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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 /> http//www mccamphell coin E-mail main@mccampbell com <br /> • QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 07/11/01-07/12/01 Extraction EPA 5030 Matrix Water <br />' Concentration ug/L %Recovery <br /> Compound RPD <br /> � Sample MS MSD � Spiked MS MSD 'F <br />' SamolelD 70601 Instrument GC-10 <br /> Surrogate I ND 1000 1010 10000 100 101 1 0 <br />' tert-Amyl Methyl Ether ND 95 95 I 10 00 95 95 0 0 <br /> I <br /> Methyl tent-Butyl Ether I ND 95 94 f 1000 95 94 1 1 <br />' Ethyl tert-Butyl Ether ND 100 101 1000 100 101 lo <br /> Di-isopropyl Ether ND 108 109 1000 108 109 F 09 <br />' Toluene ND 98 100 1000 98 100 20 <br /> Benzene ND 104 106 10 00 104 106 II 1 9 <br /> • I100Chlorobenzene ND 107 10 7 1000 107 107 0 0 <br /> 02 4 <br /> Trichloroethane � ND 8 3 85 83 85 <br /> 1,1-Dichloroethene I ND 11 8 12 4 ' 1000 118 124 5 0 <br /> 1 -- <br /> 1 <br /> 1 <br /> 1 <br />' <br /> MS—Sample} <br /> V.Re covert'= AmouniSpiked 100 <br /> (MS—MSD} <br /> RPD= 2100 <br />' (MS+MSD) <br /> RPD means Relative Percent Deviation <br />