ML20148C278

Forwards Safety Evaluation Supporting 850816,860606 & 871117 Relief Requests from Testing Pumps & Valves,Asme Boiler & Pressure Vessel Code,Section XI & Util 820303 Inservice Testing Program.Supportive Technical Evaluation Rept Encl

ML20148C278
Person / Time
Site:	Sequoyah
Issue date:	01/19/1988
From:	Zech G NRC OFFICE OF SPECIAL PROJECTS
To:	White S TENNESSEE VALLEY AUTHORITY
Shared Package
ML20147C326	List: ML20147C323 ML20148C278 ML20148C449
References
TAC-61835, TAC-61836, NUDOCS 8801250154
Download: ML20148C278 (5)

Text

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UNITED STATES 3g I ;.

NUCLEAR REGULATORY COMMISSION g WASHINGTON, D. C. 20555 January 19, 1988 Occket Nos. 50-327/328 Mr. S. A. White Manager of Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

REQUEST FOR PELIEF FROM ASME BOILER AND PRESSURE VESSEL CODE.

SECTION XI, INSERVICE TESTING PROGRAtt (TAC 61835,61836)

Re: Sequoyah Nuclear Plant, Units 1 and 2 By letter dateo March 3, 1982, Tennessee Valley Authority (TVA) submitted an Inservice Testing (IST) program for the Sequcyah Nuclear Plant Units 1 and 2.

The IST program for Sequoyah was revised in submitt(1s dateo November 4, 1982, April 16, 1984 August 16, 1985, June 6, 1986, November 17, 1986 December 12, t 1986, July 2,1987, August 14, 1987 and Noverber 17, 1987. In the above letters, you requested relief from certain American Society of Pechanical Engineers (ASME) Boiler and Pressure Vessel Code Secticn XI testing require-ments for specific pumps and valves in the Sequoyah, Units 1 and 2 IST program.

The staff issued its evaluation of the first three submittals dated March 3 and Nosember 4, 1982 and April 16, 1984, in its Safety Evaluation (SE) dated April 5,1985. The staff issued an adoitional SE dated October 23, 1987 which addressed 21 relief requests needed for the restart of Secuoyah, Unit 2 These 21 relief requests were submitted in letters dated August 16, 1985, l June 6, 1986 November 17, 1986, Cecember 12,1986, July 2,1987, and i August 14, 1987. The enclosed SE provides the staff's evaluation of three '

relief recuests identified in the August 16, 1985 cnd Jure 6, 1986 submittals, and one relief request which was submitted by letter dated November 17, 1987 in ,

response to an NRC Inteqrated Design inspection finding and identified by TVA as needing resolution prior to restart of Sequoyah Unit 2 In eddition, a revision to a relief request previously reviewed in the stef f's October 23, 1967 SE is addressed.

The staff has reviewed the five relief requests and finds them acceptable. The basis for our conclusions is provided in the enclosed staff's SE and the 8801250154 080119 7 DR ADOCK 050

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attached Technical Evaluation Report (TER) provided by cur contractor, Oak Ricge National Laboratory. The staff's SE concludes that the code testing requirements are impractical to perform and has determined, pursuant to 10 CFR 50.55a(a)(3)(1), that the proposed alternativcs to the described rec,uirements will provide an acceptable level of cuality and safety. The f.taff also concludes that granting relief where the code requirements arc impractical is authorized by law and will not endarger life or property, or the comnon defense ar.d security and is otherwise in the public interest considcring the burden that could result upon TVA if the Code recuirements were imposed upon Sequoyah ?!uclear Plant, Units 1 ano 2. Accordinoly, pursuant to 10 CFR 50.5Ea(g)(6)(i) of the Commission's regulations, TVA is grantnd the rcouest-ed relief, as documented in the enclosed staff SE, from the Code repair requirements for certain pumps and valves in the IST program. This ccmpletes the staff's review of the Sequoyah, l' nits 1 and 2 IST progran.

Sincerely.

h. ,:c: u D, 8 f 'c l < -

~

Gary G' 2ech, Assistant Director for Projectt TVA Projects Division Office of Special Projects

Enclosures:

As stated cc w/ enclosures:

See next page r.-- - , .-- ,

+ - , , - - . - - - , . ,

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attached Technical Evaluation Report (TER) provided by our contractor, Oak Ridge National Laboratory. The staff's SE concludes that the code testing requirements are impractical to perform and has determined, pursuant to 10 CFR 50.55a(a)(3)(1), that the proposed alternatives to the described requirements will provide an acceptable level of quality and safety. The staff also concludes that granting relief where the code requirements are impractical is authorized by law and will not endanger life or property, or the comon defense and security and is otherwise in the public interest considering the burden that could result upon TVA if the Code requirements were imposed upon Sequoyah Nuclear Plant, Units 1 and 2. Accordingly, pursuant to 10 CFR 50.55a(g)(6)(1) of the Comission's regulations, TVA is granted the requested relief, as docurrented in the enclosed staff SE, from the Code repair requirements for certain pumps and valves in the IST program. This completes 4 the staff's review of the Sequoyah, Units 1 and 2 IST program.

