05000272/LER-1979-062-03, /03L-0:on 790912,personnel Leaving Radwaste Area of Auxiliary Bldg Did Not Lock Door as Required by Tech Specs.Area Unlocked & Unguarded for Five Minutes.Caused by Personnel Error.Area Partitioned & Locked

/03L-0:on 790912,personnel Leaving Radwaste Area of Auxiliary Bldg Did Not Lock Door as Required by Tech Specs.Area Unlocked & Unguarded for Five Minutes.Caused by Personnel Error.Area Partitioned & Locked

ML18081A356
Person / Time
Site:	Salem
Issue date:	10/09/1979
From:	Kapple A Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18081A352	List: 05000272/LER-1979-062, Forwards LER 79-062/03L-0 05000272/LER-1979-062-03, /03L-0:on 790912,personnel Leaving Radwaste Area of Auxiliary Bldg Did Not Lock Door as Required by Tech Specs.Area Unlocked & Unguarded for Five Minutes.Caused by Personnel Error.Area Partitioned & Locked
References
LER-79-062-03L, LER-79-62-3L, NUDOCS 7910160453
Download: ML18081A356 (3)

LER-1979-062, /03L-0:on 790912,personnel Leaving Radwaste Area of Auxiliary Bldg Did Not Lock Door as Required by Tech Specs.Area Unlocked & Unguarded for Five Minutes.Caused by Personnel Error.Area Partitioned & Locked

Event date:
Report date:
2721979062R03 - NRC Website

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Report Number:

79-62/03L Report Date:

10/9/79 Occurrence Date:

9/12/79 Faclity:

Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Uncontrolled Access to a High Radiation Area CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 5 DESCRIPTION OF OCCURRENCE:

Due to crud buildup in a demineralizer used to process liquid radio-active waste, the area around the demineralizer was a high radiation area of greater than 1000 mr/hr.

At approximately 1740 hours0.0201 days <br />0.483 hours <br />0.00288 weeks <br />6.6207e-4 months <br />, the last man tn leave the area did not lock the door.

A Health Physics Technician found the door open at 1745 hours0.0202 days <br />0.485 hours <br />0.00289 weeks <br />6.639725e-4 months <br />, notified his supervisor and was posted at the door to control access.

At 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br />, the door was locked and the area secured.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Since the demineralizer was not partitioned off with a locked door to that area, the entire radioactive waste area of the Auxiliary Building was designated a high radiation area.

The cause of this occurrence was personnel error in that the last man to leave the area did not insure access control.

The door to the radioactive waste area was to be secured with a chain and padlock.

The padlock was closed and the man did not have the key.

The area was left unguarded while he went to get the key from his supervisor.

ANALYSIS OF OCCURRENCE:

Technical Specification 6.12.1 requires that in lieu of the "con-trol device" or "alarm signal" required by paragraph 20.203(L) (2) of 10CFR20; b. a high radiation area in which the intensity of radiation is greater than 1000 mrem/hr shall be conspicuously posted as a high radiation area and entrance controlled by issuance of a Radiation Exposure Permit.

All personnel permitted to enter these areas shall be provided with proper radiation monitoring devices.

Locked doors shall be provided to prevent unauthorized entry into such areas and the keys shall be maintained under the administrative control of the Shift Supervisor on duty.

All of the above requirements were met to provide control of the area except for the five minutes the area was left unlocked and unguarded.

7 910160 </63

-.... -~

LER 79-62/03L CORRECTIVE ACTION:

The area around the radioactive liquid waste processing equipment has been partitioned off from the solid rad-waste area by a chain link fence with a locked gate.

The Technical Specification requirements are being met and no further corrective action is required.

FAILURE DATA:

Not Applicable Prepared By A. W. Kapple Manager - Salem'Genrating Station SORC Meeting No.

76-79

NRC FORM 366

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I During shutdown operation, the rad-waste area of the,Auxiliary Building

[]JI! I was designated greate.r than 1000 mr/hr high radiation area due to the

((II] I liquid waste process demineralizers.

The last man to leave the area di~

IIIIJ I not lock the door as required by T/S.

The area was left unlocked and

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unguarded for five minutes.

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44 47 I Cause is personnel error in that the last man to leave the area did not o::::IIJ I have the key to unlock the padlock.

He went to get the key from his o::JJJ supervisor without insuring a guard was posted.

The area around the o:::rr:J I liquid waste process demineralizers has been partitioned off with a o:::I:!J I chain link fence with a locked gate.

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