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Ms.Nyein Aung,DTSC April 9,2020 <br /> Response to Request forAdditional Information Regarding the Small Firearms Training Facility Page 2 <br /> Lawrence Livermore National Laboratory Site 300 <br /> EPA ID No. CA2890090002 <br /> non-explosive hazardous waste or the Explosives Waste Storage Facility <br /> (EWSF) M4 for the storage explosives hazardous waste such as duds or <br /> defective ammunition. <br /> 2. Regarding the maintenance of the sand-packed berm is any material removed from <br /> the berm and sand before repacking it. If so, how is that material managed? <br /> Response: <br /> Maintenance of the berm does not require removal of sand material from the impact <br /> area. <br /> 3. Please describe how the sand-packed berm is re-packed when divots or other issues <br /> are visible in sand-packed berm (e.g., is new sand used, is a front loader used to <br /> pack the berm?). <br /> Response: <br /> Material that sloughs down slope is moved up slope with hand tools(e.g., rake, <br /> shovel, broom). Material moved up slope does not require re-packing to keep the <br /> material from moving down slope. Heavy equipment(e.g., front end loader) is not <br /> used to maintain the berm. <br /> 4. Does LLNL Site 300 have a process to ensure ammunition that misses the sand- <br /> packed berm(e.g., ammunition that lands outside the shooting range area) is <br /> retrieved and properly managed? <br /> Response: <br /> The impact berm is of sufficient size to contain all rounds fired by trainees from <br /> approved firing lines and all shooters are briefed on the approved engagement. The <br /> target line is always set up such that fired rounds, even misses, are contained within <br /> the area of the impact berm. Additionally, instructor-to-shooter ratios are <br /> maintained such that instructor intervention precludes the accidental firing of <br /> ammunition into areas other than the impact berm <br /> 5. Provide the product specification for the frangible bullets, including what metals are <br /> used to replace the lead in these bullets. <br /> Response: <br /> The Olin Winchester Safety Data Sheet(Attachment 2)provides product <br /> specifications for 5.56 frangible ammunition used at the SFTF for training. Frangible <br /> bullets replace lead with sintered copper powder, tin, zinc and other alloying <br /> compounds. <br /> 6. When the casings and duds from fired ammunition are collected from the paved <br /> ESH-EFA-WP-20-20043 VD/ST.jms <br />