ML20128J963
| ML20128J963 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/10/1993 |
| From: | Oconnor P Office of Nuclear Reactor Regulation |
| To: | Cottle W ENTERGY OPERATIONS, INC. |
| References | |
| GL-92-04, GL-92-4, TAC-M84281, NUDOCS 9302180017 | |
| Download: ML20128J963 (4) | |
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NUCLE AR REGULATORY COMMISSION 7
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February 10, 1993 Docket No. 50-416 Mr. William T. Cottle Vice President, Operations GGNS n
Entergy Operations, Inc.
Post Office Box 756 Port Gibson, Mississippi 39150
Dear Mr. Cottle:
SUBJECT:
RESPONSE TO GENERIC LETTER 92-04
- RESOLUTION OF THE ISSUES RELATED TO REACTOR VESSEL WATER LEVEL INSTRUMENTATION IN B0lllNG WATER REACTORS" - GRAND GULF NUCLEAR STATION, UNIT 1 (TAC NO. M84281)
This letter acknowledges receipt of your response to Generic Letter (GL) 92-04, dated September 25, 1992.
GL 92 04 was issued by letter dated August 19, 1992, to all operating Boiling Water Reactor (BWR) licensees.
GL 92-04 requested licensees to promptly assess the impact on their facilities of potentially erroneous level indication due to non-condensible gases, and 6 implement compensatory measures and long term corrective actions as accessary.
We find acceptable:
(1)
Entergy Operations, Inc. (E01) review and acceptance cf the BWR Owners' Group (BWROG) generic analysis as being applicable to the Grand-Gulf Nuclear Station.
(2)
E01 endorsement of the BWROG commitment, outlined in its letter dated August 12, 1992, rogarding schedule and plans for actions to address postulated errors in BWR water level instrumentation.
(3)
E01 endorsement of the BWROG's Emergency Procedures Committee guidance letter dated August 19, 1992.
This letter provides guidance for operator action in the event of level indication errors due to non-condensible. gases during reactor pressure vessel (RPV) dep' assurization.
We also understand that you have sensitized your operators to these potential errors consistent with the BWROG guidance.
(4)
E01 commitment to implement the longer term BWROG finding resulting from their experimental and analytical programs on a schedule consistent with the BWROG program, as documented in their letter of August 12, 1992, and-discussed at the October 29, 1992, meeting with the NRC.
On October 23, 1992, the BWROG approved refined operator guidance developed _ by the Emergency Procedures Committee, sent to your Operations Superintendent on i:
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l Mr. William T. Cottle 2-October 16, 1992, for response to instrument errors due to non-condensible gases.
We feel that this guidance provides aspropriate information for operators to adequately identify and deal wit 1 potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance, has been incorporated into your station operations.
Should you have any questions, please contact me at (301) 504-1307.
Sincerely, Paul W. O'Connor, Senior Project Manager.
Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc:
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Mr. Donald C. Hintz, President Mr. C. R. Hutchinson and Chief Executive Officer GGNS General Manager Entergy Operations, Inc.
Entergy Operations, Inc.
P. O. Box 31995 P. O. Box 756 Jackson, Mississippi 39286-1995 Port Gibson, Mississippi 39150 Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child & Caraway Attorney General P. O, Box 651 Department of Justice Jackson, Mississippi 39205 State of Louisiana P. O. Box 94005 Nicholas S. Reynolds, Esquire Baton Rouge, Louisiana 70804-9005 Winston & Strawn 1400 L Street, N.W. - 12th floor Alton B. Cobb, M.D.
Washington, D.C.
20005-3502 State Health Officer State Board of Health Mr. Jack McMillan, Director P. O. Box 1700 Division of Solid Waste Management Jackson, Mississippi 39205 Mississippi Department of Natural Resources Office of the Governor P. O. Box 10385 State of Mississippi Jackson, Mississippi 39209 Jackson, Mississippi 39201 President, Mike Morre, Attorney General claiborne County Board'of Supervisors Frank' Spencer, Asst. Attorney General Port Gibson, Mississippi 39150 State of Mississippi Post Office Box 22947 Regional Administrator, Region 11 Jackson, Mississippi 39225 U.S. Nuclear Regulatory Commission 101 Marietta St., Suite 2900 Mr. John P. McGaha Atlanta, Georgia 30323 Vice President,.0perations support Entergy Operations, Inc.
Mr. Michael J. Meisner P.O. Box 31995 Director, Nuclear Licensing Jackson, Mississippi 39286-1995 Entergy Operations, Inc.
P. O. Box 756 Mr. S. S. Chan Port Gibson, Mississippi 39150 Prnject Engineer Bechtel Power, Corporation Mr. K. G. Hess
.P.O.-Box 2166 Bechtel Power Corporation Houston, Texas 77252-2166 P. O. Box 2166 Houston, Texas 77252-2166 Mr. Rudolph H. Bernhard Senior Resident Inspector U.S. Nuclear Regulatory Commissian Route 2, Box 399 Port Gibson, Mississippi -39150 su
Mr. William T. Cottle October 16, 1992, for response to instrument errors due to non-condensible gases. We feel that this guidance provides a]propriate information for operators to adequately identify and deal wit) potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance, has been incorporated into your s+ation operations.
Should you have any questions, please contact me at (301) 504-1307.
Sincerely,
/S/
Paul W. O'Connor, Senior Project Manager Project Directorate IV-1 Division of Reactor Projects - Ill/IV/V Office of Nuclear Reactor Regulation cc:
See next page DISJRlWil01u Docket file NRC & Local PDRs PD4-1 Reading P. Noonan M. Virgilio J. Roe G. Hubbard PD4-1 Plant fila P. O'Connor ACRS(10)
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