ML12160A553

Response to NRC Request for Additional Information, Dated May 18, 2012, Related to License Renewal Application

ML12160A553
Person / Time
Site:	Limerick
Issue date:	06/08/2012
From:	Gallagher M Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML12160A553 (5)

Text

Michael P. Gaflagher Teiephone 610.765.5958 Exalt n VlCe President Fax 610.765.5658 Nuclear License Renewa www.exeloncorp.com michaelp.gallagher@exeloncorp.com Exelon Nuclear 200 Exelon Way Kennett Square, PA '9348 10 CFR 50 10 CFR 51 10 CFR 54 June 8. 2012 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

Response to NRC Request for Additional Information, dated May 18, 2012, related to the Limerick Generating Station License Renewal Application

Reference:

1. Exelon Generation Company, LLC letter from Michael P. Gallagher to NRC Document Control Desk, MApplication for Renewed Operating Licenses", dated June 22, 2011

2. Letter from Robert F. Kuntz (NRC) to Michael P. Gallagher (Exelon).

MRequests for Additional Information for the review of the Limerick Generating Station, Units 1 and 2, License Renewal Application (TAC Nos. ME6555, ME6556)", dated May 18, 2012 In the Reference 1 letter, Exelon Generation Company, LLC (Exelon) submitted the License Renewal Application (LRA) for the Limerick Generating Station, Units 1 and 2 (LGS). In the Reference 2 letter, the NRC requested additional information to support the staffs' review of the LRA.

Enclosed is the response to this request for additional information.

This letter and its enclosure contain no new or revised regulatory commitments.

If you have any questions. please contact Mr. AI Fulvio, Manager, Exelon License Renewal, at 610-765-5936.

u.s. Nuclear Regulatory Commission June 8,2012 Page 2 I declare under penalty of perjury that the foregoing is true and correct.

Executed on Respectfully,

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Vice President - License Renewal Projects Exelon Generation Company, LLC

Enclosure:

Response to Request for Additional Information cc: Regional Administrator - NRC Region I NRC Project Manager (Safety Review), NRR-DLR NRC Project Manager (Environmental Review), NRR-DLR NRC Project Manager, NRR- DORL Limerick Generating Station NRC Senior Resident Inspector, Limerick Generating Station R. R. Janati, Commonwealth of Pennsylvania

Enclosure Page 1 of 3 Enclosure Response to Request for Additional Information related to scoping boundaries associated with the LGS License Renewal Application (LRA)

RAI2.3.3-2

Enclosure Page 2 of 3 RAl2.3.3-2

Background

By letter, dated March 9, 2012, the staff issued several requests for additional information (RAI) regarding clarificat10n of scoping boundaries as found in the license renewal boundary drawings. The response to the RAls, provided by letter dated March 20, 2012, described in each instance which of the existing scoping boundaries were either correct or that the scoping boundaries were going to be revised on the license renewal boundary drawings. The following RAls in the March 20, 2012, letter were identified in the RAI response that the license renewal boundary drawings were going to be revised:

• RAI2.3.3-01 (LR-M-78 Sheet 1; LR-M-20 Sheets 4,5,7,10,11, and 13; LR-M-44 Sheet 1; and LR-M-51 Sheet 4)

• RAI2.3.3.12-01 (LR-M-10 Sheet 3 and 8)

• RAI2.3.3.14-01 (LR-M-59 Sheet 1)

• RAI 2.3.3.14-02 (LR-M-59 Sheet 3)

• RAI 2.3.3.22-01 (LR-M-23 Sheet 7)

• RAI2.3.3.22-02 (LR-M-23 Sheet 4)

• RAI 2.3.4-01 (LR-M-41 Sheet 2; LR-M-49 Sheet 1; LR-M-50 Sheet 2; and LR-M-55 Sheet 1)

• RAI 2.3.4.3-01 (LR-M-07 Sheets 1 and 3)

• RAI 2.3.4.6-01 (LR-M-05 Sheets 3 and 6) .

• RAI2.3.4.7-01 (LR-M-05 Sheet 2 and LR-M-07 Sheet 2)

RAI2.3.4.7-02 (LR-M-06 Sheets 2 and 5)

Although the response has described the revisions to be made to the license renewal boundary drawings the staff needs to confirm that the revisions were made in each instance above to complete its review. The staff's confirmatory review will consist of identifying that the system components were appropriately included within the revised scoping boundaries on the license renewal boundary drawings.

Request Provide the revised license renewal boundary drawings for each of the RAls listed above.

Exelon Response The following License Renewal drawings have been revised in accordance with the descriptions of the changes provided in RAI Responses referenced in the RAI Background discussion:

• LR-M-05 Sheets 1, 2, and 3 (Note 1)

• LR-M-06 Sheets 2 and 5

• LR-M-07 Sheets 1, 2 and 3

• LR-M-10 Sheets 3 and 8

• LR-M-20 Sheets 4, 5, 7, 10, 11, and 13

• LR-M-23 Sheets 4 and 7

• LR-M-41 Sheet 2

• LR-M-44 Sheet 1

• LR-M-49 Sheet 1

Enclosure Page 3 of 3

• LR-M-50 Sheet 2

• LR-M-51 Sheet 4

• LR-M-55 Sheet 1

• LR-M-59 Sheets 1 and 3

• LR-M-78 Sheet 1 Note 1 - The response to RAI 2.3.4.6-1, provided within the letter dated March 20, 2012, described changes to drawings LR-M-05 Sheets 1 and 3, but mistakenly referenced Sheet 6 in the last sentence. The last sentence in the response should have read, "LR-M-05 Sheet 1 and Sheet 3 will be revised to show the transition from in scope piping to piping not in scope for the three oily waste drain pipes, and a Note 3 will be added at each location to describe the basis for the change from red to black." Therefore, it is clarified that LR-M-05 Sheets 1 and 3 were revised and not Sheet 6. LR-M-05 Sheet 2 was revised as described in the response to RAI 2.3.4.7-1.

These drawing revisions were reviewed by the NRC regional inspectors during the first week of the NRC IP 71002 regional inspection conducted June 4 through June 8, 2012. It was agreed with the NRC License Renewal Project Manager that Exelon need not submit the revised license renewal boundary drawings for each of the RAls referenced in the above Background discussion.