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a— ) <br /> Sequoia 8l,CA 95 Dr <br /> Morgan Hill,CA 45037 <br /> ` Anal FAX Analytical (408)776-(408)782-636308 <br /> 08 <br /> URS Comoration Project BP Heritage Site#11193,Stockton,CA ML10264 <br /> 500 12th Street,Suite 100 Project Number BP Heritage Site#11193,Stockton,CA Reported <br /> Oakland CA,94607 Project Manager Vern Elarth 09/18/02 12 37 <br /> Total Purgeable Hydrocarbons(C6-C10) by EPA 8015B modified-Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> lAnalxte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2112004-EPA 5030B [P/TI <br /> Matrix Spike(2112004-MSI) Source ML10264-09 Prepared&Analyzed 09/I2/02 <br /> Surrogate a a a-Trifluorotoluene 174 ug1l 100 174 70-130 QM-07 <br /> Matrix Spike Du 2112004-MSDl Source ML10264-09 Prepared&Analyzed 09/12/02 <br /> Gasoline Range Organics(C6-C10) 553 50 u9/1 550 ND 101 60-140 0 726 25 <br /> Surrogate aaa-Trifluorotoluene 169 100 169 70-130 QM-07 <br /> Batch 2I16002-EPA 5030B_[PI'I'] <br /> Blank 2I16002-BLKI) Prepared&Analyzed 09/16/02 <br /> Gasoline Range Organics(C6-C10) ND 50 ug/1 <br /> &rrogate a a a-Trifluorotoluene 964 100 964 70-130 <br /> Laboratory Control Sample(2I16002-BS2) Prepared&Analyzed 09/16/02 - <br /> Gasoline Range Organics(C6-CIO) 254 50 ug/I 250 102 70-130 <br /> Surrogate a a a-Trifluorotoluene 936 " 100 936 70-130 <br /> Matrix Spike 2116002-MS1 Source MLI0170-03 Prepared&Analyzed 09/16/02 <br /> Gasoline Range Organics(C6-C10) 499 50 ug/I 550 ND 907 60-140 <br /> Surrogate a a a-Trifluorotoluene 122 11100 122 70-130 <br /> Matrix Spike Du (2116002-MSDI) Source MLI0170-03 Prepared&Analyzed 09/16/02 <br /> Gasoline Range Organics(C6-C10) 480 50 1-19/1 550 ND 873 60-140 3 88 25 <br /> Surrogate a a a-Trifluorotoluene 102 100 102 70-130 <br /> Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document Unless otherwise slated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> 3I of 39 <br />