ML20203C094
| ML20203C094 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 12/09/1997 |
| From: | Tam P NRC (Affiliation Not Assigned) |
| To: | Gordon Peterson DUKE POWER CO. |
| References | |
| TAC-MA0135, TAC-MA0136, TAC-MA135, TAC-MA136, NUDOCS 9712150225 | |
| Download: ML20203C094 (5) | |
Text
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December 9, 1997 Mr. G:ry R. Pet:rson Site Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Rcad York, South Carolina 29745-9635
SUBJECT:
CATAWBA NUCLEAR STATION. REQUEST FOR ADDITION AL INFORMATION ON A DESIGN BASIS ACCIDENT, DROPPING OF A WEIR GATE ONTO SPENT FUEL (TAC NOS. MA0135 AND MA0136)
Dear Mr. Peterson:
By letter dated September 25,1997, Duke Energy Corporation submitted the 1997 revision to the Catawba Updated Final Safety Analysis Report (UFSAR) in accordance with 10 CFR 50.71.
Among the changes made to the UFSAR, the revision added an analysis for a postulated acciden..nvolving dropping of a spent fuel pool weir gate onto spent fuel assemblies. This analysis, when accepted by the staff, would retroactively support portions of Section 3.9.7 of the Catawba Technical Specifications.
The staff has reviewed your submittal, and found that the enclosed request for additional information (RAl) is needed to complete the review. Please provide your response within 45 days of receipt of this letter. Contact me at 301-4151451 if you have any questions regarding this RAl.
Sincerely, OR1GINAL SIGNED BY:
Peter S. Tam, Senior Project Manager Project Directorate 112 Division of Reactor Projects 1/ll Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414
Enclosure:
As stated cc w/ encl: See next page t
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NUCLEAR REGULATORY COMMISSION WASHINGTON, o.C. 3066H001 December 9, 1997 Mr. Gary R. Peterson Site Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 9635
SUBJECT:
CATAWBA NUCLEAR STATION. REQUEST FOR ADDITIONAL INFORMATION ON A DESIGN BASIS ACCIDENT, DROPPING OF A WElR GATE ONTO SPENT FUEL (TAC NOS. MA0135 AND MA0136)
Dear Mr. Peterson:
By letter dated September 25,1997, Duke Energy Corporation submitted the 1997 revision to the Catawba Updated Final Safety Analysis Report (UFSAR) in accordance with 10 CFR 50.71.
Among the changes made to the UFSAR, the revision added an analysis foi a postulated accident involving dropping of a spent fuel pel welt gate onto spent fuel assemblies. This analysis, when accepted by the staff, woLJ ativiWvely support portions of Section 3.9.7 of the Catawba Technical Specifications.
The staff has reviewed your submittal, and found that the enclosed request for additional information (RAl) is needed to complete the review, Piease provide your response within 45 days of receipt of this letter. Contact me at 3014151451 if you have any questions regarding this RAI, Sincerely, J
Peter S. Tam, Senior Project Manager Project Directorate ll 2 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50 413 and 50414
Enclosure:
As stated cc w/ encl: See next page
i r
Catawba Nuclear Station cc:
i Mr, M. S. Kitlan North Carolina Electric Membership Regulatory Compliance Manager Corporation l
Duke Energy Corporation P. O. Box 27306 4800 Concord Road Raleigh, North Carolina 27611
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York, South Carolina 2g745 Senior Resident inspector Mr. Paul R. Newton U.S. Nuclear Regulatory Commission Legal Department (PB05E) 4830 Concord Road Duke Energy Corporation York, South Carolina 2g745 422 Sotth Church Street Charlotte, North Carolina 28242 Regional Administrator, Region 11 U. S. Nuclear Regulatory Commission J. Michael McGarry, Ill, Esquire Atlanto Federal Center Winston and Strawn 61 Forsyth Street, S.W., Suite 23T85 1400 L Street, NW Atlanta, Georgia 30303 Washington, DC 20005 Max Batavia, Chief North Carolina Municipal Power Bureau of Radiological Health Agency Number 1 South Carolina Department of 1427 Meadowwood Boulevard Health and Environmental Control P. O. Box 2g513 2600 Bull Street Raleigh, North Carolina 27626 Golumbia, South Carolina 29201 Mr. Peter R. Harden, IV Mr. G. A. Copp Account Sales Manager Licensing - EC050 Westinghouse Electric Corporation Duke Energy Corporation Power Systems Field Sales 526 South Church Street P. O. Box 7288 Charlotte, North Carolina 28242 0001 Charlotte, North Carolina 28241 Saluda River Electric County Manager of York County P. O. Box g2g York County Courthouse Laurens, South Carolina 2g360 York, South Carolina 2g745 Ms. Karen E. Long Piedmont Municipal Power Agency Assistant Attorney General 121 Village Drive North Carolina Department of Justice Greer. South Carolina 2g651 P. O. Box 629 Raleigh, North Carolina 27602 Elaine Wathen, Lead REP Planner Division of Emergency Management 116 West Jones Street Raleigh, North Carolina 27603-1335
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l Catawba Nuclear Station 4
i cc:
Mr. T. Richard Puryear Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Read i
York, South Carolina 29745 Richard M. Fry, Director t
Division of Radiation Protection North Carolina Department of i
Environment, HeaMh, and Natural Resources i
3825 Barrett Drive Raleigh, North Carolina 27609 7721 1
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0 Reauest for AdditionalInformation Catawba Nuclear Station. Units 1 and 2 Ppstulated Droonino of a_\\yelr Gate Onto Soent FutL 1,
What is the basis for the X/O value of 4.78E 47 ls this the sarne as ground level X/Q values used in other, currently accepted, design basis accidents? If so, please give reference; if not, justify the difference.
2.
What is the current licensed maximum fuel burn-up limit? If it is greater than 40,000 mwd /MT, justify why a 12% gap fraction for 1 131 was not used and a value greater than 1200 psig should not be assumed for pin pressure.
3.
What is the basis for the 95% (for inorganic) and 80% (for organic) lodine removal efficiencies assumed in the first paragraph to Section 15.7.4.2.37 If this assumption only applies to Case 1, why was it not just included in the second paragraph of the same section?
4.
What is the application of Case 2 (40-day decay, no filtration)? If no application, why is it discussed in the design basis description?
5.
Although two cases are discussed, only one ' environmental consequence
- is stated (3 rem whole body,35 rem thyroid exclusion area boundary dose). Is this the result for Case 1 or Case 27 Provide the results for the missing case. Provide the consequences at the low population zone boundary and in the control room.
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