ML20198B339

Forwards Safety Evaluation Accepting Util 980702 Request for Relief to Employ Alternative Welding Matls of ASME Section XI Code Cases 2142-1 & 2143-1 in Fabrication & Installation of Plant Replacement Steam Generators

ML20198B339
Person / Time
Site:	South Texas
Issue date:	12/15/1998
From:	Hannon J NRC (Affiliation Not Assigned)
To:	Cottle W HOUSTON LIGHTING & POWER CO.
Shared Package
ML20198B342	List: ML20198B339 ML20198B349
References
TAC-MA2250, TAC-MA2251, NUDOCS 9812180143
Download: ML20198B339 (3)

Text

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Mr. Willi!m T. Cottle Decemb::r 15, 1998 President cnd Chief Ex:cutivs Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth, TX 77483

SUBJECT:

RELIEF REQUEST TO USE ASME SECTION XI CODE CASES 2142-1 AND 2143-1 FOR REPLACEMENT STEAM GENERATORS, SOUTH TEXAS PROJECT (STP), UNITS 1 AND 2 (TAC NOS. MA2250 AND MA2251)

Dear Mr. Cottle:

)

By letter dated July 2,1998, STP Nuclear Operating Company (STPNOC) submitted a request for relief to employ the alternative welding materials of ASME Section XI Code Cases 2142-1 and 2143-1 in the fabrication and installation of the STP, Units 1 and 2, replacement steam generators. STPNOC submitted this request under the provisions of 10 CFR 50.55a(a)(3).

The staff has completed its review of the relief request and has determined that the proposed alternative to employ the alternative welding materials of Code Cases 2142-1 and 2143-1 provides an acceptable level of quality and safety. Therefore, the staff concludes that the proposed alternative is authorized pursuant to 10 CFR 50.55a(a)(3)(i). Use of Code Cases 2142-1 and 2143-1 is authorized until such time as the Code Cases are approved by reference in Regulatory Guide (RG) 1.85. At that time, if STPNOC intends to continue to implement these Code Cases, STPNOC is to follow a!! provisions in Code Cases 2142-1 and 2143-1 with limitations issued in RG 1.85, if any.

The staff's Safety Evaluation is enclosed.

Sincerely, ORIGINAL SIGNED BY: J. Hall for 9812180143 981215 John N. Hannon, Director DR ADOCK 05 4e Project Directorate IV-1 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation Docket Nos. 50-498 and 50-499

Enclosure:

As stated cc w/ encl: See next page DISTRIBUTION:

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4 9 , , , g ,o December 15, 1998 Mr. William T. Cottle President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth,TX 77483

SUBJECT:

RELIEF REQUEST TO USE ASME SECTION XI CODE CASES 2142-1 AND 2143-1 FOR REPLACEMENT STEAM GENERATORS, SOUTH TEXAS PROJECT (STP), UNITS 1 AND 2 (TAC NOS. MA2250 AND MA2251)

Dear Mr. Cottle:

By letter dated July 2,1998, STP Nuclear Operating Company (STPNOC) submitted a request for relief to employ the alternative welding materials of ASME Section XI Code Cases 2142-1 and 2143-1 in the fabrication and installation of the STP, Units 1 and 2, replacement steam generators. STPNOC submitted this request under the provisions of 10 CFR 50.55a(a)(3). '

The staff has completed its review of the relief request and has determined that the proposed alternative to employ the alternative welding materials of Code Cases 2142-1 and 2143-1 provides an acceptable level of quality and safety. Therefore, the staff concludes that the proposed alternative is authorized pursuant to 10 CFR 50.55a(a)(3)(i). Use of Code Cases 2142-1 and 2143-1 is authorized until such time as the Code Cases are apploved by reference in Regulatory Guide (RG) 1.85. At that time, if STPNOC intends to continue to implement these Code Cases, STPNOC is to follow all provisions in Code Cases 2142-1 and 2143-1 with limitations issued in RG 1.85,if any.

The staffs Safety Evaluation is enclosed.

Sincerely, ustch ,

-)

John N. Hannon, Director Project Directorate IV-1 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation l Docket Nos. 50-498 and 50-499

Enclosure:

As stated I

i cc w/ encl: See next page

I 4

O Mr. William T. Cottle STP Nuclear Operating Company South Texas, Units 1 & 2 1 cc:

Mr. Cornelius F. O'Keefe . Jack R. Newman, Esq. .

Senior Resident inspector Morgan, Lewis & Bockius U.S. Nuclear Regulatory Commission 1800 M Street, N.W.

P. O. Box 910 Washington, DC 20036-5869 Bay City, TX 77414 Mr. Lawrence E. Martin A. Ramirez/C. M. Canady Vice President, Nuc. Assurance & Licensing

' City of Austin STP Nuclear Operating Company Electric Utility Department P. O. Box 289 721 Barton Springs Road Wadsworth,TX 77483 Austin, TX 78704 Office of the Governor Mr. M. T. Hardt ATTN: John Howard, Director Mr. W. C. Gunst Environmental and Natural City Public Service Board Resources Policy P. O. Box 1771 P. O. Box 12428 San Antonio, TX 78296 l Austin, TX 78711

- Mr. G. E. Vaughn/C. A. Johnson Jon C. Wood Central Power and Light Company Matthews & Branscomb P. O. Box 289 One Alamo Center Mail Code: N5012 106 S. St. Mary's Street, Suite 700 Wadsworth,TX 74483 San Antonio, TX 78205-3692 )i INPO Arthur C. Tate, Director Records Center Division of Compliance & Inspection )

700 Galleria Parkway Bureau of Radiation Control j

' Atlanta, G4 30339-3064 Texas Department of Health j 1100 West 49th Street Regional Administrator, Region IV Austin,TX 78756 i U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Jim Calloway Arlington, TX 76011 Public Utility Commission of Texas Electric Industry Analysis D. G. Tees /R. L. Balcom P. O. Box 13326 Houston Lighting & Power Co. Austin, TX 78711-3326 P. O. Box 1700 Houston,TX 77251

' Judge, Matagorda County .

Matagorda County Courthouse 1700 Seventh Street Bay City, TX 77414