The purpose of this Proposed Action is to perform research vital to stockpile stewardship, counterterrorism and counterproliferation program missions.  The Proposed Action is to increase the weight of explosives used at the Lawrence Livermore National Laboratory (LLNL) Experimental Test Site (Site 300) Building 851 Firing Table up to 1,000 lbs./day up to 7,500 lbs./year.  The explosives weight is the actual mass, in pounds, of explosive mixtures or compounds for an experiment.  Currently, research and development activities at LLNL’s Site 300 Building 851 involve detonation of explosives up to 100 lbs./day up to 1,000 lbs./yr.  The Proposed Action would not involve detonation of radioactive materials.

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