ML20134C224
| ML20134C224 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 09/23/1996 |
| From: | Tuckman M DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-M90590, TAC-M90591, NUDOCS 9609260169 | |
| Download: ML20134C224 (3) | |
Text
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' DgkeIbuerCompany WrulerR. AhColuzt.JR
. Catawba Nuclear Generation Department Vice hesident 4800 ConcordRoad (803)S31&% office Wik.SC297f3 (803}Ul&f2GFax DUKEPOWER '
i September 23, 1996
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U.
S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555
Subject:
McGuire-Nuclear Station, Units 1 and 2, Docket Nos. 50-369 and 370 Supplement to Replacement SG Proposed TS Amendment
-(TACs M90590 and M90591 By letter dated March 15, 1996, Duke Power Company submitted responses to the NRC Staff's February 21, 1996 Request for Additional Information.
Subsequent review of the steam generator tube rupture (SGTR)-analysis has identified a minor. error in the calculation of the initial break fiow I
rate.
The revised offsite dose results (EAB) are summarized i
in Attachment 1.
These doses remain bounded by 10CFR100 l
limits.
The remaining discussion of the SGTR event presented in the March 15, 1996 submittal remains valid.
I As previously requested in the March 15, 1996 and prior 1
submittals, Duke Power is requesting that the subject
' Technical Specification changes for McGuire Units 1 and 2 be
--issued as'soon as possible and that the changes'become effective upon replacement of the steam generators for each respective unit.
Please. contact R.
O.
Sharpe at (704) 382-0956 if you have any questions.
Very truly yours, 4
M* d bdvw h Th M.
S. Tuckman b
-Attachment
.9609260169 960923 PDR ADOCK 05000369
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s-U.
S. Nuclear Regulatory Commission September 23, 1996 Page 2 1
xc:
S.
D. Ebneter Regional Administrator, Region II U.
S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta, GA 30323 S. M.
Shaeffer Senior Resident Inspector McGuire Nuclear Station V.
Nerses
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Project Manager, ONRR I
a
1 e-McGuire Units 1 and 2 Revised UFSAR Ch 15 Of fsite Doses 3/15/96 Revised 10CER100 Current Letter Limit UFSAR S/G Tube Rupture (SGTR)
Whole body dose (Rem) 0.342 0.334 2.5 0.34 Thyroid dose (Rem) pre-existing iodine spike 38.2 44.2 300 6.2
-coincident spike 14.9 18.1 30 1.9 Note: Current UFSAR dose analyses do not include the effect of possible S/G tube bundle uncovery.
This effect has been added to Duke's dose calculation model for Westinghouse and BWI S/G's.
It was included in the dose analyses submitted on 3/15/96 and will be included in the update to the McGuire UFSAR following S/G replacement.