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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: B025489 Used client sample: N <br /> Total Antimony DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 412.04 400.00 ug/L 103 75-125 <br /> MSD 1828976-02 ND 394.41 400.00 ug/L 4.4 98.6 20 75-125 <br /> Total Arsenic DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 192.50 200.00 ug/L 96.3 75-125 <br /> MSD 1828976-02 ND 191.45 200.00 ug/L 0.5 95.7 20 75-125 <br /> Total Barium DUP 1828976-02 169.26 165.54 ug/L 2.2 20 <br /> MS 1828976-02 169.26 558.11 400.00 ug/L 97.2 75-125 <br /> MSD 1828976-02 169.26 544.13 400.00 ug/L 2.5 93.7 20 75-125 <br /> Total Beryllium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 201.32 200.00 ug/L 101 75-125 <br /> MSD 1828976-02 ND 192.07 200.00 ug/L 4.7 96.0 20 75-125 <br /> Total Cadmium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 196.27 200.00 ug/L 98.1 75-125 <br /> MSD 1828976-02 ND 190.38 200.00 ug/L 3.0 95.2 20 75-125 <br /> Total Chromium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 197.70 200.00 ug/L 98.8 75-125 <br /> MSD 1828976-02 ND 189.91 200.00 ug/L 4.0 95.0 20 75-125 <br /> Total Cobalt DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 190.31 200.00 ug/L 95.2 75-125 <br /> MSD 1828976-02 ND 184.22 200.00 ug/L 3.3 92.1 20 75-125 <br /> Total Copper DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 359.68 400.00 ug/L 89.9 75-125 <br /> MSD 1828976-02 ND 343.46 400.00 ug/L 4.6 85.9 20 75-125 <br /> Total Lead DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 388.63 400.00 ug/L 97.2 75-125 <br /> MSD 1828976-02 ND 377.18 400.00 ug/L 3.0 94.3 20 75-125 <br /> Total Molybdenum DUP 1828976-02 34.727 34.680 ug/L 0.1 20 J <br /> MS 1828976-02 34.727 234.92 200.00 ug/L 100 75-125 <br /> MSD 1828976-02 34.727 227.19 200.00 ug/L 3.3 96.2 20 75-125 <br /> Total Nickel DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 395.18 400.00 ug/L 98.8 75-125 <br /> MSD 1828976-02 ND 374.95 400.00 ug/L 5.3 93.7 20 75-125 <br /> Total Selenium DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 185.72 200.00 ug/L 92.9 75-125 <br /> MSD 1828976-02 ND 181.99 200.00 ug/L 2.0 91.0 20 75-125 <br /> Total Silver DUP 1828976-02 ND ND ug/L 20 <br /> MS 1828976-02 ND 99.761 100.00 ug/L 99.8 75-125 <br /> MSD 1828976-02 ND 94.934 100.00 ug/L 5.0 94.9 20 75-125 <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 10 of 15 <br />