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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: 8260B -Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: 720-91968-1 MS Client Sample ID: WR#19721 <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 262202 Prep Batch: 262251 <br /> MS MS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 102 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 100 60-140 <br /> Toluene-d8(Surr) 96 58-140 <br /> Lab Sample ID: 720-91968-1 MSD Client Sample ID: WR#19721 <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 262202 Prep Batch: 262251 <br /> Sample Sample Spike MSD MSD %Rec. RPD <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Methyl tert-butyl ether ND 49.3 63.0 ug/Kg 128 69-130 16 20 <br /> Acetone ND 247 447 F1 ug/Kg 181 37-150 17 20 <br /> Benzene ND 49.3 58.7 ug/Kg 119 70-130 11 20 <br /> Dichlorobromomethane ND 49.3 56.0 ug/Kg 113 64-135 12 20 <br /> Bromobenzene ND 49.3 55.2 ug/Kg 112 70-130 10 20 <br /> Chlorobromomethane ND 49.3 52.3 ug/Kg 106 65-130 12 20 <br /> Bromoform ND 49.3 55.7 ug/Kg 113 58-132 12 20 <br /> Bromomethane ND 49.3 48.7 ug/Kg 99 56-130 8 20 <br /> 2-Butanone(MEK) ND 247 313 ug/Kg 127 41-150 14 20 <br /> n-Butylbenzene 1.4 J 49.3 54.2 ug/Kg 107 60-145 11 20 <br /> sec-Butylbenzene ND 49.3 55.1 ug/Kg 112 64-137 12 20 <br /> tert-Butylbenzene ND 49.3 56.1 ug/Kg 114 63-134 12 20 <br /> Carbon disulfide ND 49.3 56.2 ug/Kg 114 10-150 9 20 <br /> Carbon tetrachloride ND 49.3 50.3 ug/Kg 102 54.130 10 20 <br /> Chlorobenzene ND 49.3 56.7 ug/Kg 115 70-130 9 20 <br /> Chloroethane ND 49.3 55.2 ug/Kg 112 61-130 7 20 <br /> Chloroform ND 49.3 54.1 ug/Kg 110 67-130 9 20 <br /> Chloromethane ND 49.3 61.1 ug/Kg 124 50-131 3 20 <br /> 2-Chlorotoluene ND 49.3 62.6 ug/Kg 127 70-130 10 20 <br /> 4-Chlorotoluene ND 49.3 62.1 ug/Kg 126 70-130 9 20 <br /> Chlorodibromomethane ND 49.3 53.1 ug/Kg 108 60-141 11 20 <br /> 1,2-Dichlorobenzene ND 49.3 55.2 ug/Kg 112 70-130 12 20 <br /> 1,3-Dichlorobenzene ND 49.3 53.2 ug/Kg 108 70-130 10 20 <br /> 1,4-Dichlorobenzene ND 49.3 54.7 ug/Kg 111 70-130 11 20 <br /> 1,3-Dichloropropane ND 49.3 59.3 ug/Kg 120 70-130 12 20 <br /> 1,1-Dichloropropene ND 49.3 56.2 ug/Kg 114 67-130 9 20 <br /> 1,2-Dibromo-3-Chloropropane ND 49.3 69.6 F1 ug/Kg 141 57-130 17 20 <br /> Ethylene Dibromide ND 49.3 56.3 ug/Kg 114 66-135 13 20 <br /> Dibromomethane ND 49.3 54.2 ug/Kg 110 65-131 12 20 <br /> Dichlorodifluoromethane ND 49.3 59.7 ug/Kg 121 38-130 2 20 <br /> 1,1-Dichloroethane ND 49.3 60.7 ug/Kg 123 67-130 9 20 <br /> 1,2-Dichloroethane ND 49.3 55.0 ug/Kg 112 70-130 11 20 <br /> 1,1-Dichloroethene ND 49.3 55.3 ug/Kg 112 64-130 8 20 <br /> cis-1,2-Dichloroethene ND 49.3 57.4 ug/Kg 116 68-131 10 20 <br /> trans-1,2-Dichloroethene ND 49.3 55.3 ug/Kg 112 70-130 8 20 <br /> 1,2-Dichloropropane ND 49.3 65.0 ug/Kg 132 65-133 11 20 <br /> cis-1,3-Dichloropropene ND 49.3 62.6 ug/Kg 127 46-139 11 20 <br /> trans-1,3-Dichloropropene ND 49.3 60.5 ug/Kg 123 55-131 11 20 <br /> Ethylbenzene 1.3 J 49.3 57.1 ug/Kg 113 65-130 10 20 <br /> TestAmerica Pleasanton <br /> Page 17 of 30 3/20/2019 <br />