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TABLE 4 k
<br /> ANALYTICAL RESULTS OF HISTORICAL GROUND WATER SAMPLES
<br /> TPH and BTEX
<br /> West Clay Property
<br /> 639 West Clay Street, Stockton, California
<br /> Gug/l) _
<br /> i
<br /> Well ID Date Depth to TPH as TPH as MTBE Benzene Ethyl-
<br /> Screen interval) groundwater Gasoline' Diesel Toluene benzene Xylenes
<br /> r
<br /> EW-1 08/11/00 -1600 73,000 14,000 <130 1,400 17,000 2,400 12,000
<br /> (10-30) 12/18/00 1700 14,000 14,000 22 1,600 14,000 2,300 11,000
<br /> 03/13/01 1 1571 39,000 4,300 280 970 7,000 1,300 5,300
<br /> 05/30/01 ! 1639 38,000 8,000 280 1,200 - 6,100 1,700 7,500
<br /> 08/28/01 1767 65,000 5,500 <400 1,700 9,500 2,600 11,000 _
<br /> 11/28/01 ; 1850 53,000 8,300 590 2,000 12,000 2,800 12,000
<br /> 02/27/02 1681 39,000 ,5,900 350 1,300 5,400 1,800 6,700
<br /> 05/28/02 1707 31,000 7,400 <500 1,200 3,900 11800 7,200
<br /> 09/03/02 1829 50,000 12,000 420 1,700 6,500 2,200 9,100
<br /> 12/26/02 1848 , 14,000 2,700 NA 620 1,300 800 3,100 -
<br /> 03/14/03 1795 8,300 11,000 . NA 500 400 540 1,800
<br /> 06/19/03 17 67 86,000 29,000 NA 720 1,600 800 3,320
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<br /> Advanced GcoEnvironmental,Inc
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