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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 Hwww mccamnbell com E-mail main@mccampbell cam <br /> ' QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 04/14/02 Extraction EPA 5030 Matrix Water <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 41402 Instrument GC4 <br /> Surrogate ND 1060 101 0 10000 106 101 48 <br /> tert-Amyl Methyl Ether ND 92 93 1000 92 93 1 1 <br /> Methyl tert-Butyl Ether ND 94 99 1000 94 99 52 <br /> Ethyl tert-Butyl Ether ND 95 98 1000 95 98 31 <br /> Di-isopropyl Ether ND 98 97 1000 98 97 10 <br /> ' Toluene ND 97 95 1000 97 95 21 <br /> Benzene ND 93 9 7 1000 93 97 42 <br /> Chlorobenzene ND 92 9 6 1000 92 96 1 43 <br /> Tnchloroethene ND 97 104 1000 97 104 7 0 <br /> ' 1,1-Dichloroethene ND 98 10 3 1000 98 103 50 <br /> I 1 <br /> MS—Sample) <br /> Re"very= Anrounl5p+ked 100 <br /> MS'MSD� <br /> ' RPD= 2140 <br /> (MS+MSD <br /> RPD means Relative Percent Deviation <br />