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TABLE 2
<br /> GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Rock
<br /> Stockton,California
<br /> Page 13 of 15
<br /> (in parts per brllron)
<br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE
<br /> MW-16A 1/30/2003 30,000 9,900 27 82 60 2,500
<br /> 2/19/2003 34,000 6,800 23 49 42 2,900
<br /> 5/29/2003 19,000 6,000 20 22 49 1,300
<br /> 8/27/2003 23,000 5,500 20 22 52 1,400
<br /> 11/20/2003 21,000 7,300 17 38 46 3,300
<br /> 2/26/2004 22,000 5,900 53 67 150 1,500
<br /> 5/21/2004 14,000 8,500 34 65 360 760
<br /> 8/26/2004 10,000 6,300 82 18 27 580
<br /> 11/17/2004 12,000 6,000 48 98 71 960
<br /> 2/23/2005 7,300 5,800 32 20 31 4,700
<br /> 5125105- Not Sampled
<br /> 6/8/2006
<br /> MW-1613 1/30/2003 33,000 1,500 4,600 690 3,700 170
<br /> 2/19/2003 31,000 1,300 3,100 120 3,300 260
<br /> 5/29/2003 27,000 1,900 3,000 130 3,500 87
<br /> 8/27/2003 27,000 1,700 2,700 150 1,800 120
<br /> 11/20/2003 35,000 2,300 5,700 680 3,800 140
<br /> 2/26/2004 15,000 750 280 1,600 <40
<br /> 5/21/2004 17,000 1,800 j29100
<br /> 0 270 3,400 <20
<br /> 8/25/2004 26,000 2,800 0 390 4,900 <100
<br /> 11/17/2004 30,000 2,700 0 930 4,900 14
<br /> 2/23/2005 63,000 4,700 0 1,500 8,000 <100
<br /> 5/25/05- Not Sampled
<br /> 6/8/2006
<br /> ® MW 17C 5/15/2006 <50 <05 <05 <0 5 <1 0 <0 5
<br /> 6/8/2006 <50 <0 5 <0 s <0 5 <1 0 <0 5
<br /> VW-1 2/25/1998 37,000 3,200 7,300 1,400 9,200 <5 0
<br /> 212!2000 180,000 17,000 22,000 2,200 13,000 <50
<br /> 5/11/2000 180,000 22,000 35,000 29500 15,000 X500
<br /> 8/17/2000 120,000 14,000 19,000 1,500 9,000 450
<br /> 11/21/2000 260,000 22,000 36,000 2,700 17,000 <400
<br /> 3/8/2001 1 240,000 23,000 44,000 3,300 18,000 <400
<br /> 5/25/2001 230,000 24,000 42,000 3,100 19,000 400
<br /> 8/30/2001 200,000 22,000 36,000 1 2,700 t 18,000 400
<br /> 1216101- Not Sampled
<br /> 2/20/2002
<br /> 5/23/2002 210,000 23,000 39,000 1 3,100 1 17,000 <1,000
<br /> 8/27/2002 110,000 10,000 18,000 1 1,300 9,300 <1,000
<br /> 11/13/2002 Not Sampled
<br /> 2/2112003 260,000 18,000 30,000 1 3,100 18,000 400
<br /> 5/28/2003 Not Sampled
<br /> 8/28/2003 270,000 19,000 28,000 1 2,600 16,000 <200
<br /> 11/19/2003 Not Sampled
<br /> 2/27/2004 210,000 22,000 33,000 1 2,500 15,000 <200
<br /> 5/21/2004 Not Sampled
<br /> 8/26/2004 110,000 21,000 31,000 2,400 16,000 400
<br /> 11/17/2004 Not Sampled
<br /> 2/24/2005 140,000 1 22,000 36,000 1 3,400 20,000 400
<br /> ILI5/25/2005 Not Sampled
<br /> 8/18/2005 1 200,000 23,000 40,000 3,300 19,000 <400
<br /> 12/22/20051 180,000 19,000 35,000 4,800 28,000 <100
<br /> 3/7/2006 140,000 16,000 33,000 2,300 15,000 <50
<br /> 6/8/2006 180,000 23,000 54,000 4,200 _2,2000 <50
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