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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 Ethyl-
<br /> TPH-g Benzene Toluene benzene Xylene MTBE
<br /> 02-18-04 2,764,829 1,900 2 9 <0 5 19 11 <0 5
<br /> 05-17-04 3,056,982 6,800 34 12 400 250 <0 5
<br /> 06-23-04 3,153,475 4,300 10 5 8 560 330 <0 5
<br /> 07-22-04 3,244,376 5,300 7 1 16 290 100 <0 5
<br /> 08-19-04 3,325,604 6,100 9 2 27 230 87 <0 5
<br /> 12-18-04 3,481,830 3,600 3 5 7 2 95 63 <0 5
<br /> 01-26-05 3,550,880 7,500 9 0 71 370 280 <0 5
<br /> 02-22-05 3,595,333 7,600 4 6 5 1 170 250 <0 5
<br /> 03-21-05 3,699,220 8,200 7 3 57 670 290 <0 5
<br /> 04-25-05 3,680,354 5,300 11 4 2 560 150 <0 5
<br /> 05-10-05 3,701,758 1,100 <0 5 3 0 29 470 <0 5
<br /> 05-11-05 -- 1,000 <0 5 <0 5 31 50 <0 5
<br /> 05-30-02 226,147 6,800 300 23 270 170 <50
<br /> 09-19-02 1,028,683 8,100 320 31 130 490 <100
<br /> 10-15-02 1,200,093 6,100 280 21 370 390 <50 _
<br /> 02-17-03 1,835,317 6,100 210 18 140 180 <50
<br /> 03-24-03 1,982,381 4,900 150 95 160 160 <5 0
<br /> 04-15-03 2,139,002 2,200 58 2 4 6 8 55 --
<br /> EW-2 05-21-03 2,312,165 4,600 150 74 100 92 --
<br /> 06-15-03 2,193,675* 3,800 130 9 6 130 93 --
<br /> 07-21-03 2,290,214 2,700 80 11 47 32 --
<br /> 08-19-03 2,374,652 5,100 900 28 31 90 45
<br /> 09-16-03 2,459,705 1,300 32 2 3 38 35 <0 5
<br /> 10-18-03 2,557,662 4,700 77 3 3 30 83 <0 5
<br /> 11-17-03 2,566,681 570 31 17 33 23 450*
<br /> 11-24-03 2,579,560 910 90 11 72 93 36*
<br /> Advanced GeoEnvironmental,Inc
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