ML090930300

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Annual Report No. 41 for EVESR, 2008
ML090930300
Person / Time
Site: Vallecitos File:GEH Hitachi icon.png
Issue date: 03/31/2009
From: Don Krause
GE-Hitachi Nuclear Energy Americas
To:
Document Control Desk, NRC/FSME
References
Download: ML090930300 (5)


Text

GE Infrastructure Energy, Nuclear

  • I HITACHI Donald R. Krause Manager, Regulatory Compliance and EHS Vallecitos Nuclear Center 6705 Vallecitos Rd Sunol, CA 94586 USA T 925 862 4360 F925 304-7435 31 March 2009 Donald.Krause@ge.com U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Attn: Document Control Desk

Subject:

Annual Report for EVESR, 2008

Reference:

License DR-10, Docket 50-183

Enclosure:

Annual Report No. 41 Enclosed is the Annual Report No. 41 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, Donald R. Krause, Manager, Regulatory Compliance and Environment, Health, and Safety c: John Buckley (email) 5D~

GE Hitachi Nuclear Energy Americas. LLC DRK-2009-17 EVESIR Ann Report.doc

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

ANNUAL REPORT NO. 41 FOR THE YEAR 2008 LICENSE DR-10 DOCKET 50-183 MARCH 2009

GE Hitachi HITACHI Nuclear Energy ESADA-Vallecitos Experimental Superheat Reactor (Deactivated)

Annual Report No. 41 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-10, 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, 2008 to December 31, 2008 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 will continue in 2009. 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.

One incident (Incident 08-06) occurred during the remediation activities. A small fire occurred when sparks from hot work penetrated a local ventilation trunk impinging on the filter media where a small Class A fire occurred. The was no personnel injury or environmental release. The local ventilation unit was damaged.

Radiation levels remain essentially unchanged.

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.

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 initiated.

GE Hitachi HITACHI Nuclear Energy 5.0 ORGANIZATION The management and operations organization for the EVESR is described in Technical Specification IX of License DR-10. The organizational structure has changed since the last report. The Site Manager remained D. W. Turner. C. W. Bassett was the EVESR Facility Manager and has been replaced by J.L. Grinold. The Manager, Regulatory Compliance and EHS was L. L. Mahlahla and changed to D. R. Krause.

6.0 CONCLUSION

GE Hitachi Nuclear Energy concludes that the deactivated ESADA-Vallecitos Experimental Superheat Reactor is being maintained in a safe shutdown condition with component removal activities in progress. 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.

J. L. 6(rinold, Manager Facilities Maintenance & QA

GE Hitachi HITACHI Nuclear Energy Table 1 Radiation and Contamination Level Data ESADA-Vallecitos Experimental Superheat Reactor (Deactivated)

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

Date of Measurement: 12/07 12/08 12/07 12/08 12/07 12/08 Reactor Enclosure Top of spent fuel pool (main <1 <1 300 100 ....

floor) 549-ft level (main floor) <1 <1 250 100 .003 0.03 534-ft level <1-1.5 <1.5 100 1000 ....

519-ft level <1-2 <1 300 4000 .003 0.03 503-ft level (maximum pipe <1 <1 2000 500 ....

reading) 487-ft level (basement) <1 <1 1000 150 .004 0.01 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.

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

2 24-hour decayed values