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' PRECISIOO <br /> ENVIRO-TECH <br /> Analytical Laboratory <br /> CERTIFICATE OFANAL YSIS <br /> ' Friday, December 17, 2004 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. <br /> ' 2825 Myrtle St. Report Page 5 of 6 <br /> Stockton, CA 95205 <br /> ' Total Petroleum Hydrocarbons-Diesel Range- Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AL41706-EPA 5030 Soil MS <br /> Blank(AL41706-BLKI) Prepared&Analyzed: 17-Dec-04 <br /> TPH-Diesel ND 100 ug/kg <br /> 'LCS(AL41706-BS1) Prepared&Analyzed: 17-Dec-04 <br /> TPH-Diesel 9480 100 ug/kg 10000 95 75-125 <br /> Matrix Spike(A-L41706-MSI) Source:4121609-01 Prepared&Analyzed: 17-Dec-04 <br /> 'TPH-Diesel 11000 100 ug/kg 10000 0.00 110 75-125 <br /> Matrix Spike Dup(AL41706-MSD1) Source:4121609-01 Prepared&Analyzed: 17-Dec-04 <br /> TPH-Diesel 10500 100 ug/kg 10000 0.00 105 75-125 5 20 <br /> 1 <br /> 1 <br /> mg/L=milligrams per Liter=ppm DLR=Detection Limit 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 /> ��J/� <br /> 01, <br /> 'Jonathan Le,Laboratory Director <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8105 Fax: (209) 477-8148 <br />