ML20058G996
| ML20058G996 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/30/1993 |
| From: | Hutchinson C ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GNRO-93-00149, GNRO-93-149, NUDOCS 9312100222 | |
| Download: ML20058G996 (5) | |
Text
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Entergy Operations,Inc.
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November 30, 1993
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U.S. Nuclear Regulatory Commission Mail Station P1-37 Washington, D.C.
20555 Attention:
Document Control Desk
Subject:
Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29 Quarterly Status Report for Period Ending September 30, 1993 - Degraded Core Accident Hydrogen Control Program GNRO-93/00149 Gentlemen:
The Grand Gulf Nuclear Station (GGNS) Unit 1 Operating License requires that Entergy Operations, Inc. submit quarterly reports on the status of the " Degraded Core Accident Hydrogen Control Program."
In response to that requirement, Entergy Operations, Inc. submits the attached report covering the period July 1, 1993 through September 30, 1993.
Should you have any questions concerning this report, please contact Jewel Summers at (601) 437-2149.
Y urs truly,
./
ot YkI/JS/ams attachment:
Quarterly Status Report for Period Ending September 30, 1993 cc:
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Attachmrnt to GNRO-93/00149
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Hydrocen Control Program Status (Continued)
On June 26, 1993, the staff issued a supplemental safety evaluation (SSE) addressing the issues raised by the Owners Group.
The staff concluded that the issues were consistent and compatible with 10CFR50.44 and were therefore acceptable.
On August 5, 1993, the staff issued plant-specific guidance regarding previous commitments made by Mark III owners to submit plant-specific hydrogen control analysis reports.
In lieu of submitting plant-specific analyses, the staff requested to be advised by letter of the completion date as well as any significant findings and conclusions.
In accordance with this guidance, Entergy Operations, Inc. is preparing for its plant-specific submittal.
This submittal will be made by January 31, 1994.
5.0 Status of Significant Issues i
The staff's evaluation of the ECOG change requests, and subsequent issuance of the supplemental safety evaluation, confimm closure of all outstanding i
hydrogen control issues.
On September 24, 1993, the Hydrogen Control Owners Group submitted to the staff its " Accepted Topical Report (HGN-112 - A). "
This report was provided in accordance with the reporting requirements delineated in the Mark III Containment Generic Hydrogen Control SER, dated August 10, 1990.
The report is a summary document of generic BCOG submittals that have been i
made to the NRC.
The HCOG has completed development of cll required generic Mark III information in response to and in compliance with 10 CFR 50.44.
Effective December 31, 1993, the HCOG will be disbanded and will no longer exist as a formal intorface with the NRC.
After that date, further discussions regarding 10 CFR j
50.44 should be made on a plant unique basis.
6.0 Planned Activities for the Second Quarter 1993 Entergy Operations, Inc. will continue with preparation of its plant-specific final analysis summary document.
This document will be submitted by January 31, 1993, and will thereby conclude implementation of 10 CFR 50.44.
G9311301 - 6 l
I November 30, 1993 GNRO-93/00149 Page 2 of 3 1
i 1
cc:
Mr. R. H. Bernhard (w/a) i Mr. H. W. Keiser (w/a)
Mr.
R. B. McGehee (w/a)
Mr. N.
S. Reyncids (w/a)
Mr. H. L. Thomas (w/o)
Mr. Stewart D. Ebneter (w/a) l Regional Administrator U.S. Nuclear Regulatory Commission Region II l
101 Marietta St.,
N.W.,
Suite 2900 Atlanta, Georgia 30323 t
Mr.
P. W. O'Connor, Project Manager (w/2) i Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 13H3 Washington, D.C.
20555 G9311301 - 2
J Attachm:nt to GNRO-93/00149 I
)
Grand Gulf Nuclear Station Docket No. 50-416 Entergy Operations, Inc.
Quarterly Status Report for Period Ending September 30, 1993 1
" Degraded Core Accident Hydrogen Control Program" i
P G9311301 - 4
Attacharnt to GNRO-93/00149 1.0 Introduction This quarterly status report is submitted to comply with the Crand Gulf Nuclear Station (GGNS) Unit 1 Operating License.
This requirement specifies that Entergy Operations, Inc. should provide quarterly reports outlining the status of the ongoing research program to address degraded core hydrogen enntrol requirements.
This report covers the third calendar quarter of 1993, ending September 30, 1993.
This report includes brief summaries of submittals I
made by Entergy Operations this quarter, along with summaries of meetings between the NRC Staff and Entergy Operations.
Entergy Operations, is participating in the Hydrogen Control Owner Group
[
(HCOG) which is conducting generic research and analyses to resolve the degraded core hydrogen control issue.
Since the work completed by HCOG parallels Entergy Operations program to resolve this issue, this report also includes summaries of meetings between the HCOG and the NRC.
The meetings summarized in this report do not reflect a formal HCOG position with respect to any issue, but represent Entergy Operations' interpretation of those meetings.
2.0 S_ummary of Enterqv Operations, Inc. Submi t3_a_1_g Entergy Operations made no submittals to the NRC on the Degraded Core Accident Hydrogen Control Program during this calendar quarter of 1993.
3.0 Summary of HCOG and NRC Meetinga None.
4.0 Hydrogen Control Program Status The summaries and status of the Hydrogen Control Program as stated herein do not reflect the HCOG position with respect to any program, but represent Entergy Operations' interpretation of these programs.
The generic research and generic analyses conducted by BCOG to resolve the degraded core hydrogen control issues are complete.
In accordance with this, the NRC issued a Safety Evaluation Report (SER) on the generic Hydrogen Control Program on August 10, 1990.
The SER documented the NRC's review of the generic Hydrogen Control Program and delineated which issues were considered closed by the NRC and which required additional action by the HCOG and/or the individual utilities.
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