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Enviro Chem, Inc <br /> 1214 E. Lexington Avenue, Pomona, CA 91766 Tel(909)590-5905 Fax 009)590-5907 <br /> Gas/BTEX QC <br /> Date Analyzed: 6114-1512004 i Units: rnq/Kq(PPM) <br /> Matrix: .SOI <br /> Matrix Spike (MS)/Matrix Spike Duplicate (MSD) <br /> Spiked Sample Lab LD.: 040511-40 <br /> Analyte S.R. spk conc MS %REC MSD %REC %RPD P.CP%REC ACP%RPD <br /> Gasoline 0.000 0.500 0.353 71% 0.421 84% 18% 75-125 <20% <br /> Benzene 0.000 0.050 0.038 76% 0.038 77% 1% 75-125 <20% <br /> Toluene 0.000 0.050 0.045 90% 0.050 101% 11% 75-125 <20% <br /> Eth (benzene 0.000 0.050 0.049 97% 0.050 99% 2% 75-125 <20% <br /> LCS STD RECOVERY: <br /> Analyte J spk conc I LCS I % REG ACP <br /> ,Gasoline 0.500 0.387 77% 75-125 <br /> Benzene 0.050 0.041 81% 75-125 <br /> Toluene 0.050 0.052 105% 75-125 <br /> Ethylbenzene 0.050 0.051 102% 75-125 <br /> Surrogate Recovery RCP%REC MB %REC %REC %REC %REC %REC %REC %REC <br /> Sample I.D. 0611-47 0611-48 0614-9 1 0614-11 1 0614-12 0614-13_1 0614-15 <br /> BFB 70-130 96% 91% 90% 82% 1 91% 1 93% 96% 91% <br /> Surrogate Recovery ACP%REC %REC %REC %REC %REC %REC %REC %REC %REC <br /> Sample I.D. 0614-16 0614-17 0614-19 0614-20 0614-22 0614-23 0614-24 0614-25 <br /> BFB 70-130 92% 91% 89% 92% 93% 75% 84% 75% <br /> Surrogate Recovery ACP%REC %REC %REC %REC %REC %REC <br /> Sample I.D. 0614-26 0614-27 0614-28 0614-31 0614-32 <br /> BFB 70-130 91% 79% 90% 91% 92% <br /> S.R. = Sample Result * = Surrogate fail due to matrix interference (If marked) <br /> spk conc= Spike Concentration Note: LCS, MS, MSD are In control therefore results are in control. <br /> %REC = Percent Recovery <br /> ACP %RPD =Acceptable Percent RPD Range <br /> ACP %REC = Acceptable Percent Recovery Range <br /> Analyzed and Reviewed By: <br /> Final Reviewer: <br />