Sincerely.

Original Signed By Gary G. Zech Assistant Director for Projects TVA Projects Division Office of Special Projects

Enclosures:

As stated cc w/ enclosures:

See next page Distribution i Docket File. T. Rotella l NRC PDR E. McKenna  !

Local PDP J. Donohew Projects Reading M. Fielos S. Ebneter/J. Axelrad OGC-Bethesda S. Richardson J. Rutberg G. Zech F. Miraglia B. D. Liaw E. Jordan K. Barr J. Partlow C. Jamerson ACRS(10)

J. Kelly TVA-Bethesda T. Rotella J. Lombardo SON Rdg. File

• SEE PREVIOUS CONCURRENCE y' OSP:TVA+ OSP:TVA* OGC-Bethesda* /TVA: AD/P CJamersen JKelly:as MYoung GGZech 1/14/88 1/14/E8 1/15/88 1/pV88

attached Technical Evaluation Report (TER) provided by our contractor. Oak Ridge National Laboratory. The staff's SE concludes that the code testing requirements are impractical to perform and has detennined that the proposed )

alternatives to the described recuirements will provide an acceptable level of ,

quality and safety. The staff also concludes that grcnting relief where the code requirements are impractical is authorized by law and will not endanger life or property, or the comon defense and security and is otherwise in the public interest considering the burden that could result upon TVA if the Code requirements were imposed upon Sequoyah Nuclear Plant, Units 1 and 2.

Accordingly, pursuant to 10 CFR 50.55a(g)(6)(1) of the Comission's regulations.

TVA is granted the requested relief, as documented in the enclosed staff SE, from the Code repair requirements for certain pumps and valves in the IST l program. This corapletes the staff's review of the Sequoyah, Units 1 and 2 l IST program.

Sincerely.

Original Signed by Gary G. Zech, Assistant Director for Projects TVA Projects Division Office of Special Projects

Enclosures:

As stated cc w/ enclosures:

See next page Dis tributio_n Docket File ~ T. Rotella NRC PDR E. McKenna Local PDR J. Donohew l Projects Reading M. Fields S. Ebneter/J. Axelrad OGC-Bethesda S. Richardson J. Rutberg i

G. Zech F. liiraglia B. D. Liaw E. Jordan K. Barr J. Partlow C. Janerson ACRS(10)

J. Kelly TVA-Bethesda T. Rotella J. Lorbardo SON Rdg. File k l@

• OGC-Beltesdaf TVA:AD/P 5 l SPg OSP l CJarerson JK y:as li r.<. u GGZech 1/14/88 1/l /88 1/ s/88 1/ /88 i

Mr. S. A. White Tennessee Valley Authority Sequoyah Nuclear Plant cc:

General Counsel Regional Administrator, Pegion 11 Tennessee Valley Authority U.S. Nuc1 car Regulatory Commission 400 West Summit Hill Crive 101 Marietta Street, N.W. 2 E11 B33 Atlanta, Georgia 30323 Knoxville, Tennessee 37902 Resident inspector /Sequcyah hP Mr. R. L. Gridley c/o U.S. Nuclear Regulatory Commission Tennessee Valley Authority 2600 Igou Ferry Poad SN 1578 Lookout Place Soddy Daisy, Tennessee 37379 Chattanooga, Tennessee 37402-2801 Nr. Richard King Mr. H. L. Abercrombie c/o U.S. GAO Tennessee Valley Authority 1111 Merth Shore Drive Sequoyah Nuclear Plant Suite 225, Box 194 P.O. Box 2000 Knoxville, Tennessee 37919 Soddy Daisy, Tennessee 37379 Tennessee Department of Mr. H. R. Harding Public Health Tennessee Valley Authority ATTN: Director, Bureau of 1 Sequoyah fuelear Plant Environmental Health Services l P.O. Box 2000 Cordell Hull Building Soddy Daisy, Tennessee 37379 hashville, Tennessee 37219  !

Mr. D. L. Williams Mr. Michael H. Mobley, Director Tennessee Valley Authority Divisien of Radiological Health 400 West Surmit Hill Drive T.E.R.P.A. Building W10 BE5 150 9th Avenue North Knoxville, Tennessee 37902 Nashville, Tennessee 37203 County Judge Dr. Henry Myers, Science Advisor Hamilton Ccunty Courtheuse Conmittee on Inttrior Chattarcoga, Tennessee 37402 r.nd Insular Affairs U.S. House of Representatives Washirgton, D.C. 20515 l

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