ML20138C498

Summary of 850917 Meeting W/Util in Bethesda,Md Re Visual Insp of Welds Through Paints.Transcript & Viewgraphs Encl

ML20138C498
Person / Time
Site:	Comanche Peak
Issue date:	10/17/1985
From:	Vietticook A NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
To:	NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
Shared Package
ML20137J690	List: ML20137J685 ML20138C498 ML20138C503
References
NUDOCS 8510220440
Download: ML20138C498 (5)

Text

l Y 00T 171985 ,

Docket Nos.: 50-445 .I and 50 446 APPLICANT: Texas Utilities Generating Company (TUGC0)

FACILITY: Comanche Peak Steam Electric Station, Units 1 and 2

SUMMARY

OF MEETING HELD ON SEPTEMBER 17, 1985 -

FOR NRC/TUGC0 TO DISCUSS THE VISUAL INSPECTION OF WELDS THROUGH PAINT.

On September 17, 1985, a public meeting was held between representatives from the NRC and Texas Utilities Generating Company (TUGC0) to discuss the visual inspection of welds through paint. This meeting was. transcribed. Attendees at the meeting and copies of all viewgraphs shown at the meeting are included in the enclosed transcript.

This reinspection of welds is one part of an overall effort by Texas Utilities to determine the adequacy of the construction of Comanche Peak. TUGC0 has divided the plant into items of equipment that have similar or like work processes; and welding was one of those work processes. By letter to V. S.

Noonan (NRC) from W. G. Counsil (TUGC0), dated August 1, 1985, the NRC was advised that the reinspection will be a third party visual weld inspection of completed non-pressure boundary welds and it is TUGC0's intent to conduct this evaluation without the removal of the protective coatings.

The Stone and Webster presentation at the meeting indicated that, TUGC0 would be reinspecting for the following weld attributes: existence, size, undercut, porosity, lack of fusion as indicated by roll over, and cracking. Cracking would only be seen if 'it had cracked after the coating had been applied or if it was a gross crack before painting. TUGC0 stated that past inspection records did not indicate problems with weld attributes related to quality; however, inspection records did indicate problems existed with undersized, and misplaced welds.

The NRC staff position as presented during the meeting, which will appear in Supplemental Safety Evaluation Report No. 12 is that one can visually inspect j through paint for weld attributes such as location, presence, and length, but weld attributes related to quality such as lack of fusion, cracks, porosity, and slag inclusions present problems when using this method.

The NRC staff also emphasized that they do not want to review and/or accept

visual inspections of welds through paint on a generic basis.

l 8510220440 851017 ADOCK 0500 5 Annette Vietti-Cook, Project Manager

! $DR Comanche Peak Project Divisto of Licensing

Enclosure:

Transcript of September 17, 1985 meeting.

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SUMMARY

DISTRIBUTION Docket File NRC Participants NRC PDR L PDR A. Vietti-Cook -

NSIC C.'Early PRC System L. Shao LBf1 Reading File D. Smith Project Manager P. Cortland M. Rushbrook I. Barnes Attorney, OELD S. Hou R. Hartfield* C. Richards OPA* B. D. Liaw S. Burwell -

R. Bachman G. Mizuno OTHERS bec: Applicant & Service List ..

• Caseload Forecast Panel Visits 1

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,o N 1T N Docket Nos.: 50-445 and 50-446 APPLICANT: Texas Utilities Generating Company (TUGCO)

FACILITY: Comanche Peak Steam Electric Station, Units 1 and 2

SUMMARY

OF MEETING HELD ON SEPTENBER 17, 1985 -

FOR NRC/TUGC0 TO DISCUSS THE VISUAL INSPECTION OF WELDS THROUGH PAINT.

On September 17, 1985, a public meeting was held between representatives from the NRC and Texas Utilities Generating Company (TUGCO) to discuss the visual inspection of welds through paint. This meeting was transcribed. Attendees at the meeting and copies of all viewgraphs shown at the meeting are included in the enclosed transcript.

This reinspection of welds is one part of an overall effort by Texas Utilities to determine the adequacy of the construction of Comanche Peak. TUGC0 has divided the plant into items of equipment that have similar or like work processes; and welding was one of those work processes. By letter to V. S.

Noonan (NRC) from W. G. Counsil (TUGCO), dated August 1, 1985, the NRC was advised that the reinspection will be a third party visual weld inspection of completed non-pressure boundary welds and it is TUGCO's intent to conduct this evaluation without the removal of the protective coatings.

