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(7) <br /> PREcjsroh <br /> ENMIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> t- Wednesday,April 6, 2005 <br /> : 1 <br /> Attention: Becky Haskett <br /> Feil O. Anderson &Associate Report Page 3of5 <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> r7 EDB and DBCP by EPA Method 504.1 - Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> h 1 Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AD50508-Solvent Extraction <br /> Blank(AD50508-BLKI) Prepared&Analyzed:05-Apr-05 <br /> 1,2-Dibromo-3-chloropropane ND 0.0200 ug/l <br /> 1,2-Dibromoethane(EDB) ND 0.0100 " <br /> `. LCS(AD50508-BS1) Prepared&Analyzed:05-Apr-05 <br /> e 1,2-Dibromo-3-ch2oropropane 0302 0.0200 ug/l 0-294 103 75-125 <br /> 1,2-Dibromoethane(EDB) 0.272 0.0100 0.294 93 75-125 <br /> Matrix Spike(AD50508-MSI) Source:5032813-01 Prepared: 05-Apr-05 Analyzed:06-Apr-05 <br /> 1,2-Dibromo-3-chloropropane 0.352 0.0200 ug/1 0.294 ND 120 75-125 <br /> 1,2-Dibromoethane(EDB) 0.326 0.0100 0.294 ND 111 75-125 <br /> r. <br /> 8 Matrix Spike Dup(AD50508-MSD1) Source:5032813-01 Prepared:05-Apr-05 Analyzed:06-Apr-05 <br /> 1,2-1)ibromo-3-chloropmpane 0.294 0.0200 ug/2 0.294 ND 100 75-125 18 20 <br /> 1,2-Dibromoethane(EDB) 0.306 0.0100 0.294 ND 104 75-125 6 20 <br /> s <br /> r <br /> �I <br /> i <br /> mg1L=milligrams per Liter=ppm DLR=Detection Limn for Purpose of Reporting. <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> i 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8105 Fax: (209) 477.8148 <br />