ML20055G741
| ML20055G741 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 07/13/1990 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML20055G739 | List: |
| References | |
| 50-309-90-11, NUDOCS 9007240125 | |
| Download: ML20055G741 (4) | |
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i APPENDIX A i
I NOTICE OF VIOLATION Maine Yankee Atomic Power Company Docket No. 50 309 Maine Yankee Nuclear Generating Station License No. DPR 36 I
As a result of the inspection conducted on June 5-7, 1990 and in accordance with the NRC Enforcement Policy (10 CFR 2, Appendix C), t$e following violations l
were identified.
10 CFR 20,201
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surveys as (1)Lb) requires that each licensee make or cause to be made such 1.
may be necessary to comply with the regulations in this part, and are reasonable under the circumstances to eva19 ate the extent of radiatio (2) hazards that may be present.A survey, as defit.ed in n
10 CFR 20.201 a is an evaluation of the radiation hazards incident to the production, us(e), release, disposal or presence of radioactive materials or othersourcesofradiationunderaspecificsetofconditionsandwhen app opriate, includes a physical survey of the location of materials and equ pment, and measurements of levels of radiation or concentrations of rad onctive material present.
10 CFR 20.101 prcvides-the allowable quarterly occupational radiation exposure values for individuals working in i restricted area.
monitcring equ(a) requires that each licensee supply appropriate personnel 10 CFR 20.202 ipment to and require the use of wch equipment by each r
individual who enters a restricted area under such circumstances that he receives or is likely to receive, a dose in any calendar quarter in excess i
of 25% of the applicable value specified in 10 CFR-20.101(a).
Contrary to the above the licensee's surveys and evaluationc nerformed tosupportworkonvalvePCCA216duringtheperiodMay 7-17,20.20$were 5990 inadequate to ensure compliance with 10 CFR 20.101 and 10 CFR in that:
workin on valve PCC-A-216 re ositioned their bodies Threeworkers,kactiv$tyandthelicenseedidnotmakeorcausetobe a.
during the wor made radiation surveys in all locations where the workers repositioned their bodies. As a result, three workers unknowingly lay across a grating with measured contact radiation levels up to 180 mR/hr and received unplanned, unmonitored radiation exposures ranging from about i
550 millirem to about 1600 millirem.
i 900724012G 900713 PDR ADOCK 05000309 Q
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I a contractor ALARA l
1990,atabout9:00p.m.lvePCC-A-216may b.
On the evening of May 17 technicianwasinformedf.hatworkers repairing va
-havebeenunknowinglyexposedtoradiationfieldsinexcessof100 however the individuals were permitted to return to work on i
niR/hr,PCC-A 216 without first determining their total whole body dose valve and their remaining quarterly radiation exposure value.
c.
Three workers, working on valve PCC-A 216, received unmonitored radiation exposures to the lower portions of their whole bodies in excess of 25% of the applicable value in 10 CFR 20.101 because they were not provided appropriate personnel monitoring equipment.
This is a Severity Level IV violation (Supplement IV).
f 2.
Technical Specification 5.12.1 states that in lieu of the control device or alarm signal required by paragraph 20.203 c) of 10 CFR Part 20 each High Radiation Area in which the intensity (of(2)diation is at such, levels ra that a major portion of the body could receive in any one hour a dose in i
excess of 100 millires shall be barricaded and conspicuously posted as a High Radiation Area and entrance thereto shall be controlled by requiring e
l issuance of a radiation work permit (RWP). Any individual.or group of l
individuals >ermitted to enter such areas shall be provided with or 1.
accompanied )y one or more of the following:
l A radiation monitoring device which continuously indicates the radiation dose rate in the area.
A radiation monitoring device which continuously integrates the raoiation dose rate in the area and alarms when a preset integrated i
I dote is received.
Entry into such areas with this monitoring device I
may be made after the dose rate levels in the area have been es;ablished and pereonnel have been made knowledgeable of them.
A radiological controls qualified individual (i.e., qualified in radiation protection procedures with a radiatinn dose rate monitoring' device who is responsible for pr)oviding positive control over the L
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activities within the area and w5o will perform periodic radiation surveillance at a frequency specified in the RWP.
RWP No. 90-1144 specified in Section IV, High Radiation Area Controis-TechnicalSpecifIcation5.12,thatradiationprotectioncoverage i
was to be performed every 60 minutes.
Contrary to the above, three workers working under the provisions of RWP No. 90-1144 duringtheperiodMay7-17 1990, for repair of valve PCC A-216 L
worked in a High Radiation Area and the, three workers did not have a did not have an inte continuously indicating dose rate meteralarming dosimeter or radiation surveillan every 60 minutes by a radiological controls qualified individual with a radiation dose rate monitoring device.
This is a Severity Level IV violation (Supplement IV).
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10 CFR 19.12 states in part that all individuals working in or frequenting any porfion of a, restricted area shall be kept informed of the storage, transfer, or use of radioactive meterials or radiation in such portions of the restricted area and in precautions or procedures to minimize exposure.
Contrary to the above, three workers, working in a restricted area on valve l
PCC A-216 during the period May 7-17, 1990, were not adequately informed of precautions or )rocedures to minimize their exposure. During the work activity, the tiree workers unknowingon levels were well known, and layly moved o; of their work location whose radiat received unplann(edagratIng?thathadnotbeensurveyedandasaresult across an area unmonstored radiation exposures ranging from about 550 milliremtoabout1600 millirem.
This is a Severity Level IV violation (Supplement IV).
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Technical Specification 5.11.1 requires that procedures for personnel radiation protection be prepared consistent with the requirements of 10 CFR 20 and be approved, maintained and adhered to for all operations involving personnel radiation exposure, a.
Radiation Protection Procedure No. 9.1.10 Revision 26 states in Section 6.1.8 that stay times shall be spe,cified under,Section V (of the RWP).
l-Contrary to the abova Section V of RWP No. 90-1144, used for repair of valve PCC-A-216, did not include stay times, b.
Radiation Protection Procedure No. 9.1.10, Revision 26, states in Section 6.7.1 that workers must read, understand and comply with the Radiafionwork radiation work permis exactly as written. Vent and Drain Penetrations In the Letd 90-1206, stated that a respiratcr is required if in tne aret of venting and draining.
In addition, the radiation work permit (90-1206) stated that an air sample was required during opening of a system and while venting and draining.
g Contrary to the ebove, an operator, draining valve PR 42, located in the letdown area, on May 15, 1990, during the period 4:40 a.m. to 5:30 a.m., did not wear a respirator when in the area of the venting and draining. The operator spent at least 5 minutes in the area uncapping the vent and drain lines performing radiation measurements of the.
trenchinwhichtheliquldwasreleaseddirectlyunderthedrainline, and recapping the vent and drain line.
In addition, no air sample was t
collected during the venting and draining.
This is a Severity level IV violation (Supplement IV).
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Pursuant to the provisions of 10 CFR 2.201 Maine Yankee Atomic Power Company is herebyrequiredtosubmittothisofficewIthinthirtydaysofthedateofthe letter which transmitted this Notice, a written statement or explanation in J
reply, d; including: 1) the corrective steps which have been taken and the results and (3) the(2) corre(ctive steps which will be taken to avoid fu achieve date when full compliance will be achieved. Where good cause is shown, consideration will be given to extending this response time, b
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