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{{#Wiki_filter:January 29, 2008  
{{#Wiki_filter:January 29, 2008 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348
 
Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348


==SUBJECT:==
==SUBJECT:==
THREE MILE ISLAND NUCLEAR STATION, UNIT 1 - ACKNOWLEDGMENT OF ACTIONS TAKEN FOR CONFIRMATORY ACTION LETTER NRR-07-029 (TAC NO. MD4191)  
THREE MILE ISLAND NUCLEAR STATION, UNIT 1 - ACKNOWLEDGMENT OF ACTIONS TAKEN FOR CONFIRMATORY ACTION LETTER NRR-07-029 (TAC NO. MD4191)


==Dear Mr. Pardee:==
==Dear Mr. Pardee:==


On March 22, 2007, the U.S. Nuclear Regulatory Commission (NRC) issued Confirmatory Action Letter (CAL) No. NRR-07-029 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070740631) regarding dissimilar metal welds in the pressurizer at Three Mile Island Nuclear Station, Unit 1 (TMI-1). This letter acknowledges receipt of your letter dated December 4, 2007 (ADAMS Accession No. ML073390388) informing the NRC of actions taken in response to this CAL.  
On March 22, 2007, the U.S. Nuclear Regulatory Commission (NRC) issued Confirmatory Action Letter (CAL) No. NRR-07-029 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070740631) regarding dissimilar metal welds in the pressurizer at Three Mile Island Nuclear Station, Unit 1 (TMI-1). This letter acknowledges receipt of your letter dated December 4, 2007 (ADAMS Accession No. ML073390388) informing the NRC of actions taken in response to this CAL.
 
In your letter, you stated that during November 2007, TMI-1 replaced the pressurizer safety/relief nozzle butt welds with Primary Water Stress Corrosion Cracking (PWSCC) resistant material and welds and installed a full structural weld overlay repair on the pressurizer surge nozzle. In addition, TMI-1 inspected the pressurizer spray nozzle-to-safe end and safe end-to-elbow welds with Performance Demonstration Initiative (PDI) qualified ultrasonic examination techniques.
In your letter, you stated that during November 2007, TMI-1 replaced the pressurizer safety/relief nozzle butt welds with Primary Water Stress Corrosion Cracking (PWSCC) resistant material and welds and installed a full structural weld overlay repair on the pressurizer surge nozzle. In addition, TMI-1 inspected the pressurizer spray nozzle-to-safe end and safe end-to-elbow welds with Performance Demonstration Initiative (PDI) qualified ultrasonic examination techniques.
The ultrasonic examinations obtained 100-percent coverage and no degradation was identified.  
The ultrasonic examinations obtained 100-percent coverage and no degradation was identified.
 
Based on your letter, the NRC understands that the pressurizer safety/relief nozzle butt welds have been replaced with PWSCC resistant material and welds, the pressurizer surge nozzle has been mitigated with a full structural weld overlay, and the pressurizer spray nozzle-to-safe end weld and safe end-to-elbow weld have been examined with PDI-qualified techniques in which 100-percent coverage was obtained and no degradation was identified. This completes portions of the commitments listed in the CAL and supporting commitment letter dated February 21, 2007 (ADAMS Accession No. ML070520499). As a result of these actions, it is no longer necessary to implement enhanced inspection and leakage monitoring requirements for the reactor coolant system. The commitment to reexamine unmitigated welds, using ultrasonic techniques, within every 4 years remains open. The CAL will remain open until all commitments are completed. However, based on actions completed to date, TAC No. MD4191 will be closed.
Based on your letter, the NRC understands that the pressurizer safety/relief nozzle butt welds have been replaced with PWSCC resistant material and welds, the pressurizer surge nozzle has been mitigated with a full structural weld overlay, and the pressurizer spray nozzle-to-safe end weld and safe end-to-elbow weld have been examined with PDI-qualified techniques in which 100-percent coverage was obtained and no degradation was identified. This completes portions of the commitments listed in the CAL and supporting commitment letter dated February 21, 2007 (ADAMS Accession No. ML070520499). As a result of these actions, it is no longer necessary to implement enhanced inspection and leakage monitoring requirements for the reactor coolant system. The commitment to reexamine unmitigated welds, using ultrasonic techniques, within every 4 years remains open. The CAL will remain open until all commitments are completed. However, based on actions completed to date, TAC No. MD4191 will be closed. Additional TACs will be opened, as needed, to review fu ture actions.  
Additional TACs will be opened, as needed, to review future actions.
 
