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' 110 2nd Ave South,#D7,Pacheco, CA 94553-5560 <br /> WEMCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httD l/www mccamt3hell corn E-mail matn@mccamobell cam <br /> • QC REPORT <br />' VOCs (EPA 824018280) <br /> 1 <br /> Date 12/07/01 Extraction EPA 5030 Matnx Water <br />' e Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD <br /> Spiked Sample MSD <br />' Sampiel120701 Instrument' GC-4 <br /> Surrogate ND 1010 990 10000 101 99 I 20 j <br />' Cert-Amyl Methyl Ether ND 99 100 1000 99 100 10 <br /> Methyl tert-Butyl Ether NO 94 95 1000 94 95 1 1 1 <br />' Ethyl tert-Butyl Ether NO 102 104 1000 102 104 19 <br /> Di-isopropyl Ether NO 97 100 1000 97 100 30 <br /> Surrogate NO 1010 990 ! 10000 101 99 20 <br /> Toluene NO 100 107 1000 100 107 i 68 <br /> Benzene NO 104 105 1000 104 105 1 0 <br /> Chlorobenzene NO 103 104 1000 103 104 1 0 <br /> Trichloroethene NO 8 4 8 4 1000 84 84 0 0 <br /> 1 1-❑ichloroethene NO 10 3 105 1000 103 105 ! 1 9 I <br /> 1 <br /> 1 <br /> 1 <br /> • ( <br />' %Re covery= MS—S—ple) ]DO <br /> AmowaSprked <br /> RPO= 2140 <br />' <br /> (MgtA-ED) <br /> RPD means Rekauve Percent Dematton <br />