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i110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell cam E-mail main@mccampbell com <br /> i <br /> i QC REPORT <br /> VOCs (EPA 824018260) <br /> I <br /> i Date 08123101-08124101 Extraction NIA Matrix Water <br /> Concentration ug/l- %Recovery <br /> Compound I Amount RPD <br /> Sample MS MSD <br /> I Spiked MS MSD — <br /> SampleiD 82401 Instrument GC-10 <br /> iSurrogate -- - - NO 1020 102 0 10000 I 1022 102 00 <br /> tert-Amyl Methyl Ether NO 101 97 1000 101 97 4 0 <br /> i Methyl tert-Butyl Ether NO 100 99 1000 100 99 1 0 <br /> Ethyl tert-Butyl Ether NO 92 92 1000 92 92 00 <br /> DI-Isopropyl Ether NO 93 93 1000 93 93 00 <br /> iToluene NO 98 99 1000 98 99 10 <br /> Benzene NO 9 8 9 7 1000 98 97 1 0 <br /> Chlorobenzene NO 9 8 9 8 I 1000 98 98 00 <br /> Trichloroethane NO 8 2 8 0 1000 82 80 25 <br /> i1,1-Dlchloroethene NO 9 8 9 6 1000 98 96 2 1 <br /> i <br /> i <br /> i <br /> i <br /> I <br /> i { <br /> %Re covery= .4m--Spiked MS—Sample} 100 <br /> i <br /> (A&—AED)RPD= 2100 <br /> (MS+MSD <br /> RPD means Relative Percent Deviation <br />