Tennessee Department of Environment and Conservation - DOE Oversight Division. Status Report to the Public - December 1999 Page: 41 of 72
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Fiscal year 1999 has seen substantial progress toward the completion of
some complex ongoing CERCLA projects at the Oak Ridge
Reservation. The major projects under active remediation follow.
Contaminated sludge is now being moved from the Gunite Tanks at the Oak
Ridge National Laboratory to the Melton Valley Storage Tanks. When this trans-
fer is completed, a significant CERCLA risk at Oak Ridge will have been dimin-
The Molten Salt Reactor Experiment
Reactive Gas Removal
By year's end, a total of 23.5 kilograms of uranium-233 had been removed
from the MSRE vent system since the project began. In addition, blank flanges
had been installed to isolate the purge and trap system from the reactor vessel.
The purge and trap system will remain in place and operational, but it will not be
used as extensively in the future, since its main objective has now been accom-
Uranium Deposit Removal
The cleanup project encountered problems in 1999 with uranium deposit
removal. DOE had planned to vacuum the material, but this was deemed impos-
sible when it was discovered that the top several inches of charcoal has hard-
ened. This meant that a new removal plan was needed.
Fuel and Flush Salt Removal
Work on fuel and flush salt removal proceeded on schedule, and the fuel drain
tanks and cells were inspected successfully. Problems with deposit removal,
mentioned above, will not affect the fuel and flush salt removal task.
Group I Facilities
Decontamination and decommissioning (D&D) of the Group I facilities at
ETTP have now been completed. Contaminated waste material generated from
this D&D activity is packaged and awaits off-site shipment to a permanent dis-
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Tennessee Department of Environment and Conservation - DOE Oversight Division. Status Report to the Public - December 1999, report, December 1, 1999; United States. (https://digital.library.unt.edu/ark:/67531/metadc724924/m1/41/: accessed April 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.