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TABLE 3 - f ANALYTICAL RESULTS OF HISTORICAL GROUND WATER SAMPLES Chase Chevrolet - Madison 5 _ r 423 North Madison Street, Stockton, California Sample r Sample Depth to TPH as TPH as TPH as - - -,Ethyl.! ��- _ Location MTBE Benzene Toluene __1J Xylenes Date Water Gasoline Diesel Motor Oil benzene screen _ xF MW-1 1-10-91 25 78 1,000 --- --- --- 67 91 23 110 (19-46) 2-27-92 2732 5,800 --- --- --- 33 220 41 180 5-28-92 28 23 1,200 --- --- --- 22 48 16 73 9-16-92 28 25 4,300 --- --- --- 110 330 100 400 11-5-92 2844 370 --- --- --- 8.3 29 12 63 2-11-93 2880 3,100 --- --- --- 41 110 49 230 - 2-8-94 2838 1,900 --- --- --- 68 120 130 460 5-4-94 2764 3,900 --- --- --- 140 230 230 870 8-5-94 2728 2,400 --- --- --- 90 - 240 120 680 12-20-94 26 86 3,000 --- --- --- 63 80 150 660 5-11-95 27 82 560 --- --- --- 13 37 25 140 F 10-5-95 24 16 280 --- --- --- 6 3 18 13 70 1-30-96 2320 490 100 <250 --- 10 30 6 9 120 2-8-96 2345 170 <50 <250 --- 2 1 9 7 3 9 46 5-7-96 2128 2,000 490 180 97 25 25 <0 5 570 8-7-96 2080 330 320 <250 <5 0 2 3 83 6 7 84 l 11-5-96 2146 1,300 220 <250 <5 0 16 60 41 390 2-4-97 1633 850 300 <250 <5 0 9 7 25 71 230 tj 5-6-97 1872 340 200 <250 <5 0 1 5 0 54 18 18 8-5-97 18 52 65 <50 <250 <5 0 <0 5 <0 5 6 6 4 7 11-4-97 1936 <50 90 <250 <5 0 <0 5 <0 5 <0 5 0 80 2-4-98 15 76 450 200 <250 <5 0 4 0 6 0 17 120 5-7-98 1432 <50 66 <250 -<5 0 <0 5 <0 5 095 0 60 8-12-98 1474 <50 <50 <250 --- <0 5 <0 5 <0 5 <0 5 11-3-98 1852 <50 - 65 <250 <5 0 <0 5 053 <0 5 <0 5 2-2-99 15 78 <50 <50 <250 <5 0 <0 5 0 58 1.3 1 6 5-5-99 1495 350 <50 <250 <5 0 19 54 14 65 x 8-11-99 15 33 52 <50 <250 <5 0 0 53 19 15 6 1 11-9-99 16 62 <50 <50 <250 <5 0 <0 5 <0 5 <0 5 <0 5 _ 2-8-00___]----16 20 <50 <50 I <250 1 <5 0 1 <0 5 1 <0 5 1 0 89 1 2 0 r Advanced GeoEnwonmental,Inc t