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tow) � 1 <br />� i <br /> 3.4 LABORATORY.ANALYSIS <br /> All collected soil samples were submitted to FU Environmental a California certified <br /> hazardous materials testing laboratory for analysis following chain-of-custody procedures. <br /> Selected soil samples were analyzed for TPH-g following .EPA method 8015M, and <br /> benzene, toluene, ethylbenzene and total xylenes (BTEX) following EPA. Modified 8020. <br /> The soil samples were also analyzed for methyl tertiary butyl ether (MTBE); di-isopropyl <br /> t ether (DIPS), ethyl tert-butyl ether (ETRE), tert-amyl methyl ether (TAME), and tert-Butanol <br /> (TB) following EPA method 8260. Laboratory detection limits and holding times :met the <br /> r PHDIEHS requirements. The results of analytical .testing are discussed in Section 4.3. <br /> ' The laboratory reports and chain of custody documentation are includedin Appendix.C. <br /> A total of four soil samples and one groundwater.sample Were.analyzed. <br /> TABLE .4 <br /> Schedule of Soil-Sample Analysis <br /> SAMPLE DEPTH TVPH-GAS BTEX FIVE HOLD <br /> 8015M 8020 OXENATES <br /> f (8260) , <br /> Borehole B-1 (SW Corner of Excavation) . <br /> B1-0-2' 0-2' X <br /> 131-2-4' 2-4' X <br /> tk 61-4-5' 4-5' X <br /> 131-5-6' 5-6' Y X <br /> + B1-6-7' 6-7' X <br /> ' 61-7-8' 7-8' <br /> X <br /> B1-8-9' 8-9' X <br /> B1-9-10' 9-10' <br /> LX <br /> B1-10-11' 10-11' X X X <br /> 131-11-12' 11-12' X <br /> s 81-12-13' 12-13' X X X <br /> B1-13-14' 13-14' 1 X <br /> 81-14-15' 14-15' X <br /> r 'r 61-15-16' 15-16' X X X <br /> B1-16-17' 16-17' X <br /> 131—17-18' 17-18' X <br /> B1-20-22' 1 20-22' X X X <br /> - W-1 -- X X ix <br />