ML17333B141

LER 97-007-00:on 971014,contract Worker Received Exposure in Excess of 10CFR20.2202 Limits.Caused by Hot Particles in Right Shoe.Collected Particles from Shoe & Performed Analysis for activity.W/971114 Ltr

ML17333B141
Person / Time
Site:	Cook
Issue date:	11/14/1997
From:	Blind A, Noble D INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LER-97-007-01, LER-97-7-1, NUDOCS 9711200043
Download: ML17333B141 (3)

Text

CATEGORY 1 REGULAT INFORMATION DISTRIBUTION STEM (RIDS)

ACCESSION NBR:9711200043 DOC.DATE: 97/11/14 NOTARIZED: NO DOCKET.g FACIL:50-316 Donald C. Cook Nuclear Power Plant, Unit 2, Indiana M 05000316 PTJTH:NAME AUTHOR AFFILIATION NOFLE,D. Indiana Michigan Power Co.

BLXND,A;A. Indiana Michigan Power Co.

RECIP . NAME RECIPIENT AFFILIATION

SUBJECT:

LER 97-007-00:on 971014,contract worker received exposure'in excess of 10CFR20.2202 limits. Caused by "hot particles" in right shoe. Collected particles from shoe performed analysis for activity.W/971114 ltr. Ec A

DISTRIBUTION CODE: IE22T COPIES RECEIVED:LTR ENCL SIZE: T TITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL 0

PD3-3 PD, 1 1 HICKMAN,J 1 1 R INTERNAL OD 2 2 AEOD/S PD/RRAB 1 l.

1 1 NRR/DE/ECGB 1 1 NRR/DE/EELB 1 1 NRR/DE/EMEB 1 1 NRR/DRCH/HHFB 1 1 NRR/DRCH/HICB 1 1 NRR/DRCH/HOLB 1 1 NRR/DRCH/HQMB 1 1 NRR/DRPM/PECB 1 1 NRR/DSSA/SPLB 1 1 NRR/DSSA/SRXB 1 1 RES/DET/EIB 1 1 RGN3 FILE 01 1 1 D

EXTERNAL: L ST LOBBY WARD 1 1 LITCO BRYCE, J H 1 1 NOAC POORE,W. 1 O.

1 NOAC QUEENER,DS 1 1 NRC PDR 1 1 NUDOCS FULL TXT 1 1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, DISTRIBUTZON LISTS CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 FULL TEXT CONVERSION REQUIRED TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 24

Indiana Michigan Power Company Cook Nuclear Plant One Cook Place Bridgman, MI49I06 INDIANA MICHIGAN POWER November 14, 1997 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Operating Licenses DPR-74 Docket No. 50-316 Document Control Manager:

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.>> Rid~i Sincerely, A. A. Blind Site Vice President

/mbd Attachment c: A. B. Beach, Region III E. E. Fitzpatrick P. A. Barrett S. J. Brewer J. R. Padgett D. Hahn Records Center, INPO NRC Resident Inspector S,

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NRC FORM 366 .S. NUCLEAR REGULATORY COMMISSION PROVED BY OMB NO. 3150-0104 (5-92) I EXPIRES 5/31/95 ESTIHATED BURDEN PER RESPONSE TO COHPLY WITH THI INFORHATIOH COLLECTION REQUEST: 50.0 HRS. FORWAR LICENSEE EVENT REPORT (LER) COMHENTS REGARDING BURDEN ESTIMATE TO TH INFORMATION AND RECORDS MANAGEHENT BRANCH (MNB 7714), U.S. NUCLEAR REGULATORY COMMISSION, WASHIHGTON, DC 20555-0001, AND TO THE PAPERWOR REDUCTION PROJECT (3150.0104), OFFICE 0 HANAGEMENT AHD BUDGET WASHINGTON DC 20503.

FACILITY NAME (1) (2)

Donald C. Cook Nuclear Plant - Unit 2 DOCKET NUMBER Page 1 of1 50-316 TITLE (4)

Interim LER - Contract Worker Received Exposure in Excess of 10CFR20.2202 Limits HONTH DAY YEAR SEQUENTIAL REVISION FACILITY HAME DOCKET NUMBER YEAR MONTH DAY YEAR NUMBER NUMBER 10 FACILITY NAME DOCKET NUMBER 14 97 97 007 00 OPERATING MODE (9) 20.2201(b) 20.2203(a)(3)(I) 50.73(a)(2)(iii) 73.71(b)

POWER 0

LEVEL (10) 20.2203(a)(2)(I) 20.2203(a)(4) 50.73(a)(2)(v) OTHER (Specify in 20.2203(a)(2)(ii.i) 50.36(c)(2) 50.73(a)(2)(viii)(A) Abstract below 20.2203(a)(2)(iv) 50.73(a)(2)(I) 50.73(a)(2)(viii)(B) and in Text, 20.2203(a)(2)(v) 50.73(a)(2)(ii) 50.73(a)(2)(x) NRC Form 366A)

NAME TELEPHONE NUMBER (Include Area Code Mr. Doug Noble, Radiation Protection Manager 616/465-5901, x2527 REPORTABLE REPORTABLE CAUSE SYSTEH COMPONENT HANUFACTURER CAUSE SYSTEM COMPOHENT MANUFACTURER TO NPRDS TO NPRDS j>j::jc,:>$ j'jest EXPECTED X YES NO SUBMISSION 01 16 98 DATE 15 ABSTRACT (Limit to 1400 spaces, i.e., approximately 15 single-spaced typewritten lines) (16)

On October 14, 1997, with Unit 2 in Mode 5, a contract worker who alarmed a foot monitor upon exiting the Unit 2 containment was discovered to have "hot particles" in his right shoe. Results of the immediate investigation revealed that when the worker reported for work at Cook he reported having experienced an uptake of mixed fission and activation products at a previous work site, which was confirmed by spectral whole body count. The investigation further revealed that the contamination had most likely been present on the insole of the worker's right shoe since the worker returned from an assignment at a European facility in August, 1997. The particles were collected from the worker's shoe and analyzed for activity, which showed primary isotopic activity of Zr-95 and Nb-95. An estimated dose of 83 rem shallow dose equivalent to the right foot was preliminarily assessed based upon time estimates and the results of the isotopic analysis. A 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> ENS notification was made at 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> EDT on October 15, 1997,

'nder the requirements of 10CFR20.2202(b)(iii), for a shallow dose equivalent to the skin or extremities exceeding 50 rems. This interim LER is submitted in accordance with 10CFR20.2203(a)(1).

The investigation into this event is continuing. The particles have been sent to Teledyne for further analysis, which has not yet been completed. Additional information has been requested from the European facility, and the domestic nuclear site(s) that the worker was assigned to prior to his arrival at Cook. It is expected that the investigation will be completed, and an update to this interim LER issued by January 16, 1998.