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Enviro Chem, Inc <br />1214 E. Lexington Avenue, Pomona, <br />CA 91766 Tel (909)590-5905 Fax (909)590-5907 <br />Gas/BTEX QC <br />Date Analyzed: 10/1314/2022 <br />Units: mq/Kq (PPM) <br />Matrix: Soil/Solid/Sludge/Liquid <br />Matrix Spike (MS)/Matrix Spike Duplicate (MSD) <br />Spiked Sample Lab I.D.: 221013-LCS 1/2 <br />Analyte S. R. j spk conc <br />MS %REC MSD %REC %RPD ACP %REC ACP %RPD <br />Gasoline Ranke 0.00 0.500 <br />0.458 92% 0.434 87% 5% 1 75-125 <20% <br />LCS STD RECOVERY: <br />Analyte s k conc LCS <br />% REC ACP <br />Gasoline Range 0.500 1 0.453 <br />910/6' 75-125 <br />Surro ate Recovery ACP %REC %REC I <br />%REC I %REC I %REC I %REC I %REC I %REC %REC <br />Sample I.D._ I MB <br />221007-1 221006-1 221012-3 1 221012-4 221012-5 1 2210 . 1 �2- 67 221012-7 <br />BFB J 70-130 1 122% <br />104% 120% 122% 121% 121% 1 125% 129% <br />Surrogate Recovery ACP %REC %REC I <br />%REC I %REC I %REC I %REC I %REC I %REC I %REC <br />Sample I.D. 1 1 221012-8 <br />221012-9 221012-10 <br />BFB 70-130 112% <br />120% 119% <br />Surrogate Recovery ACP %REC %REC <br />%REC %REC %REC %REC <br />Sample I.D. I <br />BFB 70-130 <br />* = Surrogate fail due to matrix interference (If marked) <br />S.R. = Sample Result <br />Note: LCS, MS, MSD are in control therefore results are in control. <br />spk conc = Spike Concentration <br />%REC = Percent Recovery <br />ACP %RPD = Acceptable Percent RPD Range <br />ACP %REC = Acceptable Percent Recovery <br />Range <br />Analyzed and Reviewed By: k;l <br />y <br />Final Reviewer: <br />