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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 /> I
<br /> EPA 8015M EPA 8020/8260
<br /> Sample I D Date gallonsy
<br /> TPH-g TPH-d Benzene Toluene benzene Xylene MTBE
<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 9 5 160 160 <5 0
<br /> 04-15-03 2,139,002 2,200 — 58 24 6 8 55 --
<br /> 05-21-03 2,312,165 4,600 — 150 7 4 100 92 --
<br /> 06-15-03 2,193,675* 3,800 — 130 96 130 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 /> EW-2 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 /> 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 4 3 48 44 <0 5
<br /> 02-18-04 2,764,829 3,500 -- 110 49 71 82 <0 S
<br /> 05-17-04 3,056,982 4,500 75 17 30 50 28*/<0 5
<br /> 06-23-04 3,153,475 2,900 -- 96 44 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 /> of-2c 05 SlDo 170 5:3
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<br /> Advanced GeoEnWronmental,Inc
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