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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> MCCA eBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccamphell cam E-mail main@mccampbell cam <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 02/28/02 Extraction EPA 5030 Matrix Water <br /> E <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SampleiD 22802 Instrument GC-10 <br /> Surrogate ND 890 <br /> 950 10000 89 95 65 <br /> tert-Amyl Methyl Ether ND 99 98 1000 99 98 10 <br /> Methyl tert-Butyl Ether ND 98 96 1000 98 96 21 <br /> Ethyi tent-Butyl Ether ND 104 102 1000 1 104 102 1 9 <br /> Dwsopropyl Ether ND 100 99 100o 100 99 10 <br /> Toluene ND 101 103 1000 101 103 20 <br /> Benzene ND 100 101 1000 100 101 1 0 <br /> I Chiorobenzene ND 103 105 1000 103 105 1 9 <br /> Tnchloroethene ND 91 91 1000 91 91 00 <br /> 1,1-Dlchloroethene ND 105 107 1000 105 107 1 9 <br /> (1 LS—Sample <br /> %Recovery= 100 <br /> An o-aptXed <br /> RPD—(AGS—AtiSD) 2100 <br /> (A&+AZD) <br /> RPD means Relahve Percent Dmaathnn <br />