ML12111A263

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GE Hitachi Nuclear Energy - Annual Report No. 44 for the Deactivated ESADA-Vallecitos Experimental Superheat Reactor
ML12111A263
Person / Time
Site: Vallecitos File:GEH Hitachi icon.png
Issue date: 03/30/2012
From: Mcfadden A
GE-Hitachi Nuclear Energy Americas
To:
Document Control Desk, NRC/FSME
References
AES-2012-03-01
Download: ML12111A263 (5)


Text

0HITACHI GE Hitachi Nuclear Energy Anthony E. McFadden Manager, Vallecitos Nuclear Center 6705 Vallecitos Road Sunol, CA 94586-9524 USA T +1 925 862 4344 M +1815 953 8211 anthony.mcfadden@ge.com AES-2012-03-01 March 30, 2012 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001

Subject:

Annual Report for EVESR, 2011

Reference:

License DR-10, Docket 50-183

Enclosure:

Annual Report No. 44 Enclosed is the Annual Report No. 44 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, Manager, Vallecitos Nuclear Center Cc:

John Buckley, NRC (by e-mail)

Robert Evans, Region IV (by e-mail)

ýA GE Hitachi Nuclear Energy

0 HITACHI GE Hitachi Nuclear Energy Vollecitos Nuclear Center Sunol, California ESADA-VALLECITOS EXPERIMENTAL SUPERHEAT REACTOR (DEACTIVATED)

ANNUAL REPORT NO. 44 FOR THE YEAR 2011 LICENSE DR-10 DOCKET 50-183 MARCH 2012

EVESR Annual Report No. 44 ESADA-Vallecitos Experimental Superheat Reactor (Deactivated)

ANNUAL REPORT NO. 44 GE Hitachi Nuclear Energy (GEH) has maintained the ESADA Vallecitos Experimental Superheat Reactor (EVESR) in a deactivated status under the authority of Amendment No. 7 to License DR-IO, Docket 50-183, issued December 1, 2008. In this annual report, a summary of the status of the facility for the period of January 1, 2011 to December 31, 2011 is presented, as required by Amendment 7, Appendix A, Technical Specifications, section C. 1.

1.0

SUMMARY

Component removal activities began in 2008 above the 549 foot level. Tech Spec changes issued in Amendment 7 December 1, 2008 authorize the removal of systems beside the reactor vessel and bio-shield below the 549 level. Component removal concluded (current scope) 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 and contamination levels remain at acceptable levels.

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.

The equipment disposal concluded during 2010.

Page 1 of 3

EVESR Annual Report No. 44 5.0 ORGANIZATION The organizational structure changed during 2011. The Site Manager is A. E.

McFadden. The EVESR Facility Manager remains M. R. Schrag. The Manager, Regulatory Compliance and EHS is T. Dashiell.

6.0 CONCLUSION

GE Hitachi Nuclear Energy concludes that the deactivated ESADA-Vallecitos Experimental Superheat Reactor 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 anaeralFadden Manager Vallecitos Nuclear Center Page 2 of 3

EVESR Annual Report No. 44 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/ft2)*

(pCi/cc x 10-10)

(mR/h Beta-Gamma)

Report Year 2010 2011 2010 2011 2010 2011 Reactor Enclosure Top of spent fuel pool

<1

<1 200 200 (main floor) 549-ft level (main floor)

<1

<1 300 200 0.01 0.007 534-ft level

<1 16"*

500 5000 519-ft level

<1

<1 1500 5000 0.02 0.16 503-ft level (maximum

<1

<1 ND*

1500 pipe reading) 487-ft level (basement)

<1

<1 5000 10000 1.39 0.007 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.

  • - smear areas are not consistently 1 ft2, some range to 10 ft2
    • - taken at the EC valve area Survey Dates:

2010 - 12/08/2010 2011 - 12/08/2011

  • ND - No Data taken, access to area blocked by scaffolding.

1 24-hour decayed values Page 3 of 3