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QC Sample Results <br /> Client: Dysert Environmental, Inc TestAmerica Job ID: 720-86460-1 <br /> Project/Site: Zega Building <br /> Method: 82608 -Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCSD 720-244523/6 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch., 244523 <br /> Spike LCSD LCSD %Rec, RPD <br /> Analyte Added Result Qualifier knit D %Rec Limits RPD Limit <br /> Ethylene Dibromide 50.0 51.7 ug/Kg 103 70-140 1 20 <br /> Dibromomethane 50.0 50.9 ug/Kg 102 70-139 1 20 <br /> Dichlorodifluoromethane 50.0 24.8 ug/Kg 50 37-158 2 20 <br /> 1,1-Dichloroethane 50.0 51.1 ug/Kg 102 70-130 1 20 <br /> 1,2-Dichloroethane 50.0 50.9 ug/Kg 102 70-130 2 20 <br /> 1,1-Dichloroethene 50.0 47.6 ug/Kg 95 74-122 0 20 <br /> cis-1,2-Dichloroethene 50.0 51.8 ug/Kg 104 70-138 1 20 <br /> trans-l,2-Dichloroethene 50.0 49.1 uglKg 98 67-130 1 20 <br /> 1,2-Dichloropropane 50.0 54.4 uglKg 109 73-127 1 20 <br /> cis-1,3-Dichloropropene 50.0 56.2 ug/Kg 112 68-147 0 20 <br /> trans-1,3-Dichloropropene 50.0 54.0 uglKg 108 70-155 1 20 <br /> Ethylbenzene 50.0 48.4 ug/Kg 97 80-137 1 20 <br /> Hexachlorabutadiene 50.0 46.7 ug/Kg 93 70-132 2 20 <br /> 2-Hexanone 250 211 ug/Kg 84 62-158 0 20 <br /> Isopropylbenzene 50.0 48.9 ug/Kg 98 70-130 1 20 <br /> 4-1sopropyltoluene 50.0 48.7 ug/Kg 97 70-133 0 20 <br /> Methylene Chloride 50.0 48.8 ug/Kg 98 70-134 1 20 <br /> 4-Methyl-2-pentanone(MIBK) 250 218 ug/Kg 87 60-160 0 20 <br /> Naphthalene 50.0 47.8 ug/Kg 96 60-147 1 20 <br /> N-Propylbenzene 50.0 48.0 ug/Kg 96 70-130 0 20 <br /> Styrene 50.0 51.3 uglKg 103 70-130 0 20 <br /> 1,1,1,2-Tetrachloroethane 50.0 52.2 ug/Kg 104 70-130 0 20 <br /> 1,1,2,2-Tetrachloroethane 50.0 45.0 uglKg 90 70-146 0 20 <br /> Tetrachloroethene 50.0 50.1 ug/Kg 100 70-132 1 20 <br /> Toluene 50.0 47.9 ug/Kg 96 75-120 1 20 <br /> 1,2,3-Trichlorobenzene 50,0 52.9 ug/Kg 106 60-140 0 20 <br /> 1,2,4-Trichlorobenzene 50.0 53.8 ug/Kg 108 60-140 1 20 <br /> 1,1,1-Trichloroethane 50.0 50.0 ug/Kg 100 70-130 0 20 <br /> 1,12-Trichloroethane 50.0 53.0 ug/Kg 106 70-130 1 20 <br /> Trichloroethene 50.0 50.7 ug/Kg 101 70-133 1 20 <br /> Trichlorofluoramethane 50.0 43.1 ug/Kg 86 60-140 0 20 <br /> 1,2,3-Trichloropropane 50.0 46.3 ug/Kg 93 70-146 0 20 <br /> 1,1,2-Tdchloro-1,2,2-tritluoroetha 50.0 50.5 ug/Kg 101 60-140 1 20 <br /> re <br /> 1,2,4-Trimethylbenzene 50.0 49.5 ug/Kg 99 70-130 1 20 <br /> 1,3,5-Trimethylbenzene 50.0 48.8 ug/Kg 98 70-131 0 20 <br /> Vinyl acetate 50.0 45.5 ug/Kg 91 38-176 0 20 <br /> Vinyl chloride 50.0 42.5 ug/Kg 85 58-125 1 20 <br /> m-Xylene&p-Xylene 50.0 49.4 ug/Kg 99 70-146 1 20 <br /> o-Xylene 50.0 49.7 ug/Kg 99 70-140 2 20 <br /> Xylenes,Total 100 99.1 ug/Kg 99 70-146 1 20 <br /> 2,2-Dichloropropane 50.0 60.6 ug/Kg 121 70-162 1 20 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> 4-13romafluorobenzene 101 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 100 60-140 <br /> Tbfuene-d8(Surr) 101 58-140 <br /> TestAmerica Pleasanton <br /> Page 45 of 75 5121/2018 <br />