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' 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC 'T'elephone 925-798-1620 Fax 925-798-1622 <br /> htt2//www mcgm=bell com E-mail mam@mecampbell corn <br /> tQC REPORT <br /> VOCs (EPA 824018260) <br />' Date 11115/99-11/16/99 Matnx Water <br /> Extraction N/A <br /> r <br />' Concentration ug/L %Recovery <br /> Compound Amount RPD <br />' Sample MS MSD Spiked MS MSD <br /> I <br /> SamplelD 19288 Instrument; GC-4 <br />' tret-Amyl Methyl Ether 00 870 870 10000 87 87 00 <br /> Methyl fret-Butyl Ether 00 930 860 10000 93 86 78 <br />' Ethyl tret-Butyl Ether 00 96 0 880 10000 96 88 87 <br /> Di-isopropyl Ether 00 900 820 10000 90 82 93 <br /> I <br /> I <br /> I <br /> I <br /> 96 Re covery (MS-Sample) <br /> = Amoundprked i00 <br /> (I MSb�RPn- MS— 21Q0 <br /> (MS+MSD) <br /> RPD means Reiat:ve Percent Deviation <br />