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Enviro-Chem, Inc. <br /> 11214 E. Lexington Avenue, Pomona, CA 91766 Tel (909)590-5905 Fax(909)590-5907 <br /> 8260B QA/QC Report <br /> Date Analyzed: 11/20-21/2019 Matrix: Water/Liquid <br /> Machine: B Unit. uglL IPPB( <br /> Matrix Spike(MS)/Matrix Spike Duplicate(MSD) <br /> Spiked Sample Lab I.D.: 191119-40 MS/MSD <br /> Analyte S.R s k conc MS %RC MSD %RC I %RPD ACP %RC ACP RPD <br /> Benzene 0 25.0 21.1 84% 23.0 92% -8% r-7-5-125 0-20 <br /> Chlorobenzene 0 25.0 22.8 91% 25.0 100% 9% 75-125 0-20 <br /> 11-Dichloroethene 0 25.0 20.4 82% 21.2 85% 3% 75-125 0-20 <br /> Toluene 0 25.0 23.1 92% 25.1 100% 8% 75-125 0-20 <br /> Trichloroethene TCE) 0 25.0 20.8 83% 23.4 94% 10% 75-125 0-20 <br /> Lab Control Spike (LCSj: <br /> Analyte s k conc LCS %RC ACP%RC <br /> Benzene 25.0 22.0 88% 75-125 <br /> Chlorobenzene 25.0 23.6 94% 75-125 <br /> Chloroform 25.0 21.1 84% 75-125 <br /> 1,1-Dichloroethene 25.0 19.5 78% 75-125 <br /> Eth (benzene 25.0 24.0 96% 75-125 <br /> o-X lene 25.0 19.8 79% 75-125 <br /> m, -X lene 50.0 48.9 98% 75-125 <br /> Toluene 25.0 23.8 95% 75-125 <br /> 1,1,1-Trichloroethane 25.0 22.1 88% 1 75-125 <br /> Trichloroethene (TCE; 25.0 21.8 87% 1 75-125 <br /> Surrogate Recovery s k conc JACP %RCI MB %RC I %RC %RC I %RC %RC %RC %RC <br /> Sample I.D. M-BLK 1191119-401191119-41 191119-42 191119.43 191119-441191119-45 <br /> Dibromofluoromethane 25.0 70-130 981° 1 90°% 1 971r6 8$% 101-A 92% 98% <br /> Toluene-d8 25.0 70-130 102% 102% 104% '[= 103% 101% 103% <br /> 4-Bromofluorobenzene 25.0 70-130 940% 92% 96% 8311/6 93% 84% 100% <br /> Surro late Recovery s k conc JACP %RC %RC %RC %RC %RC %RC °URC %RC <br /> Sample I.D. 191119-46 191110-471191119-40 191119-49 191719=54 191119-51 191119-52 <br /> Dibromofluoromethane 25.0 1 70-130 1 98% 102% 97% 102% 140'/° 109% 107% <br /> Toluene-d8 25.070-1301 81% $4°!0 81% 80°la 81°l0 103% 105°Jo <br /> 4-Bromofluorobenzene 25.0 L 70130 1 92% 92% 93% 91% 94° 88% 01% <br /> Surrogate Recove s k conc ACP %RC %RC %RC %RC I %RC %RC %RC I %RC <br /> Sample I.D. 1 1191119-531191119-54 191119.55 191119-561191119-11 191120-41 <br /> Dibromofluoromethane 250 70-130 108% 107° 98% 103% 98% 93% <br /> Toluene-d8 25.0 70-130 103% 104% 102% 103% 103% 101% <br /> 4-Bromofluorobenzene 25.0 70-130 1 92% 93% 93% 90;7 1 101% 91% <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: <br /> Final Reviewer: <br />