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<br /> TABLE 4
<br /> ANALYTICAL RESULTS'OF HISTORICAL GROUND WATER SAMPLES ! "'
<br /> TPH and BTEX
<br /> r -
<br /> West Clay Property
<br /> 639 West Clay Street, Stockton, California r
<br /> - (Rg/1) `s
<br /> Well II} d,
<br /> Depth to TPH as TPH as Ethyl-
<br /> (Screen -Date ound Ovate Gasoline Diesel MTBE Benzene Toluene UWenzene Xylenes
<br /> _ interval
<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 a
<br /> 03/13/01 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 1,800 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 6
<br /> 06/19/03 1767 86,000 29,000 NA 720 1,600 x800 3,320
<br /> 09/12/03 1852 42,000 19 NA 960 420 560 6,500
<br /> 11/13/03 1881 NS NS NA NS NS NS NS ,
<br /> 02/05/04 abandoned abandoned abandoned abandoned abandoned abandoned abandoned abandoned
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