The Stone and Webster presentation at the meeting indicated that, TUGC0 would be reinspecting for the following weld attributes: existence, size, undercut, porosity, lack of fusion as indicated by roll over, and cracking. Cracking --

would only be seen if it had cracked after the coating had been applied or if it was a gross crack before painting. TUGC0 stated that past inspection records did not indicate problems with weld attributes related to quality; however, inspection records did indicate problems existed with undersized, and misplaced welds.

The NRC staff position as presented during the meeting, which will appear in Supplemental Safety Evaluation Report No. 12 is that one can visually inspect '

through paint for weld attributes such as location, presence, and length, but weld attributes related to quality such as lack of fusion, cracks, porosity, and slag inclusions present problems when using this method.

The NRC staff also emphasized that they do not want to review and/or accept visual inspections of welds through_ paint on a gen ric basis.

T Q-e:S tO Cx O Annette Vietti-Cook, Project Manager i Comanche Peak Project

• Division of Licensing Enclosere: Transcript of September 17, 1985 meting.

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W. G. Counsil Comanche Peak Steam Electric Station

, Texas Utilities Generating Company Units 1 and 2 cc:

Nicholas S. Reynolds, Esq. Resident Inspector / Comanche Peak Bishop, Liberman, Cook, Nuclear Power Station Purcell & Reynolds c/o U.S. Nuclear Regulatory Commission 1200 Seventeenth Street, NW P. O. Box 38 Washington, D.C. 20036 Glen Rose, Texas 76043 Robert A. Wooldridge, Esq. Regional Administrator, Region IV Worsham, Forsythe, Sampels & U.S. Nuclear Regulatory Commission Wooldridge 611 Ryan Plaza Drive Suite 1000 2001 Bryan Tower, Suite 2500 Arlington, Texas 76011

! Dallas, Texas 75201 Mr. Homer C. Schmidt Larry A. Sinkin Manager - Nuclear Services 3022 Porter Street, NW #304 .

Texas Utilities Generating Company Washington, D.C. 20008 Skyway Tower 400 North Olive Street, L.B. 81 l Dallas, Texas 75201 -

1 Mr. Robert E. Ballard, Jr. Ms. Billie Pirner Garde 3 Director of Projects Citizens Clinic Director 1 Gibbs and Hill, Inc. Government Accountability Project 11 Pen Plaza 1901 Que Street, NW New York, New York 10001 Washington, D.C. 20009

! David R. Pigott, Esq.

Mr. A. T. Parker Orrick, Herrington & Sutcliffe Westinghouse Electric Corporation 600 Montgomery Street P. O. Box 355 San Francisco, California 94111 Pittsburgh, Pennsylvania 15230

Anthony Z. Roisman, Esq.

Renea Hicks, Esq. Trial Lawyers for Public Justice Assistant Attorney General 2000 P. Street NW

,,g. Environmental Protection Division Suite 611 P. O. Box 12548, Capitol Station Washington, D.C. 20036

Austin, Texas 78711 Nancy E. Wiegers Mrs. Juanita Ellis, President i

Spiegel & McDiarmed Citizens Association for Sound Energy 1350 New York Avenue, NW -

1426 South Polk Washington, D.C. 20005-4798 Dallas, Texas 75224

~

Ms. Nancy H. Williams l CYGNA 101 California Street San Francisco, California 94111 -

I

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5 i

i Texas Utilities Electric Company i Comanche Peak Electric Station Units 1 and 2 cc:

Resident Inspector - Comanche Peak c/o U.S. Nuclear Regulatory Commission P. O. Box 1029 Granbury Texas 76048 Mr. John W. Beck Manager - Licensing Texas Utilities Electric Company Skyway Tower

. 400 N. Olive Street, L8#81 Dallas, Texas '75201 Mr. Jack Redding Licensing

• Texas Utilities Generating Company .

4901 Fairmont Avenue Bethesda, Maryland 20814 s William A. Burchette. Esq.

Heron, Burchette, Ruckert & Rothwell Suite 700 1025 Thomas Jefferson Street, NW Washington, D.C. 20007

~

Mr. James McGaughy Southern Engineering Company of Georgia

~1800 Peachtree, Street, NW Atlanta, Georgia 30367-8301

~ Administrative Judge Peter B. Bloch ~~

U.S. Nuclear Regulatory Commission i

Washington, DC 20555 I~ Herbert Grossman Alternate Chairman ASLB Panel U.S. Nuclear Regulatory Commission Washington, DC 20555 ,

4

'Dr. Kenneth A. McCollom, Dean Division of Engineering, Architecture and Technology -

l Oklahoma State University z'

Stillwater Oklahoma 74074 Dr. Walter H. Jordan 881 W. Outer Drive^

i Oak Ridge, Tennessee 37830

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