ML082890439

Selected Licensee Commitments Manual (SLC) Revision

ML082890439
Person / Time
Site:	Oconee
Issue date:	09/17/2008
From:	Baxter D Duke Energy Carolinas, Duke Energy Corp
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML082890439 (21)

Text

Duke DAw BAXTER Vice President SEnergy. Oconee Nuclear Station Duke Energy Corporation ON0I VP17800 Rochester Highway Seneca, SC 29672 864-885-4460 864-885-4208 fax dabaxter@dukeenergy.com September 17, 2008 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555

Subject:

Duke Energy Carolinas, LLC Oconee Nuclear Station Docket 50-269, -270, -287 Selected Licensee Commitments Manual (SLC)

Gentlemen:

Pursuant to 10CFR 50.4 and 50.71, please find attached the latest revisions to the Oconee Selected Licensee Commitments Manual (SLC). SLC Change 2006-09 will revise SLC 16.11.1, Radioactive Liquid Effluents, to delete the commitment and condition associated with the Chemical treatment Ponds, specifically commitment 16.11.1 (d) and Condition d.

Adequate controls within procedures, new liners, and the rerouting of spent radioactive resin to the Radwaste Facility provide justification for this change.

Very truly yours, Dave B ter Vice President Oconee Nuclear Station RGJ/rgj Attachment

-/ 053 www. duke-energy.com

U.S. Nuclear Regulatory Commission September 17, 2008 Page 2 xc: Mr. Luis Reyes Regional Administrator, Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. Lenny Olshan Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8 G9A Washington, DC 20555 Mr. Andy Hutto Senior NRC Resident Inspector Oconee Nuclear Station Bxc: ELL ONS Document Management MR Coordinator (Ron Harris)

September 17, 2008

Subject:

Oconee Selected Licensee Commitments Manual (SLC)

Revision On 6/26/08, Station Management approved Selected Licensee Commitments Change SLC 2006-09 to revise SLCI6.11.1, Radioactive Liquid Effluents, to delete the commitment and condition associated with the Chemical treatment Ponds, specifically commitment 16.11.1 (d) and Condition d.

Adequate controls within procedures, new liners, and the rerouting. of spent radioactive resin to the Radwaste Facility provide justification for this change.

Please revise your manual as instructed below.

Remove these pages Insert these pages LOEP 1-12 LOEP 1-12 SlC Page 16.11.1 SLC Page 16.11.1-1 SlC Page 16.11.2 SLC Page 16.11.1-2 SIC Page 16.11.3 SLC Page 16.11.1-3 SIC Page 16.11.4 SLC Page 16.11.1-4 SlC Page 16.11.5 SLC Page 16.11.1-5 SlC Page 16.11.6 SLC Page 16.11.1-6 SIC Page 16.11.7 SLC Page 16.11.1-7 Any questions concerning these revisions may be directed to Reene' Gambrell at 864-885-3364.

By: Gail Joyner Regulatory Compliance

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages PaQe Revision Date LOEP 1 08/14/08 LOEP 2 2/05/08 LOEP 3 3/31/08 LOEP 4 3/9/06 LOEP 5 1/04/07 LOEP 6 02/05/08 LOEP 7 3/10/08 LOEP 8 06/30/08 LOEP 9 08/14/08 LOEP 10 12/04/07 LOEP 11 11/08/07 LOEP 12 9/10/07 16.0-1 06/30/08 16.0-2 06/30/08 16.0-3 06/30/08 16.0-4 06/30/08 16.0-5 06/30/08 16.0-6 06/30/08 16.1-1 10/15/07 16.2-1 3/27/99 16.2-2 3/27/99 16.2-3 3/27/99 16.3-1 3/27/99 16.5.1-1 7/18/00 16.5.1-2 7/18/00 16.5.1-3 7/18/00 16.5.2-1 5/11/99 16.5.2-2 5/11/99 16.5.2-3, 5/11/99 16.5.2-4 Delete 5/11/99 16.5.2-5 Delete 5/11/99 16.5.3-1 02/21/07 16.5.3-2 02/21/07 16.5.3-3 02/21/07 16.5.4-1 1/05/06 16.5.4-2 1/05/06 16.5.5-1 6/28/07 16.5.5-2 6/28/07 16.5.5-3 6/28/07 16.5.5-4 6/28/07 16.5.5-5 6/28/07 LOEP 1

