ML20136D667

Forwards Safety Evaluation Re Alternate Pipe Break Criteria to Eliminate Arbitrary Intermediate Pipe Breaks in High Energy Piping Sys.Request Acceptable.Evaluation Will Be Incorporated Into Next Sser

ML20136D667
Person / Time
Site:	Seabrook
Issue date:	06/07/1985
From:	Novak T Office of Nuclear Reactor Regulation
To:	Harrison R PUBLIC SERVICE CO. OF NEW HAMPSHIRE
Shared Package
ML20136D673	List: ML20136D667 ML20136D675
References
NUDOCS 8601060236
Download: ML20136D667 (5)

Text

UNITED STATES

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,j ,j NUCLEAR REGULATORY COMMISSION WASHINGTON, D C. 20555 JUN 7 1985

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Docket Nos.: 50-443 and 50-444

. Mr. Robert J. Harrison -

' President & Chief Executive Officer Public Service Company of New Hampshire Post Office Box 330 Manchester, New Hampshire 03105

SUBJECT:

SEABROOK NUCLEAR STATION UNIT 1 - ARBITRARY INTERMEDIATE PIPE BREAKS

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References:

1. Letter from J. DeVincentis, Public Service of New Hampshire (PSNH) to G. W. Knighton, NRC, dated February 7, 1985.

Subject:

Elimination of Arbitrary Intennediate Pipe Breaks

'2. Letter from J. DeVincentis, PSNH, to G. W. Knighton, NRC, dated February 19, 1985,

Subject:

Elimination of Arbitrary Intermediate Pipe Breaks; Retransmittal of Attachment D, Potential for Stress Corrosion Cracking

3. Letter from'J. DeVincentis, PSNH, to G. W. Knighton, MRC, dated April 12, 1985,

Subject:

Elimination of Arbitrary Intermediate Pipe Breaks in the. Feedwater System.

We have reviewed the Public Service of New Hampshire (PSNH) submittals (Refer-ences 1, 2 and 3) dealing with alternative pipe break criteria that would eliminate arbitrary intennediate pipe breaks in all high energy piping systems at the Seabrook Station, Unit 1. Our evaluation of your submittals is attached.

We will incorporate this evaluation into our next supplement to the SER.

Based on our review of the technical justification for elimination of arbitrary intermediate breaks given in Attachments A through E to your submittal in Reference 1 as supplemented by References 2 and 3, we have concluded that your request is acceptable. This approval applicable to Unit 1 only, since References 1, 2 and 3 give details of proposed breaks to be eliminated for Unit 1 and not for Unit 2. Your staff has been apprised of this during a telecon between Victor Nerses and Raman Pichumani (NRC)'and Robert Sweeney, (PSNH).

You should revise the FSAR Section 3.6(b) to reflect these changes to the postulated pipe break criteria.

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Questions or additional information regarding this matter should be directed to the Seabrook Project Manager, Mr. V. Nerses.

Sincerely, Thomas M. Novak, Assistant Director for Licensing Division of Licensina

Enclosure:

As stated cc: See next page DISTRIBUTION wDocket-File-50-443/444 NRC PDR L PDR NSIC PRC System LB#3 Reading JLee VNerses

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Questions or additional infomatio.n regarding this matter should be directed to the Seabrook Project Manager, Mr. V. Nerses.

Sincerely. -

~?77 Thomas M. Novak, Assistant Director for Licensing Division of Licensing Enc'losure:

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, Seabrook Mr. Robert J. Harrison President and Chief Executive Officer Public Service Company of New Hampshire '

Post Office Box 330 Manchester, New Hampshire 03105 Thomas Dignan, Esq. E. Tupper Kinder Esq.

John A. Ritscher, Esq. G. Dana Bisbee, Esq.

