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QC Sample Results <br /> Client: HydroChemPSC Job ID: 720-96745-1 <br /> Project/Site: R-1036 Tracy,CA <br /> Method: 8260B/CA LUFTMS - 8260B / CA LUFT MS (Continued) <br /> Lab Sample ID: LCS 720-277956/5 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 277956 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Xylenes,Total 100 99.9 ug/Kg 100 70-146 <br /> 2,2-Dichloropropane 50.0 53.5 ug/Kg 107 70-162 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 101 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 99 60-140 <br /> Toluene-d8(Surr) 101 58-140 <br /> Lab Sample ID: LCS 720-277956/7 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 277956 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Gasoline Range Organics(GRO) 1000 1070 ug/Kg 107 70-122 <br /> -C4-C12 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 106 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 102 60-140 <br /> Toluene-d8(Surr) 98 58-140 <br /> Lab Sample ID: LCSD 720-277956/6 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type:Total/NA <br /> Analysis Batch: 277956 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Methyl tert-butyl ether 50.0 56.5 ug/Kg 113 70-144 5 20 <br /> Acetone 250 267 ug/Kg 107 30-162 7 30 <br /> Benzene 50.0 51.9 ug/Kg 104 70-130 6 20 <br /> Dichlorobromomethane 50.0 56.6 ug/Kg 113 70-140 8 20 <br /> Bromobenzene 50.0 53.8 ug/Kg 108 70-130 7 20 <br /> Chlorobromomethane 50.0 52.7 ug/Kg 105 70-130 5 20 <br /> Bromoform 50.0 57.7 ug/Kg 115 59-158 7 20 <br /> Bromomethane 50.0 55.0 ug/Kg 110 59-132 1 20 <br /> 2-Butanone(MEK) 250 273 ug/Kg 109 59-159 8 20 <br /> n-Butylbenzene 50.0 56.8 ug/Kg 114 70-142 7 20 <br /> sec-Butylbenzene 50.0 54.5 ug/Kg 109 70-136 7 20 <br /> tert-Butyl benzene 50.0 53.5 ug/Kg 107 70-130 6 20 <br /> Carbon disulfide 50.0 50.0 ug/Kg 100 60-140 6 20 <br /> Carbon tetrachloride 50.0 56.5 ug/Kg 113 70-142 8 20 <br /> Chlorobenzene 50.0 51.5 ug/Kg 103 70-130 5 20 <br /> Chloroethane 50.0 54.7 ug/Kg 109 65-130 1 20 <br /> Chloroform 50.0 51.8 ug/Kg 104 77-127 4 20 <br /> Chloromethane 50.0 53.1 ug/Kg 106 55-140 1 20 <br /> 2-Chlorotoluene 50.0 53.4 ug/Kg 107 70-138 7 20 <br /> 4-Chlorotoluene 50.0 53.9 ug/Kg 108 70-136 7 20 <br /> Chlorodibromomethane 50.0 58.9 ug/Kg 118 70-146 7 20 <br /> 1,2-Dichlorobenzene 50.0 52.1 ug/Kg 104 70-130 5 20 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 13 of 49 1/8/2020 <br />