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Laboratories Inc. I <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Project: Foothill LF,SJ County-5 year Reported: 09/03/2009 16:26 <br /> 1326 North:Market Boulevard Project Number: 124591 <br /> SacramentA 95834 Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report- Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units PQL MDL Lab Quals <br /> Acrylonitrile BSH1014 BSH1014-BLK1 NO ug/L 5.0 1.5 <br /> Allyl chloride BSH1014 BSH1014-BLK1 NO ug/L 5.0 0,42 <br /> Carbon disulfide BSH1014 BSH1014-BLK1 NO ug/L 1.0 0.40 <br /> Chloroprene BSH1014 BSH1014-BLK1 NO ug/L 5.0 0.27 <br /> trans-1,4-Dichloro-2-butene BSH1014 BSH1014-BLK1 NO ug/L 5.0 1.4 <br /> Ethyl methacrylate BSH1014 BSH1014-BLK1 NO ug/L 4.0 1.0 <br /> 2-Hexanone BSH1014 BSH1014-BLK1 NO ug/L 10 2.9 <br /> Isobutanol BSH1014 BSH1014-BLK1 ND ug/L 20 13 <br /> Methacryionitrile BSH1014 BSH1014-BLK1 NO ug/L 10 3.1 <br /> Methyl ethyl ketone BSH1014 BSH1014-BLK1 NO ug/L 10 2.4 <br /> Methyl iodide BSH1014 BSH1014-BLK1 NO ug/L 2.0 0.42 <br /> Methyl isobutyl ketone BSH1014 BSH1014-BLK1 NO ug/L 10 3.4 <br /> -------------- —- - — - -— --- -- -.. - -- ----------- - - ------ - -- - ---- -- <br /> Methyl methacrylate SSH1014 BSH1014-BLK1 NO ug/L 5.0 1.6 <br /> Propionitrile BSH1014 BSH1014-BLKI NO ug/L 20 13 <br /> Vinyl acetate BSH1014 BSH1014-BLK1 NO ug/L 10 2.4 <br /> 1,2-Dichloroethane-d4(Surrogate) BSH1014 BSH1014-BLK1 100 % 76-114 (LCL-UCL) <br /> Toluene-d8(Surrogate) BSH1014 BSH1014-BLK1 96.6 88-110 (LCL-UCL) <br /> 4-Bromofluorobenaene(Surrogate) BSH1014 BSH1014-BLK1 95.4 % 86-115 (LCL-UCL) <br /> The results in this report apply to the samples analyzed in accordance with the chain ofcustody document.This analytical report must be reproduced in its entirely. <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 /> 4100 Atlas Court Bakersfield,CA 93308 (661)327.4911 FAX(661)327-1918 www.belabs.com Page 74 of 83 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />