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_2eAnalytical rn <br /> Eq'i ltiDNMENThI SCIE NC Eu <br /> I <br /> Kleinfelder,Inc.-Rancho Cordova Reported: 07/06/2022 9:51 <br /> 2882 Prospect Park,Suite 200 Project: Tracy Costco UST Removal <br /> Rancho Cordova,CA 95670 Project Number: 20223491.001A <br /> Project Manager: Paolo Dizon <br /> Volatile Organic Analysis (EPA Method 826013/5035) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID: B143200 <br /> Benzene 8143200-BS1 LCS 0.12294 0.12500 mg/kg 98.4 70-130 <br /> Bromodichloromethane B143200-BSI LCS 0.12640 0.12500 mg/kg 101 70-130 <br /> Chlorobenzene B143200-BS1 LCS 0.12840 0.12500 mg/kg 103 70-130 <br /> Chloroethane B143200-BS1 LCS 0.14151 0.12500 mg/kg 113 70-130 <br /> 1,4-Dichlorobenzene B143200-BS1 LCS 0.13025 0.12500 mg/kg 104 70-130 <br /> 1,1-Dichloroethane B143200-BS1 LCS 0.12367 0.12500 mg/kg 98.9 70-130 <br /> 1,1-Dichloroethene B143200-BSI LCS 0.12465 0.12500 mg/kg 99.7 70-130 <br /> Toluene B143200-BS1 LCS 0.12729 0.12500 mg/kg 102 70-130 <br /> Trichloroethene 8143200-BSI LCS 0.13016 0.12500 mg/kg 104 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) 8143200-BS1 LCS 0.046310 0.050000 mg/kg 92.6 70-121 <br /> Toluene-d8(Surrogate) B143200-BS1 LCS 0.049480 0.050000 mg/kg 99.0 81-117 <br /> 4-Bromofluorobenzene(Surrogate) B143200-BS1 LCS 0.050980 0.050000 mg/kg 102 74-121 <br /> The resulls in this report apply to the samples analy_ed in accordance with the chain ojcusmdy document.T his analylical report nuesi he reproduced in as entirety. <br /> All results listed in this report are for die exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> ReportID: 1001323091 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 18 of 23 <br />