ML17289A468

Application for Amend to License NPF-21,revising TSs 3.4.3.1,3.4.3.2,4.4.3.2.1.b,B 3/4.4.3.1 & B 3/4.4.3.2,per Generic Ltr 88-01 Re NRC Position on IGSCC in Austenitic Stainless Steel Piping

ML17289A468
Person / Time
Site:	Columbia
Issue date:	04/10/1992
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17289A469	List: ML17289A468 ML17289A470
References
GL-88-01, GL-88-1, GO2-92-085, GO2-92-85, NUDOCS 9204200088
Download: ML17289A468 (7)

Text

ACCELERATED DISTRIBUTION DEMONS 'roN SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9204200088 DOC.DATE: 92/04/10 NOTARIZED: YES DOCKET FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION SORENSEN,G.C. Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Application for amend to License NPF-21,revising TSs 3.4.3.1,3.4.3.2,4.4.3.2.1.b,B 3/4.4.3.1 & B 3/4.4.3.2,per Generic Ltr 88-01 re NRC position on IGSCC in austenitic D stainless steel piping.

DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR t ENCL j SIZE: l +8 TITLE: OR Submittal: General Distribution NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL D PD5 LA 1 1 PD5 PD 1 1 ENG, P. L. 2 2 D INTERNAL ACRS 6 6 NRR/DET/ECMB 7D 1 1 NRR/DET/ESGB 1 1 NRR/DOEA/OTSB11 1 1 NRR/DST 8E2 1 1 NRR/DST/SELB 7E 1 1 NRR/DST/SICB8H7 1 1 NRR/DST/SRXB 8E 1 1 NUDOCS-ABSTRACT 1 1 0 /M@5 1 0 OGC/HDS1 1 0 EG FILE 01 1 1 RES/DSIR/EIB 1 1 EXTERNAL: NRC PDR 1 1 NSIC D

D D

NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISPS FOR DOCUMENTS YOU DON'T NEED!

TOTAL 'NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 22

WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Bop 968 ~ 3000George Washtngton Way ~ Rtcbland, Wasbfngton 99352-0968 ~ (509)372-5000 April 10, 1992 G02-92-085 Docket No. 50-397 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

WNP-2, OPERATING LICENSE NPF-21 REQUEST FOR AMENDMENT TO TECHNICAL SPECIFICATIONS IN ACCORDANCE WITH GENERIC LETTER 88-01

References:

1) Generic Letter 88-01, "NRC Position on IGSCC in BWR Austenitic Stainless Steel Piping".

2) Letter, G02-89-123, GC Sorensen (SS) to NRC, "Supply System Response to Generic Letter 88-01, Request for Additional Information", dated July 20, 1989

3) Letter, G02-88-164, GC Sorensen (SS) to NRC, "Response to Generic Letter 88-01", dated July 26, 1988

4) Letter, PL Eng (NRC) to GC Sorensen (SS), "Response to GL 88-01, Intergranular Stress Corrosion In Piping (TAC No. 69161)", dated December 28, 1990

5) Letter, G02-92-004, GC Sorensen (SS) to NRC, "Response to NRC SER on Generic Letter 88-01 (TAC No. 69161)", dated January 8, 1992

6) Generic Letter 88-01, Supplement 1, "NRC Position on IGSCC in BWR Austenitic Stainless Steel Piping" In accordance with the Code of Federal Regulations, Title 10, Parts 50.90 and

2. 101, the Supply System hereby submits a request for amendment to the WNP-2 Technical Specifications. Generic Letter 88-01 provides the Staff position concerning implementation of an Inservice Inspection ( ISI) Program for austenitic stainless steel piping susceptible to intergranular stress corrosion cracking (IGSCC). Supplement 1 to the Generic Letter,,issued February 4, 1992, provided some relief"concerning leak"detection instrumentation and surveillances. This

,9204200088 920410

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05000397 P PDR

'age FOR AMENDMENT TO TECHNICAL SPECIFICATIONS Two'E(UEST IN ACCORDANCE WITH GENERIC LETTER 88-01 letter serves to request those changes to the Technical Specifications to assure the sections related to leak detection are in conformance with the Staff position. As discussed in Reference 5, the Supply System will address changes to the Technical Specifications concerning the ISI Program requirements after the refueling outage scheduled for the Spring of 1992. Changes to the following Technical Specifications are being requested:

