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QC Sample Results C <br /> Client: Geosyntec Consultants, Inc. TestAmerica Job ID: 320-47216-1 <br /> Project/Site: WR2501 Port of Stockton <br /> Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCSD 320-275439/6 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 275439 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Styrene 20.0 18.9 ug/L 94 80-120 1 15 <br /> tert-Butylbenzene 20.0 19.0 ug/L 95 78-120 0 19 <br /> 1,1,1,2-Tetrachloroethane 20.0 17.8 ug/L 89 79-120 1 23 <br /> 1,1,2,2-Tetrachloroethane 20.0 18.9 ug/L 95 74-137 0 27 <br /> Tetrachloroethene 20.0 19.4 ug/L 97 74-120 0 18 <br /> Toluene 20.0 19.8 ug/L 99 79-126 0 20 <br /> trans-1,2-Dichloroethene 20.0 20.6 ug/L 103 76-120 5 20 <br /> trans-1,3-Dichloropropene 20.0 17.5 ug/L 88 75-133 1 29 <br /> 1,2,3-Trichlorobenzene 20.0 14.8 ug/L 74 47-162 9 45 <br /> 1,2,4-Trichlorobenzene 20.0 14.1 ug/L 70 61-130 11 40 <br /> 1,1,1-Trichloroethane 20.0 20.0 ug/L 100 79-121 6 25 <br /> 1,1,2-Trichloroethane 20.0 19.1 ug/L 95 79-127 3 30 <br /> m-Xylene&p-Xylene 20.0 18.4 ug/L 92 80-121 1 15 <br /> Trichloroethene 20.0 19.7 ug/L 98 74-120 5 20 <br /> o-Xylene 20.0 18.1 ug/L 90 80-124 2 18 ❑ <br /> Trichlorofluoromethane 20.0 20.6 ug/L 103 60-135 13 41 <br /> 1,2,3-Trichloropropane 20.0 20.2 ug/L 101 73-120 6 22 <br /> 1,2,4-Trimethylbenzene 20.0 18.8 ug/L 94 76-120 0 17 <br /> 1,3,5-Trimethylbenzene 20.0 19.3 ug/L 96 79-120 2 20 <br /> Vinyl chloride 20.0 20.3 ug/L 102 68-121 3 33 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene(Surr) 93 74-120 <br /> 1,2-Dichloroethane-d4(Surr) 94 72-123 <br /> Toluene-d8(Surr) 94 78-120 <br /> LDibromofluoromethane(Surr) 95 80-123 <br /> Method: 8260B/CA LUFTMS -Volatile Organic Compounds by GC/MS <br /> Lab Sample ID: MB 320-273828/1-A Client Sample ID: Method Blank <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 275305 Prep Batch: 273828 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> Gasoline Range Organics(GRO) ND 5.0 1.0 mg/Kg 02/01/19 14:25 02/11/19 15:56 1 <br /> -C4-C12 <br /> MB MB <br /> Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br /> 4-Bromofluorobenzene(Surr) 91 59-120 02/01/19 14:25 02/11/19 15:56 1 <br /> Lab Sample ID: LCS 320-273828/4-A Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 275305 Prep Batch: 273828 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Gasoline Range Organics(GRO) 50.0 50.0 mg/Kg 100 70-130 <br /> -C4-C12 <br /> TestAmerica Sacramento <br /> Page 38 of 57 2/15/2019 <br />