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QC Sample Results C <br /> Client: Stantec Consulting Corp. Job ID: 320-59973-1 <br /> Project/Site: 7-11 No 41531 <br /> Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCS 320-370408/6 Client Sample ID: Lab Control Sample <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 370408 <br /> LCS LCs <br /> Surrogate %Recovery Qualifier Limits <br /> Toluene-d8(Surr) 96 78-120 <br /> Lab Sample ID: LCSD 320-370408/7 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 370408 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Benzene 20.0 17.96 ug/L 90 79-120 1 21 <br /> Bromobenzene 20.0 18.41 ug/L 92 80-120 1 17 <br /> Bromochloromethane 20.0 18.27 ug/L 91 80-120 2 19 <br /> Bromodichloromethane 20.0 18.31 ug/L 92 80-124 1 20 <br /> Bromoform 20.0 17.13 ug/L 86 80-120 3 16 <br /> Bromomethane 20.0 15.71 ug/L 79 65-132 3 40 <br /> Carbon tetrachloride 20.0 16.76 ug/L 84 78-124 3 25 <br /> Chlorobenzene 20.0 17.42 ug/L 87 78-120 1 15 ❑ <br /> Chloroethane 20.0 16.08 ug/L 80 65-123 4 40 <br /> Chloroform 20.0 17.66 ug/L 88 80-120 0 22 <br /> Chloromethane 20.0 17.31 ug/L 87 62-129 2 25 <br /> 2-Chlorotoluene 20.0 18.12 ug/L 91 79-120 0 19 <br /> 4-Chlorotoluene 20.0 18.69 ug/L 93 80-121 2 19 <br /> cis-1,2-Dichloroethene 20.0 17.53 ug/L 88 78-120 2 18 <br /> cis-1,3-Dichloropropene 20.0 18.42 ug/L 92 80-131 4 24 <br /> Dibromochloromethane 20.0 17.11 ug/L 86 80-122 0 17 <br /> 1,2-Dibromo-3-Chloropropane 20.0 18.88 ug/L 94 66-121 3 33 <br /> 1,2-Dibromoethane(EDB) 20.0 18.34 ug/L 92 78-120 2 15 <br /> Dibromomethane 20.0 18.26 ug/L 91 80-121 3 17 <br /> 1,2-Dichlorobenzene 20.0 19.04 ug/L 95 77-120 4 19 <br /> 1,3-Dichlorobenzene 20.0 18.46 ug/L 92 78-120 0 17 <br /> 1,4-Dichlorobenzene 20.0 18.44 ug/L 92 74-120 1 15 <br /> Dichlorodifluoromethane 20.0 14.75 ug/L 74 39-161 2 51 <br /> 1,1-Dichloroethane 20.0 17.48 ug/L 87 79-120 1 21 <br /> 1,2-Dichloroethane 20.0 18.65 ug/L 93 77-128 2 25 <br /> 1,1-Dichloroethene 20.0 16.69 ug/L 83 74-120 3 22 <br /> 1,2-Dichloropropane 20.0 18.92 ug/L 95 75-125 3 27 <br /> 1,3-Dichloropropane 20.0 19.10 ug/L 96 79-120 3 15 <br /> 2,2-Dichloropropane 20.0 16.96 ug/L 85 75-127 4 25 <br /> 1,1-Dichloropropene 20.0 17.43 ug/L 87 77-120 0 20 <br /> Ethylbenzene 20.0 18.09 ug/L 90 80-120 1 15 <br /> Hexachlorobutadiene 20.0 21.09 ug/L 105 69-120 1 30 <br /> Isopropylbenzene 20.0 18.26 ug/L 91 80-121 2 17 <br /> Methylene Chloride 20.0 17.05 ug/L 85 77-120 2 20 <br /> Methyl tert butyl ether 20.0 17.89 ug/L 89 71-125 3 24 <br /> m-Xylene&p-Xylene 20.0 17.92 ug/L 90 80-121 1 15 <br /> Naphthalene 20.0 20.17 ug/L 101 56-143 2 48 <br /> n-Butylbenzene 20.0 20.28 ug/L 101 72-120 1 25 <br /> N-Propylbenzene 20.0 18.82 ug/L 94 76-120 0 26 <br /> o-Xylene 20.0 18.02 ug/L 90 80-124 1 18 <br /> p-Isopropyltoluene 20.0 19.64 ug/L 98 76-120 0 18 <br /> Eurofins TestAmerica, Sacramento <br /> Page 20 of 30 4/9/2020 <br />