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*5 <br /> HISTORICAL GROUNDWATER ANALYTICAL DATA <br /> Cahn Property <br /> Stockton,California <br /> Sample Date of TAH as Aromatbic Volatile Or anics Seven Fuel Oxygenates <br /> ID Sampling Gasoline Benzene Toluene Ethyl- Total RIPE ETBE MTBE TAME TBA Ethanol Methanol <br /> Benzene Xylenes <br /> lL 1L !L IL 1L IL lL lL !L IL) 1L 1L <br /> MW 6 12/14/00 170 000 10,000 9200 4,500 23 000 <100 <100 <100 <100 <1,000 <br /> 6119101 160 000 4,300 12 000 5 400 35 000 <100 <100 <100 <100 <1,000 <br /> 9125/01 140 000 7 500 6 100 4 100 23 000 <100 <100 <100 <100 <1 000 <br /> 12/17/01 100 000 8 500 2 900 4,000 21 000 <200 <200 <200 <200 <2,000 <br /> 414102 210 000 7 300 8200 5 300 34 000 <200 <200 <200 <200 <2,000 <br /> 6/25/02 100,000 12 000 6,400 5,100 27 000 <200 <200 <200 <200 <2 000 <br /> 9/024/02 140,000 12 000 1 600 5,100 22 000 <200 <200 <200 <200 <2,000 <br /> 1214102 150 000 13 000 920 4 700 20 000 <400 <400 <400 <400 <4 000 <br /> 3/3103 180 000 15 000 570 5,400 21 000 <200 <200 <200 <200 <2,000 <br /> 6111103 130 000 12 000 310 4 500 16 000 <200 <200 <200 <200 <2,000 <br /> 9/9103 150 000 13 000 500 5 000 14,000 <200 <200 <200 <200 <2,000 <br /> 1213103 110 000 14,000 500 4 900 15 000 <200 <200 <200 <200 <2 000 <br /> 3126104 60 000 11,000 180 3 600 12,000 <200 <200 <200 <200 <2,000 <2,000 <20,000 <br /> 6122104 73 000 12 000 200 4 000 11 000 <500 -- --- -- - - -_. <br /> 9123/04 66 000 8 800 230 4 500 12 000 <500 -- - - <br /> 1217104 52 000 9 300 170 4 000 9 700 <500 -- -- - - <br /> 314105 55 000 11 000 180 4,800 10 000 <250 -- - -- - - - <br /> 6130105 70 000 9 700 690 4200 9 900 <0 50 <0 50 <0 50 <0 50 160 <br /> 9119105 62,000 11,000 810 3,700 10,000 <0 50 <0 50 <0 50 <0 50 <50 - -- <br /> r-- <br /> MW-7 12/14/00 160000 19 210 380 1,800 <20 <20 <20 <20 <200 <br /> 6/19101 630 23 26 77 43 <10 <10 <10 <10 <100 <br /> 9125/01 100 060 <050 <0 50 <050 <20 <20 <2 0 <2 0 <20 <br /> 12117/01 760 17 24 10 53 <10 <10 <10 <10 <100 <br /> 414102 2 600 63 72 6 0 10 <10 <10 <10 <10 <100 <br /> 6125102 990 23 12 35 1 3 <2 0 <20 <2 0 <20 <20 <br /> 9/024/02 2,900 160 33 32 11 <2 0 <20 <2 0 <20 <20 <br /> 12!4102 18 000 370 190 690 2,000 <20 <20 <20 <20 <200 <br /> 313103 13 000 320 56 430 960 <20 <20 <20 <20 <200 <br /> 6/11103 3 600 50 130 46 180 <20 <20 <20 <20 <200 <br /> 919103 6 500 60 45 94 140 <20 <20 <20 <20 <200 <br /> 1213103 35,000 250 81 880 2 900 <4 0 <4 0 <4 0 <4 0 <40 <br /> 3125104 6 700 35 11 130 360 <40 <40 <40 <40 <400 <400 <4 000 <br /> 6122104 15 000 110 50 550 1600 100 -- -- --- --- - - <br /> 9123104 20 000 250 140 810 2600 <40 <40 <40 <40 <40 -- - <br /> 12l1104 19,000 330 140 690 2200 <100 --- --- - --- - - <br /> 314105 6 000 19 120 150 660 <50 -- --- --- --- - - <br /> 6130105 2 700 28 29 57 140 <0 50 <0 50 <0 50 <0 50 <5 0 <br /> 9119105 13,000 190 330 690 1,800 <050 <0 50 <0 50 <0 50 <50 - - <br /> APEX ENVIROTECH INC <br /> THIRD QUARTER 2005 <br /> Page 4 of 9 COH01 001 <br />