[DOE LETTERHEAD]
OFFICE
OF RIVER PROTECTION
February 25, 2005
The Honorable John T. Conway
Chainman
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.
Sincerely,
Roy J. Schepens
Manager
cc w/attach:
J. Henschel, BNI
R. Tosetti, BNI
E. Aromi, CH2M HILL
M. Sautman, DNFSB
S.
Stokes, DNFSB