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QC Sample Results <br /> Client: Ghilotti Construction Company Inc Job ID: 720-93317-1 <br /> Project/Site: Hayward 680 Alamo <br /> Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID: LCSD 720-266845/6 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266845 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Vinyl acetate 50.0 51.3 ug/Kg 103 3-8--17-6 6 20 <br /> Vinyl chloride 50.0 44.3 ug/Kg 89 58-125 7 20 <br /> m-Xylene&p-Xylene 50.0 44.0 ug/Kg 88 70-146 1 20 <br /> o-Xylene 50.0 44.6 ug/Kg 89 70-140 1 20 <br /> Xylenes,Total 100 88.6 ug/Kg 89 70-146 1 20 <br /> 2,2-Dichloropropane 50.0 44.8 ug/Kg 90 70-162 2 20 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 93 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 88 60-140 <br /> Toluene-d8(Surr) 91 58-140 <br /> Lab Sample ID: LCSD 720-26684518 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266845 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Gasoline Range Organics(GRO) 1000 936 ug/Kg 94 70-122 1 20 <br /> -C4-C12 <br /> Lab Sample ID: MB 720-266947/5 Client Sample ID: Method Blank <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266947 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> Naphthalene ND 10 1.5 ug/Kg 06/06/19 08:56 1 <br /> 1,2,3-Trichlorobenzene ND 5.0 0.74 ug/Kg 06/06/19 08:56 1 <br /> 1,2,4-Trichlorobenzene ND 5.0 0.71 ug/Kg 06/06/19 08:56 1 <br /> MB MB <br /> Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br /> 4-Bromofluorobenzene 89 45-131 06/06/19 08:56 1 <br /> 1,2-Dichloroethane-d4(Surr) 90 60-140 06/06/19 08:56 1 <br /> Toluene-d8(Surr) 93 58-140 06/06/19 08:56 1 <br /> Lab Sample ID: LCS 720-266947/6 Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266947 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Naphthalene 50.0 52.1 ug/Kg 104 60-147 <br /> 1,2,3-Trichlorobenzene 50.0 53.6 ug/Kg 107 60-140 <br /> 1,2,4-Trichlorobenzene 50.0 53.7 ug/Kg 107 60-140 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 92 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 90 60-140 <br /> Toluene-d8(Surr) 93 58-140 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 17 of 31 6/7/2019 <br />