ML20235B670
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STONE 6 WEBSTER ENGINEERING CORPORATION 225 FRANKLIN STREET BOSTON, MASSACHUSETTS 02107 N..tw,ORR
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SCO 1NG ENGINEERING Dr. Peter i.. l.orrir, Lire.ctcr October 2'., Ic69 Divicion of Reactor Licensing U. :4.itonic Energy Concission 4515 St. Ll:ao 1. venue Bethasda,laryland
Dear IJoctor Errie:
I an enclosing 73 additicnal copies of 5: ens e '.Yuster proprietary report S..'Hi)-2, "LC'JTIS,.t Conputer Code to >eternine the Trnasure and, Tenpcraturo Responce of Frecsure suppression.Cente.innents to a Lo
-of-Coole.nt.".ccident.'
Ne request that these. copies, e: v211 as these transmitted with my letter of September 15, 1969, be uithheld fron public dicolocure in ecccrdence uith the Rules of Fractice,10 CFR S.f(e)(4).
The infor stion contained in thic report.::r developed at concilerable e::penre to. ster,. lebeter, and uc celie"s its dircloru e coull e:rious1;*
afP et our ccapatitive,*oritien and '.:culd 'n detrinentel to our interesta.
ic believe that uithholdin ; this repcrt vill not alvtr ely affect the public interect.
Yeurs ver-r truly, p
[' f}sf5 John H. Hoble Senior :!uclear Engineer s
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