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i <br /> Alpha Scientific Corporation <br /> Environmental Laboratories <br /> • <br /> 01-05-2006 <br /> Client Biophysics Environmental Assessment Lab Job No BE512213 <br />' Project Frontier <br /> Project Site 425 W Larch Rd,Tracy, CA Date Sampled 12-15-2005 <br /> Matrix Water Date Received 12-16-2005 <br /> Batch No 1219-VOBW I Date Analyzed 12-19-2005 <br />' EPA 8264B(BTEX& Oxygenates by GUMS) <br /> Reporting Units: µg/L (ppb) <br />' Lab ID Method BE512213-1 BE512213-2 BE512213-3 BE512213-4 BE512213-5 <br /> MDL <br /> Sample ID Blank MW-1 MW-2 MW-3R MW-9 MW-13 <br />' DF 1 20 1 5 5 1 <br /> Benzene ND ND 3 4 640 ND ND 1 <br />' Toluene ND ND 3 2 375 ND ND 1 <br /> Ethylbenzene ND ND 102 367 ND ND 1 <br /> Total Xylenes ND ND 263 275 ND ND 2 <br />' MTBE ND 2,270 1,510* 2,310 1,710 ND 2 <br /> ETBE ND ND 114 7I ND ND 2 <br /> 1 DIPE ND ND ND ND ND ND 2 <br /> TAME ND ND 46 152 ND ND LOJ TBA ND ND 776 ND ND ND I <br /> Lab ID Method BE512213-6 BE512213-7 BE512213-8 BE512213-9 BE512213-10 <br /> MDL <br />' Sample ID Blank MW-14 MW-15 MW-16 MW-17 MW-18 <br /> DF I I 1 I 1 1 <br /> Benzene ND ND ND ND ND ND I <br />' Toluene ND ND ND ND ND ND 1 <br /> Ethylbenzene ND ND ND ND ND ND I <br />' Total Xylenes ND ND ND ND ND ND 2 <br /> MTBE ND ND ND ND 162 474 2 <br /> ETBE ND ND ND ND ND ND 2 <br />' DIPE ND ND ND ND ND ND 2 <br /> TAME ND ND ND ND ND ND 2 <br />' TBA ND ND ND ND ND ND 10 <br /> MDL=Method Detection Limit, <br /> DF=Dilution Factor(DF x MDL=Reporting Limit for the sample), r <br />' ND Not Detected(at the specified limit) * Obtained from a higher dilution analysis <br /> J=Trace concentration,below reporting limit <br /> 16760 Gridley Road,Cerritos,CA 90703 4 Phone (562)809-8880 Fax (562)809-8801 <br /> 1 <br />