ML19350E431

Advises That Interim Review of Westinghouse Owners Group Submittal for TMI Action Plan Item I.C.1 Re Guidance for Evaluation & Development of Procedures for Transients & Accidents Reviewed.Further Work Necessary

ML19350E431
Person / Time
Site:	Byron, Braidwood
Issue date:	06/11/1981
From:	Youngblood B Office of Nuclear Reactor Regulation
To:	Abel J COMMONWEALTH EDISON CO.
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-1.C.1, TASK-TM NUDOCS 8106230048
Download: ML19350E431 (3)

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JUN 11M DEisenhut NRC/PDR BJYoungblood L/PDR LWhite NSIC KKiper TIC Docket Nos.: M ATH 50 455 MRushbrook ACRS (16) and STN 50-456, STN 50-457 RTedesco RVollmer TMurley Mr. J S. Abel RMattson Director of Huclear Licensing-RHartfield, MPA Commonwealth Edison Company WJohnston Post Office Box 767 OELD Chicago,~1111nois 60690 OIE (3)

Cear Mr. Abel:

Subject:

Staff Evaluation of item 1.C.1 for Westinghcuse Facilities We have completed our interim review of the Westinghouse Owners Group subrittal for Action Plan item I.C.1, Guidance for the Evaluation and Development of Precedures for Transients and Accidents.

A copy of Mr. Eisenhut's May 29,19Al letter to Mr. Jurcensen, ~ Chairnan, Westing-house Owners Gr*rp is enclosed fer your information.

As indicate'! in the enclosure, fur +bar work will be necessary in order tc produce a document which satisfies the staff cositions in a tiaely ratter.

Sincerely,

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3. J. Youngblood f B. J. Younchlood, Chief

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-RTedesco RVollmer.

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- lir. J. S. Abel RMattson Director of 14uclear' Licensing

'RHartfield, MPA

.Cociaonwealth Edison Company WJohnston

. Post Office Sox 767 OELD Chicago, Illinois 60690 OIE

Subject:

Staff Evaluation of Iten I'.C.1 for Westinghous Facilities We have cuitp; ted our interim review of the West /.1ghouse Owners Group 1 submittal for -Action Plan iter I.C.1, Guidanceffor the Evaluation and

-Development of Procedures for Trans_ients(ancy' Accidents. A copy of our letter to Mr. Jurgensen, Chairman, Westinpyouse Owners Group is enclosec be necessary in orcer to procuce-a docym)re enclosure, further work will for your information. As indicated in t nt which satisfies the staff positions in a tinely 31atter.

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Sincerely, B. J. Youngolcod, Chief-Licensing Branch No.1 Division of Licensing

Enclosure:

As stated cc: See next pa e t

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Mr. J. S.:Abel-

. Director of Nuclear Licensing L Commonwealth Edison Company:

Post Office-Box '767 Chicago,-Illinois 60690 ccs:

.Mr. Edward R. Crass Mr. William Kortier.

Atomic Power. Distribution Nuclear. Safeguards and Licensing Division E Wes tir.ghouse - El ectric' Corporation Sargent & Lundy Engineers-

P. 0. Box 355,_

55 East Monroe Street

Pittsburgh, Pennsylvania' 15230 Chicago, Illinois 60603 Paul;.M. Murphy, Esq.

Nuclear Regulatory Commission, Region' III

Isham, Lincoln & Beale Office of. Inspection and Enforcement 0ne First' National ~ Plaza 799 Roosevelt Road 1

'42nd Floor' 60603 Glen Ellyn, -Illinois-60137 Chicago. Illinois

.Myron Cherry, Esq.

Mrs. Phillip B. Johnson Cherry,:Flynn-and Kanter 1907 Stratford Lane l' IBM Plaza Suite 4501.

Rockford, Illinois 61107

-Chicago ~, Illinois 60611 Ms.-Julianne Mahler Center for Governmental Studies

. Northern-Illinois University DeKalb, Illinois 60115 C. Allen Bock, Esq.

-P. 0. Box 342 Urbanan, Illinois 61820 Thomas J. -Gordon, Esq.