Ropes and Gray Assistant Attorney General 225 Franklin' Street Office of Attorney General

' Boston, Massachusetts 02110 208 State Hosue Annex Concord, New Hampshire 03301 Mr. Bruce B. Beckley, Project Manager Public Service Company of New Hampshire Resident Inspector Post Office Box 330 Seabrook. Nuclear Power Station Manchester, New Hampshire 03105 c/o US Nuclear Regulatory Comission Post Office Box 700 Dr. Mauray Tye, President Seabrook, New Hampshire 03874 Sun Valley Association 209 Sumer Street Mr. John DeVincentis, Director Haverhill, Massachusetts 01839 Engineering and Licensing Yankee Atomic Electric Company Robert A. Backus, Esq. 1671 Worchester Road O'Neil, Backus and Spielman Framingham, Massachusetts 01701' 116 Lowell Street Manchester, New Hampshire 03105 Mr. A. M. Ebner, ' Project Manager United Engineers & Constructors Ms. Beverly A. Hollingworth 30 South 17th Street 7 A Street Post Office Box 8223 Hampton Beach, New Hampshire 03842 Philadelphia, Pennsylvari.ia 19101 William S. Jordan, III Mr. Philip Ahrens, Esq. .

Diane Curran Assistant Attorney General Hamon, Weiss & Jordan State House, Station #6 20001 S Street, NW Augusta Maine 04333 Suite 430 Washington, DC 20009 hr. Warren Hall Jo Ann Shotwell, Esq. Public Service Company of

, Office of the Assistant Attorney General New Hampshire Environmental Protection Division Post Office Box 330 One Ashburton Place Manchester, New Hampshire 03105 Boston, Massachusetts 02108 Seacoast Anti-Pollution League D. Pierre G. Cameron, Jr. , Esq. Ms. Jane Doughty General Counsel 5 Market Street Public Service Company of New Hampshire Portsmouth, New Hampshire 03801 l

Post Office Box 330 Manchester, New Hampshire 03105 Mr. Diana P. Randall 70 Collins Street Regional Administrator - Region I Seabrook, New Hampshire 03874 U.S. Nuclear Regulatory Comission i 631 Park Avenue I King of Prussia, Pennsylvania 19406

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Mr. Calvin A. Canney, City Manager Mr. Alfred V. Sargent, City Hall Chairman 126 Daniel Street Board of Selectren Portsmouth, New Hampshire 03801 Town of Salisbury, MA 01950 Ms. Letty Hett Senator Gordon J. Humphrey Town of Brentwood U. S. Senate RFD Dalton Road Washington, DC 20510

,Brentwood, New Hampshire 03833 (Attn: TomBurack)

Ms. Roberta C. Pevear SenatorGordanJ.Humphriy Town of Hampton Falls, New Hampshire 1 Pillsbury Street Drinkwater Road Concord, New Hampshire 03301 Hampton Falls, New Hampshire 03844 (Attn: Herb Boynton)

Ms. Sandra Gavutis Mr. Owen B. Durgin Chairman Town of Kensington, New Hampshire Durham Board of Selectmen RDF 1 Town of Durham East Kingston, New Hampshire 03827 Durham, New Hampshire 03824 Charles Cross, Esq.

Chairman, Board of Selectmen Shaines, Mardrigan and Town Hall -

McEaschern South Hampton, New Hampshire 03827 25 Maplewood Avenue Post Office Box 366 Mr. Angie Machiros, Chairman Portsmouth, NH 03801 Board of Selectmen for the Town of Newbury Newbury, Massachusetts 01950 Mr. Guy Chichester, Chaiman Rye Nuclear Intervention Ms. Rosemary Cashman, Chairman Comittee Board of Selectmen c/o Rye Town Hall Town of Amesbury 10 Central Road Town Hall Rye, New Hampshire 03870 Amesbury, Massachusetts 01913 Jane Spector Honorable Richard E. Sullivan Federal Energy Regulatory Mayor, City of Newburyport Commission Office of the Mayor 825 North Capital Street, NE City Hall Room 8105 Newburyport, Massachusetts 01950 Washington, D. C. 20426 M' r. Donald E.

• Chick, Town Manager Mr. R. Sweeney Town of Exeter New Hampshire Yankee Division l'0 Front Street Public Service of New Hampshire Exeter, New Hampshire 03823 Company 7910 Woodmont Avenue Mr. William B. Derrickson Bethesda, Maryland 20814 Senior Vice President Public Service Company of New Hampshire Post Offic~e Box 700, Route 1 Seabrook, New Hampsitire 03874

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