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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geological Technics Reported: 01/28/2013 10:19 <br /> 1172 Kansas Avenue Project: Georges Service <br /> Modesto,CA 95354 Project Number: 425.2 <br /> Project Manager: Project Manager <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID: BWA1558 <br /> Benzene BWA1558-851 LCS 20.880 25.000 ug/L. 83.5 70-130 <br /> Toluene BWA1558-BS7 LCS 22.080 25.000 ug/L _06.3 70-13 <br /> 1,2.Dichloroethane-d4(Surrogate) BWA1558-BSI LCS 10.230 10.000 uglL 102 75-125-- <br /> Toluene-dB(Surrogate) <br /> 5-125Toluene-d8(Surrogate) BWA155"St LCS 9.8000 10.000 ugii. 96.0 80-120 <br /> 4-Bromo0uorobenzene tSunogala) BWA1558-BS1 LCS 10.190 10.000 ug/L 102 80-120 _ <br /> The resnla in this repos apply fu Are mnryles mur(s'.ed in ur[a'dm¢e ndl/r the chain o/cussoAy docurnem.Thin nalyficul oworr must be reproduced in its emi'Wy. <br /> All rcm6s usl'd in chis rcWn srt f."I"esdnsivc nsc of nc�snMniuing Oany.aC Wbaraoria.me.wsnmcs no msporsbiliry fw r yon almreriun.ttpanrian.Jemdnncm onbird p+ny inmryrcueon. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 v vrw.bclabs.cam Page 12 of 14 <br />