ML20210R225
| ML20210R225 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/27/1997 |
| From: | Jacob Zimmerman NRC (Affiliation Not Assigned) |
| To: | Dennis Morey SOUTHERN NUCLEAR OPERATING CO. |
| References | |
| TAC-M99136, TAC-M99137, NUDOCS 9709020350 | |
| Download: ML20210R225 (4) | |
Text
_ _ - _ _ _ _ _ _ _ _
August 27, 1997 Mr. D. N Morey Vice President Farley Project Southern Nuclear Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201 1295
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO CRtiDIT FOR BORON FOR SPENT FUEL STORAGE - JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M99130 AND M99137)
Dear Mr. Morey:
i By letter dated June 30,1997, you submitted a proposed amendment to the Facility Operating Licenses and Technical Specifications (TS) for Farley Nuclear Plant, Units 1 and 2, to l
Incorporate the requirements necessary to change the basis for the prevention of criticality in l
the fuel storage pool. The proposed change would eliminate credit for Boraflex as a neutron absorbing material in the fuel storage pool criticality analysis.
The staff has reviewed your submittal and determined that 6dditionalinformation is required.
The enclosure identifies the requested additionalinformation needed, in order to maintain a timely review, it is requested that the information be provided within 30 days of receipt of this letter. If you require any clarification regarding this request, please call me at (301) 415-2426.
Sincerely, ORIGINAL SIGNED BY:
3 Jacob 1. Zimmerman, Project Manager Project Directorate ll 2 Divit ion of Reactor Projects - t/11 On4 of Nuclear Reactor Regulation Docket Nos. 50 348 and 50-364 So
Enclosure:
Request for Additionallnformation M
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wAswiwotow. o.c. somewooi August 27, 1997 Mr. D. N. Morey Vice President. Farley Project l
Southem Nucleer Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201 1295
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO CREDIT FOR BORON FOR SPENT FUEL STORAGE JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M99136 AND M99137)
Dear Mr. Morey:
By letter dated June 30,1997, you submitted a proposed amendment to the Facility Operating Licenses and Technical Specifications (TS) for Farley Nuclear Plant, Units 1 and 2 to incorporate the requirements necessary to change the basis for the prevention of criticality in the fuel storage pool. The proposed change would eliminate credit for Boraflex as a neutron absorbing material in the fuel storage pool criticality analysis.
The staff has reviewed your submittal and determined that additionalinformation is required.
The enclosure identifies the requested additional information needed, in order to maintain a timely review, it is requested that the information be provided within 30 days of receipt of this letter. If you require any clarification regarding this request, please call me at (301) 415 2426.
Sincerely, a
Jacob 1. Z mmerman, Project Manager Project Directorate 112 Division of Reactor Projects -1/11 Office of Nuclear Reactor Regulation Docket Nos,50-348 and 50-364
Enclosure:
Request for AdditionalInformation cc w/ encl: See next page
Joseph M. Farley Nuclear Plant oc:
Mr. R. D. Hill, Jr.
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General Manager.
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Southem Nuclear Operating Company _
Post Office Box 470 i
Ashford, Alabama 36312 Mr. Mark Ajiuni, Lloonsing Manager Southem Nuclear Operating Company Post Omos Box 1295 ~
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Birmingham,- Alabama-35201 1295 1
Mr. M. Stanford Blanton Balch and Bingham Law Firm 1
Post Offlee Box 306 1710 Sixth Avenue North l
Birmingham, Alabama 35201 i
Mr. J. D. Woodard -
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Executive Vios President Southem Nuclear Operating Company
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Post Office Box 1295 Birmingham, Alabama 35201 i
. State Health Officer '
Alabama Department of Public Health l
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- 434 Monroe Street Montgomery, Alabama 36130-1701 j
Chairman Houston County Commission Post Omoe Box 6406 i
Dothan, Alabama 36302 ;
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. Regional Administrator, Region ll U.S. Nuclear _ Regulatory Commission i
Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303
' Resident inspector U.S. Nuclear Regulatory Commission
- 7388 N. State Highway 95 Columbia, Alabama 36319
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l REQUEST FOR ADDITIONAL INFORMATION RELATED TO CREDIT FOR BORON FOR SPENT FUEL STORAGE JOSEPH M. FARLEY NUCLEAR PLANT. UNITS 1 AND 2 1.
The criticality analysis includes a 3-out of-4 checkerboard configuration (Section 4.0).
, hy is this not included in the proposed new Technical Specifications (TS)?
W 2.
The new fuel pit storage racks have been previously shown to meet the k,less than or equal to 0.g5 under fully flooded conditions. Why is this criterion not included in TS 5.6.1.27 3.
Since the revised criticality analysis did not take credit for the Boraflex panels, should this fact be included in the Bases 3/4.7.13 and 3/4.7.14 discussion?
4.
Section 6.3.2 of the criticality analysis states that the 50 ppm required for Integral Fuel Burnable Absorber (IFBA) credit is bounded by the 150 ppm required for burnup credit in the bumed/ fresh checkerboard configuration and, therefore, the total boron credit required remains at 350 ppm. However, if both IFBA credit for the high enriched assembly and bumup credit for the low-enriched assemblies are taken, the total required soluble boron credit would be 400 ppm (200+150+50). Please explain.
5.
Since the most reactive point in life considers both IFBA and fuel depletion, please explain what is meant by the statement in Section 6.3.3 that the fuel assembly is modeled at its most reactive point in life and no credit is taken for any burnable absorbers in the assembly in developing the k. model.
4 Enclosure