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110 2nd Ave South,#D7, Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 64h //www mcLam bell com E-mail main@mccampbell com <br /> I <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> I <br /> Date 10122/01-10123101 Extraction NIA Matrix Soil <br /> Concentration ug/kg %Recovery <br /> Compound Amount RPD <br /> (Sample MS MSD Spiked MS MSD <br /> fSampielD 102301 Instrument GC-10 <br /> Surrogate NO 990 980 10000 99 98 10 <br /> tert-Amyl Methyl Ether NO 615 62 5 5000 123 125 16 <br /> Methyl tert-Butyl Ether NO 540 550 5000 108 110 1 8 <br /> Ethyl tert-Butyl Ether NO 600 615 5000 120 123 25 <br /> Di-isopropyl Ether NO 535 550 5000 j 107 110 28 <br />' Toluene NO 520 545 5000 104 109 4 7 <br /> Benzene NO 470 485 6000 94 97 3 1 <br /> Chlorobenzene NO 480 495 5000 96 99 31 <br /> Trichloroethane NO 39 5 410 5000 79 82 37 <br /> 1,1-Dichloroethene NO 61 5 555 5000 123 111 103 <br /> 1 <br /> 1 <br /> (Ms—sample) <br /> 14 Re covery= m-oundp+ked 300 <br /> ALS—MSA) <br /> RPD= 2100 <br /> (,LLS+MSD) <br /> RPD means Relative Percent DCVlat'On <br />