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I110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> Ihttn//www mecampbell com E-mail main@mccampbell com <br /> QC REPORT <br /> VOCs (EPA 824018260) <br />' Date 03/01/02 Extraction EPA 5030 Matrix Air <br /> Concentration ug/L %Recovery <br /> Compound <br /> �AmountSample MS MSDiked MS MSD <br /> SamalelD_ 30102 instrument GC-10 <br /> Surrogate ND 1000 980 10000 100 98 2 0 <br /> tert-Amyl Methyl Ether ND 108 108 1000 108 108 00 <br /> Methyl tert-Butyl Ether ND 109 108 1000 109 108 09 <br /> Ethyl tert-Butyl Ether ND 114 11 4 1000 114 114 00 <br />' Di-isopropyl Ether ND 110 11 0 1000 110 110 00 <br /> Toluene ND 104 105 1000 104 105 1 0 <br />' Benzene ND 106 107 1000 106 107 09 <br /> Chlorobenzene ND 107 107 1000 107 107 00 <br /> Trichloroethene ND 9 6 105 1000 96 105 90 <br />' 1,1-Dichloroethene ND 11 2 11 3 1000 112 113 11 0 9 <br /> 1 <br /> 1 <br /> (AE—Sample) <br /> %Re cavery= AnrouwSprked 100 <br />' <br /> APD-(MS—MSD) <br /> 2100 <br /> {MS+MSD3 <br /> RPD means Relative Percent Devrathon <br />