05000280/LER-1979-013-03, /03L-0 on 790410:100 Gallons Released from Boron Recovery Test Tank 1-BR-TK-2B Prior to Obtaining Sample Results.Caused by Improper Valve Lineup for Tank Recirculation in Preparation for Sampling

/03L-0 on 790410:100 Gallons Released from Boron Recovery Test Tank 1-BR-TK-2B Prior to Obtaining Sample Results.Caused by Improper Valve Lineup for Tank Recirculation in Preparation for Sampling

ML18114A554
Person / Time
Site:	Surry
Issue date:	05/08/1979
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18114A551	List: 05000280/LER-1979-013, Forwards LER 79-013/03L-0 05000280/LER-1979-013-03, /03L-0 on 790410:100 Gallons Released from Boron Recovery Test Tank 1-BR-TK-2B Prior to Obtaining Sample Results.Caused by Improper Valve Lineup for Tank Recirculation in Preparation for Sampling
References
LER-79-013-03L-01, LER-79-13-3L-1, NUDOCS 7905110164
Download: ML18114A554 (2)

LER-1979-013, /03L-0 on 790410:100 Gallons Released from Boron Recovery Test Tank 1-BR-TK-2B Prior to Obtaining Sample Results.Caused by Improper Valve Lineup for Tank Recirculation in Preparation for Sampling

Event date:
Report date:
2801979013R03 - NRC Website

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(~~tachment, page 1 of 1)

• Surry Power Station, Unit 1 Docket No: 50-280 Report No: 79-013/03L-0 Event Date:

4-10-79 ti Release of Water from Boron Recovery Test Tank to Discharge Canal Without Prior Sampling

1.

Description of Event

Hhile preparing to release Boron Recovery Test Tank l-BR-TK-2B, approximateiy 100 gallons were released prior to obtaining sample results as required by Technical Specification 3.11.A.4 *.. The release occurred through the normal release flowpath which is continuously monitored for flow ra,te and radioactivity*.

2. *Probable Consequences of Event:

A sample taken and analyzed after the release verified that the amount of radioactivity discharged was 0.6% of the limit specified in 10 CFR.20.

Since the release was welJ below allowable limits, the health and safety of the general public we~e not affected.

3.

Cause

This event was caused by an improper valve lineup for*.tarik recirculation in preparation for sai;npl~ng. _.

Consequently, while making a planned release from another tank, a release flowpath was inadvertantly established for the test tank.

4.

Innnediate Corrective Action:

All liquid,rnste releases were terminated until the problem was identified and corrected.

5.

Subsequent Corrective Action:

A representative sample from the test tank was analyzed for radioactive content and it was verified that no significant release had occurred.

6.

Action to Prevent Recurrence:

The.Operations personnel involved have been reinstructed concerning this event.

7.

Generic Implications:

There are no generic implications associated with this event.