ML20147H714

From kanterella
Jump to navigation Jump to search
Documents Re Assessment by Office of State Prog of the Uses of WASH-1400 in the Licensing Process.Includes Memos,Repts, Transcripts,Etc,Noted by Staff as Pertinent
ML20147H714
Person / Time
Issue date: 12/11/1978
From:
NRC OFFICE OF STATE PROGRAMS (OSP)
To:
Shared Package
ML18078B291 List:
References
RTR-WASH-1400 NUDOCS 7812270376
Download: ML20147H714 (3)


Text

, . -_ - . . - .

/

O DETAILED RESPOIISES RECEIVED FROM SP l

l i

1 O ,

J t

'1 f(l A2 *?b 37G, j

8 be UNITED STATES j' [',o N' NUCLEAR REGULATORY COMMISSION I

( $ ..$ ' WASHINGTON. D. C. 20555

  • qhbE.
o. 0 L4 D lh 4 . . . . . "4 NOV 2 8 E MEMORANDUM FOR: Harold Denton, Director, NP'l FROM: Robert G. Ryan, Director, Office of State Programs

SUBJECT:

REGULATORY ACTIONS AND STAFF POSITIONS WHICH RELY ON WASH 1400 This Office has one item to bring to your attention in which reference to WASH-1400 was used, that is, the v :ently completed NRC/ EPA Task Force Report, NUREG-0396.

The Task Force has used information in the h u a basis to perform calculations which illustrate the likeliho ertain offsite dose levels given a core melt accident. Various o ,,ects of the study have been debated by reviewers and additional programs are underway to

-gxi extend or refine the study. While the RSS is considered by the Task Force to have limited use in dealing with plant / site specific fac-b tors, it provides the best currently available source of information on the relative likelihood of large accidental releases of radio-activity given a core melt event. The results derived from the RSS- .

based work served to confinn the Task Force judgment that offs'ite i planning for a generic distance around nuclear power plants is pruderet and useful.

'Use of the RSS probability estimates by the Task Force, in the context of emergency planning, has been thoroughly examined. It recognized that there is a large range of uncertainties in these numbers (as indicated in the Risk Assessment Review Group Report, _ . _

NUREG/CR-0400_), but the perspective gained when considering the the probabilities is important in making a rational decision con-cerning a basis for emergency planning.

-m, ' ,

mQ  ;

[: ;f aj,' ,

e)

  • Robert G. Ryan, Director Office of State Programs cc: Norman Haller, MPA O

V

l

. l O

\.

A'b Y e-l, 1

1 l

l l

l

. 17. Lv :ic , Chnir.v::

Risk Isseecsment EcVicw Group DepartT.ent of Phycic:- 1 University of California, S an tt. On r,nr . '

j Santa Lercara, Californin C i l .'

Cenr Er. Lelic:

  • In your letter of Eny 10, 107E _ x . - it'..,

you asked if the E:-:scutive Direcdcr c: ; .::nic; staff had any information which might ntvr cubs ttn tiva bearing on your deliberations. E2 in t :., has achef the senior ctnff to concider yorr rcque .

This Office is responsible for adminictra f. n of State -

. nnd local emergency preparedness plannir~ --nd for the j training of State and local govcrnmen: :: . .:.nci as w/ an aid to assuring proper response. 1:c r. activel* l considering the use of I? ASH-1400 acciden.. ccacc cc a basis for.pinnning .ac testing State cr local planc. To this end, we have asked Scndir 7-boratorice -

to prepare scenarios based on 177.FH-1400 - "^h span n l range of potentially possible incidente. :n cuitable form, these scenarios would be used to :. . the response of State and local plans and to provide c uncric bcsic for the evolution of emergency monitoring and pro-tective actions.

Our use of scenarios derived frca t:71SU-1/ > case represents a significant projection of tl . . . cccc: i Safety Study results in the public dor-i j

?

For this reason I am bringing this pot, ni 1 appli-cation to your attention.

( Subj Sincerel", O .

Ryan RF O

'.s.,.

RTJaske Od@ d HCollins bec: E. Case,NRR p,mn G i.. -

- \ .-

RGRyan H.Shapar, ELD Roberb G. Ryan, Director Y S.Levine,RES SSchwartz Office of State Progrcm.-

p) R.Minogue,SD n n, , n C/ cc: wo v. voss2.cn, Luv orrics * ' Tnh-g, Atm tim op- ;ks xy ,,,,,,,,,. /f gW/gj (,c - SP

.u.m,

  • RTJaske7dr HColn, ns g *_,, RGRyan DATE *

~5726/76 5/TN8 Es., 5/ /78

. NRC FORM 414 ( 9.76) NRCM 0240 W u. s. aovr==ne rat reewetas articsi 7s-era e4

, - m

)