Thank you for informing us of the actions documented in your letter. These actions may be examined during a future NRC inspection of your facility.
Thank you for informing us of the actions documented in your letter. These actions may be examined during a future NRC inspection of your facility.  
 
Current NRC guidance regarding CALs is contained in the NRC Enforcement Policy and the NRC Enforcement Manual, which are available on the NRC web site at http://www.nrc.gov/about-nrc/regulatory/enforcement.html (click on Enforcement Policy or Enforcement Guidance) or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).
 
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and your response will be made available electronically for public inspection in t he NRC Public Document Room or from the NRC
=s document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm.html.
Sincerely, /ra/
Catherine Haney, Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
 
Docket No. 50-289
 
cc:  See next page 
 
ML080040292 OFFICE  DCI/CPNB  DCI/CPNB  LPL1-2/PM LPL1-2/LA LPL1-2/BC
 
NAME  TLupold  TChan  PBamford  ABaxter  HChernoff
 
DATE  1/08/08  1/16/08  1/04/08  1/08/08  1/24/08 OFFICE  DCI/D  DRP/D R1  DORL/D NAME  MEvans  DLew  CHaney DATE  1/17/08  1/14/08  1/29/08 Three Mile Island Nuclear Station, Unit 1
 
cc:
 
Site Vice President - Three Mile Island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P. O. Box 480 Middletown, PA  17057
 
Vice President - Operations, Mid-Atlantic AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA  19348
 
Vice President - Licensing and Regulatory Affairs AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL  60555
 
Regional Administrator Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA  19406
 
Chairman Board of County Commissioners of Dauphin County Dauphin County Courthouse Harrisburg, PA  17120
 
Chairman Board of Supervisors of Londonderry Township R.D. #1, Geyers Church Road Middletown, PA  17057
 
Senior Resident Inspector (TMI-1)
U.S. Nuclear Regulatory Commission P.O. Box 219 Middletown, PA  17057
 
Director - Licensing and Regulatory Affairs AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA  19348
 
Director Bureau of Radiation Protection Pennsylvania Department of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469
 
Plant Manager - Three Mile Island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P. O. Box 480 Middletown, PA  17057
 
Regulatory Assurance Manager - Three Mile Island Nuclear Station, Unit 1 AmerGen Energy Company, LLC P.O. Box 480 Middletown, PA  17057
 
Ronald Bellamy, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA  19406
 
Michael A. Schoppman Framatome ANP Suite 705 1911 North Ft. Myer Drive Rosslyn, VA  22209
 
Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA  16803
 
Eric Epstein TMI Alert
 
4100 Hills dale Road Harrisburg, PA  17112
 
Correspondence Control Desk AmerGen Energy Company, LLC P.O. Box 160 Kennett Square, PA  19348 Three Mile Island Nuclear Station, Unit 1
 
cc:


Manager Licensing - Three Mile Island Nuclear Station, Unit 1 Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA  19348
C. Pardee                                  Current NRC guidance regarding CALs is contained in the NRC Enforcement Policy and the NRC Enforcement Manual, which are available on the NRC web site at http://www.nrc.gov/about-nrc/regulatory/enforcement.html (click on Enforcement Policy or Enforcement Guidance) or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and your response will be made available electronically for public inspection in the NRC Public Document Room or from the NRC=s document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm.html.
Sincerely,
                                            /ra/
Catherine Haney, Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289 cc: See next page


Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555
ML080040292 OFFICE        DCI/CPNB        DCI/CPNB          LPL1-2/PM      LPL1-2/LA      LPL1-2/BC NAME          TLupold        TChan            PBamford        ABaxter        HChernoff DATE          1/08/08        1/16/08          1/04/08        1/08/08        1/24/08 OFFICE      DCI/D            DRP/D R1          DORL/D NAME        MEvans          DLew              CHaney DATE        1/17/08          1/14/08          1/29/08


