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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday, March 31, 2009 <br /> Attention: James Robinson <br /> JR Squared Consulting Report Page 3 of <br /> 6532 Meneil Ct <br /> Valley Springs, CA 95252 <br /> EDB and DBCP by EPA Method 504.1 - Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %R1-:C Limits KPD Limit Notes <br /> Batch AC93001 -Solvent Extraction <br /> Blank(AC93001-BLKI) Prepared&Analyzed:30-Mar-09 <br /> 1,2-Dibromo-3-chloropropane ND 0.0200 ugA <br /> 1,2-Dibromoethane(EDB) ND 0.0100 " <br /> LES(AC93001-BSI) Prepared&Analyzed:30-Mar-09 <br /> 1,2-Dibromo-3-chloropropane 0.0817 0.0200 ugh 0.0735 111 75-125 <br /> 1,2-Dibromoethane(EDB) 0.0829 0-0100 " 0.0735 113 75-125 <br /> Matrix Spike(AC93001-MSI) Source:9032410-01 Prepared&Analyzed:30-Mar-09 <br /> 1,2-Dibromo-3-chlompropane 1.06 0.0200 ugJl 0.0735 1.00 88 75-125 <br /> 1,2-Dibromoethane(EDB) 0.0848 0.0100 " 0.0735 ND 115 75-125 <br /> Matrix Spike Dug(AC93001-MSDI) Source:9032410-01 Prepared&Analyzed:30-Mar-09 <br /> 1,2-Dibromo-3-chioropropane 1.07 0.0200 ugh 0.0735 1.00 96 75-125 0.6 20 <br /> 1,2-Dibromoethane(EDB) 0.0868 0.0100 0.0735 ND 118 75-125 2 20 <br /> mgiL-milligrams per Liler=ppm DLR=Detection limit for Purpose of Reporting. <br /> uVE=micrograms per Liter=ppb Exceptional sample matrices or Interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> (�51011re� <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 Dhone: (209) 477-8105 Fax: (209) 546-7497 <br />