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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> 64 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hnp Hwww,mccamnbell cam E-mail main@mccampbell com <br /> QC REPORT <br />' VOCs (EPA 824018260) <br /> Date 12107199-12108199 Matrix Water <br /> Extraction NIA <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 12799 Instrument GC-4 <br /> tret-Amyl Methyl Ether 0 000 880 890 10000 88 89 1 1 <br />' Methyl tret-Butyl Ether 0 000 870 1020 10000 87 102 I 159 <br /> Ethyl tret-Butyl Ether 0 000 930 1070 10000 93 107 14 0 <br />' Di-isopropyl Ether 0 000 940 1100 10000 94 110 157 <br /> Tolune 0 000 940 990 10000 94 99 52 <br />' Benzene 0 000 1010 980 10000 101 98 3 0 <br /> Chlorobenzene 0 000 990 990 10000 99 99 0 0 <br />' Tnchloroethane 0 000 980 96 0 10000 98 96 2 1 <br /> I 1,1-Dichloroethene 0 000 920 85 0 100 00 92 85 7 9 <br /> I <br /> 1 <br />' <br /> (MS—Sample) <br /> io Re covery= ,lmounrSp�ked ]Go <br /> (MS—MSD <br /> RPD_ 2 100 <br />' (MS+MSD) <br /> RPD means Relative Percent Deviation <br />