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_ Z' Analytical <br /> ENVIRONMENTAL SCIENCES <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 /> Total Concentrations (TTLC) <br /> BCL Sample ID: 2215185-02 Client Sample Name: P-7,6/30/2022 12:30:OOPM <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Qualls DCN <br /> Lead 8.2 mg/kg 12 2.0 EPA-6010B ND J,A10 1 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-60108 07/01/22 18:00 07/05/22 15:11 JRG PE-OP4 5 B143222 EPA 3050B <br /> DCN=Data Continuation Number <br /> The resutty in dtiv report upp(v to rhe.samples onuly.:ed in acc•ordunce with the chain of cu.vfody dacument.This enja4tica/repon ntuvi he reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting parry. 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 14 of 23 <br />