ML18033A835

Provides Addl Info as Discussed in 890628 Telcon W/Nrc Re 890214 Tech Spec Change 265T Concerning Control Room Habitability.Accidents Considered in TVA Calculation ND-Q0090-88-11 Bounded by LOCA for Control Room Operator

ML18033A835
Person / Time
Site:	Browns Ferry
Issue date:	07/14/1989
From:	Michael Ray TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8907180207
Download: ML18033A835 (6)

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ACCESSION NBR:8907180207 DOC.DATE: 89/07/14 NOTARIZED: YES DOCKET g FACIL:50-259 Browns ',Ferry Nuclear Power Station, Unit, 1, Tennessee 05000259 50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 05000260 50-296 Browns"Jerry Nuclear Power Station, Unit 3;; .Tennessee 05000296 AUTH. NAME AUTHOR AFFILIATION RAY,M.Z.

Tennessee Valley Authority R RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

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SUBJECT:

Provides addi info re Tech Spec 265T re control room habitability,per 890628 telcon.

DISTRIBUTION,,CODE: AOOID COPIES RECEIVED:LTR / -ENCL .0 SIZE:.--,

TITLE:,"OR,Subm'ittal:1 Gen'eral'istribution'OTES:1 Copy each to: B.Wilson,D.M.Crutchfield,B.D.Liaw,S.Black 05000259 R.Pierson, 1 Copy each-to: S.Black,D.M.Crutchfield,B.D.Liaw, 05000260 R.Pierson,B.Wilson 1 Copy each to: S. Black,D.M.Crutchfield,B.D.Liaw, 05000296 R.Pierson,B.Wilson RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR"ENCL

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~ 0 TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 5N 157B Lookout Place JUL $ 4 1999 TVA-BFN-TS-265T SUPPLEMENT 1 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington D.C..20555 Gentlemen:

In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260 1

50-296 BROWNS FERRY NUCLEAR PLANT (BFN) TVA TECHNICAL SPECIFICATION (TS) NO. 265T CONTROL ROOM HABITABILITY

References:

1. Telecon between Messrs. J. Watt (NRC), S. R. Frost (TVA),

J. Kamphouse (TVA), and P. Moore (TVA), dated June 28, 1989.

2. TVA letter, BFN TS 265T, to NRC dated February 14, 1989.

3. TVA calculation ND-Q0090-88-11 "Calculation of Safety Limits for the Control Room Air Intake Monitors."

4. TVA calculation ND-Q0999-880158 " Control Room Operator Dose as a Function of Time Following a LOCA or FHA."

The purpose of this letter is to provide additional information as discussed in Reference 1 for BFN TS 265T, Control Room Habitability, which was initially submitted to NRC on February 14, 1989.

The initial submittal (Reference 2) requested to allow operation of'FN Unit 2 through cycle 6 with the Control Room Emergency Ventilation System (CREVS) not meeting its. design basis of zero inleakage through the ductwork as stated in the.BFN Final Safety Analysis Report (FSAR).

During the telecon (Reference 1), NRC requested ';that BFN provide additional information concerning control room operator andtechnical support center (TSC) personnel doses as related to 10 CFR 50, Appendix A, GDC 19 following a loss of coolant accident (LOCA), rod drop accident, and main steam line break.

BFN determined that for the accidents considered in reference 3, (e.g., LOCA, Rod Drop, and Main Steam Line Break) the control room operator and TSC doses are bounded by the LOCA.

8907lS0207 S5'0714 PDR ADOCK 05000259 P PDC gynl An Equal Opportunity Employer i]a

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U.S. Nuclear Regulatory Commission JUL i.4 1989 Reference 4 determined that the doses to the control room operators and TSC personnel are within the 10 CFR 50, Appendix A, GDC 19 limits. These doses were calculated to be 0.2 rem gamma whole body, 2.0 rem beta, and 6.2 rem thyroid.

The information contained in this letter does not change or alter any of the proposed TSs as initially submitted. This submittal only provides additional information and documentation supporting that submittal. Then if you have any questions, please telephone Patrick P. Carier at (205) 729-3570.

Very truly yours, TENNESSEE VALLEY AUTHORITY M.~ J. Ray, Mana er

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Licensing Project Management Subscribe "a@I'.sworn o b ore me on is . ~~day o 89.

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• U,S, Nuclear Regulatory Commission JUL 14 1989 cc: Ms. S. C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockvi lie, Maryland 20852 Mr. Charles R. Christopher, Chairman Limestone County Commission P.O. Box 188 Athens, Alabama 35611 Dr. C. E. Fox State Health Officer State Department of Public Health State Office Building Montgomery, Alabama 36194 Mr. J. E. Jones General Electric Company No. 1 Union Square 808 Krystal Building Chattanooga, Tennessee 37402 Mr. B. A. Wilson, Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 NRC Resident Inspector Brogans Ferry Nuclear Plant Route 12, Box 637 Athens, Alabama 35609-2000 American Nuclear Insurers Attention: Librarian The Exchange, Suite 245 270 Farmington Avenue Farmington, Connecticut 06032