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' 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> 64 McCAMPBELL ANALYTICAL NC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//W-WW micamobell com &mai] main@mecamobell corn <br /> QC REPORT <br /> VOCs (EPA 8240/8260) <br /> Date 11/15/01 Extraction N/A Matrix Water <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> Samplell7 111501 instrument GC-10 <br /> Surrogate ND 1000 990 10000 100 99 10 <br /> tent-Amyl Methyl Ether ND 102 96 1000 102 96 � 61 <br /> Methyl tett-Butyl Ether ND 97 94 1000 97 94 3 1 <br /> Ethyl tert-Butyl Ether ND 112 105 1000 112 105 65 <br /> Di-isopropyl Ether ND 108 <br /> 104 1000 108 104 38 <br /> Surrogate ND 1000 990 10000 100 99 10 <br /> tent-Amyl Methyl Ether ND 102 96 1000 102 96 6 1 <br /> Methyl tert-Butyl Ether ND 97 94 1000 97 94 31 <br /> Ethyl tert-Butyl Ether ND 112 105 1000 112 105 65 <br /> Di-isopropyl Ether ND 108 104 1000 108 104 3 8 <br /> I <br /> M3'-5umplc� <br /> %Recovery= 100 <br /> AmounrSpiked <br /> MS—MSD <br /> RPD= 2100 <br /> A&+A-BD) <br /> RPA means Relative Percent Deviahon <br />