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_ - aceAnalytica! <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 /> Total Concentrations (TTLC) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: 13142314 Used client sample: N <br /> Lead DUP 2214204-19 12.989 12.740 mg/kg 1.9 20 <br /> MS 2214204-19 12.989 93.257 100.00 mg/kg 80.3 75-125 <br /> MSD 2214204-19 12.989 89.688 100.00 mg/kg 3.9 76.7 20 75-125 <br /> The results in this report apply to the.samples analyzed in occorchutce with the chain c f custmty document.This analytical report nucat he reproduced in ils 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 petty interpretation. <br /> ReportID: 1001318187 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 78 of 79 <br />