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1 <br /> — Laboratories <br /> Environmental Testing Laboratory Since 1949 <br /> ENorth <br /> ciates Reported: 03/26/2012 15:13 <br /> ' ison Ave,Suite 64 Project: 10013 <br /> hlands,CA 95660Project Number: [none] <br /> Project Manager: Gabe Stivala <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: BVC1842 Used client sample: N <br /> Diesel Range Organics(C12-C24) MS 1204254-01 ND 453.34 500.00 ug/L 90.7 36-130 <br /> MSD 1204254-01 ND 567.30 500.00 ug/L 22.3 113 30 36-130 <br /> Tetrawsane(Surrogate) MS 1204254-01 ND 17.781 20.000 ug/L 88.9 28-139 <br /> MSD 1204254-01 ND 20.878 20.000 ug/L 16.5 105 28-138 <br /> 1 <br /> 1 <br /> 1 <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 entirely. <br /> All resins Ronda,Nis repos are for the esclvsive..of thesubmitting parry. Be lsbmatories,Inc.assumes no responsibility for report e9emtiou,separation,detachment or third any interpraintim <br /> ' 4100 Atlas Court Bakersfield,CA 93308 (661)3274911 FAX(661)327-1918 w .bclabs.wm Page 87 of 88 <br />