ML20034A239

Forwards Request for Addl Info to Continue Review of 890106 & 0531 Responses to Generic Ltr 88-11 Re Radiation Embrittlement of Reactor Vessel Matls.Info Requested within 30 Days

ML20034A239
Person / Time
Site:	Calvert Cliffs
Issue date:	04/17/1990
From:	Mcdonald D Office of Nuclear Reactor Regulation
To:	Creel G BALTIMORE GAS & ELECTRIC CO.
References
GL-88-11, TAC-71475, TAC-71476, NUDOCS 9004200512
Download: ML20034A239 (4)

Text

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AprilL 17, 1990 Docket Nos. 50-317 Distribution:

and 50-318

$coctetluewn ACRS(10)

NRC/ Local PDRs Plant File-

i PDI-1 Rdg' JLinville SVarga BElliot BBoger JTsao i

Mr. G. C. Creel RACapra EJordan Vice President - Nuclear Energy CVogan OGC.

Baltimore Gas and Electric Company DMcDonald Calvert Cliffs Nuclear Power Plant Md Rts 2 & 4 P. O. Box 1535 Lusby, Maryland 20657

SUBJECT:

REQUEST FOR ADDITIONAL-INFORMATI0H - PROPOSED' TECHNICAL SPECIFICATION l

AMENDMENTS IN RESPONSE TO GENERIC LETTER-88 !

REFERENCE:

TACNumbers71475(Unit 1)and71476(Unit ~2)

By ) letters dated January 6 and May(GL 88-11 "NRC Position on. Radiation Embrittlem 31, 1989 you responded to Generic letter Materials and Its Impact on Plant Operations." Your response indicated that the Technical. Specification amendments would be requested and plant-specific

. low temperature over-pressure protection.(LTOP) analysis provided..Your letter dated October 27, 1989, requested the amendments and provided'the LTOP

- plant-specific analysis, i

The NRC staff has completed:its initial review of your. request and has.

determined that additional information.is needed. Please provide.the information requested in the enclosure to this' letter within 30 days.

This request for information affects fewer than ten respondents; therefore, OMB-clearance is not required under Public Law 96-511..

Sincerely, Original signed by David'E. LaBarge for Daniel G. Mcdonald, Senior' Project Manager Project Directorate I-1 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See next page PDI-1 g'

PDI-1 PDI-1 k

b DMcDonald.rse MACapa 1CVogan

'4/y/90 4/ j7 /90 4// 7 /90 DOCUMENT'NAME: MEM0 TO CREEL 71475/71476 gustsE4h1-D Fo (

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UNITED STATES -

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gi-NUCLEAR REGULATORY COMMISSION:

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i WASHINGTON, D, C. 2C355, I

p April 17,.1990

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Docket Nos. 50-317 I

and 50-318

-Mr. G. C. Creel.

Vice. President - Nuclear Energy i

Baltimore Gas and Electric Company Calvert Cliffs. Nuclear Power Plant Md Rts 2 & 4 -

-P. O. Box 1535 Lusby, Maryland 20657

SUBJECT:

RE0 VEST-FOR ADDITIONAL INFORMATION - PROPOSED TECHNICAL SPECIFICATION-AMENDMENTS'IN RESPONSE TO GENERIC LETTER 88-11

REFERENCE:

TAC Numbers 71475 (Unit 1) and 71476 (Unit 2)

By letters-dated January 6 and May 31,1989, you responded to. Generic Letter -

(GL) 88-11. "NRC Position on. Radiation Embrittlement of Reactor Vessel D

Materials and Its impact on Plant Operations." Your, response' indicated that'

-the Technical Specification amendments would-be' requested and plant-specific low temperature over-pressure protection-(LTOP) analysis. provided. Y%r letter dated October 27, 1989, requested the amendments and providea.the LTOP.

plant-specific analysis.

The NRC staff has completed its initial review of your request and-has-determined that additional information is~needed. Please provide the

..t information requested in the enclosure to-this letter within 30. days, This request for information affects fewer than ten respondents; therefore, OMB clearance is not required under Public Law 96-511.

Sincerely,

~

r Daniel G. Mcdonald, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See_next page

= -

Mr. G. C. Creel

)

Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant cc:

Mr.. William T. Bowen, President Mr. Joseph H. Walter Calvert County Board of Engineering Division Commissioners Public Service Commission of Maryland-i Prince Frederick, Maryland 20678 American Building 231 E. Baltimore Street Baltimore, Maryland _ 21202-3486 D. A, Brune, Esq.

General Counsel Baltimore Gas and Electric Company Ms. Kirsten A. Burger, Esq.

P. O. Box 1475-Maryland People's' Counsel Baltimore, Maryland 21203 American Building, 9th Floor 231 E. Baltimore Street Mr. Jay E. Silberg, Esq..

Baltimore, Maryland 21202 Shaw, Pittman', Potts and Trowbridge 2300 N Street, NW Ms. Patricia Birnie Washington, DC 20037 Co-Director Maryland Safe Energy Coalition P. 0.. Box 902 Ms. G. L. Adams, Licensing Columbia, Maryland 21044 Calvert Cliffs Nuclear Power Plant sy Mary and b6 i

Resident Inspector c/o U.S. Nuclear Regulatory Commission P. O. Box 437 Lusby, Maryland 20657 Mr. Thomas Magette Administrator - Nuclear Evaluations Department of Natural Resources 580 Taylor Avenue Tawes State Office Building PPER B3 i

Annapolis, Maryland 21401 Regional Administrator, Region i U.S. Nuclear Regulatory Comission 475 Allendale Road

-King of Prussia, Pennsylvania 19406 I

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ENCLOSURE-

' REQUEST FOR ADDITIONAL INFORMATION BALTIMORE GAS AND ELECTRIC COMPANY CALVERT CLIFFS HilCLEAR POWER PLANT DOCKET NOS. 50-317 AND 50-318~

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1.

' Verify that nil-ductility transition reference temperature (RTNOT) for

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reactor vessel closure flange is -20'F for Unit 1 and -10'F for Unit 2.

?..

Provide the unirradiated' upper shelf Charpy impact' energy for welds 2-203A,-

R, and C in linit -1; and welds 2-203A, B, and C in-Unit 2.-;

3.

-Verify.that the Pressure-temperature limit curves;for Unit'2 in the October 27, 1989 submittal will be;used in the Tech Spec change. The curves are effective for 16 EFPY.

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