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t1cc Ant-7lytical <br /> E NVIRDNMENTAL SCIENCES <br /> Kleinfelder,Inc.-Rancho Cordova Reported: 06/21/2022 14:57 <br /> 2882 Prospect Park,Suite 200 Project: Tracy Costco UST Removal <br /> Rancho Cordova,CA 95670 Project Number: 20223491.00A <br /> Project Manager: Paolo Dizon <br /> Volatile Organic Analysis (EPA Method 826013) <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: 8142302 <br /> Benzene 8142302-BSI LCS 22.930 25.000 ug/L 91.7 70-130 <br /> B142302-BSD1 LCSD 22.160 25.000 ug/L 88.6 3.4 70-130 20 <br /> Bromodichloromethane B142302-BS1 LCS 27.190 25.000 ug/L 109 70-130 <br /> B142302-BSD1 LCSD 26.190 25.000 ug/L 105 3.7 70-130 20 <br /> Chlorobenzene B142302-BS1 LCS 24.940 25.000 ug/L 99.8 70-130 <br /> B142302-BSD1 LCSD 24.070 25.000 ug/L 96.3 3.6 70-130 20 <br /> Chloroethane B142302-BS1 LCS 23.520 25.000 ug/L 94.1 70-130 <br /> B142302-BSD1 LCSD 22.120 25.000 ug/L 88.5 6.1 70-130 20 <br /> 1,4-Dichlorobenzene B142302-BS1 LCS 26.770 25.000 ug/L 107 70-130 <br /> B142302-BSD1 LCSD 25.720 25.000 ug/L 103 4.0 70-130 20 <br /> 1,1-Dichloroethane B142302-BSI LCS 23.570 25.000 ug/L 94.3 70-130 <br /> B142302-BSD1 LCSD 22.360 25.000 ug/L 89.4 5.3 70-130 20 <br /> 1,1-Dichloroethene 8142302-BS1 LCS 23.540 25.000 ug/L 94.2 70-130 <br /> B142302-BSD1 LCSD 22.240 25.000 ug/L 89.0 5.7 70-130 20 <br /> Toluene B142302-BS1 LCS 26.250 25.000 ug/L 105 70-130 <br /> B142302-BSD1 LCSD 25.020 25.000 ug/L 100 4.8 70-130 20 <br /> Trichloroethene B142302-BSI LCS 26.040 25.000 ug/L 104 70-130 <br /> B142302-BSD1 LCSD 25.090 25.000 ug/L 100 3.7 70-130 20 <br /> 1,2-Dichloroethane-d4(Surrogate) B142302-BS1 LCS 8.4400 10.000 ug/L 84.4 75-125 <br /> B142302-BSD1 LCSD 8.5900 10.000 ug/L 85.9 1.8 75-125 <br /> Toluene-d8(Surrogate) 8142302-BS1 LCS 9.8000 10.000 ug/L 98.0 80-120 <br /> B142302-BSD1 LCSD 9.7700 10.000 ug/L 97.7 0.3 80-120 <br /> 4-Bromofluorobenzene(Surrogate) 8142302-BS1 LCS 9.7300 10.000 ug/L 97.3 80-120 <br /> B142302-BSDI LCSD 9.7000 10.000 ug/L 97.0 0.3 80-120 <br /> The results in this report apply to the.samples analyzed in accordance with the chain of custody document.This analytical report must he reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> ReportID: 1001318187 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 69 of 79 <br />