ML080920131

GE Hitachi Nuclear Energy - Annual Report for Getr, 2007

ML080920131
Person / Time
Site:	Vallecitos File:GEH Hitachi icon.png
Issue date:	03/28/2008
From:	Latonya Mahlahla GE-Hitachi Nuclear Energy Americas
To:	Document Control Desk, NRC/FSME
References
Download: ML080920131 (6)

Text

GE Hitachi Nuclear Energy

• I HITACHI LaTonya Mahlahla Vallecitos Nuclear Center 6705 Vallecitos Rd Sunol, CA 94586 USA U.S. Nuclear Regulatory Commission T 925 862 4360 F 910-341-2972 One White Flint North Lotonya.mahlolo@ge.com 11555 Rockville Pike Rockville, Maryland 20852-2738 Attn: Document Control Desk March 28,2008

Subject:

Annual Report for GETR, 2007

Reference:

License TR-1, Docket 50-70

Enclosure:

Annual Report No. 49 Enclosed is the Annual Report No. 49 for the deactivated General Electric Test Reactor (GETR) 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,D t (tv Date: 4:3 b2008.03.28

] 10' 11:27:04 -07'00' LaTonya L. Mahlahla Mgr., Regulatory Compliance & EHS cc: John Buckley (email)

/VH55~/'.

LLM-2008-06 GETR Annual Report

GE Hitachi Nuclear Energy 0 HITACHI Vallecitos Nuclear Center Sunol, California GENERAL ELECTRIC TEST REACTOR (DEACTIVATED)

ANNUAL REPORT NO. 49 FOR THE YEAR 2007 LICENSE TR-1 DOCKET 50-70 MARCH 2008

GE Hitachi HITACHI Nuclear Energy General Electric Test Reactor (Deactivated)

Annual Report No. 49 General Electric Company has maintained the General Electric Test Reactor (GETR) in a deactivated status under the authority of Amendment No. 16 to License TR-1, Docket 50-70, issued September 30, 1992. In this annual report, a summary of the status of the facility for the period of January 1, 2007 to December 31, 2007 is presented.

1.0

SUMMARY

The facility remains in essentially the same condition described in Annual Report No. 48.

Entry into the reactor building was made for routine radiation surveys and a general examination of conditions throughout the building.

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. There were no changes authorized by the Facility Manager pursuant to 10CFR50.59(a) and completed in 2007.

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.

The data below are from sample and dosimeter results accumulated during 2007. These data are for the entire VNC site and include the effects of operations other than GETR.

3.1 GETR Stack Not operated.

GE Hitachi HITACHI Nuclear Energy 3.2 Air Monitors (Yearly average of all meteorological stations.)

Four environmental air monitoring stations are positioned approximately 90 degrees apart around the operating facilities of the site. Each station is equipped with a membrane filter that is changed weekly and analyzed for gross alpha and gross beta-gamma.

Alpha Concentration:

Weekly Maximum, 5.13 E-13 kiCi/cc Weekly Average, 4.03 E-14 ýtCi/cc Beta Concentration:

Weekly Maximum, 6.15 E-12 ýtCi/cc Weekly Average, 9.35 E-14 gtCi/cc 3.3 Gamma Radiation The yearly dose results for the year 2007 as determined from evaluation of site perimeter environmental monitoring dosimeters showed no departure from normal stable backgrounds.

3.4 Vegetation No alpha, beta or gamma activity attributable to activities at the GETR facility was found on or in vegetation in the vicinity of the site.

3.5 Off-Site Samples taken off the site indicate normal background for the area.

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 period.

GE Hitachi Nuclear Energy

• I -HITACHI 5.0 ORGANIZATION The management and operations organization for the GETR is described in Technical Specification 6 (Figure 1) of License TR- 1. The organizational structure remained the same in 2007. The Level 1 Organizational Head for 2007 was D. W. Turner. The Level 2 Facility Manager during 2006 was C. W. Bassett.

6.0 CONCLUSION

GE Hitachi Nuclear Energy concludes that the deactivated GETR 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 C. W. Bassett, Manager Facilities Maintenance and QA

GE Hitachi Nuclear Energy Si-HITACHI Table 1 Radiation and Contamination Level Data General Electric Test Reactor (Deactivated)

Contamination Levels Surface Smears Airborne Radiation Levels Beta-Gamma' Beta-Gamma 2 (mR/h Gamma) (cpm/ftz) (RiCi/cc x 10.10)

Date of Measurement: 12/06 12/07 12/06 12/07 12/06 12/07 Reactor Enclosure Canal (field reading min.- <1 /2.6 <1 / 2.2 ....

max.)

3 rd Floor Zone (field reading <1 / 2.8 <1 / 2.5 25K 7.6K min.-max.)

3 rd Floor Clean Area .. .. 200 <100 ....

Top of Missile Shield (Point <1 / 2.2 <1 / <1 <100 <100 0.028 0.009 A) 2 Floor (field reading

'd <1 / 8 <1 /78 ....

min.-max.)

2 nd Floor Clean Area .. .. 200 <t100 ....

1st Floor Zone (field reading <1 /2.5 <1 /2.5 10K 1.4K ....

min.-max.)

1st Floor Clean Area .. .. 1K 200 ....

Basement, Rod Work Area <1 / 7 <1 / 8 10K 1.2K 0.021 0.008 Basement Clean Area .... 1K 700 ....

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.

I For conversion to d/m, assume an instrument efficiency of 20%.

2 24-hour decayed values