This EIS evaluated the environmental impacts for the following three key areas: (1) retrieval, treatment, and disposal of waste from 149 single-shell tanks (SSTs) and 28 double-shell tanks and closure of the SST system, (2) decommissioning of the Fast Flux Test Facility, a nuclear test reactor, and (3) disposal of Hanford's waste and other DOE sites' low-level and mixed low-level radioactive waste.
DOE has prepared a Draft Supplement Analysis (SA) in accordance with DOE's National Environmental Policy Act implementing procedures (Title 10 Code of Federal Regulations Part 1021) to assess the Proposed Action of implementing alternative treatment of 200 West Area tank wastes from 22 to 24 single shell waste storage tanks (SSTs) from the S, SX, and U tank farms.
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