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�_ ZceAnalytrcal m <br /> I ENVIRONMENTAL SCIENCES <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 /> 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: B143222 Used client sample: Y-Description: P-6, 06/30/2022 12:25 <br /> Lead DUP 2215185-01 7.5615 7.6655 mg/kg 1.4 20 J <br /> MS 2215185-01 7.5615 99.578 100.00 mg/kg 92.0 75-125 <br /> MSD 2215185-01 7.5615 99.529 100.00 mg/kg 0.0 92.0 20 75-125 <br /> The re.ru6s in thtx report app(v to the sampler analy_ed in accordance with the chain r f c usiodv doctunew.This analc»cal report mrat he reproduced in av 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 parry interpretation. <br /> Report ID: 1001323091 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 22 of 23 <br />