ML17326B504

Supplemental Ro:Offsite Location Found That Yields Higher Calculated Dose Through Milk Pathway,Per Land Use Census. Calculations Will Be Based on Assumption That Milk Animal Located 3,800 Meters from Plant in Each Land Sector

ML17326B504
Person / Time
Site:	Cook
Issue date:	12/05/1988
From:	Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	Davis A NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
AEP:NRC:1079A, NUDOCS 8812080146
Download: ML17326B504 (5)

Text

,i ACCEMRATED DI~i~BUTION DEMON STRE'5 5 SYSTEM 1

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8812080146 DOC.DATE: 88/12/05 NOTARIZED: NO DOCKET FACIL:50-316 Donald C.

Cook Nuclear Power Plant, Unit 2, Indiana 05000316 AUTH.NAME AUTHOR AFFILIATION ALEXICH,M.P.

Indiana Michigan Power Co.

(formerly Indiana

& Michigan Ele RECIP.NAME RECIPIENT AFFILIATION DAVIS,A.B.

Document Control Branch (Document Control Desk)

R

SUBJECT:

Suppl to 881031 special rept. re annual land use census conducted in 1988.

DISTRIBUTION CODE:

IE23D COPIES RECEIVED:LTRj ENCL 0 SIZE:

TITLE: Environmental Event Report. (per Tech Sp cs)

NOTES RECIPIENT ID CODE/NAME PD3-1 LA SCOTT,W INTERNAL: AEOD/DSP/TPAB NRR/DEST/ADE 8H NRR/DREP/EPB 10 NRR/PMAS/ILRB12 NUDOCS-BSTRACT G~LE RGN2/DRSS/EPRPB EXTERNAL: L'PDR NSIC COPIES LTTR ENCL 1

1 1

1 1

1 1

RECIPIENT ID CODE/NAME PD3-1 PD AEOD/PTB NRR/DOEA/EAB 11 NRR/DREP/RPB 10 NRR/PMAS/PTSB12 OGC/HDS1 RGN3 FILE 01 NRC PDR COPIES LTTR ENCL 1

1 1

1 1

1 A

NCTE 'IO AIL 'KIDS" KKIPIENIS:

D-PLEASE HELP US 'ZO REZXJCE %HASTE! ~CT THE DOCXMKI'OFZROL DESK, RjOM Pl-37 (EXT. 20079)

TO EIZMINATE RKR NAME PACE DIBTRZKFZZQR LISTS H)R DOCUMWZS RXJ DGNIT NEED)

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 19 ENCL

'I

Indiana Michigan Power Company P.O. Box 16631 Coturnbus, OH 43216 Z

ENEMA NICW6AN PWKR AEP:NRC:1079A 10 CFR 50 Appendix I Donald C.

Cook Nuclear Plant Units 1 and 2

Docket Nos.

50-315 and 50-316 License Nos.

DPR-58 and DPR-74.

TECHNICAL SPECIFICATION (T/S)

SPECIAL REPORT - LAND USE CENSUS (T/S 3.12.2)

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.

20555 Attn: A. B. Davis December 5,

1988

Dear Mr. Davis:

This letter is a supplement to our lett'er of October 31, 1988 (AEP:NRC:1079), that submitted a Special Report pursuant to our T/S Section 3.12.2 regarding our annual land use census conducted in 1988.

Subsequent to our October submittal we have identified an off-site location that yields a higher calculated dose through the milk pathway than previously calculated in accordance with T/S 4.11.2.3.

The newly calculated doses from the milk consumption pathway continue.to be well within T/S limits and the limits of 10 CFR 50, Appendix I.

Discussion As a result of a survey performed by the Cook Nuclear Plant Environmental'Section, a milk animal (goat) was identified in land sector F at a distance of approximately 3800 meters (2.36 miles) from the plant centerline.

This location is nearer to the plant than the location previously used for calculating off-site doses through the milk pathway.

Calculations of the dose commitment due to ingestion of goat's milk in sector F for the critical population groups were performed in order to provide a comparison to those reported in the Semi-Annual Radioactive Effluent Release Report for the first half of 1988.

The results of these calculations are's follows:

8812080146 88120 PDR ADOCK 05000316 PDC

t 3

Mr. A. B. Davis AEP:NRC:1079A 1988-First Quarter Reported Revised Doses REM Doses REM 1988-Second Quarter Reported Revised Doses REM Doses REM Adult Teen Child Infant 3.40 x 10 6.60 x 10 1.60 x 10 1.25 x 10 2.43 x 10 5.89 x 10 2.10 x 10 7.73 x 10 4.90 x 10 9.60 x 10 2.30 x 10 1.80 x 10 3.53 x 10 8.46 x 10 3.10 x 10

. 1.14 x 10 As can be seen from the above table, the revised doses calculated for exposure through the milk pathway are well within 10 CFR 50, Appendix I limits.

In view of the results of the survey discussed above, for purposes of future reporting of off-site doses from milk ingestion we have elected to base our calculations on the assumption that a milk animal is located at 3800 meters from the plant in each land sector (not only sector F).

This approach will ensure continued conservatism in our reported off-site. doses.

This document has been prepared following Corporate procedures that incorporate a reasonable set of'ontrols to ensure its accuracy and completeness prior to signature by the undersigned.

Sincerely, M. P. Alexic Vice President ldp cc:

D. H. Williams, Jr.

W.

G. Smith, Jr.

- Bridgman R.

C. Callen G. Charnoff NRC Resident Inspector

- Bridgman G. Bruchmann