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TABLE <br /> GROUNDWATER ANALYTICAL DATA <br /> Knowles-Roek <br /> Stockton, California <br /> Page 15 of 15 <br /> (in parts per billion) <br /> M `51' W?0 <br /> -M <br /> �ta <br /> v <br /> R <br /> 7 <br /> R <br /> MIN. <br /> VW-6 11/18/97 <135 <br /> 2/25/98 14,000,000 6,600 43,000 100,000 720,000 <30 <br /> 2/3/00 28,000 420 840 410 2,600 <50 <br /> 5111100 11,000 410 920 250 1,400 <100 <br /> 8/17/00 35,000 640 1,200 700 4,100 <100 <br /> 11/21/00 43,000 580 1,700 710 3,900 <40 <br /> 3/8/01 63,000 1,500 8,900 1,200 7,200 <100 <br /> 5/25/01 68,000 1,200 9,000 1,500 9,000 - <100 <br /> 8/30/01 Not Sampled <br /> 12/7/01 50,000 400 -960---F 730 3,800-1 <50 <br /> 2/20/02 Not Sampled <br /> 5/23/02 13,000 10 51 43 1,500 <40 <br /> 8/27/02 40,000 590 810 1,100 5,300 <20 <br /> 11/14/02 54,000 680 1.200 1,400 7,400 <100 <br /> 2/19/03 Not Sampled <br /> 5/29/03 41,000 510 780 1,200 4,900 <100 <br /> 8/27/03 Not Sampled <br /> 11/20/03 180,000 24,000 34,000 1 3,400 22,000 <40 <br /> 2/25/04 Not Samplcd <br /> NOTES: <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> MTBE = Methyl tert-butyl ether <br /> < = Less than indicated detection limit <br /> Not Analyzed <br /> Gasoline is primarily composed of benzene <br /> Gasoline is primarily composed of methyl tert-butyl ether <br />