ML20151H840

Agrees to Revise Schedule for Installing & Having ATWS Mitigation Sys Functional No Later than Sept 1990,per 880615 Request for Delay.Reasons Why Date Can Be Met Listed

ML20151H840
Person / Time
Site:	Seabrook
Issue date:	07/25/1988
From:	Nerses V Office of Nuclear Reactor Regulation
To:	Harrison R PUBLIC SERVICE CO. OF NEW HAMPSHIRE
References
NUDOCS 8808020081
Download: ML20151H840 (5)

Text

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _

t pmscoq jo,, UNITED STATES

[4. g NUCLEAR REGULATORY COMMISSION 5 l WASHINGTON, D. C. 20555

• July 25, 1988 Docket No. 50-443 Mr. Robert J. Harrison President & Chief Executive Officer Public Service Company of New Hampshire Post Office Box 330 Manchester, New Hampshire 03105

SUBJECT:

ATWS MITIGATION SYSTEM

Reference:

PSNH Letter (NYN-88083), dated June 15, 1988, "Anticipated Transient Without Scram (ATWS)", from: George S. Thomas, to:

Document Control Desk The referenced letter requested that your comitment to install an ATWS )

Mitigation System and have it functional prior to startup from the first refueling outage, no later than July 1989, be delayed until startup from the first refueling outage. You also requested that your commitment to provide plant specific design information for this system be revised to supply this information no later than the end of the first quarter of 1989 rather than six months prior to the first refueling outage.

As noted in the referenced letter, the ATWS Mitigation System will be a risk reduction enhancement modification for the Seabrook facility. Since the staff originally expected that the plant would be operated without the ATWS Mitigation System during the first fuel cycle, we agreed that delaying installation of this system beyond July 1989 and until the end of the first fuel cycle will not effect the existing plant margin of safety or provide a significant increase in risk. However, we note that our generic SER concerning ATWS mitigation systems for Westinghouse plants (WCAP-10858) was issued in July 1986 (two years ago) and that actions should be taken soon to submit the plant specific design information. Our current schedules indicate that plant specific design information will be submitted by all other Westinghouse plants by the end of 1988, and this supports our review process in an orderly and timely manner. Therefore, we request that the plant specific design information for the Seabrook ATWS Mitigation System be submitted by the end of 1988.

With regard to installing and making the Seabrook ATWS Mitigation System functional, we note that our ex,nactations are being met in that current schedules indicate that all other West 1nghouse plants will have their ATWS mitigation systems installed and functional by September 1990. We recognize that uncertainties in the licensing and startup of the Seabrook plant may cre6te scheduling difficulties for the installation of the ATWS Mitigation System. Although we would not require a plant shutdown solely to install this system, we believe that Seabrook can and should install and have its ATWS Mitigation System functional by September 1990. We believe that this date can s808020081 880725 b gDR ADOCK0500g3 g

i 2

be met even with the uncertainties in the Seabrook licensing schedule for the following reasons:

(1) If a low power license and a full power license are issued within the near future, it may be possible to complete the first fuel cycle before September 1990 and the system could then be installed during that outage.

(2) If a low power license is issued within the near future but issuance of a full power license is delayed, the system could and should be installed during an outage between issuance of the two licenses.

(3) Likewise, the system could and should be installed prior to licensing if there is a significant delay in issuance of a low power license.

(4) Another opportunity to install the system would occur if there were an extended outage subsequent to initiating power operation but prior to completing the first fuel cycle.

)

9ased on the foregoing, we agree to revise the schedule for installing and having the Seabrook ATWS Mitigation System functional to no later than September 1990. This modification to your proposed change of schedule has been mutually agreed upon upon by the Comission (Brinkman, Newberry) and licensee (Mr. Rob Sweeney, Manager, Bethesda Licensing Office).

Please contact me if you have any further questions.

Sincerely.

Original signed by:

Victor Nerses, Project Manager Project Directorate I-3 Division of Reactor Projects I/II cc: See next page DISTRIBUTION: Docket File, NRC A local PDRs, PDI.3 r/f, SVarga, BBoger, MRushbrook, VNerses, OGC, EJordan, BGrimes, RWessman, ACRS (10) .

o.

l

• See prev}ous concurrence OFC :PDI-3 * :PDI-3 * :NRR/SCIB * :PDI-3 :DIR/?DI.3 :  :

. . . . .:DBrinkman:mw:MRushbrook NAME  : . . . . . . . . . . . . : . . . . .:SNewberry f(./

. .: . . .,.......:IWesshp.....:............:...........

. .s,. . . . f. : hN r  :  : :

DATE :0E/ lW88. . . .:05 . : . 3. . . . . . . .:04?

. . : 21/88

.y/ 19/ 8 8:09/d/88 :01/h /88  :  :

OFFICIAL RECORD COPY l

I

9 Mr. Robert J. Harrison Public Service Company of New Hampshire Seabrook Nuclear Power Station cc:

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 Mr. Bruce B. Beckley, Project Manager Public Service Company of New Hampshire Resident Inspector Post Office Box 330 US Nuclear Regulatory Comission Manchester, New Hampshire 03105 Post Office Box 1149 Seabrook, New Hampshire 03874 Dr. Mauray Tye, President Sun Valley Association Mr. A. M. Ebner, Project Manager 209 Sumer Street United Engineers A Constructors Haverhill, Massachusetts 08139 Post Office Box 8223 Robert Backus, Esq.

Backus, Meyer and Solomon Steven Oleskay Esq.

