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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 mccam bell corn E-mail maln@mccampbell corn <br /> QC REPORT <br /> ' VOCs (EPA 8240/8260) <br /> ' Date 04/11/01-04/12/01 Matrix Water <br /> Extraction NIA <br /> 1I <br /> Concentration uglL %Recovery ' <br /> Compound Amount RPD I <br /> Sample MS MSD Spiked MS MSD <br /> SampieiD 41101 Instrument GC-10 <br /> ' Surrogate 0 000 1010 1080 10000 101 108 67 <br /> tent-Amyl Methyl Ether 0 000 740 760 10000 74 76 i 27 <br /> Methyl tert-Butyl Ether 0 000 790 750 10000 79 75 I 52 <br /> Ethyl tert Butyl Ether 0 000 840 750 10000 84 75 113 <br /> Di-isopropyl Ether i 000o 990 890 10000 99 89 106 <br /> ' Toluene 0 000 1050 900 i 10000 105 90 154 <br /> Benzene I 0 000 1100 96 0 10000 110 96 136 { <br /> ' Chlorobenzene 000o 1030 910 10000 103 91 124 i <br /> Tnchloroethane 0 000 85 0 740 10000 85 74 138 <br /> 10-Dlchloroethene 0 000 870 740 100 00 87 74 16 1 <br /> r <br /> (MS—Sample <br /> ' %Recovery- AmnuntSpikd loo <br /> (MS—MSD <br /> RPDA zloo <br /> ' (MS+MSD) <br /> RPD means Relative Percent Devmwin <br />