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TABLE 4
<br /> ANALYTICAL RESULTS OF PUMP-AND-TREAT GRAB GROUND WATER SAMPLES
<br /> Chapin Brothers Investments, Inc
<br /> 1766 Monte Diablo Avenue, Stockton, California
<br /> EPA 8015M EPA 8020/8260
<br /> Sample 1 D Date Gallons Eth 1-
<br /> TPH-g Benzene Toluene benzene Xylene MTBE
<br /> 12-15-03 2,709,959 2,400 39 8 1 11 45 <0 5*
<br /> 01-26-04 2,820,731 3,300 130 43 48 44 <0 5
<br /> 02-18-04 2,764,829 3,500 110 4 9 71 82 <0 5
<br /> 05-17-04 3,056,982 4,500 75 17 30 50 28*1<0 5
<br /> 06-23-04 3,153,475 2,900 96 4 4 63 59 <0 5
<br /> 07-22-04 3,244,376 3,500 35 10 38 37 <0 5
<br /> 08-19-04 3,325,604 5,800 74 4 62 46 <0 5
<br /> 12-18-04 3,481,830 4,000 43 7 2 25 18 <0 5
<br /> 01-26-05 3,550,880 8,100 120 5 3 76 50 <0 5
<br /> 02-22-05 3,595,333 9,700 260 25 100 450 <0 5
<br /> 03-21-05 3,699,220 8,900 130 12 94 170 <0 5
<br /> 04-25-05 3,680,354 2,100 39 <0 5 14 4 6 <0 5
<br /> 05-10-05 3,701,758 1,100 26 3 4 - 12 1S 2 <0 5
<br /> 05-11-05 -- 2,400 70 7 4 40 45 <0 5
<br /> 05-30-02 226,147 27,000 1,600 410 1,300 5,400 <500
<br /> 09-19-02 1,028,683 12,000 670 44 <10 1,600 <100
<br /> 10-15-02 1,200,093 11,000 850 110 750 1,600 <100
<br /> 02-17-03 1,835,317 11,000 340 70 310 1,100 <50
<br /> 03-24-03 1,982,381 14,000 1,200 140 240 2,100 <25
<br /> EW-3 04-15-03 2,139,002 11,000 840 91 <10 1,400 --
<br /> 05-21-03 2,312,165 14,000 740 100 420 1,700 --
<br /> 06-15-03 2,193,675* 9,900 700 110 26 1900 --
<br /> 07-21-03 2,290,214 7,000 180 32 <0 5 880 --
<br /> 08-19-03 2,374,652 23,000 440 60 78 1400 70
<br /> 09-16-03 2,459,705 3,100 130 16 2 1 340 <0 5
<br /> 10-18-03 2,557,662 5,200 240 30 170 - 700 <0 5
<br /> Advanced GeoEnvironmental,Inc
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