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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 23HO265-EPA 5030 GCMS <br /> LCS(23H0265-BS1) Prepared:08/18/23 Analyzed:08/19/23 <br /> Chlorobenzene 48.2 2.5 ug/kg 50.0 96.3 65.2-124 <br /> 1,1-Dichloroethene 48.5 2.5 50.0 96.9 60.9-131 <br /> Trichloroethene 47.9 2.5 50.0 95.7 62.1-126 <br /> Benzene 46.3 2.5 50.0 92.7 65.3-127 <br /> Toluene 48.7 2.5 50.0 97.4 64.3-122 <br /> Surrogate:4-Bromofluorobenzene 48.4 50.0 96.8 81.9-128 <br /> Surrogate:Dibromofluoromethane 46.2 50.0 92.4 73-126 <br /> Surrogate:Toluene-d8 51.0 50.0 102 80.4-121 <br /> Matrix Spike(23H0265-MS1) Source:T232341-01 Prepared:08/18/23 Analyzed:08/19/23 <br /> Chlorobenzene 43.3 2.5 ug/kg 50.0 ND 86.6 65.2-125 <br /> 1,1-Dichloroethene 42.3 2.5 50.0 ND 84.6 60.9-131 <br /> Trichloroethene 59.2 2.5 50.0 ND 118 62.1-126 <br /> Benzene 41.2 2.5 50.0 ND 82.4 65.3-127 <br /> Toluene 40.9 2.5 50.0 ND 81.8 64.3-125 <br /> Surrogate:4-Bromofluorobenzene 49.0 50.0 97.9 81.9-128 <br /> Surrogate:Dibromofluoromethane 48.4 50.0 96.8 73-126 <br /> Surrogate:Toluene-d8 48.4 50.0 96.7 80.4-121 <br /> Matrix Spike Dup(23H0265-MSDI) Source:T232341-01 Prepared:08/18/23 Analyzed:08/19/23 <br /> Chlorobenzene 38.7 2.5 ug/kg 50.0 ND 77.3 65.2-125 11.3 20 <br /> 1,1-Dichloroethene 44.2 2.5 50.0 ND 88.5 60.9-131 4.46 20 <br /> Trichloroethene 53.0 2.5 50.0 ND 106 62.1-126 11.1 20 <br /> Benzene 38.0 2.5 50.0 ND 75.9 65.3-127 8.16 20 <br /> Toluene 37.6 2.5 50.0 ND 75.3 64.3-125 8.23 20 <br /> Surrogate:4-Bromofluorobenzene 49.6 50.0 99.1 81.9-128 <br /> Surrogate:Dibromofluoromethane 49.0 50.0 98.1 73-126 <br /> Surrogate:Toluene-d8 48.6 50.0 97.1 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 83 of 90 <br />