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i <br /> TABLE 2 <br /> GROUNDWATER ANALYTICAL DATA <br /> Knowles-Roek <br /> Stockton, California <br /> . Page 10 of 11 <br /> (in parts per billion) <br /> Well Date TPHg Benzene Toluene Ethylhenzene Xylenes MTBE <br /> VW-2 08/17/00 7,400 20 69 87 990 <100 <br /> 11/21/00 19,000 46 110 180 2,200 <40 <br /> 03/08/01 14,000 64 97 200 1,800 <40 <br /> 05/24/01 23,000 73 240 400 4,200 <20 <br /> 08/30/01 Not Sampled <br /> 12/07/01 39,000 150 130 410 5,400 490 <br /> 02/21/02 201000 120 110 330 3400 <40 <br /> 05/23/02 20,000 110 170 320 3,900 <40 <br /> VW-3 08/26/02 Not Sampled <br /> 11/18/97 -- -- -- -- -- <20 <br /> 02/25/98 5,800 200 370 150 1,400 <5 0 <br /> 02/02/00 2,100 92 15 13 40 <5 0 <br /> 05/11/00 850 61 15 4 7 12 <5 0 <br /> 08/17/00 210 09 06 12 45 <50 <br /> 11/20/00 2,400 110 58 85 190 <5 0 <br /> 03/08/01 2,300 77 63 110 79 <10 <br /> 05/25/01 9,900 75 73 280 760 <2 0 <br /> 08/30/01 4,900 45 12 1 79 230 <4 0 <br /> 12/06/01 Not Sampled <br /> 02/21/02 3,200 120 65 1 41 120 <20 <br /> 05/23/02 Not Sampled <br /> 08/26/02 <br /> VW-4 11/18/97 -- -- -- -- <50 <br /> 02/25/98 140 12 19 24 10 <5 0 <br /> 05/11/00 750 22 41 10 47 <5 0 <br /> 08/16/00 3,000 34 95 32 22 <5 0 <br /> 11/20/00 3,500 77 16 54 110 <10 <br /> j 03/08/01 2,000 33 99 16 28 <10 <br /> 05/25/01 3,200 59 18 52 120 <4 0 <br /> 08/30/01 Not Sampled <br /> 12/07/01 1,200 34 70 17 35 <20 <br /> 02/20/02 Not Sampled <br /> 05/23/02 1,600 23 82 1 82 20 <2 0 <br /> 08/26/02 Not Sampled <br /> VW-5 02/02/00 2,200 25 13 28 12 <5 0 <br /> 02/02/00 800 12 24 26 17 <5 0 <br /> 05/11/00 920 18 35 47 78 <5 0 <br /> 08/16/00 1,100 8 6 29 76 32 i <5 0 <br /> 11/20/00 400 13 18 68 77 <5 0 <br /> 03/08/01 660 3.9 1.0 51 17 <20 <br /> 05/24/01 940 8.2 23 10 33 <2 0 <br /> 08/30/01 Not Sampled <br /> 12/07/01 500 4 1 10 1 36 43 <2 0 <br /> 02/20/02 Not Sampled <br /> 05/23/02 2,400 <0 5 13 1 21 380 <20 <br /> 08/26/02 Not Sampled <br />