05000267/LER-1983-002, Forwards LER 83-002/03L-0.Detailed Event Analysis Encl

Forwards LER 83-002/03L-0.Detailed Event Analysis Encl

ML20064M544
Person / Time
Site:	Fort Saint Vrain
Issue date:	02/03/1983
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20064M547	List: 05000267/LER-1983-002, Forwards LER 83-002/03L-0.Detailed Event Analysis Encl 05000267/LER-1983-002-03, /03L-0:on 830104,seven Unsampled Releases Made from Reactor Bldg Sump on 821221 & 22.Caused by Personnel Error.Daily Sample Taking Resumed on 821223.Responsible Personnel Retrained
References
P-83044, NUDOCS 8302150574
Download: ML20064M544 (5)

LER-1983-002, Forwards LER 83-002/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2671983002R00 - NRC Website

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Public service company of Cdlo1mde 16805 Road I? 1/2, Platteville, Colorado 80651-9298 February 3, 1983 Fort St. Vrain Unit No. 1 P-83044 l3

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y Mr. John T. Collins, Regional Administrator i

@ ~7 E Region IV Nuclear Regulatory Commission oil Ryan Plaza Drive i

Suite 1000 Arlington, Texas 76011

Reference:

Facility Operating License No. DPR-34 Docket No. 50-267

Dear Mr. Collins:

Enclosed please find a copy of Reportable Occurrence Report No. 50-267/83-002, Final, submitted per the requirements of Technical Specification AC 7.5.2(b)3.

Also, please find enclosed one copy of the Licensee Event Report for Reportable Occurrence Report No. 50-267/83-002.

Very truly yours, h }W<dM Don Warembourg d

Manager, Nuclear Production DW/cis Enclosure i

cc: Director, MIPC S@

1 8302150574 830203 PDR ADOCK 05000 S

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e REPORTABLE OCCURRENG DISTRIBUTION Number of Copies Dep a rtme n t o f Ene r gy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1 (P I4tter)

San Frmcisco Operations Office Attn: California Patent Group 1333 Broadway Oakland, California 94612 De p a r tme nt o f Ene rgy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P Letter)

Mr. Glen A. Newby, Chief HTR Branch Division of Nuclear Power Development Mail Station B-107 Washington, D.C.

20545 Dep artmen t o f Ene rgy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P Iatter)

Attar Project Manager P. O. Box 81608 San Diego, California 92138 1 (Original of P Intter)

Mr. John T. Collins, Regional Mainistrator Region IV Nuclear Regulatory Comission 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76011 Mr. Ge o rge Kuzmy cz - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P latter)

Nuclear Regulatory Constission 7920 Norfolk Avenue Bethesda, Maryland 20034 Diructor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P Imtter)

Office of Management Information and Program Control Nuclear Regulatory Comission Washington, D.C.

20555 1 (P Letter)

INPO Records Center Suite 1500 1100 Circle 75 Parkway Atlanta, (A 30339 Mr. Richard Phelps FSV, GA, Site Rep resentative - - - - - - - - - - - - - - - 1 (P Letter)

General Atomic Conpany 16864 Weld County Road 191/2 Platteville, Colorado 80651 l

1 (P I4tter)

NRC Resident Site Inspector l

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REPORT DATE:

February 3, 1983 REPORTABLE OCCURRENCE 83-002 Determined ISSUE 0 OCCURRENCE DATE:

January 4, 1983 Page 1 of 3 FORT ST. VRAIN NUCLEAR GENERATING STATION PUBLIC SERVICE COMPANY OF COLORADO 16805 WELD COUNTY ROAD 191/2 PLATTEVILLE, COLORADO 80651-9298 REPORT NO. 50-267/83-002/03-L-0 Final IDENTIFICATION OF i

OCCURRENCE:

On December 21.and 22, 1982, with the reactor shutdown, seven releases were made from the Reactor Building sump in the automatic mode.

During these

releases, the proportional sampler was inoperable, and daily samples were not taken.

This constitutes a degraded mode of LCO 4.8.3(f) and is reportable per Fort St. Vra.in Technical Specification AC 7.5.2(b)3.

EVENT

DESCRIPTION

With the reactor shut down and the Reactor Building tump proporticnal sampler inoperable, seven separate automatic releases were made from the Reactor Building sump between the hours of 0600 on December 21 and 0800 on December 22, 1982.

During' times that the continuous proportional sampler is inoperable and the Reactor Building sump ptaps are in the automatic mode, daily samples are required to be taken from the sump and analysis made of the composite sample three times per week. On December 21 and 22, the daily samples were inadvertently not taken.

As required, however, each of the seven discharges were made at a i

release rate less than 10 GPM, monitored by two activity monitors, recorded, and diluted with a minimum fresh water flow of at least 1100 GPM to assure conformance with the limits of 10CFR20.

No activity was detected during any of the discharges.

CAUSE

DESCRIPTION:

l Personnel error.

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Due to an oversight by on-shift Radiation Protection personnel, samples of Reactor Building sump effluent were not taken on a daily basis as required when the proportional sampler is inoperable and the Reactor Building sump pumps are in the automatic mode.

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REPORTABLE OCCURRENCE 83-002 ISSUE 0 Page 2 of 3 CORRECTIVE ACTION:

Daily sample taking resumed on December 23, 1982.

The individuals responsible for obtaining the December 21 and December 22 samples were reminded of their responsibility by the Radiation Protectior Manager.

All Radiation Protection personnel responsible for taking Reactor Building sump samples received retraining via the Health Physics Order Book as to the requirements of Specification LCO 4.8.3, Reactor Building Sump Effluent, including the requirement to obtain samples on a daily basis.

Change Notice 1433 has been issued to the Nuclear Engineering Division. This Change Notice, inter alia, will replace the existing proportional sampler with a more reliable proportional sampler.

Incorporation of the new sampler into the system will reduce the probability that daily sampling will be required.

No further corrective action is anticipated or required.

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REPORTABLE OCCURRENCE 83-002 ISSUE O Page 3 of 3 Prepared By:

fd &

es Duane L. Frye Senior Technical Services Technician

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Reviewed By:

m Charles Fuller Technical Services En,ineering Supervisor

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Reviewed By:

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Edwin D. HiY1 Station Manager l

Approved By:

[L 72a< td%

Don Warembourg g

Manager, Nuclear Production l