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Pa e Revision Date 16.5.6-1 02/05/08 16.5.6-2 02/05/08 16.5.7-1 12/13/06 16.5.7-2 12/13/06 16.5.7-3 12/13/06 16.5.7-4 12/13/06 16.5.7-5 12/13/06 16.5.7-6 12/13/06 16.5.8-1 01/31/07 16.5.8-2 01/31/07 16.5.8-3 01/31/07 16.5.8-4 01/31/07 16.5.8-5 01/31/07 16.5.8a-1 5/19/95 16.5.8a-2 5/19/05 (Delete) 16.5.8a-3 5/19/05 (Delete) 16.5.9-1 3/27/99 16.5.9-2 3/27/99 16.5.10-1 10/8/03 16.5.10-2 10/8/03 16.5.11-1 1/31/00 16.5.12-1 3/27/99 16.5.13-1 3/27/99 16.5.13-2 12/01/99 16.5.13-3 12/01/99 16.6.1-1 03/14/07 16M6.1-2 03/14/07 16.6.1-3 03/14/07 16M6.1-4 03/14/07 16M6.1-5 Delete 16.6.2-1 01/31/07 16.6.2-2 01/31/07 16.6.2-3 01/31/07 16.6.2-4 01/31/07 1M66.2-5 01/31/07 16,6.2-6 01/31/07 16.6.2-7 01/31/07 16.6.2-8 Delete 16.6.2-9 Delete 16M6.2-10 Delete 16,6.2-11 Delete LOEP 2

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Paqe Revision Date 16.6.2-12 Delete 16.6.3-1 3/27/99 16.6.4-1 3/13/07 16.6.4-2 3/13/07 16.6.4-3 3/13/07 16.6.4-4 3/13/07 16.6.4-5 3/13/07 16.6.4-6 3/13/07 16.6.5-1 12/14/00 16.6.6-1 3/27/99 16.6.7-1 3/27/99 16.6.8-1 3/27/99 16.6.9-1 6/12/01 16.6.9-2 3/27/99 16.6.10-1 12/15/04 16.6.10-2 12/15/04 16.6.10-3 12/15/04 16.6.11-1 10/1/02 16.6.11-2 10/1/02 16.6.12-1 03/14/07 16.6.12-2 03/14/07 16.6.12-3 03/14/07 16.6.12-4 5/17/05 (Delete) 16.6.12-5 Delete 16.6.12-6 Delete 16.6.12-7 Delete 16.6.13-1 03/31/08 16.6.13-2 03/31/08 16.6.13-3 03/31/08 16.6.14-1 8/15/02 16.6.14-2 8/15/02 16.6.14-3 8/15/02 16.6.14-4 8/15/02 16.6.15-1 03/14/07 16.6.15-2 03/14/07 16.7.1-1 3/27/99 16.7.1-2 3/27/99 16.7.2-1 12/14/04 16.7.2-2 12/14/04 16.7.2-3 12/14/04 16.7.3-1 3/27/99 LOEP 3

