ML060860211

Annual Report No. 41 for Vallecitos BWR for 2005

ML060860211
Person / Time
Site:	Vallecitos Nuclear Center
Issue date:	03/23/2006
From:	Ayala J G General Electric Co
To:	Document Control Desk, NRC/FSME
References
Download: ML060860211 (5)

Text

GE Energy Juan G. Ayala Acting Mgr, Regulatory Compliance

& EHS Juanl.Ayola@ge.com Thursday, March 23, 2006 File Copy DWr-2006-07 Document Control Desk U.'. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Re l erence:

Enclosure:

Annual Report for VBWR, 2005 License DPR-1, Docket 50-18 Annual Report No.41 (3 copies)Enclosed are three signed copies of Annual Report No. 41 for the deactivated Vallecitos Boiling Water 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 below.Sincerely Yours, Compliance

& EHS T.925.862.4342 Gen Oral Electric Company GENE Vallecitos Nuclear Center Mail Code V-18 670; Vallecitos Rd Sunol, CA 94586 4boD/

GE Nuclear Energy Vallecitos Nuclear Center General Electric Company Sunol, California VALLECITOS BOILING WATER REACTOR (DEACTIVATED)

ANNUAL REPORT NO. 41 FOR THE YEAR 2005 LICENSE DPR-1 DOCKET 50-18 MARCH 2006 Vallecitos Boiling Water Reactor (Deactivated)

Annual Report No. 41 General Electric Company has maintained the Vallecitos Boiling Water Reactor (VBWR) in a deactivated status under the authority of Amendment No. 19 to License DPR-l, Docket 50-18.In fais annual report, a summary of the status of the facility for the period of January 1, 2005 to December 31, 2005 is presented, as required by paragraph 5.d.2 of the license.1.0

SUMMARY

The facility remains in essentially the same condition described in Annual Report No. 40. Entry into the containment building was made for routine radiation surveys and a general examination of conditions throughout the building.

The water level within the reactor vessel was monitored and 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.3.0 RADIATION AND CONTAMINATION Cormplete radiation and contamination surveys of the facility indicate that levels remain low.Resfilts 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. There were no preventive or corrective maintenance activities performed having safety significance during the reporting peri Dd.Page 1 of3 VB WR Annual Report No. 41 5.0 ORGANIZATION The organizational structure remained the same. The Vallecitos Nuclear Center (VNC) Site Manager was S. A. Bump. The VBWR Facility Manager was C. W. Bassett.

6.0 CONCLUSION

The General Electric Company 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.

GENERAL ELECTRIC COMPANY Vallecitos Operations Fob* A8d by ChuckS-f S~ni,. DN.o -I Bn V h. .o.%sigtwe Bt aR.-I-pkf C. W. Bassett, Manager Facilities Maintenance and QA Page 2 of 3 f9 VBWIVR Annual Report No. 41 Table 1 Radiation and Contamination Level Data Vallecitos Boiling Water Reactor (Deactivated)

Contamination Levels Surface Smears Airborne Radiation Levels Beta-Gamma Beta-Gammat (mR/h Gamma) (cpm/ft 2 x 103) (pCi/cc x 10to)Date of Measurement:

12/04 12/05 12/04 12/05 12/04 12/05 Reac:tor Enclosure, Main Floor Gmneral <1.0 <1.0 0.15 0.3 0.02 0.013 Top of Spent Fuel Pit Cover <1.0 <1.0 0.2 0.3 0.01 0.009 Reaiotor Basement 0.005 0.012 Up)per Level, Field 1.0 <1.0 --West Ladder, Bottom 10 15 0.3 0.5 ---East Ladder, Bottom 1.4 <1.0 0.2 0.5 0.005 0.018 Butween Recirculation 2.5 3 --- ---PL mps (located 2 feet above deck)Notc: Rad' ation levels, surface smears, and air samples may vary from survey to survey as they are taken in general areas rathc:r than at specific locations.

Foi conversion to d/m, assume an instrument efficiency of 20%.t 24- hour decayed values Page 3 of 3