ML20009A165

Provides Guidance Re SEP Topic Format for Design Basis Event Reviews Per NRC Mar 1981 Draft Evaluation.Stresses Flexibility in Following Rept Format.Complete Topic Reviews Will Greatly Facilitate Final Safety Evaluation Issuance

ML20009A165
Person / Time
Site:	Haddam Neck, Millstone  File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	06/23/1981
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Counsil W CONNECTICUT YANKEE ATOMIC POWER CO.
References
LSO5-81-06-090, LSO5-81-6-90, NUDOCS 8107090099
Download: ML20009A165 (2)

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DISTRIBUTION:

Docket 3--.-

0 ELD June 23, 1981 NRC PDR 2.

01&E (3) fi LPDR. 6 ACRS (10)

Docket Nos. 50-213/50-245 TERA L HSmith LS05-81-06'-07 NSIC ORB #5 PM 4 ORB #5.RF CMiles, OPA DEisenhut RDiggs Glainas CHArwood Mr. W. G. Counsil, Senicr Vice President WRussell Gray File.t -

Nuclear Engineering and Operations EMcKenna Xtra Cy (4)

Connecticut Yankee Atomic Power CoapaU CBerlinger Post Office Box 270 Hartford, donnecticut 06101

SUBJECT:

SEP TOPIC FORMAT FOR DESIGN BASIS EVENT REVIEWS - HADDAM NECK PLNtT NiD MILLSTONE UNIT NO. 1 In March 1981, the NRC issued a draf t evaluation of plant transients and accidents (DBEs) for the Palisades Plant. Based on this report, each licensee of a SEP facility was to provide safety assessrrents of the DBE topics for staff review.

The staff prepared an integrated report of all of the events for Palisades for our convenience in performing the integrated assessment.

It was not our intent to require that such a report format be strictly followed for the remaining plants.

Individual topic reviews are an equally acceptable format.

In scan cases, you may elect to group related topics together to demonstrate that one topic is bounded by others or that the plant systems respond similarly.

The topic assessments that you submit should clearly identify how acceptance criteria are r.ut and justification or planned resolution of deviations.

Resultr, from FSARs or other documents which support your conclusions should be included in the evaluation.

Information on the analysis methods and codes, such as whether the code has been approved by the staff, is also needed.

Cocplete topic assessments will enable the staff to issue final SERs on the DBE topics with minimal demands on the licensee for additional information.

The guidance provided by this letter is given only to allow more flexibility in subraittal of DBE topic reviews. No change in schedule should result.

o)di Sincerely, V

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i l JUM29IE " y-'I2 ut ag, Dennis M. Crutchfie di Chief 8107090099 810623 Operating Reactors Branch #5 h u.s.megg#

PDR ADOCK 05000213 Divisica of Licensing 6'b

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'*,.....,o June 23, 1981 1

Docket Nos. 50-213/50-245 LS05-81 090 Mr. W. G. Counsil, Senior Vice President Nuclear Engineering and Operations Connecticut Yankee Atomic Power Cogany Post Office Box 270 Hartford, Connecticut 06101

SUBJECT:

SEP TOPIC FORMAT FOR DESIGN BASIS EVENT REVIEWS - HADDAM NECK PLANT AND MILLSTONE UNIT NO. 1 In March 1981, the NRC issued a draft evaluation of plant transients and accidents (DBEs) for the Palisades Plant. Based on this report, each licensee of a SEP facility was to provide safety assessments of the DBE topics for staff review.

The staff prepared an integrated report of all of the events for Palisades for our convenience in performing the integrated assessment.

It was not our intent to require that such a report format be strictly followed for the remaining plants.

Individual topic reviews are an equally acceptable i

format.

In some case:, you may elect to group related topics together to demonstrate that one topic is bounded by others or that the plant systems respond similarly.

The topic assessments that you submit should clea' h'entify how acceptance criteria are met and justification or planned ren.1J'os of deviations.

Results from FSARs or other documents which suppors vot.

onclusions should be included in the evaluation.

Information on the ano..w.s methods and codes, such as whether the code has been approved by the staff, is also needed.

Coglete topic as.sessments will enable the staff to issue final SERs on the DBE topics with minimal demands on the licensee for additional information.

1 The guidance provided by this letter is given only to allow more flexibil'ty in submittal of DBE topic reviews. No change in schedule should result.

1 Sincerely, Dennis M. Crutchfield, Ch f l

Operating Reactors Branch #5 l

Division of Licensing cc: See next page

)

Mr. W.,G. Counsil June 23, 1981 CC :

William H. Cuddy, Esquire Connecticut Energy Agency Day, Berry & Howard ATTN: Assistant Director Counselors at Law Researen and Policy One Constitution P11za Development Hartford, Connecticut 06103 Departirent of Planning and Energy Policy Board of Selectmen 20 Grand Street Town Hall Hartford, Connecticut 06106 Haddam, Connecticut 06103 Resident Inspector Northeast Nuclear Energy Cocpany Haddam Neck Nuclear Power Station ATTN: Superintendent c/o U. S. NRC Millstone Plant East Haddam Post Office P. O. Box 128 East Haddam, Connecticut 06423 Waterford, Connecticut 06385 U. S. Environmental Protection Mr. James R. Himmelwright Agency Northeast Utilities Service Company Region 1 Office P. O. Box 270 ATTN: EIS C0ORDINATOR Hartford, Connecticut 06101 JFK Federal Building Boston, Massachusetts 02203 Resident Inspector c/o U. S. NRC Superintendent P. O. Box Drawer XK Haddam Neck Plant Niantic, Connecticut 06357 RFD #1 Post Office Box 127E Waterford Public Library East Hampton, Connecticut 06424 Rope Ferry Road, Route 156 i

Waterford, Connecticut 06385 1

First Selectman of the Town l

of Waterford Hall of Records l

200 Boston Post Road Waterford, Connecticut 06385 John F. Opeka Systers Superintendent Northeast Utilities Service Company P. O. Box 270 i

Hartford, Connecticut 06101 Natural Resources Defen;e Council 91715th Street, N. W.

Washiagton, D. C.

20005 i

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