ML110940037

Transmittal of the 2010 Annual Report No. 46 for the Deactivated Boiling Water Reactor

ML110940037
Person / Time
Site:	Vallecitos Nuclear Center
Issue date:	03/31/2011
From:	Doreen Turner GE-Hitachi Nuclear Energy Americas
To:	Document Control Desk, NRC/FSME
References
DWT-2011-06
Download: ML110940037 (6)

Text

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• HITACHI GE Hitachi Nuclear Energy David W. Turner Manager, Vallecitos Nuclear Center 6705 Vallecitos Road Sunol, CA 94586-9524 USA DWT-2011-06 T +1 925 862 4344 F +1 910 341 2577 March 31, 2011 M+1925 200 5060 davidw.turner@ge.com U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001

Subject:

Annual Report for VBWR, 2010

Reference:

License DRP-1, Docket 50-18

Enclosure:

Annual Report No. 46 Enclosed is the Annual Report No. 46 for the deactivated Vallecitos Boiling Warter Reactor (VBWR) 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

~~DavidW.signed Turner by Date: 2011.03.31 14:25:45 -07'00' David W. Turner Manager, Vallecitos Nuclear Center cc: John Buckley, NRC (by e-mail)

Robert Evans, Region IV(by e-mail)

GEHitachi Nuclear Energy

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0 HITACHI GE Hitachi Nuclear Energy Vollecitos Nuclear Center Sunol, California VALLECITOS BOILING WATER REACTOR (DEACTIVATED)

ANNUAL REPORT NO. 46 FOR THE YEAR 2010 LICENSE DPR-1 DOCKET 50-18 MARCH 2011

VBWR Annual Report No. 45 Vallecitos Boiling Water Reactor (Deactivated)

Annual Report No. 46 GE Hitachi Nuclear Energy has maintained the Vallecitos Boiling Water Reactor (VBWR) in a deactivated status under the authority of Amendment No. 21 to License DPR-1, Docket 50-18, issued Oct 22, 2007 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 5.d.2 of the license.

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SUMMARY

All reactor systems have been removed from the containment except for the reactor vessel.

The water level within the reactor vessel was monitored and has remained essentially constant throughout the report period.

Radiation levels remain essentially unchanged.

2.0 STATUS OF FACILITY In accordance with written procedures, the Facility Manager controls access to the containment building and general systems. The facility continues to be in deactivated status in safe storage condition.

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. No other significant activities occurred at VBWR.

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VBWR Annual Report No. 45 5.0 ORGANIZATION The organizational structure was static during 2010. The Vallecitos Nuclear Center (VNC) Site Manager is D.W. Turner. The VBWR Facility Manager is M. R. Schrag. The Manager, Regulatory Compliance and EHS is D. R. Krause.

6.0 CONCLUSION

GE Hitachi Nuclear Energy concludes that the deactivated VBWR is being maintained in a safe shutdown condition. The inspections, access control, and administratively controlled activities ensure maximum protection for the public health and safety. The procedures will be continued to maintain this high level of protection.

GE Hitachi Nuclear Energy Vallecitos Operations Digitally signed by David W.

Turner Date: 2011.03.31 14:25:23 -07'00' D.W. Turner Manager Vallecitos Nuclear Center Page 2 of 3

VBWR Annual Report No. 45 Table 1 Radiation and Contamination Level Data Vallecitos Boiling Water Reactor (Deactivated)

Contamination Levels Surface Smears Airborne Radiation Levels Beta-Gamma Beta-Gamma*

(mR/h Gamma) (dpm/ft2) (PCi/cc x 10-10)

Report Year: 2009 2010 2009 2010 2009 2010 Reactor Enclosure, Main Floor 0.02 0.42 General <1.0 <1.0 2,500 5,000 Top of Spent Fuel Pit Cover <1.0 1.0 1,000 1,500 Reactor Basement 0.17 0.08 Upper Level <1.0 <1.0 Basement Sump 5.0 <1.0 10,000 16,000 East Ladder, Bottom <1.0 <1.0 10,000 10,000 Deck/Reactor Vessel Head <1.0 <1.0 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.

Survey Dates:

2009 - 01/20/2010 2010 - 12/11/2010 Survey Point Changes:

• West Ladder Removed - Replaced with Basement Sump survey point.

Between Recirc Pumps removed - Replaced with Deck/Reactor Vessel Head survey point.

"24-hour decayed values Page 3 of 3