ML20198E976

Requests Technical Assistance in Review of Util 770112 Response to NRC 761229 Request Re Rev to B&W ECCS Model & Application of Model to Util CP Application

ML20198E976
Person / Time
Site:	Washington Public Power Supply System
Issue date:	01/18/1977
From:	Parr O Office of Nuclear Reactor Regulation
To:	Heineman R Office of Nuclear Reactor Regulation
References
CON-WNP-1812 NUDOCS 8605280377
Download: ML20198E976 (2)

Text

istribution: w/ encl.

% ocket File .

JAN 18 M LWR #3 File

0. Parr

. T. Cox Docket flos. 50-460 M. Rushbrook and 50-513 F. J. Williams MEliORAllDUM FOR: R. Heineman, Director, Division of Systems Safety, tlRR FROM: Olan D. Parr, Chief. Light Water Reactors Branch !!o. 3, DPM

SUBJECT:

TECHilICAL ASSISTAllCE REQUEST Your assistance is requested for the following:

Plant flane: WPPSS iluclear Projects flos.1 & 4 (WiiP-1,4)

Docket l10.: 50-460 and 50-513 Responsible Branch: LWR #3

Contact:

T. H. Cox, Project Manager, x27243 Technical 'ED+ Branch:

' - - ~ ~

Analysis Branch Reactor Systems Branch Target Completion Date: Review completed - February 25, 1977 SER supplement input to LPM - ?! arch 7,1977 Description of Request: Review applicant's response (Reference 1) to liRC request (Reference 2) concerning revision to B&W ECCS model and application of this revised model to the WilP-1,4 construction permit application. The applicant has reported, in a response prepared by B&W, that the LOCA limits previously submitted on this application and approved by the staff are still valid and conservative. Advise LPM of additional l infonnation needed, if any, by February ll, 1977. The review should be complete by February 25, 1977. SER supplement input with conclusion on applicant's compliance with Appendix K should be transmitted to Division of Project Management by March 7, 1977.

u ,o Md I I I 8605280377 770118 -

ADOCK 0500 0 *

{DR _

l l. _ . . _ . . .

l ..

Foran Al&.tla (Rev. 9 53) AIOt 0240 W u. s. oovenmasant enese time orrecas ter4.eae.see

s .

JAN 18 W/7

References:

(1) January 12, 1977 letter from D. Renberger (WPPSS) to 0. Parr (DPil) providing proposed revision to BaW ECCS Evaluation Model, g

(2) December 29, 1977 letter from 0. Parr (DPil) to J. J. Stein (WPPSS) advising of need for ECCS model revision and reevaluation for WNP-1,4.

Original Signed b1

0. D. P.ars/

Olan D. Parr, Chief Light Water Reactors Branch ?lo. 3 Division of Project Management

Enclosure:

Reference 1 cc: W. ficDonald, MIPC ,

D. B. Vassallo L. Crocker H. Berkow E. Ketchen, OELD Z. Rosztoczy T. !bvak D. Ross 1

o ,,,e .

Q LWR #3 LWgg. . . . . ._

. .,. , TCox/LLMN ODParr _

o. .

1/ / 7 /77 1/ if /77.. ._

form AFC 3la (Rev. 9+S3) AECM 0243 # u. s. novsannouwt pamtime orricas sera.sas. sos