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i <br /> TABLE 2 <br /> i <br /> GROUNDWATER ANALYTICAL DATA <br /> Knowles-Roek <br /> Stockton, California <br /> Page 10 of 10 <br /> (in parts per bilhon) <br /> Well I Date TPHg B T E X MTBE <br /> VW-3 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 47 12 <5 0 <br /> 08/17/00 210 09 06 12 45 <5 0 <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 79 230 <4 0 <br /> 12/06/01 Not Sam led <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 /> 03/08/01 .21000 33 99 16 28 <10 <br /> 05/25/01 3,200 59 18 1 52 120 <4 0 <br /> • 08/30/01 Not Sampled <br /> 12/07/01 1 1,200 34 70 17 35 <2 0 <br /> VW-5 02/02/00 2,200 25 13 28 12 <5 0 <br /> 02/02/00 800 12 2.4 2.6 17 <5 0 <br /> 05/11/00 920 18 35 47 78 <5 0 <br /> 08/16/00 1,100 86 29 76 32 <5 0 <br /> 11/20/00 400 13 18 68 77 <5 0 <br /> 03/08/01 660 39 1 0 51 17 <2 0 <br /> 05/24/01 940 82 23 10 33 <2 0 <br /> 08/30/01 Not Sampled <br /> 12/07/01 500 41 10 36 43 <2 0 <br /> VW-6 11/18/97 -- -- -- -- -- <135 <br /> 02/25/98 14,000,000 6,600 43,000 100,000 720,000 <30 <br /> 02/03/00 28,000 420 840 410 2,600 <50 <br /> 05/11/00 11,000 410 920 250 1,400 <100 <br /> 08/17/00 35,000 1 640 1,200 700 4,100 <100 <br /> 11/21/00 43,000 580 1,700 710 3,900 <40 <br /> 03/08/01 63,000 1,500 8,900 1,200 7,200 <100 <br /> 05/25/01 68,000 1,200 9,00() 1,500 9,000 <100 <br /> 08/30/01 Not Sampled <br /> 12/07/01 50,000 400 96U 730 3,800 <50 <br /> NOTES <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> • BTEX = Benzene,Toluene,Ethylbenzene,total Xylenes <br /> MTBE Methyl tart-butyl ether <br /> < = Less than indicated detection Iemit <br /> -- = Not Analyzed <br />