Summary
The National Nuclear Security Administration (NNSA), a semi-autonomous agency within the United States (U.S.) Department of Energy (DOE), has the primary responsibility to maintain and enhance the safety, security, and performance of the U.S. nuclear weapons stockpile, and support other DOE/NNSA missions. One of NNSA’s critical production sites is the Y-12 National Security Complex (Y-12) in Oak Ridge, Tennessee. Y-12 is the lead production plant for the materials mission and is responsible for maturing the manufacturing process and deploying the capacity to produce the required materials components that are used in support of the nuclear weapons stockpile. NNSA does not currently have the capability to manufacture these materials in the required quantities that are the subject of this environmental assessment (EA). 1 NNSA is preparing an EA to analyze the potential environmental effects associated with materials manufacturing activities performed in support of the materials mission.
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