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Sun Star 25712 Commercentre Drive <br /> Laboratories, Inc. Lake Forest,California 92630 <br /> PR!]V1DING QOALnv ANnrr7ieAc SEsvices NA'rlOWwmi- 949.297.5020 Phone <br /> 949.297.5027 Fax <br /> Brusca Associates Inc. Project: Anderson Barn Grover Ranch <br /> PO Box 332 Project Number: 260-004 Reported: <br /> Roseville CA,95661 Project Manager: Joe Brusca 08/23/23 14:47 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> SunStar Laboratories,Inc. <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 23HO284-EPA 5030 GCMS <br /> Matrix Spike(23H0284-MS1) Source:T232346-06 Prepared:08/21/23 Analyzed:08/22/23 <br /> Chlorobenzene 38.9 2.5 ug/kg 50.0 ND 77.8 65.2-125 <br /> 1,1-Dichloroethene 42.7 2.5 50.0 ND 85.3 60.9-131 <br /> Trichloroethene 40.2 2.5 50.0 ND 80.5 62.1-126 <br /> Benzene 38.6 2.5 50.0 ND 77.2 65.3-127 <br /> Toluene 38.9 2.5 50.0 ND 77.7 64.3-125 <br /> Surrogate:4-Bromofluorobenzene 51.0 50.0 102 81.9-128 <br /> Surrogate:Dibromofluoromethane 55.2 50.0 110 73-126 <br /> Surrogate:Toluene-d8 49.4 50.0 98.8 80.4-121 <br /> Matrix Spike Dup(23H0284-MSD1) Source:T232346-06 Prepared:08/21/23 Analyzed:08/22/23 <br /> Chlorobenzene 11.4 2.5 ug/kg 50.0 ND 22.8 65.2-125 109 20 QM-07 <br /> 1,1-Dichloroethene 15.2 2.5 50.0 ND 30.5 60.9-131 94.7 20 QM-07 <br /> Trichloroethene 10.5 2.5 50.0 ND 21.0 62.1-126 117 20 QM-07 <br /> Benzene 11.4 2.5 50.0 ND 22.8 65.3-127 109 20 QM-07 <br /> Toluene 10.7 2.5 50.0 ND 21.5 64.3-125 113 20 QM-07 <br /> Surrogate:4-Bromofluorobenzene 50.3 50.0 101 81.9-128 <br /> Surrogate:Dibromofluoromethane 57.9 50.0 116 73-126 <br /> Surrogate:Toluene-d8 50.7 50.0 101 80.4-121 <br /> SunStar Laboratories,Inc. The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> 7 <br /> Rebecca Traficanto,Project Manager Page 89 of 90 <br />