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TABLE 1 -CONSTITUENT CONCENTRATIONS IN SOIL SAMPLES <br /> Drain Sample Depth Below Date MTBE Benzene Toluene Ethyl Xylenes TPH-G TPH-D Total Oil& PNAs <br /> Inlet Number(a) Ground Surface Sampled benzene Grease <br /> (feet) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) <br /> DI-1 <br /> SBA 10 5-Nov-97 40.005 40.005 <0.005 ✓9.005 <0.005 <1.0 <1.0 <50✓ <0.330 <br /> SB-2 9 5-Nov-97 L0.005 <0.005 <0.005 <0.005 26 005 'CT.O 0 76✓ <br /> 14<0-005 - <br /> SB-3 9 5-Nov-97 `140.005 -<0.005 0.005 'L--<0.005005 1111.0 L-<'10 <50./ - <br /> DI-2 <br /> SB-4 9 5-Nov-97 X0.005 .005 ✓40.005 .005 .005 X1.0 10180 <0.330 <br /> 05 x6 <br /> SB-5 8 5-Nov-97 -<0.005 -60.005 -40 .005 't6.005 41.0 <1.0 <50 - <br /> SB-6 8 5-Nov-97 v-dD.005 ✓40.005 ✓40.005 4005 %t6.005 V<1.0 %ef-0 <50•✓ - <br /> DI-3 <br /> SB-7 9 5-Nov-97 .005 `140.005 005 X9.005 x.005 1�°I.0 ef9 450✓ 40.330 <br /> SB-8 8 5-Nov-97 40.005 ✓40.005 005 ✓✓40.005 1��.005 .0 ,,C�0 450 ✓ - <br /> SB-9 8 5-Nov-97 1-60.005 -<0.005 vk0.005 -0.005 .:0.005 *tA tWO <50,/ - ✓ <br /> DI-4 <br /> SB-10 10 5-Nov-97 -<-'0.005 X'0.005 A4005 k6.005 005 k1j.0 1 18 - <br /> SBA 1 .8 5-Nov-97 X005 .005 W6.005 :9:005 1.005 %5 0 7 - <br /> SB-12 8 5-Nov-97 K0.005 \,9.005 005 -<0.005 .005 <1.0 ✓41_0 <50✓ - <br /> SB-13 13 5-Nov-97 *0.005 V <P005 ✓f 0.005 \-4.005x.005 41.0 �''<1.9� <50 <0.330 ✓ <br /> SB-14 12 5-Nov-97 X0.005 ✓<0.005 V<0.005 w6.005 X005 I*t.0 I0 <50 - <br /> a. See Figure 1 for sampling locations. <br /> b. Laboratory analysis methods: <br /> Methyl Tertiary Butyl Ether(MTBE)by EPA Method 8020 <br /> Benzene,Toluene,Ethylbenzene,and Xylenes by EPA Method 8020 <br /> Total Petroleum Hydrocarbons as Gasoline (TPH-G)by EPA Method 8015 modified <br /> Total Petroleum Hydrocarbons as Diesel(TPH-D)by EPA Method 8015 modified <br /> Polynuclear Aromatics(PNAs)by EPA Method 8270 <br /> 2' <br />