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QC Sample Results <br /> Client: GHD Services Inc. TestAmerica Job ID: 720-91968-1 <br /> Project/Site: UPRR-Tracy Substation <br /> Method: 82608 - Volatile Organic Compounds (GUMS) (Continued) <br /> Lab Sample ID: MB 720-262202/4 Client Sample ID: Method Blank <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 262202 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> 1,1,1,2-Tetrachloroethane ND 5.0 0.76 ug/Kg 03/19/1910:45 1 <br /> 1,1,2,2-Tetrachloroethane ND 5.0 0.75 ug/Kg 03/19/1910:45 1 <br /> Tetrachloroethene NO 5.0 0.67 ug/Kg 03/19/1910:45 1 <br /> Toluene NO 5.0 0.71 ug/Kg 03/19/1910:45 1 <br /> 1,2,3-Trichlorobenzene ND 5.0 0.74 ug/Kg 03/19/1910:45 1 <br /> 1,2,4-Trichlorobenzene ND 5.0 0.71 ug/Kg 03/19/1910:45 1 <br /> 1,1,1-Trichloroethane ND 5.0 0.61 ug/Kg 03/19/1910:45 1 <br /> 1,1,2-Trichloroethane ND 5.0 0.70 ug/Kg 03/19/1910:45 1 <br /> Trichloroethene ND 5.0 0.63 ug/Kg 03/19/1910:45 1 <br /> Trichlorofluoromethane ND 5.0 0.56 ug/Kg 03/19/1910:45 1 <br /> 1,2,3-Trichloropropane ND 5.0 0.77 ug/Kg 03/19/1910:45 1 <br /> 1,1,2-Trichloro-1,2,2-trifluoroethane ND 5.0 2.1 ug/Kg 03/19/1910:45 1 <br /> 1,2,4-Trimethylbenzene ND 5.0 1.6 ug/Kg 03/19/1910:45 1 <br /> 1,3,5-Trimethylbenzene ND 5.0 0.65 ug/Kg 03/19/1910:45 1 <br /> Vinyl acetate ND 20 5.0 ug/Kg 03/19/19 10:45 1 <br /> Vinyl chloride ND 5.0 0.73 ug/Kg 03/19/19 10:45 1 <br /> m-Xylene&p-Xylene ND 5.0 1.2 ug/Kg 03/19/19 10:45 1 <br /> o-Xylene ND 5.0 0.67 ug/Kg 03/19/1910:45 1 <br /> Xylenes,Total ND 5.0 1.2 ug/Kg 03/19/19 10:45 1 <br /> 2,2-Dichloropropane ND 5.0 2.0 ug/Kg 03/19/1910:45 1 <br /> Gasoline Range Organics(GRO) ND 250 100 ug/Kg 03/19/19 10:45 1 <br /> -C4-C12 <br /> MB MB <br /> Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br /> 4-Bromofluorobenzene 105 45-131 03/19/19 10:45 1 <br /> 1,2-Dichloroethane-d4(Surr) 96 60-140 03/19/19 10:45 1 <br /> Toluene-d8(Surr) 97 58-140 03/19/19 10.45 1 <br /> Lab Sample ID: LCS 720-26220215 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 262202 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Methyl tert-butyl ether 50.0 54.5 ug/Kg 109 70-144 <br /> Acetone 250 294 ug/Kg 118 30-162 <br /> Benzene 50.0 55.0 ug/Kg 110 70-130 <br /> Dichlorobromomethane 50.0 51.8 ug/Kg 104 70-140 <br /> Bromobenzene 50.0 50.9 ug/Kg 102 70-130 <br /> Chlorobromomethane 50.0 46.7 ug/Kg 93 70-130 <br /> Bromoform 50.0 46.8 ug/Kg 94 59-158 <br /> Bromomethane 50.0 46.4 ug/Kg 93 59-132 <br /> 2-Butanone(MEK) 250 262 ug/Kg 105 59-159 <br /> n-Butylbenzene 50.0 59.6 ug/Kg 119 70-142 <br /> sec-Butylbenzene 50.0 57.9 ug/Kg 116 70-136 <br /> tert-Butylbenzene 50.0 57.0 ug/Kg 114 70-130 <br /> Carbon disulfide 50.0 55.4 ug/Kg 111 60-140 <br /> Carbon tetrachloride 50.0 49.8 ug/Kg 100 70-142 <br /> Chlorobenzene 50.0 50.9 ug/Kg 102 70-130 <br /> TestAmerica Pleasanton <br /> Page 11 of 30 3/20/2019 <br />