ML20207E941
| ML20207E941 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 08/09/1988 |
| From: | Kintner L Office of Nuclear Reactor Regulation |
| To: | Kingsley O SYSTEM ENERGY RESOURCES, INC. |
| References | |
| TAC-66883, NUDOCS 8808180184 | |
| Download: ML20207E941 (4) | |
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Docket No. 50-416 AUG 0 91999 DISTRIBUTION 5ii~attacned list Mr. Oliver 0. Kingsley, Jr.
Vice President Nuclear Operations System Energy Resources, Inc.
P.O. Box 23054 Jackson, Mississippi 39205
Dear Hr. Kingsley:
SUBJECT:
GRAND GULF NUCLEAR STATION (GGNS) UNIT 1-STAFF POSITIONS AND REQUEST FOR ADDITIONAL INFORMATION REGARDING CONTAINMENT PURGE CRITERIA (TAC NO. 66883)
By letter dated December 31, 1987, System Energy Resources, Inc., (the licensee) provided results of data on the use of containment purging during the second fuel cycle and recommended retaining the present Technical Specifications which limit the use of the 20 inch diameter purga system to 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> per year.
License Condition 2.C.(16) requires the development of long-term containment purge criteria based on operating experfrace.
Previous submittals regarding containment purge criteria were made October 3, 1986 March 2, 1987 and May 22, 1987.
The NRC staff is reviewing the proposed GGNS Unit 1, long term containment purge criteria.
Based on its review to date, the staff finds that additional information identified in the enclosure is needed to complete our review.
You are requested to provide the additional information described in the enclosure by September 15, 1988.
If you cannot meet this date or if you have questions regarding the enclosure, please contact me.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
i Sincerely, 6\\
Lester L. Kintner, Sr. Project Manager Project Directorate Il-1 Division of Reactor Projects I/II, NRR
Enclosure:
As stated cc w/cnc1:
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l Mr. Oliver D. Kingsley, Jr.
System Energy Resources, Inc.
Grand Gulf Nuclear Station (GGNS) i cc:
Mr. Ted H. Cloninger Hr. C. R. Hutchinson Vice President, Nuclear Engineering GGNS General Manager and Support System Energy Resources, Inc.
System Energy Resources, Inc.
Post Office Box 756 Post Office Box 23054 Port Gibson, Mississippi 39150 Jackson, Mississippi 39205 Robert B. McGehee. Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child, Steen and Caraway Attorney General P.O. Box 651 Department of Justice Jackson, Mississippi 39205 State of Louisiana Nicholas S. Reynolds, Esquire Bishop. Liberman, Cook, Purcell Office of the Governor and Reynolds State of Mississippi 1400 L Street, N.W.
Jackson, Mississippi 39201 Wasnington, D. C.
20005-3502 Attorney General Mr. Ralph T. Lally Gartin Building Manager of Quality Assurance Jackson, Mississippi 39205 Middle South Utilities System Services, Inc.
639 Loyola Avenue, 3rd Floor Mr. Jack McMillan, Director New Orleans, Louisiana 70113 Divicion of Solid Waste Management Mississippi Department of Natural Mr. John 6. Cesare Resources Director, Nuclear Licensing Post Office Box 10385 System Energy Resources, Inc.
Jackson, Mississippi 39209 P.O. Box 23054 Jackson, Mississippi 39205 Alton B. Cobb, M.D.
State Health Officer Mr. C. B. Hogg, Project Manager State Board of Health Bechtel Power Corporation P.O. Box 1700 P. O. Box 2166 Jackson, M'ssissippi 39205 Houston, Texas 77252-2166 President Mr. Ross C. Butcher Claiborne County Board of Supervisors Senior Resident inspector Port Gibson, Mississippt 39150 U. S. Nuclear Regulatory Commission Route 2, Box 399 Regional Administrator, Region !!
Port Gibson, Mississippi 39150 U. S. Nuclear Regulatory Commission 101 Marietta Street Mr. William T. Cottle Suite 2900
-44RS Site Director Atlanta, Georgia 30323 System Energy Resources, Inc.
P.O. Box 756 Port Gibson, Mississippi 39150
1 ENCLOSURE GRAND GULF NUCLEAR STATION UNIT 1 STAFF POSITIONS AND REQUEST FOR AD0!TIONAL INFORMATION CONTAlhMENT PURGE CRITERIA By letter dated December 31. 1987, System Energy Resources, Inc., (the licensee) proposed that initial Technical Specifications (TS) relating to containment purge criteria be unchanged for the remainder of the plant lifetime.
This proposal was based on the data collected during Cycle 2 operation.
As a result of the staff's review, we conclude the following.
(1) We concur with your conclusion that the containment monitoring program reports may be stopped because sufficient data have been generated during Cycle 2 operation to provide a basis for the containment purge criterid for low activity levels in containment.
(2) The original objective for the monitoring program was to develop a basis for long term purge criteria, and the existing (TS) were intended to be used only until this program is complete. Because the generated data base shows that only 1% of the TS allowable purge time is required, your proposal to maintain the current TS limit is inappropriate.
Therefore, you are requested to send a L
revised purge program with accompanying Technical Specifications that more adequately reflects the findings of containment purge data obtained during Cycle 2 operation.
(3)
In Table 1 attached to your submittal of AECM-87/0250, you have listed purging times as follows:
13.90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> for containment pressure relief 10.95 hours0.0011 days <br />0.0264 hours <br />1.570767e-4 weeks <br />3.61475e-5 months <br /> for reducing local MPC levels Various time pericds for surveillance For these monitored purges, provide the containment pressures, radioactivity levels, and temperatures at the beginning and and of each purging.
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G. Lainas E. Adensam P. Anderson L. Kintner 0GC E. Jordan (HNBB 3302)
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ACRS (10) l