ML20112F684

Special Rept SR-84-4:on 841015,process Vent High Range RM-GW-130-2 & Ventilation Vent High Range RM-VG-131-2 Effluent Monitors Inoperable.Cause Under Investigation. Alternate Methods of Monitoring Gaseous Effluents Confirmed

ML20112F684
Person / Time
Site:	Surry
Issue date:	12/11/1984
From:	Saunders R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
SR-84-4, NUDOCS 8501150477
Download: ML20112F684 (2)

Text

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e S OfC l PJ,.g VIRGINIA ELECTRIC AND POWER COMPANY Surry Power Station P. O. Box 315 Surry, Virginia 23883 Serial No: SR-84-4 Docket No: 50-280 License No: DPR-32 Mr. James P. O'Reilly Regional Administrator Suite 2900 101 Marietta Street, NW htlanta, Georgia 30323

Dear Mr. O'Reilly:

Pursuant to Surry Power Station Technical Specifications, the Virginia Electric and Power Company hereby submits the following Special Report for Surry Unit 1.

Report Number Applicable Technical Specification SPR-84-4 T.S. 3.7-9 Table 3.7-6 This report has been reviewed by the Station Nuclear Safety and Operating Committee and will be reviewed by Safety Evaluation and Control.

Very truly ours, R. F. Saunders Station Manager Enclosure cc: Document Control Desk, USNRC 016 Phillips Building Washington, D.C. 20555

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. o SURRY POWER STATION, UNIT NO. I DOCKET NO: 50-280 REPORT NO: SPR-84-4 TITLE OF THE EVENT: Inoperable Process Vent High Range Effluent Monitor And Ventilation Vent High Range Effluent Monitor

1. Description <:f the Event:

Effective with the issuance of Amendment Number 100 to the operating license effective October 15, 1984, Process Vent High Range (RM-GW-130-2) and Ventilation Vent High Range (RM-VG-131-2) Effluent Monitors were required to be operable. This Special Report is being submitted to inform you that these detectors have been intermittently out of service. An investigation is underway to determine the cause of inoperability with a long term goal of improved equipment reliability. A follow-up report will be submitted upon completion of the investigation.

2. Probable Consequences and Status of Redundant Equipment:

The radioactive gaseous effluent instrumentation is provided to monitor and control, as applicable, the release of radioactive materials in gaseous effluents during actual or potential releases of gaseous effluents. Since alternate meth-ods of monitoring gaseous effluents were available during this event, the health and safety of the public were not affected.

3. Cause:

The cause is under investigation at this time.

4. Immediate Corrective Action:

Alternate methods of monitoring gaseous effluents were confirmed.

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