ML100900466

Annual Report for ESADA-Vallecitos Experimental Superheat Reactor for the Year 2009

ML100900466
Person / Time
Site:	Vallecitos File:GEH Hitachi icon.png
Issue date:	03/30/2010
From:	Turner D W GE-Hitachi Nuclear Energy Americas
To:	Document Control Desk, NRC/FSME
References
Download: ML100900466 (4)

Text

0. IHITACHI GE Hitachi Nuclear Energy David W. Turner Manager, Vallecitos Nuclear. Center 6705 Vallecitos Rd Sunol, CA 94586 USA U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Attn: Document Control Desk T 925 862 4344 F 910 341 2577 davidw.turner@ge.com March 30th, 2010

Enclosure:

Annual Report for EVESR, 2009 License DR-10, Docket 50-183 Annual Report No. 42 Enclosed is the Annual Report No. 42 for the deactivated ESADA-Vallecitos Experimental Superheat Reactor (EVESR) located at Vallecitos Nuclear Center near Sunol, California.

If there are any questions or additional information required, please contact me at the number above.Sincerely Yours, Digitally sig ned by O~-David W I Turne Date: 20'10.03132:5-70.a 13:21:15 -a7aa' -David W. Turner Manager, Vallecitos Nuclear Center cc: John Buckley, NRC (by e-mail)Robert Evans, Region IV (by e-mail)GE-Hitochi Nuclear Energy Americas, LLC SHITACHI GE Hitachi Nuclear Energy Vollecitos Nudeor Center Sunol& Celifornio ESADA-VALLECITOS EXPERIMENTAL SUPERHEAT REACTOR (DEACTIVATED)

ANNUAL REPORT NO. 42 FOR THE YEAR 2009 LICENSE DR-10 DOCKET 50-183 MARCH 2010 EVESR Annual Report No. 42 ESADA-Vallecitos Experimental Superheat Reactor (Deactivated)

ANNUAL REPORT NO. 42 General Electric Company has maintained the ESADA Vallecitos Experimental Superheat Reactor (EVESR) in a deactivated status under the authority of Amendment No. 3 to License DR-IO, Docket 50-183, issued June 11, 1976. In this annual report, a summary of the status of the facility for the period of January 1, 2009 to December 31, 2009 is presented, as required by paragraph 3.E.2. of the license.1.0

SUMMARY

Component removal activities began in 2008 above the 549 foot level. Tech Spec changes issues in Amendment 7 December 1, 2008 authorize the removal of systems beside the reactor vessel and bio-shield below the 549 level. Component removal continued in 2009 will continue in 2010. Entry into the containment building was made for routine radiation surveys and a general examination of conditions throughout the building.

In accordance with written procedures, the Facility Manager controls access to the containment building.Radiation levels remain essentially unchanged.

Contamination levels are up slightly, reflecting the ongoing equipment-removal activities.

2.0 STATUS OF FACILITY The facility continues to be in deactivated status. The plugs to the reactor vessel and head storage shield, the wooden cover over the fuel storage pool remain in place.3.0 RADIATION AND CONTAMINATION Complete radiation and contamination surveys of the facility indicate that levels remain low. Results of the surveys are presented in Table 1. The radiation/contamination levels listed are representative but not necessarily maximum values.4.0 ACTIVITIES Routine inspections were conducted during this report period. Component removal and downsizing was continued.

4.234 mCi of material in 2354 ft 3 were removed and disposed in at the facility in Clive, Page 2 of 3 EVESR Annual Report No. 42 Table 1 Radiation and Contamination Level Data ESADA-Vallecitos Experimental Superheat Reactor (Deactivated)

Contamination Levels Surface Smears Airborne Radiation Beta-Gamma Beta-Gamma' Levels (dpm/ft 2) (PLCi/cc x 10-10)(mR/h Gamma)Date of Measurement:

12/08 12/09 12/08 12/09 12/08 12/09 Reactor Enclosure Top of spent fuel pool <1 <1 500 15,000 (main floor)549-ft level (main floor) <1 <1 500 10,000 0.03 23.9 534-ft level <1.5 <1 5,000 20,000 519-ft level <1 <1 20,000 10,000 0.03 11.9 503-ft level (maximum <1 <1 2,500 10,000 pipe reading)487-ft level (basement)

<1 <1 750 2,500 0.01 9.15 Note: Radiation levels, surface smears, and air samples may vary from survey to survey as they are taken in general areas rather than at specific locations.

24-hour decayed values Page 4 of 3