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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> WEMCCAMPBELL ANALYTICAL INC "Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell coin E-mail mam@mccampbell com <br /> QC REPORT <br /> VOCsEPA 8240/8264 <br /> t ) <br /> IDate 07105100-07106100 Matnx Water <br /> Extraction NIA <br /> Concentration uglL %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 71600 Instrument GC-4 <br /> Surrogate 0 000 970 940 10000 97 94 31 <br /> tert-Amyl Methyl Ether 0 000 1110 1090 10000 111 109 is <br /> Methyl tert-Butyl Ether 0 000 1230 1230 10000 123 123 00 <br /> Ethyl tert-Butt'! Ether 0 000 1280 1270 10000 128 127 08 <br /> Dl-isopropyl Ether 0 000 1110 1090 100 00 111 109 18 <br /> I <br /> li <br /> I <br /> I <br /> I <br /> 1 <br /> I <br /> 1 <br /> I <br /> MS-Sample <br /> 3v Re covery= rlmoundpiked l00 <br /> M <br /> RPD=(MS-MSD) 2100 <br /> MS+MSD) <br /> RPD means Relative Percent Deviation <br />