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' described above in the LBP section. (See Appendix A,Figures 9,10,20, 22,24, 25,and ' 26). The samples will be analyzed by a California Certified Laboratory using the ' Transmission Electron Microscopy (TEM) (EPA Method 600/R-93/116). The TEM method allows for greater resolution of particles versus the Polarized Light Microscopy (PLM) method. "TEM involves the preparation of soil samples through separating ' asbestos fibers from the surrounding matrix. Aspect ratios are counted to show the ratio of fiber length to width. Sufficient grids (at least 40) should be counted to achieve a sensitivity of 0.0005% by weight." (DTSC, 2004) The samples will be analyzed using ' the CARB 435 preparation method,which includes milling the sample material to 200 mesh (75 microns). The lab will also provide TEM micrographs for each analysis. These micrographs will be included in an appendix of the PEA Report. ' Inter-laboratory and intra-laboratory analysis will be undertaken to monitor systematic errors among microscopists when using Transmission Electron Microscopy (TEM).The ' laboratory will also provide micrographs for each TEM analysis. Auto Maintenance and Semi Volatile Organic Compounds (SVOC's) t On parcels where auto maintenance has been performed as noted during the Site reconnaissance (APN's 149-085-01,03,04,05,06,07, 16,18 19 and 20),obvious concrete or soil staining, stressed vegetation and at the locations of demolished garages, ' samples will be collected at 0-6 inches bgs (surface). These samples will be analyzed for Volatile Organic Compound's (VOC's) using EPA Method 8260B, semivolatile organic compounds (SVOC's) using EPA Method 8270B,TPH-diesel and TPH-Motor Oil using ' 8015M. Additional soil samples may be collected pending surface results. Additionally,APN 149-085-18 was the location of the former carpenters shop,auto ' maintenance shop and paint and painters storage. The footprint of this demolished building will be sampled at 5 sample points. (See Appendix A,Figure 26.) All of these samples will be analyzed as described above. ' PCB's The Phase I Site Reconnaissance noted a transformer on a pole on APN 149-085-13 that ' had unknown Polychlorinated Byphenals (PCB's) content. One (1) surface soil sample from underneath this transformer will be analyzed for VOC's (using EPA method 8260) ' and PCB's (using EPA method 8080). Additional soil samples at 2 feet bgs and 4 feet bgs may be collected and held by the lab pending surface results. ' Poly Aromatic Hydrocarbons (PAH's) Because the house located at APN 149-085-14 burned to the ground within the last decade, additional surface PAH's samples will be collected and analyzed using EPA ' Method 83 10o this property. Additional soil samples at 2 feet bgs and 4 feet bgs may be collected and held by the lab pending surface results. ' PEA Workplan 21 Spanos Elementary School January 18,2006 1