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��,) • • <br /> s <br /> LABORATORY <br /> QUALITY ASSURANCE REPORT <br /> QC Batch M 643 Lab Project M 9010601 <br /> Sample Result <br /> ID Compound (mg/kg) <br /> MB TPH/Gas ND <br /> MB MTBE ND <br /> MB Benzene ND <br /> MB Toluene ND <br /> MB Ethyl Benzene ND <br /> MB Xylenes ND <br /> Sample Result Spike % <br /> Sample # ID Compound (mg/kg) Level Recv. <br /> 2835 CMS TPH/Gas NS <br /> CMS Benzene 0.0161 0.0191 84.3 <br /> CMS Toluene 0.0166 0.0191 86.9 <br /> CMS Ethyl Benzene 0.0166 0.0191 86.9 <br /> CMS Xylenes 0.0476 0.0574 82.9 <br /> Sample Result Spike % <br /> Sample # ID Compound (mg/kg) Level Recv. RPD <br /> 2835 CMSD TPH/Gas NS <br /> CMSD Benzene 0.0163 0.0191 85.3 1.2 <br /> CMSD Toluene 0.0173 0.0191 90.6 4.1 <br /> CMSD Ethyl Benzene 0.0180 0.0191 94.2 8.1 <br /> CMSD Xylenes 0.0512 0.0574 89.2 7.3 <br /> MB= Method Blank; LCS =Laboratory Control Sample; CMS=Client Matrix Spike; CMSD=Client Matrix Spike Duplicate <br /> NS= Not Spiked; OR=Over Calibration Range <br /> Page 20 of 21 <br /> CA Lab Accreditation#: 2118/ 1-2303 <br />