300 Area radioactive liquid waste streams disposal.

摘要

In the 300 Area there are three liquid waste streams containing low concentrations of radioactive material which are discharged into the ground. One of these is the process sewer stream from the Metal Preparations facility, the 321 Building Cold Separations Laboratory, and miscellaneous buildings where minor radioactive contamination might occur. The second stream is liquid waste of low or negligible radioactive content from the Works Laboratory Area to retention basins east of the 300 Area. This stream contains equipment cooling water, laboratory wastes, and at present, air conditioning water from the 329 Building. The retention basin liquid is sampled and if free of radioactive contamination, is pumped to leaching trenches adjacent on the river bank. If contaminated, present regulations require that the liquid be pumped into storage tanks and later trucked out to the Redox Area for disposal in the 216-SL crib. The third liquid waste stream is made up of higher activity waste liquids from chemical and metallurgical laboratories. This stream generally contains acid solutions diluted by flushing water. It is accumulated in the 340 Building storage tanks for neutralization and periodically trucked to the Redox crib. If the radioactive content exceeds cribbing limits it may have to be sent to underground storage tanks in the 200 Areas. 2 figs., 4 tabs.