ML101031106

10 CFR 20.2206 Annual Report of Individual Monitoring and Regulatory Guide 1.16 Annual Exposure Report

ML101031106
Person / Time
Site:	Rancho Seco, 07200011
Issue date:	03/31/2010
From:	Ronningen E Sacramento Municipal Utility District (SMUD)
To:	Office of Nuclear Regulatory Research
References
DPG 10-078
Download: ML101031106 (2)

Text

SMUD I

r The Power To Do More.

P.O. Boi 15830, Sacramento, CA 95852-1830; 1-888-742-SMUD (7683)

DPG 10-078 March 31, 2010 REIRS Project Manager Office of Nuclear Regulatory Research U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 Docket No. 72-11 Rancho Seco Independent Spent Fuel Storage Installation License SNM-2510 10 CFR 20.2206 ANNUAL REPORT OF INDIVIDUAL MONITORING AND REGULATORY GUIDE 1.16 ANNUAL EXPOSURE REPORT Attention: REIRS Project Manager In accordance with 10 CFR 20.2206, Rancho Seco Quality Manual Appendix A, Sections 1.5.2.1 and 1.5.2.2, and the guidance in Regulatory Guide 1.16, we are providing the following information regarding monitoring radiation exposure for individuals and the annual exposure report.

No individual monitoring was performed at Rancho Seco in 2009. Since late 2008, the only remaining radiation area at Rancho Seco is the area immediately adjacent to the stored fuel at the Independent Spent Fuel Storage Installation (ISFSI). Entries into the radiation area are made infrequently, and for relatively short durations. In addition, no movement of any of the stored radioactive material at Rancho Seco is currently planned, including both spent fuel at the ISFSI and stored low-level radioactive waste in the Interim Onsite Storage Building (IOSB). Therefore, it is unlikely that any individual could receive an occupational radiation exposure greater than the values indicated in 10 CFR 20.1502(a) and no personnel monitoring for radiation exposure was required or performed in 2009. Areas adjacent to the stored materials in the IOSB exhibit radiation levels that would require monitoring if they were accessible, as would be the case during movement of the materials. If and when the stored radioactive materials are moved, personnel will be monitored for occupational radiation exposure. -,3 RANCHO SECO NUCLEAR PLANT ° 14440 Twin Cities Road, Herald, CA 95638-9799; (209) 333-2935

REIRS Project Manager DPG 10-078 In addition, no areas exist at the facility that are controlled for purposes of limiting intake of radioactive materials (i.e., no areas of airborne or loose contamination). Therefore, it is unlikely that any individual could receive an occupational radiation exposure greater than the values indicated in 10 CFR 20.1502(b) and no personnel monitoring for intake of radioactive materials was required or performed in 2009.

If you or members of your staff have questions requiring additional information or clarification, please contact me at (916) 7324817.

Sincerely, Einar Ronningen Superintendent, Rancho Seco Assets Cc: NRC Region IV