ML17328A795
| ML17328A795 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 11/21/1990 |
| From: | Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1129B, NUDOCS 9011300089 | |
| Download: ML17328A795 (4) | |
Text
ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM
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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9011300089 DOC.DATE: 90/11/21 NOTARIZED: NO DOCKET FACIL:50-315 Donald C.
Cook Nuclear Power Plant, Unit 1, Indiana 6
05000315 AUTH.NAME AUTHOR AFFILIATION ALEXICH,M.P.
Indiana Michigan Power Co. (formerly Indiana
& Michigan Ele RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Responds to NRC question re steam generator tube sleeving dose assessment.
DISTRIBUTION CODE:
AOOID COPIES RECEIVED:LTR 4 ENCL IV SIZE:
TITLE: OR Submittal:
General Distribution NOTES R
D RECIPIENT ID CODE/NAME PD3-1 LA COLBURN,T.
INTERNAL: NRR/DET/ECMB 9H NRR/DOEA/OTSB11 NRR/DST/SELB 8D NRR DST SRXB 8E REG FILE 01 EXTERNAL NRC PDR COPIES LTTR ENCL 1
RECIPIENT ID CODE/NAME PD3-1 PD NRR/DET/ESGB NRR/DST 8E2 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS1 RES/DSIR/EIB NSIC COPIES LTTR ENCL D
I D
NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 3I079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISIS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR ~
ENCL D
D
Indiana Michigan Power Company ~
P.O. Box 16631 Coiumbus, OH 43216 AEP:NRC:1129B Donald C.
Cook Nuclear Plant Unit 1 Docket No. 50-315 License No, DPR-58 UNIT 1 STEAM GENERATOR TUBE SLEEVING DOSE ASSESSMENT U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.
C.
20555 Attn:
T. E. Murley November 2l, 1990
Dear Dr. Murley:
In our June 27, 1990 letter, AEP:NRC:1129, we requested a change to the Unit 1 Technical Specifications to allow sleeving Cook Nuclear Plant steam generator tubes as opposed to plugging them.
The purpose of this letter is to respond to a question by your staff regarding that letter.
As part of the above request, we indicated that there would not be a
significant increase in individual or cumulative occupational radiation exposure.
This statement is valid for the overall plant population.
Your staff correctly pointed out that personnel performing the activity may be subjected to longer exposure times during a sleeving project.
In response, dose estimates of 18 mrem per tube for plugging and 95 mrem per tube for sleeving have been calculated during the formal ALARA review for steam generator work.
This dose increase per tube may be considered significant; however, actual doses received during any sleeving evolution will continue to be controlled by radiation protection technicians to ensure that no individual is exposed unnecessarily and/or beyond acceptable criteria.
This document has been prepared following Corporate procedures that incorporate a reasonable set of controls to ensure its accuracy and completeness prior to signature by the undersigned.
Sincerely, M
. Alexich Vice President 90ii3000S9 90ii21 I DR ADeCV ov000"'iv PDC
Dr. T. E. Murley AEP:NRC:1129B MPA/eh cc:
D. H, Williams, Jr.
A. A. Blind - Bridgman J.
R. Padgett Q. Charnoff NFEM Section Chief A. B. Davis - Region III NRC Resident Inspector
- Bridgman
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