ML20128H829

Forwards Info Re Commitments to NRC Being Cancelled Due to Permanent Plant Shutdown.Cancelled Commitments Include, Operability Requirement for SI Accumulators in Modes 1,2 & 3 & PORVs

ML20128H829
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	02/11/1993
From:	Cross J, Robinson W PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9302170174
Download: ML20128H829 (3)

Text

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       -                     4 Portland General Electric Company um g                                                                                                                  M James E. Cross - ..

Vice President and Chief Nuclear Officer  ; February 11, 1993. Trojan Nuclear Plant Docket 50-344 , License NPF-1 U.S. Nuclear Regulatory Commission

                         ~ Attn 1    Document Control Desk-                                                                                         ,

Washington DC 20555

Dear Sirs:

t CancellationaL_Comitmenta

          -i                                                                  .

Due to che permanent shutdown of the Trojan Nuclear Plant,-Portland General-

• Electric Company (PGE) is canceling several commitments that were made-
• based on the assumption of continued. operation. These commitments are.

described on the attachment. . PGE is continuing to review commitments made'to the Nuclear Regulatory.

                        ' Commission (NRC).                 Additional commitments identified.that should be                                        '

canceled or modified will be' the subject of future: correspondence.

                                                                                       . Sincerely,-

W ) S1 W.!R.~ Robinson wzod for-J. E. Cross Attachment c c: Mr. John ~B. Martin Regionni Administrator, Region V

                                .U.S.'Nucient F.egulatory Commission Mr. David Stewart-Smith State of:. Oregon.

Department of Energy

                               --Mr. k'enneth Johnston                                                                                         -

NRC. Senior Resident-Inspector Trojan-Nuclear. Plant H A i  :

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9302170174 930211 71 PDR - ~ ADO'.:K 05000344. P' t3 > PDR'

                            -                               .._. CN Salmon Street, Portiand, OR 97204 --                       i                   -

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Trojan Nuclear Plant- -Document control-Desk'-

              . Docket 50-3441                                                       February. 11, 1993-~

License-NPF-1 Attachment Page ILof 21 NUCLEAR REGULATORY COMMISSION (NRC) COMMI'1NENTS MING _CMCELID_ DUEL 0__THILIIRflANENT SIlUTDOWN Of_TROJM. A. Commitment , In a letter dated April 30, 1992, Portland General Electric Company (PGE) committed to inform the NRC of the reeults of the management - review and the schedule'for approved actions resulting from.an-evaluation of design problems with the Containment Process and Effluent Radiation Monitor (PERM). Current _ Action The containment PERM is only required-to be operable for containment-isolat2on in Modes 1 through 4. Since Trojan has been. permanently. defueled, no further_ action will be taken on this issue.- B. Commitment In response to= concerns raiaed during NRC Inspection 50-344/92-07,- PGE committed to review the categorization of1the safety injection i (SI) accumulator check valves. This commitment was documented in NRC Inspection Report No.-50-344/92-07. Current Action The SI accumulators.are only required to be operable in ModesI l ~,12, , and 3. Since Trojan has.been permanently defueled, this review will

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cst be performed. C. Commitment In Licensee Event Report-(LER)'No.-92-10, " Low Temperature-Overpressure System. Design-Basis Requirements;Not Maintained Due <

                           'to Breakdown in Configuration Management". PGE_ committed to: revise

Design. Basis Documents to include critical parameters and key _

g assunptions which needi to be maintained for 'the Low Temperature Overpressure Protection (LTOP) functions and to revise.other

licensing and design documenta as needed'.

                          -Curren't Action Following the'removaltof fuel _from the reactor _ vessel, the-power-operated relief valves ' (PORVs) will .not be required byi ..                       ,

Technical Specifications'to-be operable: therefore, these revisionst will . not- be made. i b Y.

c.

      ;s 4    .      .    .  ..                                                                 .      .
  ~

Trojan Nuclear Plant Document Control: Desk.

             .c   Docket 50-344-                                                -February 11, 1993-    7 License NPF-1:                                                 Attachment 4 .

Page 2 of 2-D. - Cannitment In LER No. 92-10. " Low Temperature Overpressure System Design _ Basis:_ Requirements Not Maintained Due to Breakdown"in Configuration- -, Management",-PGE committed to determine what PORV system modifications,were required based on tests of the backup air 3 accumulators. Cn.rrent Acti2n Following permanent removal of fuel from the reactor vessel, the -.c PORVs will not be required by Technical Specifications to be operable;.therefore,;these modifications will not be made. E. Commitment In the response-to NRC Bulletin 88-08, " Thermal Stresses in Piping Connected to-Reactor Coolant Systems", PGE committed to provide a status to-the NRC of the long term solution to thermal-transients in'- piping connected to the Reactor Coolant System (RCS). Current Action Thermal transients are not a concern while shutdown. Since Trojan- , has been permanently defueled and will not resume reactor power~ operation, no further actions wil1~be taken. F. Cnmmitment In the response to a Notice of Violation dated March' 16,'1992,LPGEl committed to' centralize the event invsstigation process undertone: department. Current _ Action This action was completed with the-establishment of the Independent 1 Safety Review Group (ISRG).='Due to staff-reductionsiassociated vith

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the permanent closure of Trojan, the ISRG is being eliminated.. Event. investigation teams w111'therefore be assigned from the available-fucility staff rather than a single department. BRH/bsh 7328W.0293-

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