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110 2nd Ave South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell com <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> I <br /> Date 06121101-06122101 Extraction EPA 5030 Matrix Water <br />' Concentration ug/L %Recovery <br /> Compound Amount RPD f <br /> Sample MS MSD Spied MS MSD <br />' SamplelQ 62001 Instrument GC-10 <br />' Surrogate ND 1110 11-50 10000 111 115 3 5 <br /> tent-Amyl Methyl Ether ND 98 97 1000 98 97 1 0 <br /> Methyl tert-Butyl Ether ND 11 6 11 4 1000 116 114 1 7 I� <br /> Ethyl tert-Butyl Ether ND 89 88 1000 89 88 1 1 <br /> Di-isopropyl Ether ND 83 91 1000 83 91 92 <br />' Toluene ND 11 6 116 1000 116 116 00 <br /> Benzene ND 106 107 1000 106 107 0 9 �I <br /> Chlorobenzene ND 107 10 7 1000 107 107 0 0 <br /> Trichloroethane ND 82 82 1000 82 82 00 <br /> 1,1-Dlchloroethene ND 95 9 7 1000 95 97 2 1 <br /> I <br /> I <br /> MS—sample <br /> Recovery= DO <br /> AmountSpiked t <br /> MS—MSD <br /> RPD= 2100 <br /> MS+MSD) <br /> RPD means Relative Percent Deviation <br />