ML062680331

RAI Regarding Inservice Inspection Program Alignment of Inservice Inspection and Containment Inservice Inspection Intervals

ML062680331
Person / Time
Site:	Limerick
Issue date:	10/11/2006
From:	Richard Guzman NRC/NRR/ADRO/DORL/LPLI-1
To:	Crane C Exelon Generation Co, Exelon Nuclear
Kim J, NRR/ADIP/NRLPO, 415-4125
References
TAC MD2727, TAC MD2728
Download: ML062680331 (6)

Text

October 11, 2006 Mr. Christopher M. Crane President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348

SUBJECT:

LIMERICK GENERATING STATION UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING INSERVICE INSPECTION PROGRAM - ALIGNMENT OF INSERVICE INSPECTION AND CONTAINMENT INSERVICE INSPECTION INTERVALS (TAC NOS. MD 2727 AND MD 2728)

Dear Mr. Crane:

By letter dated August 4, 2006, Exelon Generation Company, LLC submitted a relief request to reduce the duration of the Limerick Generating Station (LGS), Unit No. 2 second inservice inspection (ISI) interval in order to create a common ISI interval for LGS Units 1 and 2.

The Nuclear Regulatory Commission has determined that a response to the enclosed request for additional information (RAI) is necessary in order for the staff to complete its review. The questions in the RAI are similar to those that were discussed with Mr. Thomas Loomis and others of your staff during a telephone call on September 21, 2006.

In order to complete our timely review of your amendment request, we request your response within 21 days from the date of this letter. If you have any questions, please contact James Kim at 301-415-4125.

Sincerely,

/RA/

Richard V. Guzman, Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353

Enclosure:

As stated cc w/encl: See next page

October 11, 2006 Mr. Christopher M. Crane President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348

SUBJECT:

LIMERICK GENERATING STATION UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING INSERVICE INSPECTION PROGRAM - ALIGNMENT OF INSERVICE INSPECTION AND CONTAINMENT INSERVICE INSPECTION INTERVALS (TAC NOS. MD 2727 AND MD 2728)

Dear Mr. Crane:

By letter dated August 4, 2006, Exelon Generation Company, LLC submitted a relief request to reduce the duration of the Limerick Generating Station (LGS), Unit No. 2 second inservice inspection (ISI) interval in order to create a common ISI interval for LGS Units 1 and 2.

The Nuclear Regulatory Commission has determined that a response to the enclosed request for additional information (RAI) is necessary in order for the staff to complete its review. The questions in the RAI are similar to those that were discussed with Mr. Thomas Loomis and others of your staff during a telephone call on September 21, 2006.

In order to complete our timely review of your amendment request, we request your response within 21 days from the date of this letter. If you have any questions, please contact James Kim at 301-415-4125.

Sincerely,

/RA/

Richard V. Guzman, Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353

Enclosure:

As stated cc w/encl: See next page DISTRIBUTION:

PUBLIC LPL1-2 R/F RidsNrrDorlLpl1-2 RidsNrrPMJKim RidsNrrLACRaynor RidsOgcRp RidsNrrPMRGuzman RidsRgn1MailCenter RJackson DJeng RidsAcrsAcnwMailCenter Accession Number: ML062680331 OFFICE LPL1-2/PE LPL1-1/PM EGCB/BC LPL1-2/LA LPL1-2/BC NAME JKim:osr RGuzman SSamaddar CRaynor HChernoff DATE 10/3/06 10/4/06 10/4/06 10/4/06 10/11/06 Official Record Copy

REQUEST FOR ADDITIONAL INFORMATION LIMERICK GENERATING STATION UNITS 1 AND 2 INSERVICE INSPECTION PROGRAM - ALIGNMENT OF INSERVICE INSPECTION AND CONTAINMENT INSERVICE INSPECTION INTERVALS By letter dated August 4, 2006, Exelon Generation Company, LLC submitted a relief request to reduce the duration of the Limerick Generating Station (LGS), Unit No. 2 second inservice inspection (ISI) interval in order to create a common ISI interval for LGS Units 1 and 2.

