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TABLE 4
<br /> Analytical Results of Pump-and-Treat Grab Ground Water Samples (µg11)
<br /> Chapin Bros , Inc - 1766 Monte Diablo Avenue, Stockton, California
<br /> EPA 8015M EPA 8020/8260
<br /> Ethyl
<br /> Sample 1 D Date gallons TPH-g TPH-d Benzene Toluene benzene Xylene MTBE
<br /> Pre Remediation
<br /> Influent 04-24-02 15,264 15,000 - 1,300 160 78 2,800 <50
<br /> VW-6 05-30-02 226,147 19,000 - 520 330 1,200 3,800 <500
<br /> EW-1 05-30-02 226,147 940 -- 58 2 1 5 5 24 <5 0
<br /> EW-2 05-30-02 226,147 6,800 -- 300 23 270 170 <50
<br /> EW-3 05-30-02 226,147 27,000 - 1,600 410 1,300 5,400 <500
<br /> _ .Influent 07-I5-02 553,558 4,700 -- 290 23 240 470 <50
<br /> Influent 08=22-02-- 867,749 2,600 ==- 32? 6 4 3'3 120 <50
<br /> EW-1 09-19-02 1,028,683 710 111 <0 5 <0 5 66 <5 0 ,S
<br /> EW-2 09-19-02 1,028,683 8,100 - 320 31 130 490 <100 �}1
<br /> EW-3 04-19-09 1,028,683 12,000 -- 670 44 <10 1,600 <100
<br /> EW-1 10-15-02 1,200,093 1,500 -- 20 19 2 8 33 <17
<br /> EW-2 10-15-02 1,200,093 6,100 -- 280 21 370 390 <50 �, F
<br /> EW-3 10-15-02 1,200,093 11,000 -- 850 110 750 1,600 <100
<br /> VW-6 10-15-02 1,200,093 13,000 - 180 100 770 1,700 <250
<br /> Influent 11-25-02 1,333,838 2,700 -- 95 81 100 180 <25
<br /> L
<br /> Influent 12-10-02 1,592,885 3,600 -- '\46) 77 58 290 <2 5
<br /> Influent 12-27-02 1,677,237 -- 1,700 -- -- -- - -
<br /> 1 31 -111 �q 700 ��{D6 µyJ i y 3'IQ0 F"9�Ir5
<br /> 3.q rnjIK7
<br /> s, S5 3 55$ 9 ( s 3yop rS�J 't° ` 2700 - rso34-3/r-1
<br /> jai 3boc7 _ oaopa3`� k5� 3
<br /> �� tg jAW 1rt04r�Cr�� 7�
<br /> IN 11 1Gaie 3 cam(CrX4&1" Vtie GW6
<br />
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