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<br /> TABLE 4
<br /> ANALYTICAL RESULTS OF GROUND WATER SAMPLES
<br /> Tracy Marine Sales
<br /> 2353 Toste Road, Tracy, California
<br /> (µg/1)
<br /> TPH as
<br /> Sample Sample Gasoline MTBE Benzene Toluene benzene Xylenes DIPE ETBE MTBE TAME TBA EDB 1,2-DCA
<br /> Location Date
<br /> EPA Methods 8015m/8020/8021/8260 EPA Method 8260
<br /> MW-7 12/02/99 44,000 88,000 4,700 7,200 1,500 5,600 <2,500 <2,500 99,000 <2,500 <13,000 NA NA
<br /> 01/13/00 17,000 43,000 1,400 1,100 270 1,100 <1,000 <1,000 31,000 <1,000 <5,000 NA NA
<br /> 04/12/00 6,400 27,000 880 560 190 370 <720 <720 30,000 <720 <3,600 NA NA
<br /> 09/08/00 2,900 9,700 190 120 51 96 <250 <250 9,700 <250 <1,300 NA NA
<br /> 12/08/00 21,000 120,000 5,000 1,400 810 1,600 <5,000 <5,000 130,000 <5,000 <25,000 NA NA
<br /> 03/30/01 2,800 27,000 460 160 120 160 <500 <500 21,000 <500 <2,500 NA NA
<br /> 06/29/01 2,800 16,000 390 330 85 160 <500 <500 13,000 <500 <2,500 NA NA
<br /> 09/27/01 5,900 18,000 820 890 140 380 <350 <350 20,000 <350 <1,750 NA NA
<br /> 12/20/01 17,000 7,600 570 330 110 220 <1.0 1.8 6,900 25 1,200 NA NA
<br /> 03/23/02 12,000 37,000 1,700 1,700 460 840 <500 <500 41,000 <500 <5,000 <500 <500
<br /> 06/28/02 16,000 NA 750 480 26 300 <10 <10 21,000 <10 2,100 <5.0 <5.0
<br /> 09/26/02 22,000 NA 830 1,100 250 720 <10 <10 22,000 36 470 <5.0 <5.0
<br /> 01/03/03 36,000 NA 530 1,100 86 250 <1 <1 21,000 24 770 <0.5 <0.5
<br /> 03/31/03 12,000 14,000 230 40 8.3 45 <1 <1 15,000 18 410 <0.5 <0.5
<br /> 07/15/03 43,000 NA 1,900 26 32 113 <1 <1 43,000 57 25 <0.5 <0.5
<br /> Advanced GeoEnviron mental,Inc.
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