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1 819 Stri7ccr Ave Ste 8 <br /> Sequoia Sacramento CA 95834 <br /> Analytical (916)921 9600 <br /> FAX(916)921-0100 <br /> www sequoialabs coin <br /> ' Geological Technics,Inc ProjectCardoza S412258 <br /> 1101 7th Street Project Number 662 2 Reported <br /> ' Modesto CA,95354 Project Marincr-Joseph Angulo 12/23/0412 28 <br /> Extractable Hydrocarbons by EPA 8015B -Quality Control <br /> ' <br /> Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Aaalytc Result Limit Units Level Result %REC Limns RPD Limit Notes <br /> ' Batch 4120168-EPA 3510C/EPA 8015B-SVOA <br /> Blank(4120168-BLK1) Prepared&Analyzed 12/14/04 <br /> Diesel Range Organics(C10-C28) ND 50 ug/l <br /> ' Surrogate Octacosane 177 200 88 50-150 <br /> Laboratory Control Sample(4120168-BS1) Prepared&Analyzed 12/14/04 <br /> Diesel Range Organics(CIO-C28) 411 50 ug/I 500 82 60-140 <br /> Surrogate Octacosane 189 200 94 50-150 <br /> Laboratory Control Sample Dn (4120168-BSD1) Prepared&Analyzed 12/14/04 <br /> Diesel Range Organics(CIO-C28) 380 50 ug/l 500 76 60-140 8 50 <br /> ' Surrogate Octacosane 178 200 89 50-150 <br /> Batch 4120187-EPA 3510C/EPA 8015B-SVGA <br /> Blank(4120187-BLKI) Prepared 12/15/04 Analyzed 12/16/04 <br /> iese!Range Organics(C10�28) ND 50 ug/l <br /> Surrogate Octacosane 769 200 84 50-150 <br /> ' Laboratory Control Sample(4120187-BSI) Prepared 12!15104 Analyzed 12/16/04 <br /> Diesel Range Organics(ClO-C28) 400 50 ug/I 500 80 60-140 <br /> Surrogate Octacosane 162 200 81 50-150 <br /> ' <br /> Laboratory Control Sample Dup(4120187-BSD1) Prepared 12/15/04 Analyzed 12/16/04 <br /> Diesel Range Organics(CIO-C28) 400 50 ug/l 500 80 60-140 0 50 <br /> Surrogate Octacosane 160 200 80 50-150 <br /> 1 <br /> I <br /> ' Sequoia Analytical-Sacramento The results to this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced In its entirety <br /> Page 9 of 13 <br /> 1 <br />