The Nuclear Regulatory Commission has determined that a response to this request for additional information is necessary in order for the staff to complete its review. The questions in the RAI are similar to those that were discussed with Mr. Thomas Loomis and others of your staff during a telephone call on September 21, 2006.

1. With respect to the last paragraph of Section 4.0 of the submitted dated August 4, 2006, Reason for Request (page 2 of 6), it is stated that, Any examination methods unique to and specifically required in the remainder of the LGS, Unit 2 Third Period under the previous ISI [inservice inspection] Interval Code (i.e., American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, 1989 Edition), that will likewise be required in the next ISI Interval, will be scheduled and completed in the First Period of this subsequent interval.

List and discuss the LGS Unit 2 specific items that are within the category of any examination methods unique to and specifically required in the remainder of the Limerick Generating Station Unit 2 third period under the previous ISI interval code, that will likewise be required in the next ISI Interval, and will be scheduled and completed in the first period of the third ISI interval. As applicable, list and clarify those items that are specifically required in the remainder of the LGS Unit 2 third period under the previous ISI interval code, but will not be scheduled and completed in the first period of the third ISI interval. Discuss the potential implication of the above with respect to the Exelon Generation Companys (EGCs) stated intent of providing an acceptable level of quality and safety pursuant to Section 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations.

2. With respect to the third paragraph of page 3 of 6, under Section 4.0, Reason for Request, it is stated that, ...For the IWE portion of the program, the examinations scheduled for the first, second, and third inspection periods Limerick Generating Station, Unit 1 have been completed, and the examinations scheduled for the first and second inspection periods for Limerick, Unit 2 have been completed... As applicable, clarify EGCs intended disposition of the examination items that might have been scheduled for the third inspection period of the first interval condenser inservice inspection (CISI) program for the LGS Unit 2. Also, with respect to the rolling IWL portion of the LGS CISI programs, discuss EGCs recent inspection activities and results, and their key inspection milestones.

Enclosure

Limerick Generating Station, Unit Nos. 1 and 2 cc:

Site Vice President Assistant General Counsel Limerick Generating Station Exelon Generation Company, LLC Exelon Generation Company, LLC 200 Exelon Way P.O. Box 2300 Kennett Square, PA 19348 Sanatoga, PA 19464 Correspondence Control Desk Plant Manager Exelon Generation Company, LLC Limerick Generating Station P.O. Box 160 Exelon Generation Company, LLC Kennett Square, PA 19348 P.O. Box 2300 Sanatoga, PA 19464 Regional Administrator, Region I U.S. Nuclear Regulatory Commission Regulatory Assurance Manager - Limerick 475 Allendale Road Exelon Generation Company, LLC King of Prussia, PA 19406 P.O. Box 2300 Sanatoga, PA 19464 Senior Resident Inspector U.S. Nuclear Regulatory Commission Senior Vice President - Nuclear Services Limerick Generating Station Exelon Generation Company, LLC P.O. Box 596 4300 Winfield Road Pottstown, PA 19464 Warrenville, IL 60555 Library Vice President - Operations, Mid-Atlantic U.S. Nuclear Regulatory Commission Exelon Generation Company, LLC Region I 200 Exelon Way, KSA 3-N 475 Allendale Road Kennett Square, PA 19348 King of Prussia, PA 19406 Vice President Director, Bureau of Radiation Protection Licensing and Regulatory Affairs Pennsylvania Dept. of Environmental Exelon Generation Company, LLC Protection 4300 Winfield Road Rachel Carson State Office Building Warrenville, IL 60555 P.O. Box 8469 Harrisburg, PA 17105-8469 Director Licensing and Regulatory Affairs Chairman Exelon Generation Company, LLC Board of Supervisors of Limerick Township 200 Exelon Way, KSA 3-E 646 West Ridge Pike Kennett Square, PA 19348 Linfield, PA 19468 Manager Licensing Dr. Judith Johnsrud Limerick Generating Station National Energy Committee Exelon Generation Company, LLC Sierra Club 200 Exelon Way, KSA 3-E 433 Orlando Avenue Kennett Square, PA 19348 State College, PA 16803