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Laboratories, Inc. <br /> �t� <br /> r <br /> Environmental Testing Laboratory Since 1949 <br /> Stantec Reported: 03/22/2011 11:29 <br /> 3475 W.Shaw Avenue,Suite 104 Project: Calpines <br /> Fresno,CA 93711 Project Number: [none] <br /> Project Manager: Ralph Carson <br /> Volatile Organic Compounds by GC/MS (EPA Method TO-15) <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: BUC1317 <br /> p-B m-Xylenes BUC1317-BS1 LCS 97.594 86.843 ug/m3 112 70-130 <br /> BUC1317-BSDI LCSD 82.318 86.843 ug/m3 106 5.6 70-130 30 <br /> a-Xylene BUC1317-BS1 LCS 50.238 43.421 ug1m3 116 70-130 <br /> BUC1317-BSD1 LCSD 46.769 43.421 ug/m3 108 7.2 70-130 30 <br /> Total Xylenes BUC1317-BS1 LCS 147.83 130.26 ug/m3 113 70-130 <br /> SUC1317-BS01 LCSD 138.09 130.26 ug/m3 107 6.1 70-130 30 <br /> 4-Bromofiuorobenzene(Surrogate) BUC1317-BS1 LCS 72.204 71.574 ug/m3 101 70-130 <br /> BUC1317-BSD1 LCSD 68.740 71.574 ug/m3 96.0 4.9 70-130 <br /> Ili,...toIn rhb report apply to rhe 1umple1 analyzed m accordance with rhe chain of.ody doevment./hi,analyucd relx.rr mua he reproduced in hs enrirery. <br /> All results listed m thn rryort ere for the udusi.e Use of the submininy Arty. BC Labomtmies,Inc.assumes no respomibdo,for re on alnunoton,reparation,dmehment m Third perry oucrprcabrin. <br /> 4100 Atlas Court Bakersfield CA 93308 (661)327-4911 FAX(661)327-1918 ..brAabscorn Page 35 of 36 <br />