ML20067A634
| ML20067A634 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 11/23/1982 |
| From: | William Jones OMAHA PUBLIC POWER DISTRICT |
| To: | Clark R Office of Nuclear Reactor Regulation |
| References | |
| LIC-82-383, NUDOCS 8212020119 | |
| Download: ML20067A634 (2) | |
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Omaha Public Power District 1623 HARNEY e OMAHA, NEBRASKA 68102 e TELEPHONE 536 4000 AREA CODE 402 November 23, 1982 LIC-82-383 Mr. Robert A. Clark, Chief U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Licensing Operating Reactors Branch No. 3 Washington, D.C.
20555
Reference:
Docket No. 50-285
Dear Mr. Clark:
Fort Calhoun Station Spent Fuel Storage Rack Expansion Omaha Public Power District's letter to the Commission dated March 12, 1982 transmitted the District's licensing submittal regarding our proposal to increase the spent fuel storage rack capacity at the Fort Calhoun Station.
This proposed modification involved the utili-zation of high density storage racks and a neutron poison material (i.e., Boraflex) in all racks for criticality control. A few months ago, the District was informed by our engineering contractor that a variation of this rack design could be utilized at the Fort Calhoun Station and that a substantial cost savings over te original design was j
possible.
The major difference of this new design is that fuel burnup is credited in the criticality analysis and, thus, the majority of the l
fuel bundles do not have to be surrounded by Boraflex to ensure the fuel's Keff remains below 0.95.
Since the cost of the spent fuel rerack project could be significantly reduced, the District commenced an evalu-ation to determine if pursuing approval and installation of this new design was practical. Additionally, as a result of our bidding process, several vendors submitted an alternate structural design for the new racks, which has been evaluated and could result in additional savings to the District and our customers.
l On October 22, 1982, Mr. T. Patterson of the District met informally with members of your staff to discuss the new rack design and the District's plans for revising our previous licensing submittal to
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inccrporate the necessary engineering analyses and justification for A
this design.
The purpose of this letter is to formally notify the 00/
8212O20119 821123 PDR ADOCK 05000285 P
V'.
Mr. Robert A. Clark LIC-82-383 Page Two Commission that the District has decided to pursue approval for the installation of the rack design which accounts for fuel burnup.
The new rack design will utilize a combination of Boraflex and non-Boraflex racks, where burnup is credited for the fuel in the racks without the neutron poison. The new rack design also incorporates structural differences resulting from accepting an alternate design from the vendors. The District expects to submit a revised application, with significant changes addressed in the mechanical, seismic, criticality, and administrative control areas, by January 1,1983.
Sincerely, W. C. Jones Divisio'riManager Production Operations WCJ/TLP:jmm cc:
LeBoeuf, Lamb, Leiby & MacRae j
1333 New Hampshire Avenue, N.W.
Washington, D.C.
20036 Mr. E. G. Tourigny, NRC Project Manager
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