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Enviro-Chem, Inc. <br /> 1214 E. Lexington Avenue, Pomona, CA 91766 Tel (909)590-5905 Fax (909)590-5907 <br /> 8260B QA/QC Report <br /> Date Analyzed: 6/23/2021 Matrix: SolidlSolllLiQuld <br /> Machine: D Unit: mglK€i 1PPM1 <br /> Matrix Spike(MS)/Matrix Spike Duplicate (MSD) <br /> Sj2iked Sample Lab I.D.: 210623-6 MS/MSD <br /> Analyte I S.R s k conc MS %RC MSD %RC %RPD ACP %RC ACP RPD <br /> Benzene 0 1 0.050 0.045 90% 0.046 92% 2% 75-125 0-20 <br /> Chlorobenzene 0 0.050 0.045 90% 0.047 94% 4% 75-125 0-20 <br /> 1,1-Dichloroethene 0 0.050 0.041 82% 0.042 84% 2% 75-125 0-20 <br /> Toluene 0 0.050 0.046 92% 0.048 96% 4% 75-125 0-20 <br /> Trichloroethene r-t;=; 0 0.050 0.043 86% 0.044 88% 2% 75-125 0-20 <br /> Lab Control Spike (LCS): <br /> _ Analyte spk conc LCS %RC ACP %RC <br /> Benzene 0.050 0.048 96% 75-125 <br /> Chlorobenzene 0.050 0.047 94% 75-125 <br /> Chloroform 0.050 0.050 100% 75-125 <br /> 1,1-Dichlorothene 0.050 0.041 82% 75-125 <br /> Eth (benzene 0.050 0.050 100% 75-125 <br /> o-X lene 0.050 0.051 102% 75-125 <br /> m, -X lene 0.100 0.103 103% 75-125 <br /> Toluene 0.050 0.049 98% 75-125 <br /> 1,1,1-Trichloroethane 0.050 0.049 98% 75-125 <br /> Trichloroethene (TCE) 0.050 0.045 90% I 75-125 <br /> Surro ate Recovery spk conc ACP %RC MB%RC o %RC %RC %RC %RC I- %RC <br /> Sam le I.D. M-13LK t2106273-6 210623-7 210623-8 210623-9-7210623-10,111210623-35 <br /> Dibromofluoromethane 50.'1 70-130 103% 106% 109% 108% 106% 105% <br /> Toluene-d8 50.0 70-130 103% 106% 102% 103% 103% 102% 102% <br /> 4-Bromofluorobenzene 50.0 70-130 94% ' 95% j 94% 98% 99% 9905", 97% <br /> Surrogate Recovei s k conc ACP %RC %RC %RC /.RC %RC %RC %RC %RC <br /> Sample I.D. 1 1210623-361210623-421210623-43; <br /> Dibromofluoromethane 50.0 70-130 106% 103% 105% <br /> Toluene-d8 50.0 70-130 101% 101% 102% <br /> 4-Bromofluorobenzene 50.0 70-130 98% 98% 97% <br /> Surrogate Recovery s k conc ACP %RC %RC I %RC %RC %RC %RC ',RC %RC <br /> Sample I.D. <br /> Dibromofluoromethane 50.0 70-130 <br /> Toluene-d8 50.0 70-130 <br /> 4-Bromofluorobenzene 50,0 70-130 j <br /> .= Surrogate fail due to matrix interference, LCS, MS, MSD are in control therefore the analysis is in control. <br /> S.R. = Sample Results %RC=Percent Recovery <br /> spk conc=Spike Concentration ACP%RC=Accepted Percent Recovery <br /> MS= Matrix Spike MSD =Matrix Spike Duplicate <br /> Analyzed/Reviewed By: -�Z_ <br /> Final Reviewer: <br />