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LLNL-AR-788093 <br /> External <br /> 2.2 CWC 132 —Engineering (321, 321C) Coolant from Machining Operations <br /> Site 2018 quantity (lb) <br /> LLNL 5,405 <br /> Raw materials: cutting 10 Machining Machined parts <br /> fluid,water,machine operations <br /> oils <br /> IF <br /> Spent coolants from <br /> te <br /> machining operations Of disposal <br /> FIGURE III.1.1 ENGINEERING(321,321C)COOLANT FROM MACHINING OPERATIONS <br /> Oil from machining operations is usually in the form of soluble oil that is mixed with water <br /> and acts as a coolant for parts and tools in machining processes. In addition, non-soluble oils, <br /> usually called"tramp oils" are generated from lubrication of mechanical parts in the <br /> machine, such as gears and sliding worktables. <br /> Acquisition of numerically controlled machines, which internally recycle and filter the <br /> cutting fluid will continue to help reduce machining coolant waste in the future for <br /> comparable production levels. In addition, LLNL utilizes alternative cutting technologies <br /> such as high-power water jet machining. <br /> SOURCE REDUCTION/POLLUTION PREVENTION EVALUATION <br /> Description of Measure: <br /> LLNL plans to continue to upgrade and expand capacity with machines with more <br /> modern internal coolant recycling systems. No other source reduction measures are <br /> planned at this time. <br /> September 1, 2019 SB14 Plan III-5 <br /> ESH-EFA-P2S-19-16592 <br />