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Table 1 Soil Analytical Results Frontier Transportation 425 West Larch Road,Tracy,California 95376 Solt Boring ID Date Depth TPHg TPHd Benzene Toluene Ethylbenzene Xylenes MTBE (feet bgs) (mg/kg) (mg/kg) (mglkg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Shallow ESLs 180 180 0.27 9.3 4.7 11 8.4 Dee ESLs 180 180 2 9MNDND 3 4.7 11 8.4 OR 05/30/02 15 ND NA ND 0.053 05/30/02 20 ND NA ND 0.088 MW12 05131/02 5 ND NA ND ND 05/31/02 10 ND NA ND ND 05/31/02 15 ND NA D ND ND 05/31/02 20 ND NA D NDND 05/31/02 25 ND NA D ND05/31/02 30 ND NA D ND ND 05/31/02 40 ND NA ND ND ND ND ND MW13 05/31102 5 2 NA 0.064 0.009 0.017 0.014 2.5 05/31/02 10 700 NA 11 24 17 63 37 05/31102 15 ND NA ND ND ND 0.008 0.081 05131/02 20 ND NA 0.047 0.083 0.021 --'0 076 0.19 05/31/02 25 ND NA 0.005 0.014 0.007 0.025 0.04 05131/02 30 ND NA ND 0.005 ND 0.007 0.037 05/31102 40 ND NA ND ND ND 0.005 ND MW14 06/26/03 5 ND NA ND ND ND ND 0.12 06/26/03 10 ND NA ND ND ND ND 1.56 06/23/03 15 ND NA ND ND ND ND ND 06/23/03 20 1 NA ND ND ND ND ND 08/23/03 25 ND NA ND ND ND ND ND 06123/03 30 ND NA ND ND ND ND ND 06/23/03 35 ND NA ND ND ND ND ND 06/23/03 40 ND NA ND ND ND ND ND MW15 01/27/04 5 ND NA ND ND NO ND ND 01127/04 10 .'4Y1 NA ND ND ND ND 1.31 01/27/04 15 ND NA ND ND ND ND 0.24 01/27/04 20 ND NA ND ND NO ND ND 01/27/04 25 ND NA ND ND ND ND ND 01/27/04 30 ND NA ND NO ND ND ND ro C 01/27/04 35 NID NA ND ND ND ND .0 06 0, 01/27/04 40 ND NA ND ND ND ND ND MIS 01/27/04 5 ND NA ND ND ND ND ND 01/27/04 10 ND NA ND ND ND ND ND 01/27/04 15 ND NA ND ND ND ND 0.132 01/27/04 20 ND NA ND ND ND ND ND 01/27/04 25 ND NA ND ND ND ND ND 01/27/04 30 ND NA ND ND ND ND ND 01/27/04 35 ND NA ND ND ND ND ND 01/27/04 40 ND NA ND ND ND ND ND MW17 01/28/04 5 ND NA ND ND ND ND ND 01/28/04 10 ND NA ND ND ND ND ND 01/28104 15 ND NA ND NO ND ND 0.101 01/28/04 20 1 ND NA ND ND I ND I ND 0.022 Dual-Phase Extraction Remediation Event Report Aint Ar1lni 3 of 5 April 13,2012 j x AssocletesJnc.