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QC Sample Results <br /> Client: WSP USA Environment& Infrastructure Inc. Job ID: 580-125173-1 <br /> Project/Site: Olin -Tracy, CA <br /> Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) <br /> Lab Sample ID: LCS 580-421619/4 Client Sample ID: Lab Control Sample <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 421619 <br /> Spike LCS LCS %Rec <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Acetone 25.0 31.5 ug/L 126 49-150 �. <br /> Chloroform 5.00 5.22 ug/L 104 75-120 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> Toluene-d8(Surr) 98 80-120 <br /> 1,2-Dichloroethane-d4(Surr) 97 80-120 <br /> Lab Sample ID: LCSD 580-421619/5 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 421619 <br /> Spike LCSD LCSD %Rec RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Acetone 25.0 31.9 ug/L 127 49-150 1 24 <br /> Chloroform 5.00 5.04 ug/L 101 75-120 4 21 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> Toluene-d8(Surr) 100 80-120 <br /> 1,2-Dichloroethane-d4(Surr) 98 80-120 <br /> Eurofins Seattle <br /> Page 31 of 37 3/30/2023 <br />