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Table 4 <br />Historical Groundwater Sample TPH-G and BTEX Analytical Results <br />The Earthgrains Company <br />Stockton, California <br />Well Date <br />Concentration (ug/1) <br />TPH-G Benzene Toluene Ethylbenzene Total Xylenes <br />MW -3 10/23/1997 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5)i; <br />09/08/1987 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5) <br />03/19/1990 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5) <br />12/20/1990 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5) <br />04/09/1992 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5)' <br />07/30/1993 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5). <br />03/23/1994 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0-5) <br />ND(0.5) <br />06/07/1994 <br />ND(50) <br />ND(0.3) <br />ND(03) <br />ND(0.3) <br />ND(0.5) <br />09/08/1994 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5) <br />02/12/1996 <br />ND(50) <br />ND(0-3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5), <br />05/15/1996 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5): <br />09/16/1996 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />12/16/1996 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />07/15/1997 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />10/23/1997 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5), <br />05/28/1999. <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />MW -4 02/05/1988 <br />1,200 <br />75 <br />85 <br />ND(0.3) <br />130 <br />04/26/1988 <br />NT <br />19 <br />21 <br />ND(0.3) <br />31 <br />03/19/1990 <br />ND(50) <br />ND(0.3) <br />ND(0.3) <br />ND(0.3) <br />ND(0.5) <br />03/23/1994 <br />14,000 <br />230 <br />1,300 <br />110 <br />2,400 <br />06/07/1994 <br />7,900 <br />210 <br />1,100 <br />97 <br />2,100 <br />09/07/1994 <br />6,600 <br />180 <br />710 <br />77 <br />1,50011 <br />02/12/1996 <br />3,700 <br />75 <br />450 <br />29 <br />1,100: <br />05/13/1996 <br />3,800 <br />66 <br />220 <br />61 <br />380 <br />09/17/1996 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />12/16/1996 <br />6,500 <br />54 <br />330 <br />87 <br />1,400 <br />07/15/1997 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />0.7 <br />10/23/1997 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />10/28/1998 <br />250 <br />1.1 <br />2.3 <br />1.3 <br />11 <br />05/28/1999 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />08/18/1999 <br />350 <br />13 <br />18 <br />22 <br />85 <br />11/08/1999 <br />100 <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />03/15/2000 <br />230 <br />19 <br />16 <br />9.6 <br />41 <br />07/02/2000 <br />290 <br />7 <br />23 <br />6.3 <br />33 <br />10/19/2000 <br />190 <br />ND(1.0) <br />3.1 <br />1.3 <br />17 <br />01/18/2001 <br />210 <br />ND(0.5) <br />1.9 <br />0.75 <br />34 <br />04/19/2001 <br />ND(50) . <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />07/18/2001 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />3 . <br />10/23/2001 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />01/23/2002 <br />150 <br />0.96 <br />2.2 <br />1.7 <br />13 1' <br />env/62400132/ 1 21 382 eg/stockto n/h i st1 a b <br />