ML20195H471
| ML20195H471 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/25/1988 |
| From: | Kintner L Office of Nuclear Reactor Regulation |
| To: | Cottle W SYSTEM ENERGY RESOURCES, INC. |
| References | |
| TAC-69868, NUDOCS 8811300416 | |
| Download: ML20195H471 (3) | |
Text
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DISTRIBUTION November 25, 1988 CMZu)
NRC PDR Local PDR PDII.1 Reading)
S. Varga (14E4 Docket No. 50-416 G. Lainas Mr. W. T. Cottle E. Adensam Vice President, Nuclear Operations P. Anderson 3
System Energy Resources, Inc.
L. Kintner j
Post Office Box 23054 W. Hedges (8E23) t Jackson, Mississippi 39205 OGC r
t E. Jordan (MHBB3302) i B Gripes (9A2)
Dear ftr. Cottle:
ACRS(10)
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION. GRAND GULF NUC' LEAR STATION, UNIT 1 (TAC NO, 69868)
Ey letter dated October 27, 1988, System Energy Resources, Inc., requested a l
i review of its criticality analysis for the proposed storage of Cycle 4 fuel in the spent fuel storege racks of Grand Gulf Nuc1 car Station, Unit 1 (GGNS.1).
The NRC staff is reviewing this submittal and finds that the following i
additional information is needed to complete our review. Your letter dated November 21, 1988, regarding the effect of gaps in the Boraficx poison material on the margin to criticality, stated that analyses were made to determine the l
4 1
effect on k. effective ar.d provided qualitative results of the analyses.
i Provide quantitative results of the analyses showing the sensitivity of l
k-effective to gap dimension.
Designate the calculated k-effective for the I
existing and projected gaps in the Boraflex, based on gap blackness measure-(
ments in the GGNS-1 spent fuel racks. Justify the size of the gaps used in the calculation since blackness was measured for only about 10% of the irradiated storage rack cells and only 50 cells out of a total of 4348 cells
[
4 will be tested each refueling outage.
[
In order to support our review schedule, you are requested to respond to the above request by Noverter 30, 1988.
This request was discussed with your representatives by telephone on Noverber 22, 1988.
The reporting and/or recordkeeping r tquirements of this letter affect fewer i'
than ten respondents; therefore, OM3 clearance is not required under P. L.
)
96 511.
I Sincerely, 5
i 88 i
i ox Lester L. Kintner. Senior Prc
- ager l d Project Directorate 11 1
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Division of Reactor Projects 1/11
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- go Office of Nuclear Reactor Regulation y
Oce cc:
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- See previous evncurrence
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- 11/ /88
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DISTRIBUTION E
Docket File i
NRC PDR
.i Local POR PDII.1 Reading l
Docket No. 50 416 S. Varga (14E4) i G. Lainas
[
l Mr. W. T. Cottle E. Adensam 1
Vice President, Nuclear Operations P. Anderson i
System Energy ReJources, Inc.
L. Kintner Post Office Box 23054 W.Hodges(BE23) i Jackson, Mississippi 39205 OGC l
5 E. Jordan (HNBB3302)
{
j ACRS(10)(9A2)
B Grimes
Dear Mr. Cottle:
l I
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION. GRAND GULF NUCLEAR STATION, l
UNIT 1, (TAC NO. 69868) a By letter dated October 27, 1988, System Energy Rescurces, Inc., requested a e
j review of its criticality analysis for the proposed storage of Cycle 4 fuel in l
j the spent f' storage racks.
The NRC st is reviewing this submittal and finds that the following
[
additiona'
'ormation is needed to complete our review.
Your letter dated l
November 1988 regarding the effect of gaps in the Boraflex poison material i
on the margin to criticality stated that analyses were made to determine the effect on k-effective and provided qualitative results of the analyses, i
Provide quantitative results of the analyses showing the sensitivity of k-effective to gap dimension. Designate the calculated k-effective for the existing and projected gaps in the Boraflex, based on gap blackness measure.
t cents in the GGNS.1 spent fuel racks. Justify the size of the gaps used in the calculation since blackness was measured for only about 10% of the irradiated storage rack cells and only 50 cells out of a total of 4348 cells will be tested each refueling outage.
In order to support our review schedule, you are requested to respond to the enclosed request by Novester 30, 1988. This request was discussed with your l
representatives by telephone on Novester 22, 1988.
The reporting and/or reco/dkeeping requirements of this letter affect fewer
{
than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Lester L. Kintner, Senior Project Manager l
Project Directorate 11-1 l
Division of Reactor Projects 1/11 l
Office of Nuclear Reactor Regulation cc:
See next page j
"0EG :LA:PD21:DRPR:P D21:DRPR:D:PD21:DRPR :NRR:5RES
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NAME :P.Andersoa :L tner:jw:E.Adensam pF.Hodges
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DATE :11/ /88
- 11/f,988
- 11/ /88
- 1,1/ d 88 l
t OFFICIAL RECORD COPY I
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4.*
i-Mr. W. T. Cottle System Energy Resources, Inc.
Grand Gulf Nuclear Station (GGNS) l l
cc:
Mr. T. H. Cloninger Mr. C. R. Hutchinson Vice President. Nuclear Engineering GGNS General Manager and Support System Energy,tesources, Inc.
System Enargy Resources, Inc.
Post Office Box 756 P. O. Box 23054 Port Gibson, Mississippi 39150 Jackson, Mississippi 39205 Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child, Steen and Attorney General Ca raway Department of Justice P. O. Box 651 State of Louisiana 1
Jackson, Mississippi 39205 Baton Rouge, Louisiana 70804 l
Nicholas S. Reynolds, Esquire Cffice of the Governor Bishop, Liberman, Cook, Purcell State of Mississippi and Reynolds Jacksta, Mississippi 39201 1400 L Street, N.W.
Washington, D.C.
20005-3502 Attorney teneral Gartin Building Mr. Ralph T. Lally Jackson, Mississippi 39205 Manager of Quality Assurance Middle So"th Utilities System Mr. Jack McMillan, Director Services, Inc.
Division of Solid Waste Management 639 Loyola Avenue, 3rd Floor Mississippi Department of Natural New Orleans, '.outsiana 70113 Resources Post Office Box 10385 Mr. John G. Cesare Jackson, Mississippi 39209 Director, Nuclear Licensing i
fystem Energy Resources, l'ic.
Alton B. Cobb, M.D.
P. O. Box 23054 State Health Officer Jackson, Mississippi 39205 State Board of Health P.O. Box 1700 Mr. C. B. Hogg, Project Manager Jackson, Mississippi 39205 Bechtel Power Corporat'on i
P. O. Box 2166 President Houston, Texas 77252-2166 Claiborne County Board of Supervisors Mr. H. O. Christensen Senior Resident inspector Regional Administrator, Region !!
U.S. Nuclear Regulatory Ccenission U. S. Nuclear Regulatory Cossnission Route 2. Csx 399 101 Marietta Street Port Gibson, Mississippi 39150 Suite 2900 Atlanta, Georgia 30323 i
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