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TABLE 2-1 SUMMARY OF SOIL SAMPLE ANALYSES CALTRANS SHOP 10 STOCKTON,CA Sample Boring No Sam tple Date Depth TPH TPHd Benzene Toluene Eth (benzene Xylenes Sampled b VW-1 09/071% 35 700 NA 015 0 34 008 022 VW-1 09/07M 40 240 NA 210 16 440 15 VW-1 09/07/98 45 160 NA 110 800 027 12 VW-1 C=7/98 50 'Cl NA 1 0 011 0 052 0 011 0 053 VW-11 09/07!96 55 <t NA <0 005 <0 005 'Co 005 <0 005 VW-1 09/07/96 60 <1 NA 0 069 <0 O05 'Co 005 <0 005 VW-1 09!07/96 65 <1 NA <0 005 <0 OD5 <0005 <0 005 VW-1 09/07196 70 <1 NA -Co 005 <0 005 <0 005 cO 005 VW-1 09/07M 75 <1 NA <0 005 <0 O05 <0 005 40005 VW-1 09/07/96 60 <1 NA <0 005 <0 005 <0 005 <0 005 VW-1 09107!36 85 <1 NA 002 <0 005 <0 005 <0 005 VW-1 OgM7196 90 <1 NA <0 005 <0 005 <0 005 <0 OO5 VW-1 09/07195 95 <1 NA <0 005 <0 005 <0 005 <0 005 VW-1 09/07196 100 <1 NA <0 005 <0 005 <0 005 <0 005 VM-1 08/07/1996 40 63 NA 058 0 085 015 046 GEOCON VM-1 08107/1958 50 16 NA 027 027 035 004 VM-1 08/07/1996 65 <1 NA <0 005 <0 005 <0 005 <0 005 VM-1 dup 08/07/1996 65 <1 NA <0 005 <0 005 <0 005 <0 005 VM-2 08106/1996 40 Is NA 035 044 0 042 02 GEOCON VAI!-2 0810BJ1996 50 20 NA 041 072 017 095 VM-2 08/06/1996 60 10 NA 2 Is 027 12 MW-25 08/05/1996 20 <1 NA <0 005 <0 005 <0 005 <1005 GEOCON MW-25 01105/11996 40 <1 NA cO 005 <0 005 <0 005 <0 005 MW-25 08/0511996 65 <1 NA <0 005 <0 005 <0 005 <0 005 MW-28 08/04/1996 20 <1 NA <0 005 1 <0 005 1 <0 005 1 <0 005 GEOCON MW-28 08/04/1996 40 <1 NA <0 005 <0 005 <0 005 <0 005 MW-26 OMW1998 65 <1 NA <0 005 <0 005 <0 005 N 005 Notes TPHg=Total petroleum hydrocarbons as gasoline TPHd=Total petroleum hydrocarbons as diesel mg*g-milligrams per Idlogram NA=Not analyzed ND=Not detected EA=Environmental Assessors,Inc Soil samples collected from soil borings VM-1,VM-2,MW-251 and MW-26 were tested for methyl tert-butyl ether(MTBE) MTBE concer"llom ware below the laboratory detection bmft of 0 0005 mgft in all scll samples tested 7