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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 -12 <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 />0.45 <br />ND(0.3) <br />0.82 <br />1.6 <br />09/08/1994 <br />ND(50) <br />ND(0.3) <br />0.81 <br />0.69 <br />2.8 <br />02/12/1996 <br />310 <br />3.1 <br />5.2 <br />4 <br />11 <br />05/14/1996 <br />600 <br />7.4 <br />1.8 <br />16 <br />19 <br />12/16/1996 <br />900 <br />16 <br />3.1 <br />27 <br />4.3 <br />07/15/1997 <br />2,000 <br />8.5 <br />2.6 <br />12 <br />ND(2.5) <br />10/23/1997 <br />4,100 <br />32 <br />ND(5.0) <br />19 <br />ND(5.0) <br />01/29/1998 <br />NT <br />17 <br />ND(5.0) <br />ND(5.0) <br />ND(5.0) <br />05/21/1998 <br />NT <br />26 <br />3.6 <br />66 <br />3.6 <br />10/28/1998 <br />1900 <br />11 <br />ND(5.0) <br />8.5 <br />6.2 <br />05/28/1999 <br />2200 <br />18 <br />5.5 <br />2.9 <br />2.6 <br />08/18/1999- <br />1000 <br />57 <br />50 <br />44 <br />170 <br />11/08/1999 <br />1700 <br />14 <br />4.4 <br />2.2 <br />1.2 <br />03/13/2000 <br />11,000 <br />5.9 <br />ND(5.0) <br />ND(5.0) <br />ND(5.0) <br />07/02/2000 <br />1,500 <br />26 <br />42 <br />9.4 <br />47 <br />10/19/2000 <br />2,800 <br />57 <br />4.8 <br />ND(2.5) <br />ND(2.5) <br />01/18/2001 <br />430 <br />5.3 <br />1.4 <br />0.59 <br />1.1 <br />04/20/2001 <br />1,300 <br />22 <br />4.3 <br />2.8 <br />3.5 <br />07/19/2001 <br />1,300 <br />18 <br />ND(10) <br />ND(10) <br />ND(10) <br />10/24/2001 <br />1,100 <br />17 <br />ND(2.5) <br />ND(2.5) <br />7.4 <br />01/23/2002 <br />1,100 <br />14 <br />4.7 <br />28 <br />10 <br />MW -13 <br />03/23/1994 <br />6,500 <br />99 <br />19 <br />30 <br />330 <br />06/07/1994 <br />7,100 <br />150 <br />26 <br />42 <br />420 <br />09/08/1994 <br />6,800 <br />160 <br />24 <br />51 <br />150 <br />02/12/1996 <br />2,600 <br />49 <br />6 <br />20 <br />78 <br />05/15/1996 <br />5,000 <br />65 <br />32 <br />41 <br />74 <br />09/16/1996 <br />2,100 <br />21 <br />18 <br />8.6 <br />27 <br />12/16/1996 <br />69 <br />ND(0.5) <br />1.6 <br />ND(0.5) <br />1.3 <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 />01/29/1998 <br />NT <br />ND(5.0) <br />ND(5.0) <br />ND(5.0) <br />ND(5.0) <br />10/28/1998 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />05/28/1999 <br />190' <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />08/18/1999 <br />380 <br />11 <br />15 <br />18 <br />72 <br />11/08/1999 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />03/15/2000 <br />67 <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />07/02/2000 <br />180 <br />6.2 <br />20 <br />5.1 <br />28 <br />10/19/2000 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />01/18/2001 <br />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <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 />ND(0.5) <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 />ND(50) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />ND(0.5) <br />CPT -1@45' <br />05/18/1999 <br />ND (50) <br />ND (0.5) <br />0.8 <br />ND (0.5) <br />ND (0.5) <br />CPT -1@85' <br />05/18/1999 <br />ND (50) <br />ND (0.5) <br />ND (0.5) <br />ND (0.5) <br />ND (0.5) <br />env/62400132/121382 eg/stockton/h i st1 a b <br />