ML20058Q389
| ML20058Q389 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 08/16/1990 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| References | |
| 90-412, NUDOCS 9008220056 | |
| Download: ML20058Q389 (2) | |
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WHaix A Et,r:cTHIC AND POWEH COMI'ANY
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uncnuann,Vsuunnsa unens August 16,1990 U.S. Nuclear Regulatory Commission Serial No.90-412 Attention: Document Control Desk NL&P/RMN Washington, D.C. 20555 Docket Nos.
50-338 y'S 50 339-License Nos. NPF-4 N PF Gentlemen:
l VIRGIMA ELECTRIC AND POWER COMPANY l
NORTH ANNA POWER STATION UNITS 1 AND 2 ADDENDUM TO SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE PEP _ ORT JANUARY-JUNE 1989
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l The following information should have been included in the January-June 1989 Semi-I L
Annual Radioactive Effluent Release Roport in accordance with I'echnical Specifications 3.3.3.11.b for Unit 1 and 3.3.3.10.b for Unit 2.
c A Station Design Change was performed during which the ventilation vent stack l
flow rate monitors where inoperable. These monitors were tagged out March 22,1989 for modifications to electrically isolate the ventilation stack flow signals for the' Kaman Science Radiation Monitoring System.
Due to problems i
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-discovered during post installation testing, the. system was not declared L
days.
operable until May 10,1989. It was therefore out of service for more than 30 '
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1 Personnel' responsible for preparing the Semi Annual Radioactive Efiluent Release -
Report were unaware of the inoperable status of the flow rate monitors at the time. For preparation of past reports, Station Deviation Report logs would be reviewed ~to determine if instrumentation was cut of service and needed to be reported. Beccuse a-Design Change caused the ineperable status, a Deviation Report was not prepared.
3 Therefore, individuals preparing the Semi-Annual report did not include the ventilation _
vent stack flow rate monitors in the inoperable instrumen'ation section of the report. To prevent a recurrence of this problem, we are developing procedures to ensure that Health Physics will know when a monitor required by Technical Specifications is out of service for an extended period.
If you have any questions or require additionalinformation, please contact us.
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Very truly yours,
.bSh>M-W. L. Stewart Senior Vice President - Nuclear oc:
81.S. Nuclear Regulatory Commission
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Region ll 101 Marietta Street,; N.W.
Suite 2000
. Atlanta, Georgia 30323 Mr. M. S. Lesser NRC Senior Resident inspector North Anna Power Station I
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