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Paqe Revision Date 16;7.3-2 3/27/99 16.7.4-1 7/14/05 16.7.4-2 7/14/05 16.7.4-3 7/14/05 16.7.5-1 10/8/03 16.7.5-2 10/8/03 16.7.5-3 10/8/03 16.7.5-4 10/8/03 16.7.6-1 3/27/99 16.7.7-1 3/27/99 16.7.7-2 3/27/99 16.7.8-1 3/27/99 16.7.8-2 3/27/99 16.7.9-1 10/23/03 16.7.10-1 3/27/99 16.7.10-2 3/27/99 16.7.11-1 3/9/06 16.7.11-2 3/9/06 16.7.11-3 3/9/06 16.7.12-1 6/30/04 16.7.12-2 6/30/04 16.7.13-1 6/30/04 16.7.13-2 6/30/04 16.7.13-3 6/30/04 16.7.14-1 .2/17/00 16.7.14-2 2/17/00 16.7.14-3 2/17/00 16.7.14-4 2/17/00 16.8.1-1 8/09/01 16.8.1-2 8/09/01 16.8.2-1 2/10/05 16.8.2-2 2/10/05 16.8.3-1 3/27/99 16.8.3-2 1/31/00 16.8.3-3 1/31/00 16.8.3-4 3/27/99 16.8.3-5 1/31/00 16.8.3-6 1/31/00 16.8.3-7 1/31/00 16.8.4-1 2/10/05 16.8.4-2 2/10/05 LOEP4

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Paqe Revision Date 16.8.4-3 2/10/05 16.8.4-4 2/10/05 16.8.4-5 Delete 2/10/05 16.8.4-6 Delete 2/10/05 16.8.4-7 Delete 2/10/05 16.8.4-8 Delete 2/10/05 16.8.4-9 Delete 9/25/04 16.8.5-1 4/27/06 16.8.5-2 4/27/06 16.8.5-3 4/27/06 16.8.5-4 Delete 12/21/04 16.8.5-5 Delete 12/21/04 16.8.6-1 01/04/07 16.8.6-2 01/04/07 16.8.6-3 01/04/07 16.8.7-1 1/31/00 16.8.8-1 1/31/00 16.8.9-1 6/21/05 16.8.9-2 6/21/05 16.8.9-3 6/21/05 16.8.9-4 6/21/05 16.9.1-1 1/31/00 16.9.1-2 3/27/99 16.9.1-3 3/27/99 16.9.1-4 3/27/99 16.9.1-5 6/12/01 16.9.2-1 6/28/05 16.9.2-2 6/28/05 16.9.2-3 6/28/05 16.9.2-4 6/28/05 16.9.2-5 6/28/05 16.9.3-1 1/14/04 16.9.3-2 1/14/04 16.9.4-1 1/31/00 16.9.4-2 1/31/00 16.9.4-3 1/31/00 16.9.4-4 3/27/99 16.9.4-5 6/12/01 16.9.5-1 1/31/00 16.9.5-2 4/29/99 16.9.5-3 4/29/99 LOEP 5

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Paqe Revision Date 16.9.5-4 6/12/01 16.9.6-1 02/05/08 16.9.6-2 02/05/08 16.9.6-3 02/05/08 16.9.6-4 02/05/08 16.9.6-5 02/05/08 16.9.6-6 02/05/08 16.9.6-7 02/05/08 16.9.6-8 02/05/08 16.9.6-9 02/05/08 16.9.7-1 3/31/05 16.9.7-2 3/31/05 16.9.7-3 3/31/05 16.9.7-4 3/31/05 16.9.7-5 3/31/05 16.9.7-6 3/31/05 16.9.7-7 3/31/05 16.9.7-8 3/31/05 16.9.7-9 Delete 16.9.8-1 2/15/06 16.9.8-2 2/15/06 16.9.8-3 Delete 2/15/06 16.9.8-4 Delete 16.9.8-5 Delete 16.9.8-6 Delete 16.9.8-7 Delete 16.9.8a-1 2/7/05 16.9.8a-2 2/7/05 16.9.8a-3 2/7/05 16.9.9-1 11/27/07 16.9.9-2 11/27/07 16.9.9-3 11/27/07 16.9.9-4 11/27/07 16.9.10-1 1/12/04 16.9.10-2 1/12/04 16.9.11-1 3/31/05 16.9.11-2 3/31/05 16.9.11-3 3/31/05 16.9.11-4 3/31/05 16.9.11-5 3/11/05 16.9.11-6 3/31/05 LOEP 6

