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Table 6
<br /> Historic Groundwater Sample TPH-G and BTEX Analytical Results
<br /> The Earthgralns Company
<br /> 2651 South Airport Way, Stockton, California
<br /> Sample Date Concentration u
<br /> ID TPH-G Benzene Toluene Eth (benzene Total Xylenes
<br /> SP-1 8/18/1999 20,000 3,300 430 890 4,200
<br /> 11/8/1999 18,000 2,800 360 780 4,100
<br /> 3/13/2000 20,000 1,400 260 560 2,390
<br /> 7/2/2000 17,000 1,900 260 800 3,600
<br /> 10/19/2000 26,000 2,000 220 960 4,000
<br /> 1/18/2001 23,000 1,900 230 940 4,500
<br /> 4/19/2001 16,000 1,500 200 690 3,700
<br /> 7/19/2001 23,000 2,000 250 820 5,000
<br /> 10/24/2001 26,000 2,100 200 1,000 4,000
<br /> 1/23/2002 27,000 2,100 300 1,100 6,000
<br /> ** 4/26/2002 6,800 620 45 150 1,400
<br /> 8/1/2002 14,000 670 87 250 2,000
<br /> 11/5/2002 9,400 490 26 240 1,500
<br /> 2/5/2003 14,000 490 ND(50) 460 1,700
<br /> 6/24/2004 19,000 920 36 450 1,800
<br /> 10/11/2004 20,000 1,700 200 660 2,700
<br /> 1 SP-2 11/8/1999 4,000 24 11 15 17
<br /> 3/13/2000 ND (50) 39 ND (0 5) 13 72
<br /> 7/2/2000 3,900 25 48 19 53
<br /> 10/19/2000 6,100 33 46 ND(5 0) 2,100
<br /> 1/18/2001 3,300 ND(0 5) 85 11 18
<br /> 4/20/2001 8,200 35 ND(10) 17 37
<br /> 7/19/2001 6,700 11 19 16 29
<br /> 10/24/2001 5,600 68 11 18 40
<br /> 1/24/2002 27,000 710 710 810 2,200
<br /> ** 4/26/2002 4,900 ND(0 5) 1 5 11 10
<br /> 8/1/2002 6,400 35 31 20 69
<br /> 11/5/2002 4,300 12 58 10 37
<br /> 2/5/2003 4,000 ND(5 0) ND(5 0) 72 ND(10 0)
<br /> 6/24/2004 2,000 ND(2 5) ND(2 5) 34 ND(5 0)
<br /> 10/8/2004 1,200 ND(2 5) 6 8 61 ND(2 5)
<br />' SP-3 2/5/2003 ND(50) ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 10/8/2004 ND(50) ND(0 5) ND(0 5) ND(0 5) ND(0 5)
<br /> SP-4 2/6/2003 *400 ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 6/24/2004 230 ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 10/7/2004 240 23 ND(0 5) 077 ND(0 5)
<br /> SP-5 8/18/1999 410 13 18 22 83
<br /> 2/6/2003 ND(50) ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 6/24/2004 ND(50) ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 10/7/2004 ND(50) ND(0 5) ND(0 5) ND(0 5) ND(0 5)
<br /> SP-6 2/6/2003 *220 ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> i6/24/2004 300 ND(0 5) ND(0 5) ND(0 5) ND(1 0)
<br /> 10/7/2004 270 3 9 ND(0 5) 061 ND(0 5)
<br /> ENV 162400132/121362eg/Investigation and Quarterly Reports/Historic TPH+BTEX Results XL51 Historic
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