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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: 82608 - Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCS 320-275439/5 Client Sample ID: Lab Control Sample <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 275439 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene(Surr) 96 74-120 <br /> 1,2-Dichloroethane-d4(Surr) 94 72-123 <br /> Toluene-d8(Surr) 94 78-120 <br /> Dibromofluoromethane(Surr) 92 80-123 <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 /> Benzene 20.0 19.7 ug/L 98 79-120 2 21 <br /> Bromobenzene 20.0 18.8 ug/L 94 80-120 2 17 <br /> Bromochloromethane 20.0 18.3 ug/L 92 80-120 1 19 <br /> Bromodichloromethane 20.0 18.7 ug/L 94 80-124 2 20 <br /> Bromoform 20.0 18.3 ug/L 92 80-120 1 16 ❑ <br /> Bromomethane 20.0 22.3 ug/L 111 65-132 5 40 <br /> Carbon tetrachloride 20.0 20.8 ug/L 104 78-124 3 25 <br /> Chlorobenzene 20.0 18.6 ug/L 93 78-120 1 15 <br /> Chloroethane 20.0 19.4 ug/L 97 65-123 5 40 <br /> Chloroform 20.0 19.6 ug/L 98 80-120 4 22 <br /> Chloromethane 20.0 19.8 ug/L 99 62-129 5 25 <br /> 2-Chlorotoluene 20.0 19.0 ug/L 95 79-120 1 19 <br /> 4-Chlorotoluene 20.0 19.2 ug/L 96 80-121 2 19 <br /> 1,2-Dibromo-3-Chloropropane 20.0 16.0 ug/L 80 66-121 2 33 <br /> 1,2-Dibromoethane(EDB) 20.0 18.7 ug/L 93 78-120 0 15 <br /> Dibromomethane 20.0 19.4 ug/L 97 80-121 3 17 <br /> 1,2-Dichlorobenzene 20.0 18.0 ug/L 90 77-120 2 19 <br /> 1,3-Dichlorobenzene 20.0 18.4 ug/L 92 78-120 0 17 <br /> 1,4-Dichlorobenzene 20.0 18.1 ug/L 91 74-120 1 15 <br /> Dichlorodifluoromethane 20.0 17.0 ug/L 85 39-161 25 51 <br /> 1,1-Dichloroethane 20.0 19.8 ug/L 99 79-120 4 21 <br /> 1,2-Dichloroethane 20.0 19.2 ug/L 96 77-128 3 25 <br /> cis-1,2-Dichloroethene 20.0 19.1 ug/L 95 78-120 5 18 <br /> 1,1-Dichloroethene 20.0 19.4 ug/L 97 74-120 3 22 <br /> 1,2-Dichloropropane 20.0 19.1 ug/L 95 75-125 0 27 <br /> 1,3-Dichloropropane 20.0 18.6 ug/L 93 79-120 1 15 <br /> 2,2-Dichloropropane 20.0 19.3 ug/L 96 75-127 7 25 <br /> cis-1,3-Dichloropropene 20.0 17.6 ug/L 88 80-131 0 24 <br /> 1,1-Dichloropropene 20.0 19.4 ug/L 97 77-120 3 20 <br /> Ethylbenzene 20.0 19.0 ug/L 95 80-120 0 15 <br /> Hexachlorobutadiene 20.0 15.3 ug/L 76 69-120 5 30 <br /> Isopropylbenzene 20.0 18.5 ug/L 92 80-121 2 17 <br /> Methylene Chloride 20.0 19.7 ug/L 98 77-120 4 20 <br /> n-Butylbenzene 20.0 17.6 ug/L 88 72-120 4 25 <br /> Naphthalene 20.0 15.1 ug/L 75 56-143 8 48 <br /> N-Propylbenzene 20.0 20.0 ug/L 100 76-120 1 26 <br /> p-Isopropyltoluene 20.0 18.4 ug/L 92 76-120 1 18 <br /> sec-Butylbenzene 20.0 18.8 ug/L 94 77-120 0 19 <br /> TestAmerica Sacramento <br /> Page 37 of 57 2/15/2019 <br />