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' Table 6 . Historic Groundwater Sample Analytical Results - BTEX and TPH-G 1 Earthgralns Baking Companies, Inc 2651 South Airport Way Stockton, California 95206 Sample Date Concentration L ID Benzene Toluene Ethylbenzene Total Xylenes TPH-G MW-12 3/23/1994 ND(0 5) ND(0 5) ND(0 5) ND(0 5) ND(50) 6/07/1994 045 ND(0 3) 082 16 ND(50) 9/08/1994 ND(0 3) 081 069 2 8 ND(50) 2/12/1996 31 52 4 11 310 5/14/1996 74 18 16 19 600 12/16/1996 16 31 27 43 900 7/15/1997 85 26 12 ND(2 5) 2,000 ' 10/23/1997 32 ND(5 0) 19 ND(5 0) 4,100 1/29/1998 17 ND(5 0) ND(5 0) ND(5 0) NA 5/21/1998 26 36 66 36 NA 10/28/1998 11 ND(5 0) 85 62 11900 5/28/1999 18 55 29 26 2,200 8/18/1999 57 50 44 170 1,000 11/08/1999 14 44 22 1 2 1,700 3/13/2000 59 ND(5 0) ND(5 0) ND(5 0) 11,000 7/02/2000 26 42 94 47 1,500 10/19/2000 57 48 ND(2 5) ND(2 5) 2,800 1/18/2001 53 1 4 059 1 1 430 4/20/2001 22 43 28 35 1,300 7/19/2001 18 ND(10) ND(10) ND(10) 1,300 10/24/2001 17 ND(2 5) ND(2 5) 74 1,100 1/23/2002 14 47 28 10 1,100 ** 4/26/2002 ND(0 5) ND(0 5) ND(0 5) ND(1 0) 690 8/01/2002 ND(0 5) ND(0 5) ND(0 5) ND(1 0) 550 11/05/2002 ND(0 5) ND(0 5) ND(0 5) ND(1 0) *440 2/06/2003 ND(0 5) ND(0 5) ND(0 5) ND(1 0) *500 6/24/2004 ND(0 5) ND(0 5) ND(0 5) ND(1 0) 120 10/07/2004 19 ND(0 5) 075 ND(0 5) 160 1/31/2005 ND(0 5) ND(0 5) ND(0 5) ND(0 5) 120 4/25/2005 ND(0 5) ND(0 5) ND(0 5) ND(1 0) 190 1 1 1 ENV/62400132/121382eg/Investigation and Quarterly Reports/Table 4&6 TPH+BTEX Results(2005.02)XLS/Historic(2)