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SunStar 25712 Commercentre Drive <br /> Laboratories, Inc. Lake Forest,California 92630 <br /> 949.297.5020 Phone <br /> I PH[]V1 U11•Li QUAL1rY ANALY'1'1 CAL SERVICES NAIUM'WIDE <br /> 949.297.5027 Fax <br /> Partner Engineering&Science,Inc.--Tor Project: Lakewood Plaza <br /> 2154 Torrance Blvd.,Suite 200 Project Number: 23-400162.14 Reported: <br /> Torrance CA,90501 Project Manager: Michel Helen 07/13/23 15:48 <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 23GO133-EPA 5035 GCMS <br /> Blank(23G0133-BLK1) Prepared&Analyzed:07/12/23 <br /> 1,2,3-Trichloropropane ND 0.0025 mg/kg <br /> 1,3,5-Trimethylbenzene ND 0.0025 <br /> 1,2,4-Trimethylbenzene ND 0.0025 <br /> Vinyl chloride ND 0.0025 <br /> Benzene ND 0.0025 <br /> Toluene 0.000450 0.0025 J <br /> Ethylbenzene ND 0.0025 <br /> m,p-Xylene ND 0.0050 <br /> o-Xylene ND 0.0025 <br /> Acetone ND 0.0025 <br /> Methyl ethyl ketone ND 0.0050 <br /> Methyl isobutyl ketone ND 0.0050 <br /> 2-Hexanone(MBK) ND 0.0025 <br /> Surrogate:Toluene-& 0.0509 0.0500 102 76.1-127 <br /> Surrogate:4-Bromofluorobenzene 0.0476 0.0500 95.3 85.9-114 <br /> Surrogate:Dibromofluoromethane 0.0561 0.0500 112 77.8-142 <br /> LCS(23G0133-BS1) Prepared&Analyzed:07/12/23 <br /> Chlorobenzene 0.0488 0.0025 mg/kg 0.0500 97.7 79.1-117 <br /> 1,1-Dichloroethene 0.0564 0.0025 0.0500 113 68-126 <br /> Trichloroethene 0.0460 0.0025 0.0500 92.0 80.6-119 <br /> Benzene 0.0503 0.0025 0.0500 101 79.1-117 <br /> Toluene 0.0517 0.0025 0.0500 103 79.5-118 <br /> Surrogate:Toluene-& 0.0511 0.0500 102 76.1-127 <br /> Surrogate:4-Bromofluorobenzene 0.0510 0.0500 102 85.9-114 <br /> Surrogate:Dibromofluoromethane 0.0555 0.0500 111 77.8-142 <br /> LCS Dup(23G0133-BSD1) Prepared&Analyzed:07/12/23 <br /> Chlorobenzene 0.0480 0.0025 mg/kg 0.0500 96.1 79.1-117 1.69 20 <br /> 1,1-Dichloroethene 0.0545 0.0025 0.0500 109 68-126 3.43 20 <br /> Trichloroethene 0.0431 0.0025 0.0500 86.2 80.6-119 6.49 20 <br /> Benzene 0.0482 0.0025 0.0500 96.4 79.1-117 4.30 20 <br /> Toluene 0.0491 0.0025 0.0500 98.1 79.5-118 5.16 20 <br /> Surrogate:Toluene-& 0.0503 0.0500 101 76.1-127 <br /> Surrogate:4-Bromofluorobenzene 0.0515 0.0500 103 85.9-114 <br /> Surrogate:Dibromofluoromethane 0.0551 0.0500 110 77.8-142 <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 /> Joann Marroquin,Director of Operations Page 15 of 23 <br />