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Paqe Revision Date 16.9.11-7 3/31/05 16.9.11-8 3/31/05 16.9.1 la-1 3/10/08 16.9.11 a-2 3/10/08 16.9.11 a-3 3/10/08 16.9.11 a-4 3/10/08 16.9.11 a-5 3/10/08 16.9.11 a-6 3/10/08 16.9.11 a-7 3/10/08 16.9.11 a-8 3/10/08 16.9.11 a-9 3/10/08 16.9.11 a-10 3/10/08 16.9.11 a-11 3/10/08 16.9.11 a-1 2 3/10/08 16.9.11a-13 3/10/08 16.9.11a-14 3/10/08 16.9.11a-15 3/10/08 16.9.11 a-16 Deleted 3/10/08 16.9.12-1 5/31/04 16.9.12-2 5/31/04 16.9.12-3 5/31/04 16.9.12-4 5/31/04 16.9.12-5 5/31/04 16.9.12-6 5/31/04 16.9.12-7 5/31/04 16.9.12-8 5/31/04 16.9.12-9 5/31/04 16.9.12-10 5/31/04 16.9.12-11 5/31/04 16.9.12-12 5/31/04 16.9.12-13 5/31/04 16.9.12-14 5/31/04 16.9.12-15 5/31/04 16.9.12-16 5/31/04 16.9.12-17 5/31/04 16.9.12-18 5/31/04 16.9.12-19 5/31/04 16.9.12-20 5/31/04 16.9.12-21 5/31/04 16.9.12-22 5/31/04 16.9.13-1 01/31/07 LOEP 7

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Page Revision Date 16.9.13-2 01/31/07 16.9.13-3 01/31/07 16.9.13-4 01/31/07 16.9.14-1 10/28/04 16.9.14-2 10/28/04 16.9.15-1 3/27/99 16.9.15-2 3/27/99 16.9.15-3 3/27/99 16.9.16-1 4/01/08 16.9.16-2 4/01/08 16.9.16-3 4/01/08 16.9.17-1 5/23/01 16.9.17-2 3/27/99 16.9.18-1 5/02/07 16.9.18-2 5/02/07 16.9.18-3 5/02/07 16.9.18-4 5/02/07 16.9.18-5 5/02/07 16.9.18-6 5/02/07 16.9.18-7 5/02/07 16.9.18-8 5/02/07 16.9.18-9 5/02/07 16.9.18-10 5/02/07 16.9.18-11 5/02/07 16.9.18-12 5/02/07 16.9.18-13 5/02/07 16.9.18-14 5/02/07 16.9.18-15 5/02/07 16.9.18-16 5/02/07 16.9.19-1 3/31/05 16.9.19-2 3/31/05 16.9.20-1 09/06/06 16.9.20-2 09/06/06 16.9.20-3 09/06/06 16.9.20-4 09/06/06 16.9.21-1 06/30/08 16.9.21-2 06/30/08 16.9.21-3 06/30/08 16.9.21-4 06/30/08 16.10.1-1 Deleted 9/18/03 16.10.1-2 Deleted 9/18/03.

LOEP 8

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Page Revision Date 16.10.1-3 Deleted 9/18/03 16.10.2-1 12/2/03 16.10.2-2 12/2/03 16.10.3-1 3/27/99 16.10.3-2 3/27/99 16.10.4-1 1/31/00 16.10.5-1 Deleted 8/24/04 16.10.6-1 3/27/99 16.10.7-1 4/29/99 16.10.7-2 4/29/99 16.10.7-3 1/31/00 16.10.7-4 4/29/99 16.10.7-5 4/29/99 16.10.7-6 4/29/99 16.10.7-7 4/29/99 16.10.7-8 4/29/99 16.10.7-9 4/29/99 16.10.8-1 11/27/06 16.10.8-2 11/27/06 16.10.8-3 11/27/06 16.10.8-4 11/27/06 16.10.8-5 11/27/06 16.11.1-1 08/14/08 16.11.1-2 08/14/08 16.11.1-3 08/14/08 16.11.1-4 08/14/08 16.11.1-5 08/14/08 16.11.1-6 08/14/08 16.11.1-7 08/14/08 16.11.2-1 1/31/00 16.11.2-2 3/27/99 16.11.2-3 1/31/00 16.11.2-4 3/27/99 16.11.2-5 1/31/00 16.11.2-6 1/31/00 16.11.3-1 12/04/07 16.11.3-2 12/04/07 16.11.3-3 12/04/07 16.11.3-4 12/04/07 16.11.3-5 12/04/07 16.11.3-6 12/04/07 LOEP 9

