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i <br /> jl f <br /> TM a` <br /> Alpha Analytical Laboratories Inc. 860 Waugh Lane, H-1, Ukiah, California 95482 <br /> (707)468-0401 <br /> February 4, 1999 Page 1 <br /> Robert Marty <br /> Advanced Geo Environmental <br /> 4005 N. Wilson Way <br /> i Stockton, CA 95205 <br /> j' Quality Control Report <br /> ii <br /> Batch Number: 99-0126-015 <br /> Method Matrix Duplicate <br /> Blank Spike Spike <br /> Recovery Recovery Recovery RPD <br /> 0 0 0 <br /> o <br /> Matrix: Soil <br /> OU-5METALS-S Metals <br /> Cadmium ND 97 . 8 95 .4 2 . 48 <br /> Chromium ND 96 .4 93 . 9 2 . 63 <br />! Nickel ND 101 97 . 6 3 .42 <br /> Lead ND99 . 1 94 . 0 5 . 28 <br /> Zinc ND 106 105 . 948 <br /> OU-TPGBTXE-S TPH Gasoline W/BTXE <br /> Benzene ND 86 .4 86 . 0 .464 <br /> Benzene ND 105 105 0 . 00 <br /> Ethylbenzene ND 102 92 .4 9 . 88 j <br /> Ethylbenzene ND 104 105 • 957 <br /> Toluene ND 103 86 . 8 17 . 1 t <br /> Toluene ND 108 108 0 . 00 <br /> TPH - Gasoline ND 87 . 1. 90 . 6 3 . 94 <br /> Xylenes ND 110 102 7 . 55 <br /> Xylenes ND 113 113. 0 .00 <br /> VO-EPA8010-5 Halogenated Volatile Organics <br /> Bromodichloromethane ND 109 119 8 . 77 <br /> Bromomethane ND 81 . 9 95 . 7 15 . 5 <br /> Bromoform ND 115 127 9 . 92 <br /> Carbon Tetrachloride ND 118 123 4 . 15 <br /> 2-Chloroethylvinyl ether ND 65 . 6 72 . 2 9 . 58 <br /> Chlorobenzene ND 95 . 3 99 . 0 3 . 81 <br /> Chloroethane ND 92 . 2 94 . 3 2 .25 <br /> (continued on next page) <br /> f <br /> i <br />