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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: LCS 720-244496/6 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 244496 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> 1,1,2,2-Tetrachloroethane 50.0 47.6 ug/Kg 95 70-146 <br /> Tetrachloroethene 50.0 56.3 uglKg 113 70-132 <br /> Toluene 50.0 49.9 uglKg 100 75-120 <br /> 1,2,3-Trichlorobenzene 50.0 52.1 ugfKg 104 60-140 <br /> 1,2,4-Trichlorobenzene 50.0 52.9 uglKg 106 60-140 <br /> 1,1,1-Trichloroethane 50.0 54.3 uglKg 109 70-130 <br /> 1,1,2-Trichloroethane 50.0 53.9 uglKg 108 70-130 <br /> Trichloroethene 50.0 52.0 ug/Kg 104 70-133 <br /> Trichlorafluoromethane 50.0 58.8 ug/Kg 118 60-140 <br /> 1,2,3-Trichloropropane 50.0 48.1 ug/Kg 96 70-146 <br /> 1,1,2-Trichloro-1,2,2-tdfluoroetha 50.0 55.7 ug/Kg 111 60-140 <br /> ne <br /> 1,2,4-Trimethylbenzene 50.0 51.0 ug/Kg 102 70-130 <br /> 1,3,5-Trimethylbenzene 50.0 50.4 ug/Kg 101 70-131 <br /> Vinyl acetate 50.0 49.8 ug1Kg 100 38-176 <br /> Vinyl chloride 50.0 55.9 ug/Kg 112 58-125 <br /> m-Xylene&p-Xylene 50.0 53.0 ug/Kg 106 70-146 <br /> o-Xylene 50.0 50.4 ug/Kg 101 70-140 <br /> Xylenes,Total 100 103 ug/Kg 103 70-146 <br /> 2,2-Dirhioropropane 50.0 56.1 ug/Kg 112 70-162 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromof4uorobenzene 99 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 99 60-140 <br /> Toluene-d8(Surr) 101 58-140 <br /> Lab Sample ID: LCS 720-244496/8 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 244496 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Gasoline Range Organics(GRO) 1000 865 ug/Kg 87 70-122 <br /> -C4-C12 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluoraben7ene 101 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 104 6e-140 <br /> Toluene-d8(Surr) 100 58-140 <br /> Lab Sample ID: LCSD 720-244496/7 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 244496 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Methyl tert-butyl ether 50.0 55.2 ug/Kg 110 70-144 3 20 <br /> Acetone 250 233 ug/Kg 93 30-162 6 30 <br /> Benzene 50.0 52.9 ug/Kg 106 70-130 0 20 <br /> Dichlorobromomethane 50.0 54.7 ug/Kg 109 70-140 0 20 <br /> TestAmerica Pleasanton <br /> Page 38 of 75 5/21/2018 <br />