ML20003B711

Third Interim Deficiency Rept Re Stud Welds on Concrete Embedments,Initially Reported on 800731.Less than 0.05% of 369,025 Welds Inspected Are Rejectable.Next Rept Will Be Submitted by 810306

ML20003B711
Person / Time
Site:	South Texas
Issue date:	12/17/1980
From:	Oprea G HOUSTON LIGHTING & POWER CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, ST-HL-AE-589, NUDOCS 8102250282
Download: ML20003B711 (4)

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The Light company n.,_ ue,,-_ m -a,e s_a-a,_ mmu December 17, 1980 ST-HL-AE-589 SFN: V-0530 Mr. Karl Seyfrit Director, Region IV ppdl[t^ ,

Nuclear Regulatory Commission Q N, , (('</,K

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W 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012 gl/

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Dear Mr. Seyfrit:

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South Texas Project /' A Units 1&2 d" d '-

Docket Nos. STN 50-498, STN 50-499 Third Interim Report Concerning Stud Welds on Concrete Embedments Or, July 31, 1980, pursuant to 10CFR50.55(e), Houston Lignting & Power Company notified your office of an item concerning stud welds on concrete embedments. Interim reports were sent to your office on August 28, 1980 and October 8, 1980. In accordance with our interim report commitment, this letter provides information on the present status of this concern.

Data collection is nearly complete. Thus far, of the 369,025 welds that have been inspected, less than 0.05% of this total have been found to be reject-abl e. A statistical evaluation of this condition is being prepared, however, necessary data for this evaluation, such as specific plate configuration and load application, remains to be analyzed.

Since completion of this item is taking longer than anticipated, the next report on this matter will be submitted by March 6,1981.

If there are any questions, please contact Mr. Michael E. Powell at (713) 676-8592.

Very truly yours,

/

( / opwg ExecutivMce President TAP /pjb 810 2 2 5 0 9.S'A

Houston Lighting & Power Company December 17, 1980 ST-HL-AE-589 SFN: V-0530 Page 2 cc: J. H. Goldberg D. G. Barker

-Howard Pyle R. L. Waldrop H. R. Dean

.D. R. Beeth

'J. D. Parsens G. B. Painter L. K. English A. J. Granger R. A. Frazar H. S. Phillips (NRC)

.l. O. Read (Read-Poland,Inc.)

M. D. _ Schwarz (Baker & Botts)

R. Gordon Gooch (Baker &-Botts)

J. R. Newman (Lowenstein, Newman, Reis, Axelrad & Toll)

Director, Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D. C. 20555-I i

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t Houston Lighting & Power Compan} December 17, 1980

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, ST-HL-AE-589 SFN: V-0530 Page 3 1

M. L. Borchelt Executive Vice President

. Central Power & Light Company P. O. Box 2121.

Corpus-Christi, Texas 78403 R. L. Range Central Power S Light Company I' P. O. Box 2121 Corpus Christi,. Texas 78403 R. L. Hancock Director of Electrical Utilities City of Austin P. O.. Box 10S8 Austin, Texas 78767 T. H. Muehlenbeck 3 City of Austin

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P.~0.. Box 1088

-Austin, Texas 78767 J. B. Poston Assistant General Manager of Operations City Public Service Board P. 0.. Box 1771 San Antonio, Texas 78296 A. vonRosenberg City Public Service Board P. 0. Box - 1771

~ San' Antonio, Texas 78296-1

' do'uston Lighting & Power Compan) December 17, 1980 ST-HL-AE-589 SFN: V-0530 Page 4 Charles Bechoefer, Esquire Chairman, Atoric Safety & Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Dr. James C. Lamb, III 313 Woodhaven Road Chapel Hill, North Carolina 27514 Dr. Emmeth A. Luebke Atomic Safety & Licensing Commission U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Citizens for Equitable Utilities c/o Ms.' Peggy Buchorn Route 1, Box 1684 Brazoria, Texas 77422 Pat Coy Citizens Concerned About Nuclear Power 5106 Casa Oro San Antonio,. Texas 77422 Betty Wheeler Hoffman, Steeg & Wheeler 1008 S. Madison Amarillo, Texas Brian E. Berwick Assistant Attorney General for the State of Texas P. O. Box 12548 Caoitol Station Austin, Texas 78711 Bernard M. Bordenick Hearing Attorney Office of the Executive Legal Director ~

U. S. Nuclear Regulatory Commission Washington, D. C. 20555

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