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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 720-266947/7 Client Sample ID: Lab Control Sample Dup <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266947 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Naphthalene 50.0 54.3 ug/Kg 109 60-147 4 20 <br /> 1,2,3-Trichlorobenzene 50.0 56.8 ug/Kg 114 60-140 6 20 <br /> 1,2,4-Trichlorobenzene 50.0 56.6 ug/Kg 113 60-140 5 20 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 92 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 84 60-140 <br /> Toluene-d8(Surr) 92 58-140 <br /> Lab Sample ID: 720-93317-1 MS Client Sample ID: #1-3EA <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266947 Prep Batch: 266973 <br /> Sample Sample Spike MS MS %Rec. <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits <br /> Naphthalene ND 46.4 42.4 ug/Kg 91 45-146 <br /> 1,2,3-Trichlorobenzene ND 46.4 34.6 ug/Kg 75 58-138 <br /> 1,2,4-Trichlorobenzene ND 46.4 36.9 ug/Kg 80 49-144 <br /> MS MS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 85 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 89 60-140 <br /> Toluene-d8(Surr) 89 58-140 <br /> Lab Sample ID: 720-93317-1 MSD Client Sample ID: #1-3EA <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 266947 Prep Batch: 266973 <br /> Sample Sample Spike MSD MSD %Rec. RPD <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Naphthalene ND 47.1 44.7 ug/Kg 95 45-146 5 20 <br /> 1,2,3-Trichlorobenzene ND 47.1 39.6 ug/Kg 84 58-138 14 20 <br /> 1,2,4-Trichlorobenzene ND 47.1 39.0 ug/Kg 83 49-144 6 20 <br /> MSD MSD <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene 86 45-131 <br /> 1,2-Dichloroethane-d4(Surr) 90 60-140 <br /> Toluene-d8(Surr) 90 58-140 <br /> Method: 80158 - Diesel Range Organics(DRO)/Oil Range Organics (ORO) with Silica Gel Cleanup <br /> Lab Sample ID: MB 720-266965/1-A Client Sample ID: Method Blank <br /> Matrix: Solid Prep Type: Silica Gel Cleanup <br /> Analysis Batch: 267049 Prep Batch: 266965 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> Diesel Range Organics[C10-C28] ND 2.0 0.75 mg/Kg 06/06/19 09:20 06/07/19 11:30 1 <br /> Motor Oil Range Organics[C24-C36] ND 50 10 mg/Kg 06/06/19 09:20 06/07/19 11:30 1 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 18 of 31 6/7/2019 <br />