Commenting open: February 08, 2021 12:00AM PT - March 25, 2021 11:59PM PT.
242-A Evaporator Class 3 - New Wall Penetrations
Ecology is holding a 45-day public comment period on a proposed modification to the Hanford Dangerous Waste Permit. This modification proposes allowing facility upgrades associated with the new waste transfer lines from the Double-Shell Tank (DST) System to the 242-A Evaporator. The original transfer lines failed pressure tests in 2018 and must be replaced. Specifically, this modification allows penetrating a wall to install the transfer lines and to perform modifications in the pump-room. These new transfer lines will allow the 242-A Evaporator to continue to treat DST waste, reducing DST waste volume, and allowing for continued Single-Shell Tank waste retrievals.
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