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QC Sample Results <br /> Client: GHD Services Inc. TestAmerica Job ID: 720-91968-1 <br /> Project/Site: UPRR-Tracy Substation <br /> Method: 82608 -Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCS 720-262202/5 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 262202 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Chloroethane 50.0 52.2 ug/Kg 104 65-130 <br /> Chloroform 50.0 50.7 ug/Kg 101 77-127 <br /> Chloromethane 50.0 59.8 ug/Kg 120 55-140 <br /> 2-Chlorotoluene 50.0 59.0 ug/Kg 118 70-138 <br /> 4-Chlorotoluene 50.0 58.2 ug/Kg 116 70-136 <br /> Chlorodibromomethane 50.0 49.4 ug/Kg 99 70-146 <br /> 1,2-Dichlorobenzene 50.0 52.1 ug/Kg 104 70-130 <br /> 1,3-Dichlorobenzene 50.0 51.4 ug/Kg 103 70-131 <br /> 1,4-Dichlorobenzene 50.0 50.8 ug/Kg 102 70-130 <br /> 1,3-Dichloropropane 50.0 53.4 ug/Kg 107 70-140 <br /> 1,1-Dichloropropene 50.0 55.0 ug/Kg 110 70-130 <br /> 1,2-Dibromo-3-Chloropropane 50.0 54.2 ug/Kg 108 60-145 <br /> Ethylene Dibromide 50.0 49.8 ug/Kg 100 70-140 <br /> Dibromomethane 50.0 47.6 ug/Kg 95 70-139 <br /> Dichlorodifluoromethane 50.0 59.1 ug/Kg 118 37-158 <br /> 1,1-Dichloroethane 50.0 57.0 ug/Kg 114 70-130 <br /> 1,2-Dichloroethane 50.0 49.5 ug/Kg 99 70-130 <br /> 1,1-Dichloroethene 50.0 52.7 ug/Kg 105 74-122 <br /> cis-1,2-Dichloroethene 50.0 53.2 ug/Kg 106 70-138 <br /> trans-1,2-Dichloroethene 50.0 52.6 ug/Kg 105 67-130 <br /> 1,2-Dichloropropane 50.0 60.0 ug/Kg 120 73-127 <br /> cis-1,3-Dichloropropene 50.0 58.1 ug/Kg 116 68-147 <br /> trans-1,3-Dichloropropene 50.0 54.8 ug/Kg 110 70-155 <br /> Ethylbenzene 50.0 52.8 ug/Kg 106 80-137 <br /> Hexachlorobutadiene 50.0 56.2 ug/Kg 112 70-132 <br /> 2-Hexanone 250 259 ug/Kg 104 62-158 <br /> Isopropylbenzene 50.0 52.4 ug/Kg 105 70-130 <br /> 4-Isopropyltoluene 50.0 57.7 ug/Kg 115 70-133 <br /> Methylene Chloride 50.0 53.2 ug/Kg 106 70-134 <br /> 4-Methyl-2-pentanone(MIBK) 250 262 ug/Kg 105 60-160 <br /> Naphthalene 50.0 55.9 ug/Kg 112 60-147 <br /> N-Propylbenzene 50.0 59.5 ug/Kg 119 70-130 <br /> Styrene 50.0 48.4 ug/Kg 97 70-130 <br /> 1,1,1,2-Tetrachloroethane 50.0 51.0 ug/Kg 102 70-130 <br /> 1,1,2,2-Tetrachloroethane 50.0 60.7 ug/Kg 121 70-146 <br /> Tetrachloroethene 50.0 47.5 ug/Kg 95 70-132 <br /> Toluene 50.0 53.7 ug/Kg 107 75-120 <br /> 1,2,3-Trichlorobenzene 50.0 54.8 ug/Kg 110 60-140 <br /> 1,2,4-Trichlorobenzene 50.0 55.3 ug/Kg 111 60-140 <br /> 1,1,1-Trichloroethane 50.0 50.8 ug/Kg 102 70-130 <br /> 1,1,2-Trichloroethane 50.0 55.2 ug/Kg 110 70-130 <br /> Trichloroethene 50.0 48.0 ug/Kg 96 70-133 <br /> Trichlorofluoromethane 50.0 52.7 ug/Kg 105 60-140 <br /> 1,2,3-Trichloropropane 50.0 56.2 ug/Kg 112 70-146 <br /> 1,1,2-Tdchloro-1,2,2-trifluoroetha 50.0 49.1 ug/Kg 98 60-140 <br /> ne <br /> 1,2,4-Trimethylbenzene 50.0 56.6 ug/Kg 113 70-130 <br /> 1,3,5-Trimethylbenzene 50.0 57.8 ug/Kg 116 70-131 <br /> TestAmerica Pleasanton <br /> Page 12 of 30 3/20/2019 <br />