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MGCAWBEL.L ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> Tele 925-798-1620 Fax 925-798-1622 <br /> i <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 07/03/99-07/04/99 Matrix WATER <br /> Concentration (ug/kg,ul l Recovery l <br /> Analyte l Sample I Amount RPD 1 <br /> (#13574) MS MSD l Spiked ] MS MSD 1 <br /> ] 1 <br /> l l ] <br /> 11, 1-Dichloroethel 0 202 110 l 100 l 102 110 7 5 1 <br /> ]Trichloroethene l 0 100 113 1 100 1 100 113 12 2 1 <br /> ]EDB l N/A N/A N/A I N/A 1 N/A N/A N/A 1 <br /> lChlorobenzene 1 0 94 104 1 100 l 94 104 10 1 1 <br /> lBenzene 1 0 95 104 1 100 1 95 104 9 0 l <br /> (Toluene i 0 89 102 l 100 ] 89 102 13 6 l <br /> i <br /> 4 Rec (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />