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TABLE 2
<br /> GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Roek
<br /> Stockton,California
<br /> Page 4 of 15
<br /> • (in parts per brllion)
<br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE
<br /> MW-4 51-441200 1 92,000 291000 36 2,500 2,100 3,100
<br /> Cont'd 8/30/2001 67,000 17,000 67 2,200 2,300 3,200
<br /> 12/7/2001 58,000 17,000 120 1,000 1,700 8,300
<br /> 2/21/2002 40,000 18,000 120 760 700 10,000
<br /> 5/22/2002 35,000 8,900 <12 5 860 510 15,000
<br /> 8/27/2002 33,000 7,500 23 1,300 780 14,000
<br /> 11/14/2002 39,000* 8,500 43 1,700 1,200 4,700
<br /> 2/21/2003 37,000 6,500 28 750 750 5,300
<br /> 5/29/2003 28,000 6,400 17 45 100 10,000
<br /> 8/28/2003 29,000 6,000 41 38 500 7,500
<br /> 11/20/2003 27,000 6,500 69 87 1,200 8,500
<br /> 2/27/2004 18,000** 3,600 57 35 87 9,200
<br /> 5/21/2004 12,000 4,400 58 46 110 5,900
<br /> 8/25/2004 9,400 4,000 21 63 68 4,400
<br /> 11/18/2004 9,000 4,200 65 69 76 10,000
<br /> 2/24/2005 3,700 1 410 470 49 L 280 8,100
<br /> 5/25/05-
<br /> 1 ' 6/8/2006 2!" 11. Not Sampled
<br /> MW-5 5/16/1995 12,000 1,400 42 890 520 --
<br /> 11/9/1995 20,000 2,700 X25 1,900 1600 --
<br /> 2/9/1995 14,000 1,400 <10 1,800 420 --
<br /> 4/25/1996 19,000 1,700 43 1,500 750 -
<br /> 8/8/1996 22,000 2,600 22 900 850 -
<br /> 11/6/1996 25,000 3,200 20 1,300 1,200 --
<br /> 2/6/1997 19,000 2,600 180 1,100 1,200 --
<br /> 5/8/1997 17,000 2,200 140 1,600 1,700
<br /> 7/23/1997 20,000 3,800 51 1,200 1,700 <40
<br /> 11/20/1997 20,000 3,800 42 1,200 1,500 <5 0
<br /> 2/27/1998 34,000 5,400 400 1,400 2,200 <30
<br /> 5/6/1998 38,000 5,300 450 1,400 2,400 --
<br /> 8/12/1998 29,000 6,600 230 1,600 2,400
<br /> 11/11/1998 19,000 3,600 <40 990 2,000
<br /> 2/12/1999 20,000 3,900 54 1,100 1,400 --
<br /> 5/4/1999 21,000 3,100 32 980 1,200 -
<br /> 8/5/1999 23,000 3,404 1 56 840 950 --
<br /> 11/18/1999 18,000 2,800 71 790 890 <50
<br /> 2/4/2000 17,000 2,400 31 490 880 <5 0
<br /> 5/9/2000 16,000 2,200 27 710 1,200 <5 0
<br /> 8/16/2004 32,000 3,900 76 1,600 3,200 <25
<br /> 11/21/2000 32,000 2,600 120 1,000 1,500 <100
<br /> 3/8/2001 22,000 1,800 81 1,100 1,500 <100
<br /> 5/24/2001 25,000 2,800 97 1,500 1,700 <40
<br /> 8/30/2001 21,000 1,800 180 940 1,400 <40
<br /> 12/7/2001 17,000 2,200 270 770 11100 <20
<br /> 2/21/2002 11,000 1,400 150 580 790 <2 0
<br /> 5/22/2002 28,000 3,300 1 360 1,300 2,000 <20
<br /> 8/27/2002 36,000 4,000 480 1,200 2,200 <10
<br /> 11/13/2002 7,500* 610 68 200 290 X20
<br /> 2/2/ 0/2003 1 18,000 1 500 88 550 750 <20
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