ML20151S963
| ML20151S963 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 07/20/1988 |
| From: | Bliss H COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 4941K, NUDOCS 8808160183 | |
| Download: ML20151S963 (2) | |
Text
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Commonwealth Edison O
one First Natoel Piaza. Chcago, IKros
's Address lieply to: Post Of5ce Sox 767 Chicago, litinois 60690 0767 July 20, 1988 Mr. A. Bert Davis Regional Administrator U. S. Nuclear Regulatory Commission Region III 799 Rooaevelt Road Glen Ellyn, IL 60137
SUBJECT:
Braidwood Station Units 1 and 2 Response to Inspection Report Nos.
50-456/88-017 and 50-457/88-017 NRC Docket Nos. 50-456 and 50-457 i
REFERENCE:
(a) W. D.
Shafer letter to C. Reed dated June 22, 1988
Dear Mr. Davis:
This letter is in response to the inspection conducted by Messrs. A. G. Januska and R. Bocanegre on May 24-26, 31 through June 2, 1988 of activities at Braidwood Station.
Reference (a) indicated that certain activities appeared to be in violation of NRC requirements.
The Commonwealth Edison Company response to the Notice of Violation is provided in the enclosure.
If you have any further questions on this matter, please direct them to this office.
H. E.
,liss Nuclear Licensing Manager
/kij encl.
cc: NRC Resident Inspector - Braidwood NRC Document Control Desk 4941K 8808160103 000720 g
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w COMMONWEALTH EDISON COMPANY RESE0_NSE TO IHSPECTION REP _QRT 456/88017 AND 457/S3_011 Y10LATION Appendix B, Criterion XII of 10 CFR Part 50, as implemented by Commonwealth Edison Quality Assurance Manual Quality Requirement QR 12.2 requires that equipment be adjusted. and calibrated against certified standards.
Contrary to the above requirements, four germanium detectors, used to demonstrate compliance with the Braidwood Technical Specifications were improperly calibrated using non-certified radioactive sources on five different occasions.
The calibrations were performed in February, May, June, and September 1987 and in January 1988 using a National Bureau of Standards traceable standard radionuclide having an expiration date of January 1987.
RESPONSE
Commonwealth Edison acknowledges the four germanium detectors were improperly calibrated using non-certified radioactive cources.
However, routine measurements made with the detectors were not shown to be inaccurate during the NRC confirmatory measurement inspection.
1 CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVED:
The germanium detectors were recalibrated by July 13, 1988, using new certified standards with an expiration date of April 1, 1989.
Detector adjustments were not necessary for this recalibration.
)
CORRECTIVE ACTION TAKEN TO AVOID FURTHER VIOLATION' i
Procedure BwCP 523-18, entitled "Empirical Fit Calibration for Germanium Detectors", is being developed and will include a prohibition on the use of expired sources for calibration purposes.
A General Surveillance Program surveillance will be scheduled on an annual basis to direct the timely replacement of expiring sources.
2 i
DATE OF FULL COMPLIANCE:
4 Full compliance is expected to be achieved by September 30, 1988.
l 4941K i
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