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Laboratories Inc. � �_ <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis, Inc. Reported: 04/02/2019 15:06 <br /> 1172 Kansas Avenue Project: Woolsey-Lodi <br /> Modesto,CA 95351 Project Number: 156 <br /> Project Manager: Project Manager <br /> Total Petroleum Hydrocarbons <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: B041642 Used client sample: N <br /> Diesel Range Organics(C12-C24) MS 1906520-84 ND 374.80 500.00 ug/L 75.0 50-120 <br /> MSD 1906520-84 ND 283.06 500.00 ug/L 27.9 56.6 30 50-120 <br /> Tetracosane(Surrogate) MS 1906520-84 ND 17.211 20.000 ug/L 86.1 40-140 <br /> MSD 1906520-84 ND 10.629 20.000 ug/L 47.3 53.1 40-140 <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: 1000869861 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 22 of 23 <br />