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QC Sample Results C <br /> Client: Union Pacific Railroad Job ID: 720-92832-1 <br /> Project/Site: UPRR-Stockton Monthly& Semi Annual <br /> Method: 624 - Volatile Organic Compounds (GC/MS) <br /> Lab Sample ID: MB 440-546827/7 Client Sample ID: Method Blank <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 546827 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> 1,1,1-Trichloroethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,1,2,2-Tetrachloroethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,1,2-Trichloroethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,1-Dichloroethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,1-Dichloroethene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,2-Dichlorobenzene ND 2.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,2-Dichloroethane ND 0.50 0.25 ug/L 05/16/19 09:28 1 <br /> 1,2-Dichloropropane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,3-Dichlorobenzene ND 2.0 0.25 ug/L 05/16/19 09:28 1 <br /> 1,4-Dichlorobenzene ND 2.0 0.25 ug/L 05/16/19 09:28 1 <br /> Benzene ND 0.50 0.25 ug/L 05/16/19 09:28 1 <br /> Bromodichloromethane ND 2.0 0.25 ug/L 05/16/19 09:28 1 <br /> Bromoform ND 1.0 0.40 ug/L 05/16/19 09:28 1 <br /> Bromomethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Carbon tetrachloride ND 0.50 0.25 ug/L 05/16/19 09:28 1 ❑ <br /> Chlorobenzene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Chloroethane ND 1.0 0.40 ug/L 05/16/19 09:28 1 <br /> Chloroform ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Chloromethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> cis-1,3-Dichloropropene ND 0.50 0.25 ug/L 05/16/19 09:28 1 <br /> Dibromochloromethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Ethylbenzene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Methylene Chloride ND 5.0 1.1 ug/L 05/16/19 09:28 1 <br /> Tetrachloroethene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Toluene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> trans-1,2-Dichloroethene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> trans-1,3-Dichloropropene ND 0.50 0.25 ug/L 05/16/19 09:28 1 <br /> Trichloroethene ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Trichlorofluoromethane ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> Vinyl chloride ND 0.50 0.25 ug/L 05/16/19 09:28 1 <br /> 1,2-Dichloroethene,Total ND 1.0 0.25 ug/L 05/16/19 09:28 1 <br /> MB MB <br /> Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br /> 4-Bromofluorobenzene(Surr) 97 80-120 051161190 1 <br /> Dibromofluoromethane(Surr) 102 76-132 05/16/19 09:28 1 <br /> Toluene-d8(Surr) 100 80-128 05/16/19 09:28 1 <br /> Lab Sample ID: LCS 440-546827/5 Client Sample ID: Lab Control Sample <br /> Matrix: Water Prep Type: Total/NA <br /> Analysis Batch: 546827 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> 1,1,1-Trichloroethane 10.0 9.86 ug/L 99 70-130 <br /> 1,1,2,2-Tetrachloroethane 10.0 10.7 ug/L 107 63-130 <br /> 1,1,2-Trichloroethane 10.0 10.5 ug/L 105 70-130 <br /> 1,1-Dichloroethane 10.0 10.2 ug/L 102 64-130 <br /> 1,1-Dichloroethene 10.0 11.7 ug/L 117 70-130 <br /> 1,2-Dichlorobenzene 10.0 11.2 ug/L 112 70-130 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 10 of 31 5/20/2019 <br />