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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 l/www mccampbell com E-mail main@mccampbell com <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 40602 Instrument GC-4 <br /> Surrogate ND 1100 1090 10000 110 109 09 <br /> tert-Amyl Methyl Ether ND 109 103 1000 109 103 5 7 <br /> Methyl tert-Butyl Ether ND 108 105 l 1000 108 105 2 8 <br /> ' Ethyl tert-Butyl Ether ND 106 107 1000 106 107 09 <br /> Dl-isopropyl Ether ND 109 106 1000 109 106 2 8 <br /> 1 <br /> MS—Sannple) <br /> Re covery= A ,0U nSP&ed 100 <br /> MS—'NSD <br /> ' RPD= 2100 <br /> MS+MSD <br /> APD means Relative Percent Deviation <br />