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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> E <br /> Project: Foothill LF,SJ County-5 year Reported: 09/03/2009 16:26 <br /> North Market Boulevard Project Number: 124591 <br /> mento,CA 95834 Project Manager: Sheila Richgels <br /> Organo-Phosphorus Pesticide Analysis (EPA Method 8141) <br /> Quality Control Report- Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units PQL MDL Lab Quals <br /> Dimethoate BSH1419 BSH1419-BLK1 ND ug/L 0.20 0.075 <br /> Disulfoton BSH1419 BSH1419-BLK1 ND ug/L 0.50 0.039 <br /> Methyl parathion BSH1419 BSH1419-BLK1 ND ug/L 0.20 0.074 <br /> Phorate A BSH1419 BSH1419-BLK1 ND ug/L 0.20 0.041 <br /> Thionazin BSH1419 BSH1419-BLK1 ND ug/L 0.20 0.041 <br /> Triphenylphosphate(Surrogate) BSH1419 BSH1419-BLK1 86.6 % 55-132 (LCL-UCL) <br /> The results in this report apply to the samples analysed in accordance with the chain ofcustody 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 /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 70 of 83 <br /> Certifications: California-ELAP Certification Num86; Nevada Administrative Code-NAC-445A is <br />