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7r=V5L <br /> Laboratories Inc. , <br /> Environmental Testing Laboratory Since 1949 <br /> Enviro Tech Consultants, Inc. Reported: 09/26/2018 15:45 <br /> 5400 Rosedale Highway Project: Sump Remediation <br /> Bakersfield,CA 93308 Project Number: COL108 Soil Remediation <br /> Project Manager: Kelsey Padilla <br /> Metals Analysis <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: 8025489 Used client sample: N <br /> Total Thallium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 397.54 400.00 ug/L 99.4 75-125 <br /> MSD 1828976-02 ND 389.63 400.00 ug/L 2.0 97.4 20 75-125 <br /> Total Vanadium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 204.85 200.00 ug/L 102 75-125 <br /> MSD 1828976-02 ND 195.19 200.00 ug/L 4.8 97.6 20 75-125 <br /> Total Zinc DUP 1828976-02 1106.3 1099.9 ug/L 0.6 20 <br /> MS 1828976-02 1106.3 1568.5 500.00 ug/L 92.4 75-125 <br /> MSD 1828976-02 1106.3 1524.6 500.00 ug/L 2.8 83.7 20 75-125 <br /> QC Batch ID: B025492 Used client sample: N <br /> Total Mercury DUP 1829573-01 ND ND ug/L 20 <br /> MS 1829573-01 ND 0.92250 1.0000 ug/L 92.2 70-130 <br /> MSD 1829573-01 ND 0.92250 1.0000 ug/L 0 92.2 20 70-130 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1000797432 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 11 of 15 <br />