ML17312B542

Requests Addl Info to Complete Review of Util Request to Utilize risk-informed Inservice Testing Program.Info to Be Submitted within Approx 45 Days

ML17312B542
Person / Time
Site:	Palo Verde
Issue date:	06/09/1997
From:	Clifford J NRC (Affiliation Not Assigned)
To:	James M. Levine ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
References
TAC-M94139, TAC-M94140, TAC-M94141, NUDOCS 9707020398
Download: ML17312B542 (5)

Text

~ PR R500 0

ca a

00 I/l 0 ~

0 Y/

~0

+a**+

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055&0001 dune 9, 1997 Mr. James H. Levine Executive Vice President.

Nuclear Arizona Public Service Company Post Office Box 53999

Phoenix, Arizona 85072-3999

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - RISK-INFORMED INSERVICE TESTING FOR PALO VARDE NUCLEAR GENERATING. STATION (TAC NOS.

H94139, M94140, AND M94141)

References:

1.

Arizona Public Service letter 102-03554-WLS/AKK/GAM, from W.

L. Stewart to the NRC, dated November 27.

1995 2.

Arizona Public Service letter 102-03573-WLS/SAB/GAH, from W.

L. Stewart to the'RC, dated December 20, 1995 3.

NRC letter from Charles R.

Thomas to W. L. Stewart.

APS, dated March 15, 1996 4.

Arizona Public Service letter 102-03714-JAB/AKK/GAM, from Jack A. Bailey to the NRC, dated June 7, 1996 5.

Arizona Public Service letter 102-03752-WLS/AKK/GAM, from W.

L. Stewart to the NRC, dated August 7, 1996 6.

Arizona Public Service letter 102-03763-AKK/GAM, from A. K.

Krainik to the NRC, dated August 23.

1996 7.

NRC letter from James W. Clifford to W. L. Stewart,

APS, dated March 21, 1997

Dear Hr. Levine:

Arizona Public Service (APS) submitted a request to the NRC (references 1 and

2) to utilize a risk-inf'ormed inservice testing (RI-IST) program to determine inservice test frequencies for certain valves that were categorized as low safety significant.

The request was part of a pilot plant effort.

The NRC staff provided an initial request for additional information (RAI) to APS related to the proposed RI-IST program via reference 3

~

The NRC staff met with APS at the Pa'to Verde Nuclear Generating Station (PVNGS) site on April 23 and 24, 1996, to discuss the RAI.

APS provided a partial response to the NRC staff's initial RAI via reference 4.

In reference 5.

APS committed to provide J~g a revised schedule for fully responding to the staff's initial RAI by September 15, 1996.

APS submitted some additional information to the NRC in support of their proposed RI-IST program via reference 6.

The NRC staff provided a second RAI to APS related to the proposed RI-IST program via reference 7.

The second RAI focused on several of the key areas described in the enclosed draft regulatory guides and standard review plan sections.

9707020398 970609 PDR i,. 'ADOCK '05000528 P

PDR

(

- Hr. James H. Levine 3une 9, 1997 I

The enclosed draft,regulatory guides, draft standard review plan sections,

.and draft NUREG will be issued by the NRC for a 90-day public comment period in the near future.

An advance copy of these documents is being provided to you for two reasons.,

First', the NPC staff.,is requesting APS's comments (i.e.,

as one of the two RI-IST pilot plants) on these draft documents.

Second, the NRC staff is requesting that APS describe how its proposed RI-IST program comports with the guidance provided in Draft Regulatory Guide DG-1061

- General Guidance and Draft, Regulatory Guide DG-.'l062 - IST.

Where APS's approach used in its proposed RI-IST program differs from the approach described in these draft documents, the NRC staff requests that you describe your proposed alternative as well as the basis for its acceptability.

This will facilitate preparation of the NRC staff's safety evaluation of APS's proposed RI-IST

. program and will be useful in'revising the draft regulatory guides and standard review plan sections.

The NRC staff would appreciate a response to this RAI as soon as possible (e.g., within approximately,45 days of receipt of this request).

If you are unable to provide a timely response to this RAI, we request that you submit within 45 days a plan and schedule for providing a complete response to the NRC.

Sincerely, Orig>nal Signed By James W. Clifford, Senior Project Manager Project Directorate IV-2 Division of Reactor Projects

- III/IV Office of Nuclear Reactor Regulation Docket Nos.

STN 50-528, STN 50-529 and STN 50-530

Enclosures:

1.

Draft Regulatory Guide OG-1061

- General Guidance 2.

Draft Regulatory Guide DG-1062

- IST 3.

Draft Standard Review Plan

- General Guidance 4.

Draft Standard Review Plan

- IST 5.

Draft NUREG-1602 - Use of PRA in Risk-Informed Applications cc w/encl:

See next page

• For previous concurrences see attached ORC Document Name:

PVRAI.3 DISTRIBUTION:

'Docket~

PUBLIC POIV-2 Reading JRoe EAdensam WBateman JClifford DTerao BHardin GLainas JColaccino EPeyton

PGwynn, Region IV

KPerkins, Region IV WCFO DKirsch, Region IV WCFO ACRS OGC OFischer RWessman BSheron HCheok OFC LA:PDIV-2 PDI-EMEB:DE*

EHEB:DE*

EHEB:OE*

NAME

~ey oOO JClifford OFischer:ye DTerao RWessman DATE 6/6/97 6/

/97 L

RD 5/23/97 5/23/97 5/23/97

~

Hr. James H. Levine 3une 9, 1997 cc w/encl:

Hr. Steve Olea Arizona Corporation Commission 1200 W. Washington Street

Phoenix, Arizona 85007 Douglas Kent Porter Senior Counsel Southern California Edison Company Law Department.

Generation Resources P.O.

Box 800 Rosemead.

Cali forni a 91770 Senior Resident Inspector USNRC P. 0.

Box 40

Buckeye, Arizona 85326 Regional Administrator, Region IV U. S. Nuclear Regulatory Commission Harris Tower 8 Payi llion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064

Chairman, Board of Supervisors ATTN:

Chairman 301 W. Jefferson, 10th Floor

Phoenix, Arizona 85003 Mr. Aubrey V. Godwin, Director Arizona Radiation Regulatory Agency 4814 South 40 Street

Phoenix, Arizona 85040 Ms. Angela'. Krainik, Manager Nuclear Licensing Arizona Public Service Company P.O.-Box 52034 Phoenix, Arizona 85072-2034 Mr. John C. Horne, Vice President Power Supply Palo Verde Ser vices 2025 N. Third Street, Suite 220 Phoenix, Arizona 85004 Mr. David Summers Public Service Company of New Mexico 414 Silver SW, f0604 Albuquerque, New Mexico 87102 Hr. Robert D. Bledsoe Southern Californig Edison Company 14300 Mesa

Road, Drop D41-SONGS San Clemente, California 92672 Mr. Robert Henry Salt River Project 6504 East Thomas Road Scottsdale.

Arizona 85251 Terry Bassham, Esq.

General Counsel El Paso Electric Company 123 W. Hills El Paso, Texas 79901 Hr. Robert Burt, Los Angeles Department of Water 8 Power Southern California Public Power Authority.

ill North Hope Street, Room 1255-B Los Angeles, California 90051

0 ~.