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_-Pace Analytical rn <br /> ENVIRONMENTAL SCIENCES <br /> I <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 - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: B142302 <br /> Benzene B142302-BLK1 ND ug/L 0.50 0.083 <br /> Bromobenzene B142302-BLK1 ND ug/L 0.50 0.13 <br /> Bromochloromethane B142302-BLK1 ND ug/L 0.50 0.24 <br /> Bromodichloromethane B142302-BLK1 ND ug/L 0.50 0.14 <br /> Bromoform B142302-BLK1 ND ug/L 0.50 0.27 <br /> Bromomethane 8142302-BLK1 ND ug/L 1.0 0.25 <br /> n-Butylbenzene B142302-BLK1 ND ug/L 0.50 0.11 <br /> seo-Butylbenzene B142302-BLK1 ND ug/L 0.50 0.15 <br /> tert-Butylbenzene B142302-BLK1 ND ug/L 0.50 0.13 <br /> Carbon tetrachloride B142302-BLK1 ND ug/L 0.50 0.18 <br /> Chlorobenzene B142302-BLK1 ND ug/L 0.50 0.093 <br /> Chloroethane B142302-BLK1 ND ug/L 0.50 0.14 <br /> Chloroform B142302-BLK1 ND ug/L 0.50 0.12 <br /> Chloromethane B142302-BLK1 ND ug/L 0.50 0.14 <br /> 2-Chlorotoluene B142302-BLK1 ND ug/L 0.50 0.20 <br /> 4-Chlorotoluene B142302-BLK1 ND ug/L 0.50 0.15 <br /> Dibromochloromethane B142302-BLK1 ND ug/L 0.50 0.13 <br /> 1,2-Dibromo-3-chloropropane B142302-BLK1 ND ug/L 1.0 0.44 <br /> 1,2-Dibromoethane B142302-BLK1 ND ug/L 0.50 0.16 <br /> Dibromomethane B142302-BLK1 ND ug/L 0.50 0.24 <br /> 1,2-Dichlorobenzene B142302-BLK1 ND ug/L 0.50 0.072 <br /> 1,3-Dichlorobenzene B142302-BLK1 ND ug/L 0.50 0.15 <br /> 1,4-Dichlorobenzene 8142302-BLK1 ND ug/L 0.50 0.062 <br /> Dichlorodifluoromethane B142302-BLK1 ND ug/L 0.50 0.099 <br /> 1,1-Dichloroethane B142302-BLK1 ND ug/L 0.50 0.11 <br /> 1,2-Dichloroethane B142302-BLK1 ND ug/L 0.50 0.17 <br /> 1,1-Dichloroethene B142302-BLK1 ND ug/L 0.50 0.18 <br /> cis-1,2-Dichloroethene B142302-BLK1 ND ug/L 0.50 0.085 <br /> trans-1,2-Dichloroethene B142302-BLK1 ND ug/L 0.50 0.15 <br /> Total 1,2-Dichloroethene B142302-BLK1 ND ug/L 1.0 0.23 <br /> 1,2-Dichloropropane B142302-BLK1 ND ug/L 0.50 0.13 <br /> 1,3-Dichloropropane B142302-BLK1 ND ug/L 0.50 0.086 <br /> 2,2-Dichloropropane B142302-BLK1 ND ug/L 0.50 0.13 <br /> 1,1-Dichloropropene B142302-BLK1 ND ug/L 0.50 0.085 <br /> the results in thix report upply to the samples caraly_ed iu acconlance a-iih the chain of custody document.phis analytical report inns!be reproduced in itr entitrty. <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 /> Report ID: 1001318187 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 66 of 79 <br />