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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell com <br /> QC REPORT - <br /> VOCs (EPA 8240/8260) <br /> Date 05/04/02 Extraction EPA 5030 Matrix Water <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD-50402 Instrument - <br /> GC--4-Surrogate ND 1020 1030 100 00 102 103 1 0 ' <br /> tert-Amyl Methyl Ether ND 100 100 1000 100 100 00 <br /> Methyl tert-Butyl Ether ND 100 100 1000 100 100 00 <br /> Ethyl tert-Butyl Ether ND 100 110 1000 100 110 95 <br /> Di-isopropyl Ether ND 100 110 1000 100 110 9 5 <br /> i <br /> �j <br /> {MS—Sar��ple} <br /> %Re covery= AmounPSpiked 100 <br /> RPD= 2100 <br /> (MS+MSD) <br /> RPD means Relative Percent Deviation <br />