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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: 9/16/2020 Matrix: SolidlSoillLiguid <br /> Machine: D Unit: rnglKii (PPM) <br /> Matrix Spike(MS)/Matrix Spike Duplicate (MSD) <br /> Spiked Sample Lab I.D.: 200916-1 MS/MSD <br /> Analyte S.R. s k conc I MS _ %RC MSD I %RC I %RPa ACP %RC ACP RPD <br /> Benzene 0 0.050 0.054 108% I 0.055 110% 2% 75-925 0-20 <br /> Chlorobenzene 0 0.050 0.053 106% 0.053 106% 0% 75-125 0-20 <br /> 1,1-Dichloroethene 0 0.050 0.058 116% 0.059 118% 2% 75-125 0-20 <br /> Toluene 0 0.050 0.052 104% 0.052 104% 0% 75-925 0-20 <br /> Trichloroethene (TCE0 0.050 0.047 94% 0.048 96% 2% 75-125 0-20 <br /> Lab Control Spike(LCS): <br /> Anal e s k conc LCS %RC ACP%RC <br /> Benzene 0.050 0.061 122% 75-125 <br /> Chlorobenzene 0.050 0.049 98% 75-125 <br /> Chloroform 0.050 0.054 108% 75-125 <br /> 1,1-Dichlorothene 0.050 0.058 116% 75-125 <br /> Eth (benzene 0.050 0.054 108% 75-125 <br /> o-X lene 0.050 0.053 106% 75-125 <br /> m, -X lene 0.100 0.113 113% 75-125 <br /> Toluene 0.050 0.057 114% 75-125 <br /> 1,1,1-Trichloroethane 0.050 0.056 112% 75-125 <br /> Trichloroethene(TCE) 0.050 0.054 108% 75-125 <br /> Surrogate Recovery s k conc ACP%RC MB%RC %RC %RC %RC %RC %RC %RC <br /> Sample I.D. M-BLK ; 200916-1 200916-2 200916-3 200916-4 200916-5 200916-6 <br /> Dibromofluoromethane 50.0 70-130 107% 111% 109% 109% 110% 110% 1 110°/a <br /> Toluene-d8 50-0 70-130 104% 103% 104% 103% 102% 103% 104% <br /> 4-Bromofluorobenzene 50.0 70-130 90% 93% 93% 92% 93% 93% 92% <br /> Surrogate Recovery. s k conc ACP%RC %RC %RC I %RC %RC %RC %RC - %RC <br /> Sample I.D. 200916-7 200916-8 200916-9 200916-10 200916-11 200916-12 200916-66 <br /> Dibromofluoromethane 50-0 70-730 111% 113% 113% 112% 115% 118% 118% <br /> Toluene-d8 50-0 70-130 103% 104% 103% 104% 104% 112% 104% <br /> 4-Bromofluorobenzene 50,0 70-130- 92% 93% 92% 93% 92% 91% 95% <br /> Surrogate Recovery I s k conc I ACP %RC a6RC I %RC RC %RC IN.RC %RC %RC <br /> Sample I.D. 1 7_ <br /> Dibromofluoromethane 50,0 70-130 <br /> Toluene-d8 50,0 70-130 <br /> 4-Bromofluorobenzene 50,0 70-130 <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 /> t - <br /> Final Reviewer: <br />