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<br /> TABLE 6
<br /> ANALYTICAL RESULTS OF HISTORICAL GROUND WATER SAMPLES
<br /> TPH and BTEX
<br /> West Clay Property
<br /> 639 West Clay Street Stockton California M
<br /> (µg/1)
<br /> Well 1D Date Depth to TPH as TPH as MTBE Benzene Toluene - Ethyl- Xylenes
<br /> Screen Interval)- __ground water Gasoline Diesel I benzene
<br /> MW-15A 12/26/02 1795 <50 440 NA <0 5 <0 5 <0 5 <0 5
<br /> MW-15B 12/26/02 2170 <50 1,100 NA <0 5 <0 65 <0 5 <0 5
<br /> M _ s
<br /> EW-1 08/11/00 1600 73,000 14,000 <130 1,400 17,000 2,400 12,0000
<br /> (10-30) 12/18/00 1700 14,000 14,000 22 1,600 14,000 2,300 11,000
<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 T
<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 i 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 f
<br /> 12/26/02 1848 14,000 2,700 NA 620 1,300 800 3,100
<br /> EW-2 08/11/00 1 1750 53,000 3,600 <200 4,400 8,600 800 6,900
<br /> (30-35) 12/18/00 jY 1862 350 140 <5 17 61 23 16
<br /> 03/13/01 1750 140 <50 <5 5.3 0.74 6.0 5.2
<br /> 7/b 05/30/01 18 04 370 140 <5 25 - 1.4 30 15
<br /> l 08/28/01 1937 270 94 <5 22 3 2 11 5.6
<br /> 11/28/01 2009 150 <50 <5 7.5 1.0 9.2 6.7
<br /> 02/27/02 1842 92 Y <50 <5 2.8 0.95 3.3 3.7
<br /> 05/28/02 L 1857 110 57 <5 5.6 0.59 9.0 84
<br /> 09/03/02 19 92_ 1,500 320 <25 68 20 99 110
<br /> 12/26/02 2010 590 230 NA 34 41 40 48
<br /> Notes
<br /> µg/1 micrograms per liter
<br /> Advanced GeOnvironmental,Inc
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