Assistant General Counsel AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348  
Three Mile Island Nuclear Station, Unit 1 cc:
Site Vice President - Three Mile Island Nuclear  Director Station, Unit 1                                  Bureau of Radiation Protection AmerGen Energy Company, LLC                      Pennsylvania Department of P. O. Box 480                                      Environmental Protection Middletown, PA 17057                              Rachel Carson State Office Building P.O. Box 8469 Vice President - Operations, Mid-Atlantic        Harrisburg, PA 17105-8469 AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-N                          Plant Manager - Three Mile Island Nuclear Kennett Square, PA 19348                          Station, Unit 1 AmerGen Energy Company, LLC Vice President - Licensing and Regulatory Affairs P. O. Box 480 AmerGen Energy Company, LLC                      Middletown, PA 17057 4300 Winfield Road Warrenville, IL 60555                            Regulatory Assurance Manager - Three Mile Island Nuclear Station, Unit 1 Regional Administrator                            AmerGen Energy Company, LLC Region I                                          P.O. Box 480 U.S. Nuclear Regulatory Commission                Middletown, PA 17057 475 Allendale Road King of Prussia, PA 19406                        Ronald Bellamy, Region I U.S. Nuclear Regulatory Commission Chairman                                          475 Allendale Road Board of County Commissioners                    King of Prussia, PA 19406 of Dauphin County Dauphin County Courthouse                        Michael A. Schoppman Harrisburg, PA 17120                              Framatome ANP Suite 705 Chairman                                          1911 North Ft. Myer Drive Board of Supervisors                              Rosslyn, VA 22209 of Londonderry Township R.D. #1, Geyers Church Road                      Dr. Judith Johnsrud Middletown, PA 17057                              National Energy Committee Sierra Club Senior Resident Inspector (TMI-1)                433 Orlando Avenue U.S. Nuclear Regulatory Commission                State College, PA 16803 P.O. Box 219 Middletown, PA 17057                              Eric Epstein TMI Alert Director - Licensing and Regulatory Affairs      4100 Hillsdale Road AmerGen Energy Company, LLC                      Harrisburg, PA 17112 200 Exelon Way, KSA 3-E Kennett Square, PA 19348                          Correspondence Control Desk AmerGen Energy Company, LLC P.O. Box 160 Kennett Square, PA 19348


Associate General Counsel Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555}}
Three Mile Island Nuclear Station, Unit 1 cc:
Manager Licensing - Three Mile Island Nuclear Station, Unit 1 Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 Assistant General Counsel AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348 Associate General Counsel Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555}}

Revision as of 21:41, 14 November 2019

Acknowledgment of Actions Taken for Confirmatory Action Letter NRR-07-029
ML080040292
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 01/29/2008
From: Catherine Haney
Plant Licensing Branch III-2
To: Pardee C
AmerGen Energy Co
Bamford, Peter J., NRR/DORL 415-2833
References
TAC MD4191, NRR-07-029
Download: ML080040292 (5)
v • d • e


Text

January 29, 2008 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348

SUBJECT:

THREE MILE ISLAND NUCLEAR STATION, UNIT 1 - ACKNOWLEDGMENT OF ACTIONS TAKEN FOR CONFIRMATORY ACTION LETTER NRR-07-029 (TAC NO. MD4191)

Dear Mr. Pardee:

On March 22, 2007, the U.S. Nuclear Regulatory Commission (NRC) issued Confirmatory Action Letter (CAL) No. NRR-07-029 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070740631) regarding dissimilar metal welds in the pressurizer at Three Mile Island Nuclear Station, Unit 1 (TMI-1). This letter acknowledges receipt of your letter dated December 4, 2007 (ADAMS Accession No. ML073390388) informing the NRC of actions taken in response to this CAL.

In your letter, you stated that during November 2007, TMI-1 replaced the pressurizer safety/relief nozzle butt welds with Primary Water Stress Corrosion Cracking (PWSCC) resistant material and welds and installed a full structural weld overlay repair on the pressurizer surge nozzle. In addition, TMI-1 inspected the pressurizer spray nozzle-to-safe end and safe end-to-elbow welds with Performance Demonstration Initiative (PDI) qualified ultrasonic examination techniques.

The ultrasonic examinations obtained 100-percent coverage and no degradation was identified.

