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ITABLE 2 <br /> GROUNDWATER ANALYTICAL DATA <br /> I Knowles-Roek <br /> Stockton,California <br /> Page 15 of 15 <br /> Iw (in pap is per billion) <br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> I VW-6 11/21/2000 43,000 580 1,700 710 3,900 <40 <br /> Cont'd 3/8/2001 63,000 1,500 8,900 1,200 7,200 <100 <br /> 5/25/2001 68,000 1,200 9,000 1,500 9,000 <100 <br /> 8/30/2001 Not Sampled <br /> 12/7/2001 50,000 400 960 730 3,800 <50 <br /> 2/20/2002 Not Sampled <br /> 5/23/2002 13,000 10 51 43 1,500 <40 <br /> 8/27/2002 40,000 590 810 1,100 5,300 <20 <br /> 11/14/2002 54,000 680 1,200 1,400 7,400 <100 <br /> 2/19/2003 Not Sampled <br /> I 5/29/2003 41,000 510 780 1,200 4,900 <100 <br /> 8/27/2003 Not Sampled <br /> 11/20/2003 180,000 24,000 34,000 3,400 22,000 <40 <br /> I 2/25/2004 Not Sampled <br /> 5/21/2004 29,000 880 920 1 2,000 7,300 <100 <br /> 8/25/2004 Not Sampled <br /> 11/18/2004 34,000 980 1,500 1 730 2,200 <10 <br /> 2/24/2005 Not Sampled <br /> NOTES <br /> TPHg Total petroleum hydrocarbons as gasoline <br /> MTBE Methy4 tert butyl ether <br /> < = Less than indicated detection limit <br /> Not Analyzed <br /> I * Gasoline is primarily composed of benzene <br /> * Gasoline is primarily composed of methyl tert-buts I ether <br /> I <br /> I <br /> I <br />