4300 Winfield Road Warrenville. IL60555 ANExelon Generation@ www.exeloncorp.com

SAFEGUARDS INFORMATION

10CFR50.54(p)

RS-13-001 RA-13-001 TMI-13-001

January 17, 2013

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457

Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455

Clinton Facility Operating License No. NPF-62 NRC Docket No. 50-461

Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating Lice se NOS. NRC Docket Nos. 50-237 and 5T-249 Name. tiff., Organiton of Ind~vdual LaSalle County Station, Units 1 ind 2 DefrinIfgCie Bl~fic"tOIU

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NRC Docket Nos. 50-373 and 5¶-:k•i J't,,,,, -.- oV, 1 ,,,yr , ,

Limerick Generating Station, Un :s o.U,•f - Facility Operating License Nos. IFV fjalbfa ,. 17 ,&,='- .2.(3 NRC Docket Nos. 50-352 and ý5 smiutgsugne. -

Oyster Creek Nuclear Generatin I SGI.M89W' 03 SUNSI(2.390) 0 Renewed Facility Operating Lice ise No. DDIiadliorized Disclosure Will Be Subject NRC Docket No. 50-219 To Civil And Criminal Sanctions

Attachments I thru 10 contain Safeguards Information. When separated from Attachments 1 thru 10, this cover letter is decontrolled.

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U.S. Nuclear Regulatory Commission //7/ 4 JonuAry04 ...... o Page 2

Peach Bottom Atomic Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277 and 50-278

Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 NRC Docket Nos. 50-254 and 50-265

Three Mile Island Nuclear Station, Unit 1 Renewed Facility Operating License No. DPR-50 NRC Docket No. 50-289

Subject: Response to NRC Request for Additional Information Involving Site Security Plan, Training and Qualification Plan, and Safeguards Contingency Plan

References: 1. Updated Physical Security Plans, Training and Qualification Plans, and Safeguards Contingency Plans dated July 12 (Limerick only) and July 13, 2012 (Braidwood Station, Byron Station, Clinton Power Station, Dresden Nuclear Power Station, LaSalle County Station, Oyster Creek Nuclear Generating Station, Peach Bottom Atomic Power Station, Quad Cities Nuclear Power Station, and Three Mile Island Nuclear Station)

2. Request for Additional Information - e-mail from Joel Wiebe (USNRC) to David P. Helker () dated December 4, 2012

Exelon Generation Company, LLC (Exelon) submitted the updated Physical Security Plans, Training and Qualification Plans, and Safeguards Contingency Plans involving the stations listed above via the Reference 1 letters. In the Reference 2 correspondence, the NRC requested additional information. Attached is the Exelon response to the Reference 2 questions.

This letter contains no regulatory commitments. If you have any questions regarding this response, please contact David P. Helker at 610-765-5525.

Respectfully submitted,

Glen T. Kaegi Director, Licensing and Regulatory Affairs Exelon Generation Company, LLC

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U.S. Nuclear Regulatory Commission January 17, 2013 Page 3 Attachments (Safeguards Information): 1. Response to Request for Additional Information - Braidwood Station 2. Response to Request for Additional Information - Byron Station 3. Response to Request for Additional Information - Clinton Power Station 4. Response to Request for Additional Information - Dresden Nuclear Power Station 5. Response to Request for Additional Information - LaSalle County Station 6. Response to Request for Additional Information - Limerick Generating Station 7. Response to Request for Additional Information - Oyster Creek Nuclear Generating Station 8. Response to Request for Additional Information - Peach Bottom Atomic Power Station 9. Response to Request for Additional Information - Quad Cities Nuclear Power Station 10. Response to Request for Additional Information - Three Mile Island Nuclear Station cc: (with Safeguards Attachments) USNRC Exelon Fleet Project Manager, NRR cc: (without Safeguards Attachments) USNRC Region I, Regional Administrator USNRC Region III, Regional Administrator USNRC Senior Resident Inspector - Braidwood Station USNRC Senior Resident Inspector - Byron Station USNRC Senior Resident Inspector - Clinton Power Station USNRC Senior Resident Inspector - Dresden Nuclear Power Station USNRC Senior Resident Inspector - LaSalle County Station USNRC Senior Resident Inspector - Limerick Generating Station USNRC Senior Resident Inspector - Oyster Creek Nuclear Generating Station USNRC Senior Resident Inspector - Peach Bottom Atomic Power Station USNRC Senior Resident Inspector - Quad Cities Nuclear Power Station USNRC Senior Resident Inspector - Three Mile Island Nuclear Station NRC Project Manager, NRR - Braidwood Station NRC Project Manager, NRR - Byron Station NRC Project Manager, NRR - Clinton Power Station NRC Project Manager, NRR - Dresden Nuclear Power Station NRC Project Manager, NRR - LaSalle County Station NRC Project Manager, NRR - Limerick Generating Station NRC Project Manager, NRR - Oyster Creek Nuclear Generating Station NRC Project Manager, NRR - Peach Bottom Atomic Power Station NRC Project Manager, NRR - Quad Cities Nuclear Power Station NRC Project Manager, NRR - Three Mile Island Nuclear Station, Unit 1 Emergency Management Agency - Division of Nuclear Safety Director, Bureau of Radiation Protection - Pennsylvania Department of Environmental Resources Director, Bureau of Nuclear Engineering - New Jersey Department of Environmental Protection Chairman, Board of County Commissioners of Dauphin County, PA Chairman, Board of Supervisors of Londonderry Township, PA Mayor of Lacey Township, Forked River, NJ S. T. Gray, State of Maryland R. R. Janati, Commonwealth of Pennsylvania

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U.S. Nuclear Regulatory Commission January 17, 2013 Page 4 bcc: (without Safeguards Attachments) Site Vice President - Braidwood Station Site Vice President - Byron Station Site Vice President - Clinton Power Station Site Vice President - Dresden Nuclear Power Station Site Vice President - LaSalle County Station Site Vice President - Limerick Generating Station Site Vice President - Oyster Creek Nuclear Generating Station Site Vice President - Peach Bottom Atomic Power Station Site Vice President - Quad Cities Nuclear Power Station Site Vice President - Three Mile Island Nuclear Station Vice President - Operations Support Regulatory Assurance Manager - Braidwood Station Regulatory Assurance Manager - Byron Station Regulatory Assurance Manager - Clinton Power Station Regulatory Assurance Manager - Dresden Nuclear Power Station Regulatory Assurance Manager - LaSalle County Station Regulatory Assurance Manager - Limerick Generating Station Regulatory Assurance Manager - Oyster Creek Nuclear Generating Station Regulatory Assurance Manager - Peach Bottom Atomic Power Station Regulatory Assurance Manager - Quad Cities Nuclear Power Station Regulatory Assurance Manager - Three Mile Island Nuclear Station Site Security Manager - Braidwood Station Site Security Manager - Byron Station Site Security Manager - Clinton Power Station Site Security Manager - Dresden Nuclear Power Station Site Security Manager - LaSalle County Station Site Security Manager - Limerick Generating Station Site Security Manager - Oyster Creek Nuclear Generating Station Site Security Manager - Peach Bottom Atomic Power Station Site Security Manager - Quad Cities Nuclear Power Station Site Security Manager - Three Mile Island Nuclear Station Corporate Licensing Manager - East Corporate Licensing Managers - West Corporate Licensing Director - East Corporate Licensing Director - West Exelon Records Management Commitment Tracking Coordinator - East Commitment Tracking Coordinator - West PA DEP BRP Inspector- LGS

SAFEGUARDS INFORMATION