OFFICE OF RIVER PROTECTION
February 25, 2005
The Honorable John T. Conway
Defense Nuclear Facilities Safety Board
625 Indiana Avenue, N. W., Suite 700
Washington, D.C. 20004-2901
Dear Mr. Chairman:
STATUS OF ACTIVITY RELATED TO OBSERVATIONS MADE IN DEFENSE NUCLEAR FACILITIES SAFETY BOARD (DNFSB) STAFF ISSUE REPORT ADDRESSING WASTE TREATMENT AND IMMOBILIZATION PLANT (WTP) PROCESS ENGINEERING
Reference: DNFSB letter from J. T. Conway to P. M. Golan, DOE, dated September 29, 2004.
The Reference letter provided DNFSB Staff Issue Report dated September 10, 2004, discussing observations made during recent reviews of WTP ion exchange, melter feed equipment erosion, waste blending, process chemistry modeling, test exceptions, and ultrafiltration cleaning topics. The Attachment to this letter provides the status of work related to these topics.
The U.S. Department of Energy, Office of River Protection will continue to work with your staff as the WTP design progresses to assure potential safety concerns are addressed. If you have any questions, please contact me, or your staff may contact William Hamel, Director, WTP Engineering Division, (509) 373-1569.
Roy J. Schepens
J. Henschel, BNI
R. Tosetti, BNI
E. Aromi, CH2M HILL
M. Sautman, DNFSB
S. Stokes, DNFSB