September 3, 2004
The Honorable John J. Conway
Defense Nuclear Facilities Safety Board
625 Indiana Avenue, N.W., Suite 700
Washington, D.C. 20004
Dear Mr. Chairman:
The purpose of this letter is to provide the Department of Energy (DOE) program plan requested in your letter of July 29, 2004. The enclosed program plan is for reassessment of the predicted Hanford seismic ground motion, particularly related to resolving uncertainty in shear wave velocity at different depths under the Waste Treatment Plant. The program plan is structured to identify how each of the seven specific technical issues raised in the Staff Issue Report will be addressed.
As requested, DOE will provide a report to the Board upon completion of this work. The report will include the findings of the field studies, analysis of the field data, conclusions regarding the adequacy of the current Hanford ground motion criteria, and assessment of the impact, if any, on the design of WTP structures and components.
Thank you for the assessment of this important area. If you have further questions, please call me at (202) 586-7709.
Paul M. Golan
Acting Assistant Secretary for
B. A. Fiscus, RL
M. Frei, EM-22
D. J. Grover, DNFSR Hanford Site Rep.
R. J. Schepens, ORP
S. Schneider, EM-44
M. B. Whitaker, DR-1