ML18033A997

Responds to 890912 Ltr Re 890928 Performance Audit Insp of NPDES Permit.Discharge Piping Buried in Concrete Which Makes Retrofitting for Alternative Flow Measurement Instrumentation Impractical

ML18033A997
Person / Time
Site:	Browns Ferry
Issue date:	10/19/1989
From:	Schmierbach M TENNESSEE VALLEY AUTHORITY
To:	Piznar T ALABAMA, STATE OF
References
NUDOCS 8910310033
Download: ML18033A997 (8)

Text

ACCELERATED D TIuBUTION DEMONS TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:8910310033 DOC.DATE: 89/10/19 NOTARIZED:

NO FACIL:50-259 Browns Ferry Nuclear Power Station, Unit 1, Tennessee 50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 50-296 Browns Ferry Nuclear Power Station, Unit 3, Tennessee AUTH.NAME AUTHOR AFFILIATION SCHMIERBACH,M.

Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION PIZNAR,T.G.

Alabama, State of

SUBJECT:

Responds to 890912 ltr re 890928 performance audit insp at plant.DOCKET 05000259 05000260 05000296 D 05000259 05000260 05000296 DISTRIBUTION CODE: C001D COPIES RECEIVED:LTR ENCL SIZE: S TITLE: Licensing Submittal:

Environmental Rept Amdt 6 Related Correspondence NOTES:1 Copy each to: B.Wilson,D.M.Crutchfield,B.D.Liaw,S.Black R.Pierson, 1 Copy each to: S.Black,D.M.Crutchfield,B.D.Liaw, R.Pierson,B.Wilson 1 Copy each to: S.Black,D.M.Crutchfield,B.D.Liaw, R.Pierson,B.Wilson RECIPIENT ID CODE/NAME LA GEARS,G INTERNAL: ACRS NRR/DEST/SGB 8D NUDOCS-ABSTRACT OGC/HDS2 RGN2 DRSS/RPB EXTERNAL EGGG S IMPSON p F NRC PDR NOTES: COPIES LTTR ENCL 3 3 1 1 6 6 1 1 1 1 1 0 1 1 2 2 1 1 RECIPIENT ID CODE/NAME PD AEOD/DSP/TPAB NRR/DREP/RPB 10 O~E REG FILE 01 LPDR NSIC COPIES LTTR ENCL 1 1 1 1 2 2 1 0 1 1 1 1 1 1 R, D NOTE TO ALL"RIDS" RECIPIENTS D PLEASE HELP US TO REDUCE WAS'ONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 30 ENCL 28 l A~'

TENNESSEE VALLEY AUTHORITY DCT 19 meS Ns.Treena G.Piznar Environmental Engineer Industrial Branch Water Division Alabama Department of Fnvironmental Management 1751 Federal Drive Montgomery, Alabama 36130

Dear Nrs.Piznar:

TFHHESSEE VALLEY AUTHORITY-BROWHS FERRY HUCLEAR PLANT (BFH)-NATIONAL POLLUTANT DISCHARGE ELINIHATIOH SYSTEN PERMIT HO.AL0022080-PERFORNAHCE AUDIT IHSPECTIOH (PAI)

REFERENCE:

LETTER, TREEHA G.PIZHAR TO N.PAUL SCHNIERBACH, SEPTEMBER 12, 1989 This is in response to the referenced letter regarding the June 28 PAI I conducted at BFH by your st'aff.Enclosed is our response to items (1)and (2)of the, referenced letter.If you have questions or need additional information, please call Abraham H.Loudermilk, Jr., at (615)632-6656 in Knoxville, Tennessee.

Sincerely, N.aul chmierbach, Nanager Environmental l}uality cc: Nr.Bruce R.Barrett, Director Water Nanagement Division U.S.Environmenta'I Protection Agency, Region IV 345 Courtland Street, HE.Atlanta, Georgia 30365 Ns.S.C.Black, Assistant Director for Projects TVA Projects Division United States Nuclear Regulatory Commission One White Flint, North 11555 Rockvi lie Pike Rockville, Maryland 20852 Continued on page, 2~a910310033 S92029 9 PDR ADOCK 05000259 pDC,r An Equa~pPportunlty EmPloyer Q00I J~~a&<sa g'L Ns.Treena G.Piznar OCT 19 1989 cc: Hr.F.R.NcCoy, Assistant Director for Inspection Programs TYA Projects Division Office of Special Projects United States Nuclear Regulatory Commission Region II 101 Marietta Street, HW.Suite 2900 Atlanta, Georgia 30323.~S~iKle.a~eguj.atty Commi ssion Attention:

Document Control Desk Washington, D.C.20555

$0 4 l k ENCLOSURE TENNESSEE VALLEY AUTHORITY RESPONSE PERFORHANCE AUDIT INSPECflON REPORT OF BROMNS FERRY NUCLEAR PLANT (BFH)Item I Item number (1)of your September 12 letter concerned flow'measurement alternatives for DSH 103 and DSN 104.Our investigation of flow measurement capabilities at these discharge points indicates that the existing methodology:

accurately represents the flow from these points and is the most practical approach because: (a)the existing methodology is a volumetric technique based on the known volume of the container (sump and tank)and a level gauge for'etermining the level of liquid removed during discharge.

The level gauges for each discharge point are periodically calibrated.

Accurate flow measurement from DSN 104 is a Nuclear Regulatory Commission requirement for determining the amount of radioactivity released from BFH;and (b)the discharge piping is buried in concrete, which makes retrofitting for alternative flow measurement instrumentation impracticable.

Item 2 Item number (2)concerned the reporting of representative temperature data for DSH 105.Temperature data are not being reported for this discharge point because BFH is not operational (all units are in layup status)and not discharging through DSN 105.There has not been a discharge from DSN 105 since February 1987, as indicated by the monthly Discharge Honitoring Reports submitted to ADEN.Nhen operational, temperature data will be obtained utilizing thermal indicators located on the effluent side of the residual heat exchangers for each nuclear generation unit.This is the nearest accessible monitoring location after final treatment (heat exchangers) and prior to discharge to Haters of the United States.There are no additional sources of heat or significant heat reduction following monitoring, and the temperature data taken here will, therefore, be representative of the temperature of the water being discharged.

Temperature data will be recorded in the nuclear plant's control room and retrieved from these recorders for reporting purposes.Should these recorders temporarily malfunction, temperature data can be obtained by manually grabbing a water sample from the discharge piping i of the heat exchangers for temperature measurement.

Grab sampling has been utilized in the past due to recorder problems.However, instrumentation repair will be completed prior to startup, and we do nod anticipate the need for grab sampling for temperature at DSH 105 upon operation of BFH.2373' r>r~.r'0