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08/16/02 FRI 06:44 FAX 1618281 PHILIP ENVIRONMENTAL 0008 <br /> Table 4 <br /> i <br /> Historical Groundwater sample TPH-G and BTE)(Analytical Results <br /> The Earthgrains Company <br /> Stockton,California <br /> Concentration(ug/1) <br /> Well <br /> Date TPH G Benzene Toluene Ethylbenzene Total Xylenes <br /> � MW-4 02/05/1988 1,200 75 85 ND(0.3) 130 19 21 ND(0.3) 31 <br /> 04/26/1988 NT ND(0.3) <br /> 0311911990 ND(50) ND(0.3) ND(0.3) ND(0.5)1,300 110 2,400 <br /> 1 <br /> 03/23/1994 14,000 230 1,100 1 2,100 06/07/1994 7,900 210 710 77 1,500 <br /> 09/07/1994 6,600 180 450 29 1,100 <br /> 02/12/1996 3,700 75 <br /> 380 <br /> 05/13/1996 3,800 66 220 61 <br /> 09/17/1996 ND(50) ND(O.5) ND(O.5) ND(O.5) ND(O.5) <br /> 12/16/1996 6,500 54 330 87 1,400 <br /> 07!15/1997 ND(50) ND(O.5) ND(O.5) ND(0-5) 0.7 <br /> 10/23/1997 ND(50) ND(0.5) ND(O.5) ND(O.5) ND(0.6) <br /> 10/2811998 250 1.1 2.3 1.3 11 <br /> 05/28/1999 ND(50) ND(0.5) ND(O.5) ND(O.5) ND(O.5) <br /> 08/18/1999 350 13 18 22 85 <br /> i 11/08/1999 100 ND(O.5) ND(0-5) ND(O.5) ND(O.5) <br /> 03/15/2000 230 19 16 9.6 41 <br /> 07/02/2000 290 7 23 6.3 33 <br /> 10/19/2000 190 ND(1-0) 3.1 1.3 17 <br /> 01/18/2001 210 ND(O.5) 1.9 0.75 34 <br /> 04/19/2001 ND(50) ND(0-5) ND(O.5) ND(0-5) ND(30.5) <br /> 07/18/2001 ND(60) ND(O.5) ND(O.5) ND(0.5) <br /> 1012312001 ND(50) ND(0.5) ND(O.5) ND(0.5) ND(0.5) <br /> 01/23/2002 150 0.96 2.2 1.7 13 <br /> 04/26/2002 ND(50) ND(O.5) ND(O.5) ND(O.5) ND(1.0) <br /> 08/01/2002 ND(50) ND(O.5) ND(O.5) ND(O.5) ND(1.0) <br /> MW-5 02/05/1988 ND(50) ND(0.3) 0.6 ND(0.3) ND(0-5) <br /> 04/26/1988 NT ND(0.3) 0.7 ND 0 3) ND(0.5) <br /> 03/19/1990 ND(50) ND(0.3) ND(O.3) ( ) <br /> 09/17/1996 ND(50) ND(O.5) ND(O.5) ND(O.5) ND(0-5) <br /> 12/16/1996 ND(50) ND(0.5) 0.64 ND(O.5) ND(O.5) <br /> 0711511997 ND(60) ND(O.5) ND(O.5) ND(O.5) ND(O.5) <br /> 10/23/1997 ND(50) ND(O.5) ND(O.5) ND(0-5) ND(O.5) <br /> 05/21/1998 NT ND(1.0) ND(1.0) ND(1.0) ND(1.0) <br /> 10/28/1998 ND(50) ND(O.5) ND(0.5) ND(O.5) ND(O.5) <br /> 05/28/1999 ND(50) ND(O.5) ND(O.5) ND(O.5) ND(O.5) <br /> I <br /> 1 <br /> env/62400132/121382eg%stockton/h i stla b <br />