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• • <br />QC Sample Results <br />Client: Stantec Consulting Corp. TestAmerica Job ID: 720-86164-1 <br />Project/Site: Former Chase Chevrolet <br />Method: 8260B/CA_LUFTMS - 8260B / CA LUFT MS <br /> <br />Lab Sample ID: MB 720-243383/4 <br />Matrix: Water <br />I Analysis Batch: 243383 <br />MB MB <br />Analyte Result Qualifier RL MDL Unit <br />Client Sample ID: Method Blank <br />Prep Type: Total/NA <br />D Prepared Analyzed Dil Fac <br />Methyl tert-butyl ether ND 0.50 ug/L 05/02/18 20:52 1 <br />Benzene ND 0.50 ug/L 05/02/18 20:52 1 <br />Ethylbenzene ND 0.50 ug/L 05/02/18 20:52 1 <br />Naphthalene ND 1.0 ug/L 05/02/18 20:52 1 <br />Toluene ND 0.50 ug/L 05/02/18 20:52 1 <br />Xylenes, Total ND 0.50 ug/L 05/02/18 20:52 1 <br />Gasoline Range Organics (GRO) ND 50 ug/L 05/02/18 20:52 <br />-C4-C12 <br />MB MB <br />Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br />4-Bromofluorobenzene 86 67 -130 05/02/18 20:52 1 <br />1,2-Dichloroethane-d4 (Sun-) 97 72 -130 05/02/18 20.52 1 <br />Toluene-d8 (Surr) 92 70 _130 05/02/18 20.52 1 <br />Lab Sample ID: LCS 720-243383/5 <br />Matrix: Water <br />Analysis Batch: 243383 <br />Analyte <br />Spike <br />Added <br />LCS LCS <br />Result Qualifier <br />Client Sample ID: Lab Control Sample <br />Prep Type: Total/NA <br />%Rec. <br />Unit D %Rec Limits <br />Methyl tert-butyl ether 25.0 21.1 ug/L 84 70 - 130 <br />Benzene 25.0 22.0 ug/L 88 84 - 130 <br />Ethylbenzene 25.0 22.0 ug/L 88 87 - 127 <br />Naphthalene 25.0 22.9 ug/L 92 81 -130 <br />Toluene 25.0 21.8 ug/L 87 85 - 120 <br />m-Xylene & p-Xylene 25.0 21.7 ug/L 87 86- 126 <br />o-Xylene 25.0 22.0 ug/L 88 86 - 130 <br />Xylenes, Total 50.0 43.7 ug/L 87 86 - 130 <br />LCS LCS <br />Surrogate %Recovery Qualifier Limits <br />4-Bromofluorobenzene 88 67- 130 <br />1,2-Dichloroethane-d4 (Surr) 96 72- 130 <br />Toluene-d8 (Surr) 95 70- 130 <br />Lab Sample ID: LCS 720-243383/7 <br />Matrix: Water <br />Analysis Batch: 243383 <br />Analyte <br />Client Sample ID: Lab Control Sample <br />Prep Type: Total/NA <br />Spike LCS LCS %Rec. <br />Added Result Qualifier Unit D %Rec Limits <br />Gasoline Range Organics (GRO) <br /> 500 445 ug/L 89 77 - 130 <br />-C4-C12 <br />LCS LCS <br />Surrogate %Recovery Qualifier Limits <br />4-Bromofluorobenzene 86 67 - 130 <br />1,2-Dichloroethane-d4 (Surr) 94 72 -130 <br />1 Toluene-d8 (Surr) 92 70 -130 <br />TestAmerica Pleasanton <br />Page 21 of 38 5/11/2018