Based on your letter, the NRC understands that the pressurizer safety/relief nozzle butt welds have been replaced with PWSCC resistant material and welds, the pressurizer surge nozzle has been mitigated with a full structural weld overlay, and the pressurizer spray nozzle-to-safe end weld and safe end-to-elbow weld have been examined with PDI-qualified techniques in which 100-percent coverage was obtained and no degradation was identified. This completes portions of the commitments listed in the CAL and supporting commitment letter dated February 21, 2007 (ADAMS Accession No. ML070520499). As a result of these actions, it is no longer necessary to implement enhanced inspection and leakage monitoring requirements for the reactor coolant system. The commitment to reexamine unmitigated welds, using ultrasonic techniques, within every 4 years remains open. The CAL will remain open until all commitments are completed. However, based on actions completed to date, TAC No. MD4191 will be closed.

Additional TACs will be opened, as needed, to review future actions.

Thank you for informing us of the actions documented in your letter. These actions may be examined during a future NRC inspection of your facility.

C. Pardee Current NRC guidance regarding CALs is contained in the NRC Enforcement Policy and the NRC Enforcement Manual, which are available on the NRC web site at http://www.nrc.gov/about-nrc/regulatory/enforcement.html (click on Enforcement Policy or Enforcement Guidance) or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).

In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and your response will be made available electronically for public inspection in the NRC Public Document Room or from the NRC=s document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm.html.

Sincerely,

/ra/

Catherine Haney, Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289 cc: See next page

ML080040292 OFFICE DCI/CPNB DCI/CPNB LPL1-2/PM LPL1-2/LA LPL1-2/BC NAME TLupold TChan PBamford ABaxter HChernoff DATE 1/08/08 1/16/08 1/04/08 1/08/08 1/24/08 OFFICE DCI/D DRP/D R1 DORL/D NAME MEvans DLew CHaney DATE 1/17/08 1/14/08 1/29/08

Three Mile Island Nuclear Station, Unit 1 cc:

Site Vice President - Three Mile Island Nuclear Director Station, Unit 1 Bureau of Radiation Protection AmerGen Energy Company, LLC Pennsylvania Department of P. O. Box 480 Environmental Protection Middletown, PA 17057 Rachel Carson State Office Building P.O. Box 8469 Vice President - Operations, Mid-Atlantic Harrisburg, PA 17105-8469 AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-N Plant Manager - Three Mile Island Nuclear Kennett Square, PA 19348 Station, Unit 1 AmerGen Energy Company, LLC Vice President - Licensing and Regulatory Affairs P. O. Box 480 AmerGen Energy Company, LLC Middletown, PA 17057 4300 Winfield Road Warrenville, IL 60555 Regulatory Assurance Manager - Three Mile Island Nuclear Station, Unit 1 Regional Administrator AmerGen Energy Company, LLC Region I P.O. Box 480 U.S. Nuclear Regulatory Commission Middletown, PA 17057 475 Allendale Road King of Prussia, PA 19406 Ronald Bellamy, Region I U.S. Nuclear Regulatory Commission Chairman 475 Allendale Road Board of County Commissioners King of Prussia, PA 19406 of Dauphin County Dauphin County Courthouse Michael A. Schoppman Harrisburg, PA 17120 Framatome ANP Suite 705 Chairman 1911 North Ft. Myer Drive Board of Supervisors Rosslyn, VA 22209 of Londonderry Township R.D. #1, Geyers Church Road Dr. Judith Johnsrud Middletown, PA 17057 National Energy Committee Sierra Club Senior Resident Inspector (TMI-1) 433 Orlando Avenue U.S. Nuclear Regulatory Commission State College, PA 16803 P.O. Box 219 Middletown, PA 17057 Eric Epstein TMI Alert Director - Licensing and Regulatory Affairs 4100 Hillsdale Road AmerGen Energy Company, LLC Harrisburg, PA 17112 200 Exelon Way, KSA 3-E Kennett Square, PA 19348 Correspondence Control Desk AmerGen Energy Company, LLC P.O. Box 160 Kennett Square, PA 19348

Three Mile Island Nuclear Station, Unit 1 cc:

Manager Licensing - Three Mile Island Nuclear Station, Unit 1 Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 Assistant General Counsel AmerGen Energy Company, LLC 200 Exelon Way Kennett Square, PA 19348 Associate General Counsel Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

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