Oconee Nuclear Station Selected Licensee Commitments. Revised 08/14/08 List of Effective Pages Paqe Revision Date 16.11.3-7 12/04/07 16.11.3-8 12/04/07 16.11.3-9 12/04/07 16.11.3-10 12/04/07 16.11.3-11 12/04/07 16.11.3-12 12/04/07 16.11.3-13 12/04/07 16.11.3-14 12/04/07 16.11.3-15 12/04/07 16.11.3-16 12/04/07 16.11.3-17 12/04/07 16.11.3-18 12/04/07 16.11.3-19 11/10/04 (Deleted) 16.11.4-1 11/10/04 16.11.4-2 11/10/04 16.11.4-3 11/10/04 16.11.4-4 11/10/04 16.1.1.4-5 11/10/04 16.11.4-6 11/10/04 16.11.4-7 11/10/04 16.11.4-8 11/10/04 (Delete) 16.11.5-1 10/30/02 16.11.5-2 10/30/02 16.11.5-3 10/30/02 16.11.5-4 10/30/02 16.11.6-1 2/1/05 16.11.6-2 2/1/05 16.11.6-3 2/1/05 16.11.6-4 2/1/05 16.11.6-5 2/1/05 16.11.6-6 2/1/05 16.11.6-7 2/1/05 16.11.6-8 2/1/05 16.11.6-9 2/1/05 16.11.6-10 2/1/05 16.11.7-1 1/31/00 16.11.7-2 1/31/00 16.11.7-3 3/27/99 16.11.7-4 1/31/00 16.11.8-1 9/25/03 16.11.8-2 9/25/03 LOEP 10

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Pa e Revision Date 16.11.9-1 11/14/00 16.11.9-2 1/31/00 16.11.9-3 1/31/00 16.11.10-1 2/25/03 16.11.10-2 2/25/03 16.11.11-1 3/27/99 16.11.12-1 4/10/03 16.11.12-2 4/10/03 16.11.13-1 3/27/99 16.11.13-2 3/27/99 16.11.14-1 3/27/99 16.11.14-2 3/27/99 16.12.1-1 3/27/99 16.12.2-1 5/3/07 16.12.2-2 5/3/07 16.12.3-1 5/1/03 16.12.3-2 5/1/03 16.12.4-1 3/27/99 16.12.5-1 3/27/99 16.12.6-1 11/08/07 16.13.1-1 5/13/04 16.13.1-2 5/13/04 16.13.1-3 5/13/04 16.13.1-4 5/13/04 16.13.1-5 5/13/04 16.13.1-6 5/13/04 16.13.1-7 5/13/04 16.13.1-8 5/13/04 16.13.1-9 5/13/04 16.13.2-1 12/15/04 16.13.2-2 Delete 12/15/04 16.13.2-3 Delete 12/15/04 16.13.2-4 Delete 12/15/04 16.13.3-1 12/15/04 16.13.3-2 Delete 12/15/04 16.13.4-1 3/27/99 16.13.5-1 Delete 16.13.5-2 Delete 16.13.6-1 3/27/99 16.13.7-1 12/15/04 16.13.7-2 12/15/04 LOEP 11

