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' 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL IMC Telephone 925-798-1620 Fax 925-798-1622 <br />' hay//www mecampbell corn E-rnail rnain@rnccampbelI corn <br /> QC REPORT <br /> 1 <br /> VOCs (EPA 824018260) <br />' Date 02/21/02 Extraction EPA 5030 Matnx Water <br /> Concentration ugA- %Recovery <br /> Compound Amount RPD <br />' Sample MS MSD Spiked MS MSD <br /> Sa plelD 21102 Instrument GC-10 <br /> ISurrogate ND 1000 980 10000 100 98 20 <br /> tert-Amyl Methyl Ether ND 95 94 1000 95 94 1 1 <br /> Methyl tett-Butyl Ether ND 93 921"0') <br /> 21000 93 92 1 1 <br /> Ethyl tent-Butyl Ether ND 99 99 1000 99 99 00 <br /> I Di-isopropyl Ether ND 98 98 1000 98 98 00 <br /> f Toluene ND 105 105 1000 105 10511 ❑0 <br /> Benzene ND 100 103 1000 100 103 3 0 <br /> Chlorobenzene ND 103 105 1000 103 105 1 9 <br /> Trichloroethene ND 9 1 9 3 1000 91 93 2 2 <br /> I1,1-Dichloroethene ND 11 1 11 3 1-10 00 111 113 1 $ <br /> AtiS—Sample <br /> %Ile cavery= AmounlSpiked i00 <br /> ACLS—Ad5D) <br /> RPDA 2100 <br /> A4S+A4SSD) <br /> RPD means Relative Percent Deviation <br />