ML17195A507
| ML17195A507 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 02/10/1984 |
| From: | Rybak B COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| TASK-2.K.3.30, TASK-2.K.3.31, TASK-TM 8107N, NUDOCS 8402210264 | |
| Download: ML17195A507 (1) | |
Text
- ~*:.'~~\\.;~. *--~.*
- 9. Commonweal.dlso~
- One First National Plaza.. Chicago. Illinois*
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Address.Reply to: Post Office Box 767 *
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- Chicago. Illinois 6069_0
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February 10, 1984*
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~r.' Harol,d: R *. -Denton, pirecto.r
'ffic& cir Nuclear Reactor RegulatibQ U.S *. Nuclear* Regulatory Commi.ssion
. Washington,. DC
- 2.0555 S'ubject:*
Quad Cities Station *units 1 and 2 TMI Action Item ILK. 3.30 and 31
- NRc* Docket Nos. 50-254 and 50-265 Reference (a) :
- D.. B. Vassallo letter to D. L. Farrar-da ted. December 28*,. 1983 *. *
Dear:
Mr. Denton:
In the* re-ferenced letter-your* stafr** stated it. was their-*
understanding that the models used in the LOCA analysis for Quad Cities Units 1. and 2_ (updated FSAR Section 6. 2 *. 7 *. 1.) were those originally
. approved. in a. letter dated Feb.ruary :4,. 1981 as. described. in the: GE:.
- Topical. Report NED0-20566 Rev *. 1. and. Rev.: 4.
W*e would like'.. to: a.dd:. the.
following addi ti anal. clar i ficati.on.
.. The LOCA analysis 'for Quad Cities Units 1 and 2 as documented in our updated FSAR (Section 6.2.7.1) is contained in NED0~24146A which was issued-in April 1979 a~ a draft version of NED0-20566.
Subsequently, General. Electric submitted model improvements (NEDE-20566 P, NED0-20566-1 Revision 1 and NE00-20566-4 Revision ~) that were approved by the NRC an*
February 4~ 1981.
Only a major effect of these model improvements has been to-reduce PCT for BWR/3's by 1500f (as estimated by GE).
The above inf9rmation is supplied only as a clarification and does not change our conclusion that the requirements of TMI action items II.K.3.30 and II.K.3.31 have been completed for. Quad Cities Station Units 1 and 2.
One. signed original and f o~ty (40) copies of this letter are provided for your use.
. 'J.
- Nuclear lm Ver~' tru~y yours,.
-1._*.,t.( ~.:
B. Rybak
. *. *.fr *.*
Licensing* Administrator cc:.. NRC Resident Inspector. -* Quad Ci.ties R. Bevan ~NRR 8107N
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