3.4.3.1 Leakage Detection Systems, ACTION Statement 3.4.3.2 Operational Leakage, LCO and ACTION Statement 4.4.3.2.1.b Operational Leakage, Surveillance Requirements B 3/4.4.3.1 Leakage Detection Systems B 3/4.4.3.2 Operational Leakage The changes to the ACTION Statement and Bases for Leakage Detection Systems assure the capability to quantitatively measure UNIDENTIFIED LEAKAGE is maintained as required by Generic Letter 88-01 and its Supplement 1. This includes the addition of a shutdown requirement in the event that containment sump monitoring instrumentation is inoperable for more than 30 days. The changes to the LCO, ACTION Statement, Surveillance Requirement and the Bases for Operational Leakage, assure that the UNIDENTIFIED LEAKAGE limits are in accordance with those in GL 88-01 or NRC approved alternative measures. The LCO has been changed to limit UNIDENTIFIED LEAKAGE to 2 gpm increase within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> rather than a 2 gpm increase in 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. The Surveillance Requirement for monitoring the primary containment sump flow rate has been changed to require the measurement at least once per shift, not to exceed 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, rather than once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

The Supply System has reviewed the changes per 10 CFR 50.92 and provides the following in support of a finding for no significant hazards consideration.

These changes are being made in accordance with the generic letter issued by the NRC and represent additional restrictions on the operation of WNP-2.

1) The change to the operational leakage program does not involve a significant increase in the probability of an accident previously evaluated because leakage monitoring is not assumed as the initiator of any analyzed event. In addition, the change does not involve a significant increase in the consequences of an accident as the additional shutdown requirement and the increased surveillance requirements for leak detection may facilitate earlier detection of a failure associated with IGSCC.

2) The changes do not create the possibility of a new or different kind of accident from any accident previously evaluated because the proposed changes do not introduce any new mode of plant operation or require any physical modification to the plant.

Page Thr'ee RE(UEST FOR AMENDMENT TO TECHNICAL SPECIFICATIONS IN ACCORDANCE WITH GENERIC LETTER 88-01

3) There is no reduction in a margin of safety due to these changes because the additional shutdown requirement and the additional surveillances have been established to assure the earliest possible detection of problems with or the need of repair or replacement of piping that may be susceptible to failure due to IGSCC. These changes clearly enhance safety and increase margins, by the implementation of the more restrictive LCO, ACTIONS and Surveillance Requirements.

As discussed above, the Supply System considers that this change does not involve a significant hazards consideration, nor is there a potential for significant change in the types or significant increase in the amount of any effluents that may be released offsite. Accordingly, the proposed change meets the eligibility criteria for categorical exclusion set forth in 10CFR 51.22(c)(9) and therefore, per 10CFR 51.22(b), an environmental assessment of the change is not required.

This Technical Specification change has been reviewed and approved by the WNP-2 Plant Operations Committee (POC) and the Supply System Corporate Nuclear Safety Review Board (CNSRB). In accordance with 10CFR 50.91, the State of Washington has been provided a copy of this letter.

Sincerely, G. C.

g,~~~

Sorensen, Manager Regulatory Programs (Hail Drop 280)

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Attachments CC: JB Martin - NRC RV NS Reynolds - Winston 5 Strawn WM Dean - NRC DL Williams - BPA/399 NRC Site Inspector - 901A RG Waldo - EFSEC

STATE OF WASHINGTON)

Subject:

Re uest for Amend to Tech. S ecs.

) In Accordance with GL 88-01 COUNTY OF BENTON )

I. A. G. HOSLER, being duly sworn, subscribe to and say that I am the Manager, WNP-2 Licensing for the WASHINGTON PUBLIC POWER SUPPLY SYSTEM, the applicant herein; that I have the full authority to execute this oath; that I have reviewed the foregoing; and that to the best of my knowledge, information, and belief the statements made in it are true.

DATE Ape..- ~ 1992 A. G. Hosier, Manager WNP-2 Licensing On this date personally appeared before me A. G. HOSLER, to me,known to be the individual who executed the foregoing instrument, and acknowledged that he signed the same as his free act and deed for the uses and purposes herein mentioned.

GIVEN under my hand and seal this ~today of 1992.

No ar Public in and fo the STATE OF WASHINGTON Residing at Kennewick Washin ton Hy Commission Expires A ril 28 1994

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