05000280/LER-1980-006-03, /03L-0:on 800115,during Routine Surveillance of Liquid Waste Release,Discovered That Unsampled Waste from Tank 5A Was Being Pumped to Tank 5B.Caused by Inadvertent Operation of Transfer Pump.Waste Release Terminated

/03L-0:on 800115,during Routine Surveillance of Liquid Waste Release,Discovered That Unsampled Waste from Tank 5A Was Being Pumped to Tank 5B.Caused by Inadvertent Operation of Transfer Pump.Waste Release Terminated

ML19260D957
Person / Time
Site:	Surry
Issue date:	02/11/1980
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19260D943	List: 05000280/LER-1980-005-03, /03L-0:on 800120,while Conducting PT 27D Heat Tracing Sys,Discovered That Circuit 17A Panel 9 Was Inoperative.Caused by Thermostat Failure.Maint Rept Initiated.Defective Thermostat Replaced 05000280/LER-1980-006-03, /03L-0:on 800115,during Routine Surveillance of Liquid Waste Release,Discovered That Unsampled Waste from Tank 5A Was Being Pumped to Tank 5B.Caused by Inadvertent Operation of Transfer Pump.Waste Release Terminated 05000280/LER-1980-007-03, /03L-0:on 800116,during Normal Operation,Heat Tracing Circuit 4 on Line 1-CH-56-152,boric Acid Supply to Blender Failed.Caused by Water Penetration of Heat Tracing Tape.Tape Replaced W/Higher Water Resistant Tape ML19260D942
References
LER-80-006-03L, LER-80-6-3L, NUDOCS 8002120668
Download: ML19260D957 (2)

LER-1980-006, /03L-0:on 800115,during Routine Surveillance of Liquid Waste Release,Discovered That Unsampled Waste from Tank 5A Was Being Pumped to Tank 5B.Caused by Inadvertent Operation of Transfer Pump.Waste Release Terminated

Event date:
Report date:
2801980006R03 - NRC Website

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ATTACHMENT (PAGE 1 0F 1)

SURRY POWER STATION, UNIT 1 DOCKET NO:

50-280 REPORT NO:

80-006/03L-0 EVENT DATE: 1-15-80 TITLE OF REPORT: Liquid Waste Release 1.

DESCRIPTION OF EVENT

During routine surveillance of 11guld waste release from 1-LW-TK-5B, it was discovered that the circulacion pump 1-LW-P-5A between the two tanks was inadvertently left on.

This is contrary to T.S. 3.ll.A.4 and is re-portable per T.S. 6.6.2.b.2.

2.

PROBABLE CONSEQUENCES AND STATUS OF REDUNDANT SYSTEMS:

The activity of liquid waste in both tanks was low because it was properly processed, and was ready for release. During the event, liquid waste mon-itor RM-LV-108 was in service as required and the release rate was within the limits.

If the activity of the unsampled tank was high, it would have been detected by the radiation monitor and the release would have been ter-minated automatically. The total activity released was conservatively estimated to be 0.0023 C1 (2.63 x 10-2 % T.S.).

Therefore, health and safety of the public were not affected.

3.

CAUSE

The circulation pump 1-LW-P-5A between the two tanks was inadvertently left on prior to initiating the release.

4.

IMMEDIATE CORRECTIVE ACTION

The release was terminated and 1-LW-TK-5A was sampled. The total volume of transfered liquid waste from tank 5A to 5B plus the difference betseen the total volume released and volume transfered were used to conservatively estimate the total activety relcssed.

5.

SCHEDUI.ED CORRECTIVE ACTION:

Ncne required.

6.

ACTION TAKEN TO PREVENT RECURRENCE:

Operators have been instructed to use approved procedures specifically designed to avoid recurrence.

7.

GENERIC. IMPLICATIONS:

None.

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