ML17275B036

Final Deficiency Rept Re Thermite Welding on Buried Standby Svc Water Pipe,Initially Reported on 801222.No Adverse Effect on Plant Operation.Issue Determined Not Reportable Per 10CFR50.55(e)

ML17275B036
Person / Time
Site:	Columbia
Issue date:	05/20/1981
From:	Matlock R WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, GO2-81-112, NUDOCS 8105270325
Download: ML17275B036 (4)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DOC ~ DATE: 81/05/20 NOTARIZED: NO i ACCESSION NBR:8105270325 DOCKET

/ FACIL:50-397 WPPSS Nuclear ProjectF Unit 2F Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION t

MATLOCKiR,G, Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION ENGELKENFR.H. Region 5F San FranciscoF Office'of the Director

SUBJECT:

Final defiency re pt for potential l y r epor table item rel thermite welding on buried standby svc water pipeiinitially r epor ted on 80122 2 'o adverse affect on plant operation.

Issue determined not reportable per 10CFR50 55(e) ~ ~

DISTRIBUTION CODE: B019S COPIES RECEIVED:LTR TITLE". Construction Def ici ency Report>> (10CFR50 ~ 55E)

~ ENCL SIZE NOTES:PM: 2 copies of al l material.1 cy:BWR-LRG PM(L,RIB) 05000397 RECIPIENT COPIES COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: A/D LI CENSNG 04 RUSHBROOKFM ~ 06 1'ECIPIENT LIC BR 02 BC 05 AULUCKFR, 07 INTERNAL: ASLBP/J HARD 1 D/DIR'UM FAC15 1 EDO 1l STAFF .19 1 EQUIP QUAL BR11 1 HYD/GEO BR 22 1 I8E 09 1 IE/EES 1 LIC QUAL BR 12 1 MPA 20 1 NRC PDR 02 1 OEI.D 21 1 P REV 13 1 QA BR 14 1 EG FIL 01 1 STANDRDS DEV 21 EXTERNAL; ACRS 16'8 16 1 LPDR 03 NSIC 1 Ne (8 19EI 0

TOTAL NUMBER OF COPIES REQUIRED: LTTR ENCL

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Washington Public Power Supply System P.O. Box968 3000George Washington Way Richland, Washington 99352 (509) 372-5000 Docket No. 50-397 May 20, 1981 CPPR-93 G02-81-112 Nuclear Regulatory Commission Region V Suite 202, Walnut Creek Plaza 1990 North California Blvd.

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'R 6 l9 Walnut Creek, California 94596 To U.S. gg~AR tXgl coMMlssc~

Attention: Mr. R. H. Engelken, Director Gentlemen:

Subject:

SUPPLY SYSTEM NUCLEAR PROJECT NO. 2 POTENTIALLY REPORTABLE DEFICIENCY - 10CFR50.55(e)

THERMITE WELDING ON BURIED STANDBY SERVICE WATER (SW) PIPE Your staff was notified by telephone on December 22, 1980 and provided an interim report on January 22, 1981, of a "Potentially Reportable" 10CFR50.55(e} condition regarding the use of thermite welding to attach the cathodic protection pigtails to ASME piping.

Our evaluation of this condition has concluded that thermite welding of the cathodic protection pigtails directly to the pipe did not decrease the tensile or yield strength of the pipe. The use of thermite welding does not violate any ASME Code requirements, therefore, ther e is no adverse condition which would affect the safe operation of this plant.

This condition is not reportable under the provisions of 10CFR50.55(e).

Very truly yours, R G. Matlock RGM/RPS/ib Program Director, WNP-2 cc: WS Chin - BPA ND Lewis - EFSEC, Olympia RE Naith - B&R, NY

-'V..-Stel.l 0-=NRC~

AD Toth - NRC Resident Inspector JJ Verderber - B&R, NY B. Wood WNP-2 Files NUS Corporation ol f fc SX 0527P

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