ML17290B124

Clarifies Intent of 931220 Request for Amend to TS 3/4.6.1.8, Drywell & Suppression Chamber Purge Sys & Suppl by 940325 Ltr

ML17290B124
Person / Time
Site:	Columbia
Issue date:	04/25/1994
From:	Parrish J WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GO2-94-094, GO2-94-94, NUDOCS 9405020370
Download: ML17290B124 (6)

Text

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ACCESSION NBR:9405020370 DOC.DATE: 94/04/25 NOTARIZED: NO DOCKET g FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 R AUTH. NAME AUTHOR AFFILIATION PARRISH,J.V.

Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION I Document Control Branch (Document Control Desk)

SUBJECT:

Clarifies intent of 931220 request for amend to TS D 3/4.6.1.8, "Drywell & Suppression Chamber Purge Sys" 6 suppl by 940325 ltr.

DISTR1BUTION CODE: AOOID TITLE:. OR COPIES RECEIVED:LTR Submittal: General Distribution J ENCL g SIZE:

NOTES

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RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL D PDIV-3 LA PDIV-3 PD CLIFFORD,J D

INTERNAL: ACRS NRR/DE/EELB NRR/DORS/OTS B NRR/DRCH/HICB NRR/DRPW NRR/DSSA/SPLB NRR/DSSA/SRXB NUDOCS-ABSTRACT OC LQ3CB OGC/HDS1 LE 01 EXTERNAL: NRC PDR NSIC D

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NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDI TOTAL NUMBER OF COPIES REQUIRED: LTTR 22 ENCL ~8

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WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George Washington Way ~ Richland, Washington 993S2-0968 ~ (S09) 372-SOOO April 25, 1994 G02-94-094 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 AMENDMENTTO TECHNICAL SPECIFICATION 3/4.6.1.8, DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM - SUPPLEMENTAL INFORMATION

Reference:

1) Letter G02-93-296, dated December 20, 1993, JV Parrish (SS) to USNRC, "Request for Amendment to Technical Specification 3/4.6.1.8, Drywell and Suppression Chamber Purge System"

2) Letter G02-94-069, dated March 25, 1994, JV Parrish (SS) to USNRC, "Request for Amendment to Technical Specification 3/4.6.1.8, Drywell and Suppression Chamber Purge System - Supplemental Information" The purpose of this letter is to clarify the intent of the Supply System's request for amendment to Technical Specification 3/4.6.1.8, Drywell and Suppression Chamber Purge System, which was submitted by Reference 1 and supplemented by Reference 2. Technical Specification Table 3.6.3-1 identifies a maximum isolation time of four (4) seconds for the Containment Purge Exhaust and Supply valves. Reference 1, in the technical background and "No Significant Hazards Consideration" discussion, identifies a maximum isolation time of five (5) seconds.

This is a typographical error. Technical Specification maximum isolation time for the Containment Purge Exhaust and Supply valves is not being modified by References 1 or 2.

Containment Purge Supply and Exhaust valves CEP-V-1A & -2A, CSP-V-3 & -4 have been designed, procured, purchased, and qualified to meet the 4 second maximum isolation time.

0-"-0034 9405020370 940425 PDR ADOCK 05000397

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Page Two REQUEST FOR AMENDMENT TO TECHNICAL SPECIFICATION 3/4.6.1.8, DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM-SUPPLEMENTAL INFORMATION The design and procurement specifications define functional and performance requirements including valve closure, from the full open position, against the design pressure of 45 psig within 4 seconds. The purchase order specifies that butterfly valves are to be furnished in strict accordance to the Supply System procurement specification. The valves and pneumatic operators have been seismically and environmentally qualified to meet the intended safety function when subjected to applicable dynamic and design basis accident profile conditions. Upon receipt at WNP-2, the Supply System receipt inspection will ensure that the valves and pneumatic operators have been submitted in accordance with the purchase order. The assembly will also be functionally tested following installation.

Should you have any questions or desire additional information regarding this matter, please call me or Herbert E. Kook at (509) 377-4278.

Sincerely,

, V. Parrish (Mail Drop 1023)

Assistant Managing Director, Operations JVP/LCF/bk CC: LJ Callan - NRC RIV KE Perkins, Jr. - NRC RIV, Walnut Creek Field Office NS Reynolds - Winston & Strawn JW Clifford - NRC DL Williams - BPA/399 NRC Sr. Resident Inspector - 927N

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