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QC Sample Results C <br /> Client: Union Pacific Railroad Job ID: 720-92832-1 <br /> Project/Site: UPRR-Stockton Monthly& Semi Annual <br /> Method: 624 - Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCS 440-546827/5 Client Sample ID: Lab Control Sample <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 546827 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> 1,2-Dichloroethane 10.0 10.4 ug/L 104 57-138 <br /> 1,2-Dichloropropane 10.0 10.1 ug/L 101 67-130 <br /> 1,3-Dichlorobenzene 10.0 11.1 ug/L 111 70-130 <br /> 1,4-Dichlorobenzene 10.0 11.3 ug/L 113 70-130 <br /> Benzene 10.0 11.2 ug/L 112 68-130 <br /> Bromodichloromethane 10.0 9.51 ug/L 95 70-132 ' <br /> Bromoform 10.0 8.98 ug/L 90 60-148 <br /> Bromomethane 10.0 10.7 ug/L 107 64-139 <br /> Carbon tetrachloride 10.0 9.96 ug/L 100 60-150 <br /> Chlorobenzene 10.0 10.3 ug/L 103 70-130 <br /> Chloroethane 10.0 11.3 ug/L 113 64-135 <br /> Chloroform 10.0 9.89 ug/L 99 70-130 <br /> Chloromethane 10.0 12.3 ug/L 123 47-140 <br /> cis-1,3-Dichloropropene 10.0 10.5 ug/L 105 70-133 <br /> Dibromochloromethane 10.0 9.72 ug/L 97 69-145 <br /> Ethylbenzene 10.0 9.81 ug/L 98 70-130 ❑ <br /> Methylene Chloride 10.0 10.7 ug/L 107 52-130 <br /> Tetrachloroethene 10.0 11.5 ug/L 115 70-130 <br /> Toluene 10.0 10.1 ug/L 101 70-130 <br /> trans-1,2-Dichloroethene 10.0 10.7 ug/L 107 70-130 <br /> trans-1,3-Dichloropropene 10.0 10.7 ug/L 107 70-132 <br /> Trichloroethene 10.0 10.2 ug/L 102 70-130 <br /> Trichlorofluoromethane 10.0 10.8 ug/L 108 60-150 <br /> Vinyl chloride 10.0 11.6 ug/L 116 59-133 <br /> 1,2-Dichloroethene,Total 20.0 21.3 ug/L 107 60-140 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene(Surr) 99 80-120 <br /> Dibromofluoromethane(Surr) 103 76-132 <br /> Toluene-d8(Surr) 99 80-128 <br /> Lab Sample ID: 720-92832-1 MS Client Sample ID: S40181W#1 <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 546827 <br /> Sample Sample Spike MS MS %Rec. <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits <br /> 1,1,1-Trichloroethane ND 10.0 8.42 ug/L 84 70-130 <br /> 1,1,2,2-Tetrachloroethane ND 10.0 9.68 ug/L 97 63-130 <br /> 1,1,2-Trichloroethane ND 10.0 8.55 ug/L 86 70-130 <br /> 1,1-Dichloroethane ND 10.0 8.69 ug/L 87 65-130 <br /> 1,1-Dichloroethene ND 10.0 9.63 ug/L 96 70-130 <br /> 1,2-Dichlorobenzene ND 10.0 9.39 ug/L 94 70-130 <br /> 1,2-Dichloroethane ND 10.0 8.94 ug/L 89 56-146 <br /> 1,2-Dichloropropane ND 10.0 8.54 ug/L 85 69-130 <br /> 1,3-Dichlorobenzene ND 10.0 9.56 ug/L 96 70-130 <br /> 1,4-Dichlorobenzene ND 10.0 9.85 ug/L 99 70-130 <br /> Benzene ND 10.0 9.37 ug/L 94 66-130 <br /> Bromodichloromethane ND 10.0 8.02 ug/L 80 70-138 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 11 of 31 5/20/2019 <br />