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TABLE I SUMMARY OF SOIL ANALYTICAL RESULTS (BTEX): 0 TO 10 FEET BGS' US CAN-WELTY ROAD 35275 Welty Road Vernalis,California Concentrations in mg/kg Depth Boring ID (feet b s) Date Collected Benzene Toluene Eth lbenzene Total Xylenes 1995 Site Investigations (ERM-West, 1995)a S-6 1.5 4/28/1995 <0.1 <0.1 <0.1 <0.1 S-6 3 4/28/1995 <0.1 <0.1 6.5 7.6 HB-3 4 5/9/1995 ND ND 5.5 ND HB-3 6 5/9/1995 ND ND 11 ND HB-3 8 5/9/1995 0.47 0.4 13 1.7 HB-3 10 5/9/1995 ND ND 20 ND HB-4 8 5/9/1995 0.47 0.4 6.3 1.7 HB-4 10 5/9/1995 ND ND 14 7.8 HB-6 6 5/9/1995 ND ND 4.2 ND HB-6 8 5/9/1995 ND ND 10 ND HB-6 10 5/9/1995 ND ND 16 ND Phase I Site Characterization (WHF,1996) RB-1 2.5 3/6/1996 <0.005 <0.005 <0.005 <0.010 RB-2 2.5 3/6/1996 <0.005 <0.005 <0.005 <0.010 RB-3 2.5 3/6/1996 <0.005 <0.005 <0.005 <0.010 RB-4 2.5 3/6/1996 <0.005 <0.005 <0.005 <0.010 RB-5 1 2.5 1 3/6/1996 <0.005 <0.005 <0.005 <0.010 RB-6 2.5 3/6/1996 <0.005 <0.005 <0.005 <0.010 Site Investigation (Geological Technics,1996)a MW-1 10 9/30/1996 <0.003 <0.003 <0.003 <0.003 SB-1 6.5 9/30/1996 <0.003 0.004 <0.003 <0.012 SB-2 6.5 9/30/1996 <6 <6 48.8 87 SB-3 6.5 9/30/1996 <0.003 <0.003 <0.003 0.009 Site Investigation (Radian,1998)s B-1 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-1 10 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-2 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-2 10 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-3 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-3 10 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-4 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-4 10 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-5 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B-5 10 7/15/1998 <0.5 <0.5 <0.5 <0.5 B-6 5 7/15/1998 <0.005 <0.005 <0.005 <0.005 B7/MW2 6 5 7/22/1998 <0.0005 <0.0005 <0.0005 0.0077 B7/MW2 6 10 7/22/1998 <0.0005 0.006 0.0093 0.031 B8/MW-3 6 10 7/23/19988 <0.0005 <0.0005 <0.0005 <0.0005 B9/MW-4 6 5 7/23/1998 <0.0005 <0.0005 <0.0005 <0.0005 B9/MW-4 6 10 7/23/1998 <0.0005 <0.0005 <0.0005 <0.0005 Page 1 of 3 SAIC.