 52034, Mail Station 7602 Phoenix, AZ 85072-2034