ML20126A698

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Requests Info Re Criticality Analyses.Related Correspondence
ML20126A698
Person / Time
Site: Millstone Dominion icon.png
Issue date: 12/05/1992
From: Marucci M
CO-OPERATIVE CITIZEN'S MONITORING NETWORK, INC. (CCMN
To: Hodgdon A, Hull J
NRC OFFICE OF THE GENERAL COUNSEL (OGC)
References
CON-#492-13452 92-665-02-OLA, 92-665-2-OLA, OLA, NUDOCS 9212210189
Download: ML20126A698 (3)


Text

12&lE2 12:02 - (2a3) m 1921 MA n. SWE F.0. b %) N Ibe, G W (223) M iS21

- ;2 CD OPERATIVE CITIZEN'S HONITORING NETuGRK, INL.

F.0. Dox l'i91 New Haven, f'.

06506 (000) 'f75-22f6 (203) 307-0937 Decenber 5, 1992 Joh-llull, Esq.

Ann P. llodsdon, Esq.

Of fico of f.onoral Couna I U.S. Nuclerr Nedulatory Commission Enquent for Information Portaining to the Criticulity Analyuco of Millstono 11 Spent fuel Fool, Regions A, D, C:

Docket no. 50-336, "0L No.DPH-65,(ASLDP No. 92-f45-07 nl.A)

(Spent Fuel Fool Re-deslun) 1.

To innura enough time for review, we need the criticalit9 calculations (to include all input and output, data and prourr m, and all courco natorinto and alhor reforancor*) that were dona b 9 NRC staf f in its review of the Millstone 11 Spent Fuel Pool redes ign criticality ana19ses by HU, CE, ADB-CE, Holte=, Dr. Vernetsor ar

- the NRC otof f itoolf by Jr.ouary 5, 1992.

2. All the experinents and neasurenents. tom on Boroflex, under laboratory conditiono, at all staDos of uuo in spent foot pools under condit ions similar to Hillstone 11, and on naterials in and from the SFP at Millstone II.

This should include all accumptions, paramete o of experinente, experimentut dato, sunmary of experiments, nodels and computer programs with all assumptions specified, input with all sources of data referenced.

com,nutor runa (ouiput), and conc 1 unions.

  • 3.

In tbo 1906 rerac'i of Millstone !! the fuel assenbli s were placed for the first time in cuch cloce proximity as to have a Keff ) 1.

We need to revisit those calculations with special attention to the data on reactivity of consolidated aswmblies, e

and the information available at that tino on Doroflex and olhar naterials in usu in the pool to reduce Keff. We understand from a PU letter that DOE was direct 19 involved in that rerack dooian for incorynration of concolidated fuel occanblio,.

Wo request that pou t btain from DOE these materials for our review.

This is relevant to the current criticality analysis sinco it is our underatending that the current licenco pornito consolidation.

  • All references shouid be provided, especially inhouse documentation or that of privato or novernmental entition whoan work is not readily accousible in a typical Science & Engineering iibrary.

Paue I of 2.

4.

The prevention of criticality in the pool relies in part on circulation of diccolved baron.

Wo roquect information on post 190fererack concentrations of baron in the pool and concentration and circulation problems that have occurred.

S.

Since studies done on bornflex and on assonblics and consolidated cans may include the amount and t9pe of radiation expocura, where this inforev n is uced we noud to bo inforned if it is estinated or naasurr nb9 what methoda and means.

6.

Decauca nuch attention eing oivon to resion D, or the storage area for new fuel be, ntlC stalf, we request that tho

'information they receive he shared with ca.

7.

The current storaae in region A is auch as to be at ainost naxinum capacity, not considerina the use of consolidation.

Therofore we request all infornation nocouary for doina a conplete criticality analysis of thic region:

This information chould includo but not be linited to:

All available data un the current condition and posi t. ion (both experinental and actua!) of the anuumblion, racka, boroflex panels and netal pnel holders, sample coupons, waste and damaged fuel, consolidated cans and other pertinent utructurca.

A complate report on erosion md blackness testina (for both A and D regions) dnecribing the method utilized any lirttations of tho.procudure, 9212210189 921205 w

PDR ADOCK 05000336 %"

0 PDR

12/09/1N 12:02 (203) 777-1921 LINDA M. BLAIR P.O. Box %1 New Haven. ET DL502 (203) 777-1921

- P3 4

(ill infornation uund in any nocialing and all computer prograns and the output, conclusions, and assumed accuracy of thic procaus.

The actual radioactive isotopen uunerated as a nuanuru of burnup prior to ldh burnop and the Invel of noutron activity as it relatna to burnup and initial enrichnent.

The flow rato and chenical composition of coolant liquid in pool as it is, has been, and should be.

Sincarnly, MAllY ELLEN MARllCCI Co-ordinator, CCMN, Inc.

Page 2 of 2.

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-1MPORTANTII!

Faxes na9 ha sent to thu above phone number on Tuesdays and Thursdays hetween 0:00 and 11:00 P.M. or by calIins the nunbar and sottina an appointnant for the purpose of sendina the fax.

Thanl< gou.

Tills FAX IS FOR:

Mr. EMil JULIAN d

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