Oconee Nuclear Station Selected Licensee Commitments Revised 08/14/08 List of Effective Pages Page Revision Date 16.13.8-1 3/27/99 16.13.9-1 3/27/99 16.13.9-2 3/27/99 16.13.10-1 3/27/99 16.13.11-1 3/27/99 16.14.1-1 3/27/99 16.14.2-1 12/14/04 16.14.2-2 12/14/04 16.14.3-1 3/27/99 16.14.4-1 12/14/04 16.14.4.a-1 12/14/04 16.15.1-1 4/12/06 16.15.1-2 Deleted 4/12/06 16.15.1-3 Deleted 4/12/06 16.15.1-4 Deleted 4/12/06 16.15.1-5 Deleted 4/12/06 16.15.2-1 09/10/07 16.15.2-2 09/10/07 16.15.2-3 09/10/07 16.15.2-4 09/10/07 16.15.2-5 09/10/07 16.15.3-1 4/12/06 16.15.3-2 4/12/06 16.15.3-3 4/12/06 16.15.3-4 4/12/06 16.15.3-5 4/12/06 LOEP 12

Radioactive Liquid Effluents 16.11.1 16.11 RADIOLOGICAL EFFLUENTS CONTROL 16.11.1 Radioactive Liquid Effluents COMMITMENT Establish conditions for the controlled release of radioactive liquid effluents. Implement the requirements of 10 CFR 20, 10 CFR 50.36a, Appendix A to 10 CFR 50, Appendix I to 10 CFR 50, 40 CFR 141 and 40 CFR 190.

a. Concentration The concentration of radioactive material released at anytime from the site boundary for liquid effluents to Unrestricted Areas [denoted in Figure 2.1-4(a) of the Oconee Nuclear Station Updated Final Safety Analysis Report] shall be limited to 10 times the effluent concentrations specified in 10 CFR Part 20, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases the concentration shall be limited to 2 x 10-4 ýCi/ml total activity.

b. Dose The dose or dose commitment to a Member Of The Public from radioactive materials in liquid effluents to Unrestricted Areas shall be limited to:

1. during any calendar quarter:

< 4.5 mrem to the total body

< 15 mrem to any organ; and

2. during any calendar year:

< 9 mrem to the total body

< 30 mrem to any organ.

c. Liquid Waste Treatment The appropriate subsystems of the liquid radwaste treatment system shall be used to -reduce the radioactive materials in liquid waste prior to their discharge, if the projected dose due to liquid effluent releases to unrestricted areas, when averaged over 31 days would exceed 0.18 mrem to the total body or 0.6 mrem to any organ.

16.11.1-1 08/14/08 1

Radioactive Liquid Effluents 16.11.1 NOTE-Appendix I dose limits for radioactive liquid effluent releases are applicable only during normal operating conditions which include expected operational occurrences, and are not applicable during unusual operating conditions that result in activation of the Oconee Emergency Plan.

APPLICABILITY: At all times ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Concentration of A.1 Restore concentration to Immediately radioactive material within the limit.

released in liquid effluents to Unrestricted Areas exceeds the limits specified in Commitment a.

16.11.1-2 08/14/08 1

Radioactive Liquid Effluents 16.11.1 CONDITION REQUIRED ACTION COMPLETION TIME B. Calculated dose from B.1 --------- NOTE-------

the release of Not required during radioactive materials in unusual operating liquid effluents exceeds conditions that result in any of the limits in activation of the Oconee Commitment b. Emergency Plan.

Submit report to the 30 days from the end of regional NRC Office which the quarter during which includes the following: the release occurred

a. Cause(s) for exceeding the limit(s).

b. A description of the program of corrective action initiated to:

reduce the releases of radioactive materials in liquid effluents, and to keep these levels of radioactive materials in liquid effluents in compliance with the above limits, or as low as reasonably achievable.

c. Results of radiological analyses of the drinking water source and the radiological impact on finished drinking water supplies with regard to the requirements of 40 CFR 141.

