ML20195H416
| ML20195H416 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/07/1988 |
| From: | Gucwa L GEORGIA POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| SL-3859, NUDOCS 8801190304 | |
| Download: ML20195H416 (4) | |
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- Georgia Fdwer Company 333 Piedmont Avenue a
'i Atlanta. Georgia 30308 Tefechone 404 526-6S26 Mailie,g Address:
Post off.ce Box 4545 Atfanta, Georgia 30302 Georgia Power L.T.Cucwa IT s<.whem ec tre sy<*em -
Manager Nuclear Safety and Ucensing SL-3859 0699m
'X7GJ17-V120 January 7, 1988 U. c Nuclear Regulatory Commission ATTN: Document Control Desk Hashington, D.C.
20555 PLANT V0GTLE - UNIT 1 NRC DOCKET 50-424 OPERATING LICENSE NPF-68 RESPONSE TO NRC INSPECTION REPORT Gentlemen:
f In accordance with the provisions of 10 CFR 2.201, Georgia Power Company (GPC) submits the enclosed information in response to NRC Inspection Report 50-424/87-64 which concerns the inspection conducted by Dr. H. B. Gloersen, Ms. S. S. Adamovitz, and Mr. C. A. Hughey of the NRC Region II staff on November 16-20, 1987.
A copy of this response is being provided to the NRC Region II office for review.
In the enclosure, transcription of the NRC violation precedes GPC's response.
Should you have any questions in this regard, please contact this office at any time.
Sincerely, N' MCW L. T. Gucwa JAE/1m
Enclosure:
1.
Violation 87-64-01 and GPC Response c:
(see next page)
'88o1190304 880107 I
{DR ff/
ADOCK 0500 4
e GeorgiaPower I U. S. Nuclear Regulatory Commission January 7, 1988 Page Two c: Georaia Power Comoany Mr. J. P. O'Reilly Mr. P. D. Rice Mr. G. Bockhold, Jr.
Mr. C. H. Hayes Mr. J. E. Swartzwelder G0-NORMS Southern Comoany Services Mr. R. A. Thomas Mr. J. A. Bailey Shaw. Pittman. Potts & Trowbridge Mr. B. H. Churchill, Attorney-at-Law Troutman. Sanders. Lockerman & Ashmore Mr. A. H. Domby, Attorney-at-Law I
U. S. Nuclear Regulatory Commission Dr. J. N. Grace, Regional Administrator Mr. J. B. Hopkins, Licensing Project Manager, NRR (2 copies)
Mr. J. F. Rogge, Senior Resident Inspector-Operations, Vogtle l
t 0699m l
l rrne
- GeorgiaPower A ENCLOSURE PLANT V0GTLE - UNIT 1 NRC DOCKET 50-424 OPERATING LICENSE NPF-68 NRC 00TICE OF VIOLATION 87-64-01 AND GPC RESPONSF, VIOLATION 50-424/87-64-01 "10 CFR 20.201(b) requires that each licensee make or cause to be made such surveys as may be necessary to demonstrate compliance with the regulations and which are reasonable under the circumstances to evaluate the extent of radiation hazards that may be present.
10 CFR 20.201(a) defines survey to mean an evaluation of the radiation hazards incident to the production, use, release, disposal, or presence of radioactive materials.
10 CFR 20.103(a)(3) requires that for purposes of determining compliance with the requirements of this section, the licensee shall use suitable measurements of concentrations of radioactive materials in air for detecting and evaluating airborne radioactivity in restricted areas.
Contrary to the above, the requirement to perform evaluations necessary to demonstrate compliance with 10 CFR 20.201(b) and 20.103(a)(3) was not met in that the licensee failed to verify correctly the volume of the geometry used to conduct surveys of airborne radioactivity within the plant which resulted in inaccurate gamma spectroscopy measurements.
This is a Severity Level V violation (Supplement IV)."
RESPONSE TO VIOLATION 50-424/87-64-01 Admission or denial of alleaed violation:
The violation occurred as stated.
Reason for the violation 1 The violation occurred because an incorrect value for the volume of the "one liter" Marinelli beaker was used in the calibration of a backup system available for use in release calculations.
The correct volume was 1230cc, whereas 1100cc was used in the calculations.
The incorrect value for the volume was the result of personnel performing a volume measurement of the beaker without including the space contained in the top tubing of the beaker.
In addition, the efficiency versus energy calibration curve which was used was incorrectly based on a solid standard, and no correction for attenuation was applied to the effi:iency Curve.
0699m E-1 01/07/88 SL-3859
GeorgiaPower A ENCLOSURE (Continued)
NRC NOTICE OF VIOLATION 87-64-01 AND GPC RESPONSE Corrective steos which have been taken and the results achieved:
On November 25, 1987, the "one liter" Marinelli beaker was taken out of service (discontinued for use) in the Health Physics (HP) Counting Room and replaced with a "4.6 liter" Marinelli beaker with proper volume and efficiency curve.
The beaker was calibrated with an accepta.ble medium to account for any attentuation corrections needed.
Corrective steos which will be taken to avoid further violations:
A "one liter" Marinelli beaker with the proper attentuation corrections has been ordered and will be used to correct the noted problems in the HP Counting Room.
By February,1988, the HP Counting Room is expected to be using the same computational software as that used in the Chemistry Counting Room.
Cross-checks to ensure consistency between the HP and Chemistry Counting Rooms will be implemented in June, 1988.
Date when full comoliance will be achieved:
Full compliance was achieved on November 25, 1987 with the use of the "4.6 liter" Marinelli beaker with proper volume and efficiency curve.
l 0699m E-2 01/07/88 l
SL-3859
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