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TABLE 4 <br /> HISTORICAL ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> EPA METHODS 8015M/8021 <br /> Former Chase Chevrolet (Madison) Facility <br /> ' 423 North Madison Street, Stockton, California <br /> I <br /> ' Sample Depth Ethyl- <br /> Location SampleD Date <br /> to TPH-g TPH-d TPH-mo MTBE Benzene Toluene benzen" Xylene <br /> screen Water e <br /> ' MW-20A 08-12-98 1475 <50 92 <250 NA <0 5 <0 5 <0 5 <0 5 <br /> (12-32) I 1-03-98 1623 <50 200 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 02-02-99 1574 <50 170 <250 <5 0 <0 5 <05 <0 5 <0 5 <br /> 05-05-99 1501 <50 130 <250 <5 0 <0 5 13 <0 5 18 <br /> ' 08-11-99 1539 <50 <50 <250 <5 0 <0 5 <05 <0 5 0S5 <br /> 11-09-99 1663 3,200 3,900 480 <10 280 43 190 21 <br /> 02-08-00 1610 <50 140 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 05-10-00 1441 <50 150 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 08-21-00 1525 <50 140 <250 <5 0 <0 5 <0 5 <0 5 <0 S <br /> 11-28-00 1657 <50 200 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 02-28-01 1589 <50 220 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 05-21-01 1583 <50 190 <250 <5 0 <0 5 <0 5 <0,5 <0 5 <br /> 08-16-01 1644 <50 200 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 11-14-01 1755 <50 100 <250 <5 0 <0 5 <05 <0 5 <0 5 <br /> 02-13-02 1678 <50 190 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 05-16-02 1683 <50 110 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 09-30-02 1769 NS NS NS NS NS NS NS NS <br /> 12-02-02 1838 NS NS NS NS NS NS NS NS <br /> '. 02-21-03 1771 NS NS NS NS NS NS NS NS <br /> MW-21A 08-12-98 1318 9,000 7,800 320 NA 210 55 230 47 <br /> (12-32) 11-03-98 1476 3,200 18,000 1,200 <10 170 27 160 39 <br /> 02-02-99 1419 4,200 6,500 500 <10 240 <0 5 210 45 <br /> ' 05-05-99 1353 5,200 8,900 <250 <5 0 170 30 140 31 <br /> 08-11-99 1390 2,900 8,600 <250 <10 190 47 120 27 <br /> 11-09-99 1513 <50 110 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> 02-08-00 1458 3,800 3,100 810 <18 1,500 38 1,200 66 <br /> 05-10-00 1290 3,900 2,400 300 <50 210 31 97 14 <br /> ' 08-21-00 1374 2,900 2,900 320 <5 0 210 27 180 61 <br /> 11-28-00 1507 2,700 3,200 630 <5 0 230 20 230 13 <br /> 02-28-01 1436 2,200 51100 3,000 <5 0 180 22 130 83 <br /> 05-21-01 1436 11,000 4,900 11900 <5 0 150 28 110 <0 5 <br /> ' 08-16-01 1493 3,300 81800 750 <5 0 160 2.3 180 58 <br /> 11-14-01 1603 3,000 6,900 840 <10 190 27 230 so <br /> 02-13-02 1525 4,500 7,700 930 <50 200 27 200 12 <br /> 05-16-02 1532 7,300 8,100 <2,500 <10 130 17 160 38 <br /> 09-30-02 1618 NS NS NS NS NS NS NS NS <br /> ' 12-02-02 1686 NS NS NS NS NS NS NS NS <br /> 02-21-03 1618 NS NS NS NS NS NS NS NS <br /> r <br /> Advanced GeoEnviroamental,Inc <br /> - <br />