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IV. Catc2ory C 1. CWC 134: Aqueous solution with total organic residues less than 10 percent Site 12006 Quantity (lb)2010 quantity (lb) LLNL 144 10 1.1 National Ignition Facility Optics Onerations The 2006 44 lbs of this waste stream (identified as CWC 134) waste stream was generated from National Ignition Facility (NIF) optics operations. The same process generated 41 lbs of the waste stream (identified as CWC 135) in 2010. This process is already optimized for minimal waste generation. CWC 135: Unspecified aqueous solution Site 2006 Quantity (lb)2010 quantity (lb)' LLNL 1342 14,863 2.1 Optic etching This waste stream is from NIF etching operations performed on new optics received from the vendor. The process has been optimized to generate the minimal amount of waste while producing the high quality optics required. For example, etchant is only changed out after the solution is completely spent after 20 optics. About 40 gallons per year of waste is generated from this process. In 2006, a total of 332 lbs of CWC 135 (241 lbs) and CWC 791 (91 lbs) waste was generated by this process. In 2010, a total of 325 lbs of CWC 131 (109 lbs) and CWC 135 (216 lbs) waste was generated. An additional 101 lbs of Category C waste was included in the 2007 SB14 Plan total for CWC 135. This was from research and development activities associated with optics proof -of -concept research. In 2010, 37 lbs of waste was generated from this process, which varies from year to year. This waste stream is not included in the 2011 SB14 Plan because it fits within the exempted category: "Wastes generated from laboratory scale research". It is mentioned here because it was previously included in the 2007 S1314 Plan. Note that in 2010, 109 lbs of the optics processing waste stream was characterized as CWC 131. The remaining 216 lbs of waste was characterized as CWC 135. They are combined here since they are from the same optics processing operation. Other etching operations generate CWC 135 wastestream periodically based on the volume of new optics required for programmatic operations. The process has been optimized to generate the minimal amount of waste while producing the high quality optics required. For example, optics are batched to minimize solution change out between optic types, and baths are reused. During late 2009 and early 2010 a large number of new optics were processed resulting in 4,606 lbs of waste generated in 2010. Another batch is currently scheduled through early 2012. Beyond 2012, this process is expected to be operated at approximately 50% capacity to support ongoing NIF operations. In 2009, NIF started implementation of an optics repair process to extend the life of the optics. This operation continued to expand in 2010 and reduces both the need to acquire new replacement optics and the chemicals used to process them. An additional 41 lbs of CWC 135 waste was generated as part of other NIF optics operations as discussed in Section 1.1 (Category C CWC 134). September 1, 2011 SS 14 Report 35 September 1, 2011 SB 14 Report 36