RS-06-179, Cover Letter for Additional Information - Application to Use Weighting Factors for External Exposure

Cover Letter for Additional Information - Application to Use Weighting Factors for External Exposure

ML063530361
Person / Time
Site:	Dresden, Peach Bottom, Oyster Creek, Byron, Three Mile Island, Braidwood, Limerick, Clinton, Quad Cities, LaSalle, 07000015, 07201027
Issue date:	12/13/2006
From:	Cowan P AmerGen Energy Co, Exelon Generation Co
To:	Document Control Desk, NRC/FSME
References
2130-06-20438, 5928-06-20602, RS-06-179, TAC MC9247, TAC MC9263
Download: ML063530361 (5)

Text

AmerGen, Exelkn.

An Exelon Company www.exeloncorp.com Nuclear AmerGen Energy Company, LLC 4300 Winfield Road Exelon Generation Warrenville, IL 60555 4300 Winfield Road Warrenville, IL 6o555 10 CFR 20.1003 December 13, 2006 RS-06-179 5928-06-20602 2130-06-20438 U. S. Nuclear Regulatory Commission 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 Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461 Dresden Nuclear Station, Units 1, 2 and 3 Facility Operating License No. DPR-2 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-10, 50-237, 50-249 and 72-37 LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-1 1 and NPF-1 8 NRC Docket Nos. STN 50-373 and STN 50-374 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353 Oyster Creek Generating Station Facility Operating License No. DPR-16 NRC Docket Nos. 50-219 and 72-15

Application to Use Weighting Factors for External Exposure December 13, 2006 Page 2 Peach Bottom Atomic Power Station, Units 1, 2 and 3 Facility Operating License No. DPR-12 Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-171, 50-277, 50-278 and 72-1027 Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 NRC Docket Nos. 50-254, 50-265 Three Mile Island Nuclear Station, Unit 1 Facility Operating License No. DPR-50 NRC Docket Nos. 50-289

Subject:

Additional Information - Application to Use Weighting Factors for External Exposure (TAC Nos. MC9247-MC9263)

Reference:

(1) Letter from P. B. Cowan (Exelon/AmerGen) to USNRC, "Response To Request For Additional Information - Application to Use Weighting Factors for External Exposure," dated September 6, 2006 This letter provides additional information to clarify the commitment previously provided in Reference 1, regarding the Exelon Generation Company, LLC (Exelon) and AmerGen Energy Company, LLC (AmerGen) application to use weighting factors for calculating external whole body dose pursuant to 10 CFR 20.1003, dated December 14, 2005. The commitment is revised to include specific reference to the 1997 version of ANSI/HPS N13.41, consistent with the original application. The commitments previously provided in Reference 1 are restated in with this clarification.

If any additional information is needed, please contact Mr. David J. Distel at (610) 765-5517.

Sincerely, Pamela B. Cowan Director - Licensing & Regulatory Affairs Exelon Generation Company, LLC AmerGen Energy Company, LLC

Enclosures:

(1) List of Regulatory Commitments cc: Regional Administrator - NRC Region I Regional Administrator - NRC Region III NRC Project Manager, NRR - Braidwood Station NRC Project Manager, NRR - Byron Station NRC Project Manager, NRR - Clinton Power Station

Application to Use Weighting Factors for External Exposure December 13, 2006 Page 3 cc: (cont'd)

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 Generating Station NRC Project Manager, NRR - Peach Bottom Atomic Power Station NRC Project Manager, NRR - TMI Unit 1 NRC Project Manager, NRR - Quad Cities Nuclear Power Station NRC Senior Resident Inspector - Braidwood Station NRC Senior Resident Inspector - Byron Station NRC Senior Resident Inspector - Clinton Power Station NRC Senior Resident Inspector - Dresden Nuclear Power Station NRC Senior Resident Inspector - LaSalle County Station NRC Senior Resident Inspector - Limerick Generating Station NRC Senior Resident Inspector - Oyster Creek Generating Station NRC Senior Resident Inspector - Peach Bottom Atomic Power Station NRC Senior Resident Inspector - TMI Unit 1 NRC Senior Resident Inspector - Quad Cities Nuclear Power Station Illinois 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 R. I. McLean, State of Maryland R. R. Janati, Commonwealth of Pennsylvania C. Gratton, NRC Project Manager, NRR - (Exelon/AmerGen Fleet)

ENCLOSURE 1 LIST OF REGULATORY COMMITMENTS

Enclosure 1 List of Regulatory Commitments Page 1 of 1

SUMMARY

OF EXELON/AMERGEN COMMITMENTS The following table identifies commitments made in this document by Exelon/AmerGen.

(Any other actions discussed in the submittal represent intended or planned actions by Exelon/AmerGen. They are described to the NRC for the NRC's information and are not regulatory commitments.)

COMMITMENT COMMITTED DATE OR "OUTAGE" Exelon/AmerGen procedures will be revised to require Upon implementation of NRC that when using the weighting factors in Table 1 of approved use of revised weighting ANSI/HPS N13.41-1997, dosimetry is to be placed at factors.

the highest exposed part of the compartment or composite compartment.

Exelon/AmerGen procedures will be revised to require Upon implementation of NRC an evaluation of the dose gradient across the approved use of revised weighting compartment when determining dosimeter placement. factors.

The deep dose equivalent will be assigned to the part receiving the highest dose.