Waaler, Evans & Gordon 2503 S.'Neil Champaign, Illinois 161820 Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Kenneth F.' Levin, Esq.

Beatty, Levin, Holland, Basofin & Sarsany 11 South LaSalle Street Suite 2200

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Tobert W."Jurgensen,: Chairman l!cstinchouse. C <ners Group '

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icerican-Electric Power Service

. Corporation 12 Broadway:

flew York, New York < 10004

Dear Mr. iJurgensen:

y 18, 1981;.(05-54), you summarized a meeting In' your' letter dated March 20,-- 1981 between reoresentatives of thet t;RC staff,

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Tne purpose

~ Westinghouse Owners,--a_nd Westingnouse Electric Corocration. Group.(WCG) held on February

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- of tne.meetino' was to. discuss the Westinoncuse C ;ners

activities 'in resconse tio f?UREG-0737, Clarification

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mant of Procedures for Transients and' Accidents.

f summary, you recuested that the staff a: knowledge tne acceatability o

..,'tne program described in.the meeting.

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- As indicated lin a meetin'g with Tom Anderson, cf Westinghouse, on pr WOG

-1931, we nave concarns aoout tne acceptability of theThe last Inadecuate Ccre Cooling Guidelines, recuired tne coerator to dia.ncse program. '

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a soecific event using the diagnostic crocedure included lines.

As indicated in the

~ one of the inadecuate core cociing guidelines.

Feb_ruary meeting and discussed in your letter, the guidelines co not

-orovide sacotn transitions frcm the event crocedures to direct.tne This-coerator if subsecuent multiple or consecuential f ailures occur.

leaves tne ocerator with no guidance until entry conditions for the

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Furtneracre, the inacecuate Core Cooling Guidelines are reached.

guidelines ao not adcress sucsecuent reevaluation-of olant conditicas-to ensure that tne expected plant resconse is occurrinc.

Our second concern is your propesed schedule for con.oleting the pregram recognizing that development of emergency operating orocecures is aHoweve dynamic orocess witn no absolute eno point.that continual, maior burden on plant operating staffs and confusing to tne ocerators wno In the Feoruary meeting, WOG representa-must relearn tne procedures.

tives indicated thay tney expect to have the initial deveicoment pnase of tne gui& lines com:leted in July 1931, and would no You also state in your let.er that tne January 1982 and July 1982.

Mcwe.er, initial chase will adcress over 98 cercent of the total risk.

we were also told in tne meeting that tne guicelines to be submittec in July would probably not differ creatly f rom tnase alreacy submitted.

Considering our concerns witn the existing guidelines, as ad:ressed above, we do not see how the July submittal can ce 'rescansive to

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We believe that fiUREG-0737, Item I.C.1 without sicnificant chance.

additional work is necessary.

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% A The staff has not completed its; review of. WCAP 9591 ~or the probability i

estimates cresente'd,in the. February meeting, and-the Owners Grouc'nas.

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not addressed.theLbroad range 'of_ initiating events =,. including natural aneriomena such as1 earthquakes, in the analysis presented to date.

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Therefore, wef cannot assess; tne overall' adequacy lc# the proposed ~

Unless cur.: concerns, as stated-herein,::ar satisfied, the

'program.

ability.of licensees /to meet the' schedule for revising their procedures i

mayLee.comoromised.

As ; indicated in the: April.;8,1981 :ceeting, we have serious doubts that, 1

Ltne, full rance of initiating events 'and ^subsecuent-failures can. De

.adoressec within tne event-specific frameworkiadcoted by tne Westing-

? house Owners Grouo.

If youri additional -work to date providesfo re -

insight

into. resolution of tnese' concerns, we would be available-to.

ceet witn you at your convenience.

By copy of tnis letter, each ~ licensee and apolicant of a Westinghcuse-=

type plant, is being, advised of.our. evaluation of your submittai.

5incerely,

L QQ

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,- Carrell. G. (Eiser. hut, Director -

Division cf Licer. sing.

cc: - E. - Mar;;ny :-

~ W Licensees:

EApolicants.

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