116 Lowell Street Office of the Attorney General Manchester, New Hampshire 03106 One Ashburton Place P.O. Box 330 Diane Curran, Esq. Boston, Massachusetts 02108 Harmon and Weiss 2001 S Street, NW Carol S. Sneider, Esq.

Suite 430 Office of the Assistant Attorney General Washington, D.C. 20009 One Ashburton Place P.O. Box 330 Philip Ahren, Esq. Boston, Massachusetts 02108 Assistant Attorney General State House, Station #6 D. Pierre G. Cameron, Jr., Esq.

Augusta, Maine 04333 General Counsel Public Service Company of New Hampshire  !

Mr. Warren Hall Post Office Box 330 Public Service Company of Manchester, New Hampshire 03105 New Hampshire Post Office Box 330 Regicnal Administrator, Region I Seabrook, New Hampshire 03874 U.S. Nuclear Regulatory Comission 475 Allendale Road Ms. Jane Doughty King of Prussia, Pennsylvania 19406 Seacost Anti-Pollution League 5 Market Street New Hampshire Civil Defense Agency Portsmouth, New Hampshire 03001 107 Pleasant Street Concord, New Hampshire 03301 Mr. Diana P. Pandall 70 Collins Street Seabrook, New Hampshire 03874

Public Service Company of Seabrook Nucleae Power Station New Hampshire cc:

Mr. Calvin A. Canney, City Manager Mr. Alfred V. Sargent, City Hall Chairman 126 Daniel Street Board of Selectmen Portsmouth, New Hampshire 03801 Town of Salisbury, MA 01950 Board of Selectmen Senator Gordon J. Humphrey RFD Dalton Road ATTN: Tom Burack Brentwood, New Hampshire 03833 531 Hart Senate Office Building U.S. Senate Ms. Roberta C. Pevear Washington, D.C. 20510 Town of Hampton Falls, New Hampshire Drinkwater Road Mr. Owen B. Durgin Chairman Hampton Falls, New Hampshire 03844 Durham Board of Selectnen Town of Durham Mr. Guy Chichester, Chaiman Durham, New Hampshire 03824 Rye Nuclear Intervention j Comittee Jans Spector c/o Rye Town Hall Federal Energy Regulatory East Kingston, New Hampshire 03827 Comission 825 North Capital Street, NE Chairman, Board of Selectmen Room 8105 RFD 2 Washington, D. C. 20426 South Hampton, New Hampshire 03827 Mr. R. Sweeney R. Scott Hill - Whilton Three Metro Center Lagoulis, Clark, Hill-Whilton Suite 610

& McGuire Bethesda, Maryland 20814 79 State Street Newburyport, Ma, 01950 Mr. Richard Strome, Director Ms. R. Cashman, Chairman State Civil Defense Agency

. Board of Selectmen State Office Park South Tcwn of Amesbury 107 Pleasant Street Town Hall Concord, New Hampshire 03301 Amesbury, Massachusetts 01913 Adjudicatory File (2) ,

Honorsble Peter J. Matthews Atomic Safety and Licensing Board l Mayor, City of Newburyport Panel Docket i City Hall U.S. Nuclear Regulatory Comission Newburyport, Massachusetts 01950 Washington, D.C. 20555 Mr. Donald E. Chick Town Manager Congressman Nicholas Mavroules Town of Exeter 70 Washington Street 10 Front Street Salem, Massachusetts 01970 Exeter, New Hampshire 03823

e>

I u 2 be met even with the uncertainties in the Seabrook licensing schedule for,the following reasons: '

(1) If a low power license and a full power license are issued within the near future, it may be possible to complete the first fuel cycle i before September 1990 and the system could then be-installed during ,

that outage.

(2) If a low power license is issued within the near future but issuance full power license is delayed, the system could and should be p installed during an outage between issuance of the two licenses. ,

(3) Likewise, the system could and should be installed prior to licensing I if there is a significant delay in issuance of a low power license. l (4) Another opportunity to install the system would occur if there were  !

an extended outage subsequent to initiating power operation but '

prior to completing the first fuel cycle.

Based on the foregoing, we agree to revise the schedule for installing and

'; having the Seabrook ATWS Mitigation System functional to no later than September 1990. This modification to your proposed changs of schedule has been mutually agreed upon upon by the Commission (Brinkman, Newberry) and  !

licensee (Mr. Rob Sweeney, Manager, Bethesda Licensing Office).

l f 4

Please contact me if you have any further questions, i Sincerely,  !

I Original signed by:

! Victor Nerses, Project Manaae, ,

Project Directorate I-3 t [

Division of Reactor Projects I/II cc: See next page f

3 DISTRIBUTION: Docket File NRC & Local PDRs, PDI-3 r/f, SVarga, BBogr.r. I MRushbrookTVNerses,OGC,EJordan,BGrimes,RWessman,ACRS(10)  !

l

! *See previous concurrence OFC :PDI.3 * :PDI.3 * :NRR/5CIB * :PDI.3 '

DI / DI.3  :  :

f.<.....:............:...........

' NAME :DBrinkman:mw:MRushbrook :SNewberry :V . .,.

Nr$5 3.. . . . . :ffk ss  :  : : l I

DATE :0(/1W88 .........:.h :0 .. 19/88 ......:.:047.........:............:............:............:...........

21/88 :0f///88 f :01/Js /88 r

: i i

0FFICIAL RECORD COPY I

- , _ - . _ _ __, _ _ ~ . _ _ . _ , _ _ _ _ . _ . _ , = _ _ _ _ _ _ _ _ _ , . _ - . . _ _ . _ _ _ , , , , __