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1 <br /> ' 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 /> ' (>ag/l) <br /> t Sample Sample Depth Ethyl- Xylene <br /> Location Date toT?H`g TPH-d TPH-mo MTBE Benzene , Toluene benzene s <br /> ('screen Water <br /> ' MW-1 01-10-91 2579 1,000 67 91 23 110 <br /> (19-46) 02-27-92 27 32 5,800 33 220 41 180 <br /> 05-28-92 2823 1,200 --- --- 22 48 16 73 <br /> _ 09-16-92 2825 4,300 - -- - 110 330 100 400 <br /> 11-05-92 2844 370 --- --- - 83 29 12 63 <br /> ' 02-11-93 2880 3,100 --- j 41 110 49 230 i <br /> 02-08-94 2838 1,900 68 120 130 460 <br /> 05-04-94 2764 3,900 --- --- --- 140 230 230 870 <br /> 08-05-94 2728 2,400 --- --- - 90 240 120 680 <br /> ' 12-20-94 2686 3,000 --- --- --- 63 80 150 140 <br /> 05-11-95 2782 560 13 37 25 140 <br /> 10-05-95 2416 280 63 18 13 70 <br /> 01-30-96 2320 490 100 <250 --- 10 30 69 120 <br /> 02-08-96 2345 170 <50 <250 --- 21 97 39 46 <br /> ' 05-07-96 21 28 2,000 490 180 97 25 25 <0 5 570 <br /> 08-07-96 2080 330 320 <250 <50 23 83 67 84 <br /> 11-05-96 2146 1,300 220 <250 <50 16 60 41 390 <br /> 02-04-97 1633 850 300 <250 <50 97 25 71 230 <br /> 05-06-97 1872 340 200 <250 <5 0 is 054 18 18 <br /> _08-05-97 1852 65 <50 <250 <50 <05 <05 66 47 <br /> l 1-04-97 1936 <50 90 <250 <50 <05 <0 5 <0 5 080 <br /> 02-04-98 1576 450 200 <250 <5 0 40 60 17 120 <br /> 05-07-98 1432 <50 66 <250 <5 0 <05 <0 5 095 060 <br /> ' _08-12-98 1474 <50 <50 <250 -- <0 5 <0 5 <05 <0 5 <br /> 11-03-98 18 52 <50 65 <250 <50 <05 053 <0 5 <0 5 <br /> 02-02-99 1578 <50 <50 <250 <5 0 <05 058 1 3 16 <br /> 05-05-99 1495 350 <50 <250 <5 0 19 54 14 65 <br /> ' 08-11-99 1533 52 <50 <250 <50 053 19 1 5 61 <br /> wl 1-09-99 1662 <50 <50 <250 <50 <05 <0 5 <0 5 <0 5 <br /> 02-08-00 1620 <50 <50 <250 <50 <05 <0 5 089 20 <br /> 05-09-00 1460 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 08-21-00 - <50 <50 <250 <50 <0 5 <0 5 <0 5 <0 5 <br /> ' <br /> 11-28-00 16 41 <50 <50 <250 <5 0 <05 <0 5 12 <0 5 <br /> 02-28-01 1592 <50 <50 <250 <5 0 <0 5 <05 057 054 <br /> 05-21-01 1578 <50 <50 <250 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> __08-16-01 1636 <50 <50 <250 <50 <05 <05 <0 5 <0 5 <br /> 11-14-01 1754 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 02-13-02 1683 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> +� 05-16-02 1 1682 1 <50 1 <5 1 <25D <5 0 <0 5 <0 5 <0 5 <0 5 <br /> i <br /> 1! <br /> Advanced GeoEnvironmental,Inc <br />