16.11.1-3 08/14/08 1

Radioactive Liquid Effluents 16.11.1 CONDITION REQUIRED ACTION COMPLETION TIME C. Radioactive liquid C.1 Submit report to the 30 days waste is discharged regional NRC Office which without treatment and includes the following:

in excess of the specified limit, a. Cause of equipment or subsystem inoperability.

b. Corrective action to restore equipment and prevent recurrence.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 16.11.1.1 N/A N/A 16.11.1 -4 08/14/08 1

Radioactive Liquid Effluents 16.11.1 BASES The concentration commitment is provided to ensure that the concentration of radioactive materials released in liquid waste effluents from the site to unrestricted areas will be less than 10 times the effluent concentration levels specified in 10 CFR Part 20, Appendix B, Table 2, Column 2. The concentration limit for noble gases is based upon the assumption that Xe-1 35 is the controlling radioisotope and its EC in air (submersion) was converted to an equivalent concentration in water using the methods described in International Commission on Radiological Protection (ICRP) Publication 2.

The basic requirements for Selected Licensee Commitments concerning effluent from nuclear power reactors are stated in 10 CFR 50.36a. Compliance with effluent Selected Licensee Commitments will ensure that average annual releases of radioactive material in effluents will be small percentages of the limits specified in the old 10 CFR 20.106 (new 10 CFR 20.1302).

The requirements contained in 10 CFR 50.36a further indicate that operational flexibility is allowed, compatible with considerations of health and safety, which may temporarily result in releases higher than such small percentages, but still within the limits specified in the old 10 CFR 20.106 which references Appendix B, Table II concentrations (MPCs). These referenced concentrations are specific values which relate to an annual dose of 500 mrem. It is further indicated in 10 CFR 50.36a that when using operational flexibility, best efforts shall be exerted to keep levels of radioactive materials in effluents as low as reasonably achievable (ALARA) as set forth in 10 CFR 50 Appendix I. Also, for fresh water sites with drinking water supplies which can be potentially affected by plant operations, there is reasonable assurance that the operation of the facility will not result in radionuclide concentrations in the finished drinking water that are in excess of the requirements of 40 CFR 141. Therefore, to accommodate operational flexibility needed for effluent releases, the limits associated with this SLC are based on ten times the instantaneous dose rate value of 50 mrem/year to apply at all times. Compliance with the limits of the new 10 CFR 20.1001 will be demonstrated by operating within the limits of 10 CFR 50, Appendix I, 40 CFR 141 and 40 CFR 190.

Section I of Appendix I of 10 CFR 50 states that this appendix provides specific numerical guides for design objectives and limiting conditions for operation, to assist holders of licenses for light water cooled nuclear power reactors in meeting the requirements to keep releases of radioactive material to unrestricted areas as low as practical and reasonably achievable, during normal reactor operations, including expected operational occurrences. Using the flexibility granted during unusual operating conditions, and the stated applicability of the design objectives for the Oconee Nuclear Station, Appendix I dose limits for radioactive liquid effluent releases are concluded to be not applicable during unusual operating conditions that result in the activation of the Oconee Emergency Plan.

For units with shared radwaste treatment systems, the liquid effluents from the shared system are proportioned among the units sharing that system.

The requirements that the appropriate portions of this system be used when specified provides assurance that the releases of radioactive materials in liquid effluents will be kept "as low as is reasonably achievable." This SLC implements the requirements of 10 CFR Part 50.36a.

General Design Criterion 60 of Appendix A to 10 CFR Part 50 and design objective Section II.D of Appendix A to 10 CFR Part 50.

16.11.1 -5 08/14/08 1

Radioactive Liquid Effluents 16.

11.1 REFERENCES

1. 10 CFR Part 20, Appendix B.

2. 40 CFR Part 141.

3. 10 CFR Part 50, Appendices A and I.

4. 40 CFR Part 190.

5. Offsite Dose Calculation Manual.

6. Regulatory Guide 1.109.

7. NUREG-1301 16.11.1-6 08/14/08 I