ML20137X065

Forwards Jn Wilson Affidavit,Concluding That Sum of Probabilities of Tornado or hurricane-borne Missile Damage Remains Below 1 X 10 -7 W/Consideration of Addl Pertinent Structures.Related Correspondence

ML20137X065
Person / Time
Site:	South Texas
Issue date:	02/28/1986
From:	Reis E NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD)
To:	Bechhoefer C, John Lamb, Shon F Atomic Safety and Licensing Board Panel
Shared Package
ML20137X071	List: ML20137X065 ML20137X079
References
CON-#186-287 OL, NUDOCS 8603050193
Download: ML20137X065 (1)

Text

- . _ < . .

217

^

,8 p 5 %q'o. UNifED STATES

' ,e NUCLEAR NEGULATORY COMMISSION 4

,3 > - je wAswworou,0.c.gosa jotM

\ *s ,* / @q*# DuKato FEB 2 81335 uswc

'16 MR 4 40136 Charlos Bechhoefer, Esq. , Chairman Dr. James C. Lamb III Administrative Judge Ad ninistrative Judge Og Q app,g'

/" " ,

Atomic Safety and Licensing 313 Woodhaven Road Board Penol .

Chapel 11111, NC 27514 U.S. Muclest Regulatory Commission Washington, DC 20555 Frederick J. Shon Atomic Safety and Licensing Boar:1 Panel U.S. Nuclear Regulatory Commission Washington, DC 20555 i

fn the Matter of

}!OUSTO!! LIGl! TING AND POWER COMPANY, ET AL. ,

(South Texas Project. Units I r. 2) 1 Docket Nos. 50-498 and 60-499 6L_

Dear Administrative Judges:

in a tienorandum of the Licensing Board of January 29, 1086, the parties were requested to submit afffdavits addressing the following question:

! We have found that the fact that the IYC cubicle roof does riot meet deterministic tornado criteria is acceptable because the probability of a serious release by this mechanista is low, We are now confronted with a similar argument with respect to certain SIEAB flVAC Jouve,rs. Are two or three such failures to meet le, provided tho.

sum ofthethedeterminittic requirsments probabilities does not exceed permissp?

1 X 10 Tbc Staff's affidavit submitted herewith answers this question in the affirmative, and conelpdes that the sum of the propabilities of tornado or hurricane-borne missite damage remains below I x 10 with the consideration of the additional pertinent structures, Sincerely, a

%%0M g

8 Edwin J. eis t

Assistar Chief Hearing Counsel i

Enclosure:

Wilson Affidavit ce; Service List

'5d

.. . . -__ ...