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nve <br /> '" i.^T 885 Jarvis D <br /> Sequoia MorganHtll CA 9503737 <br /> (408)776-9600 <br /> . ► Analytical FAX(408) 08 <br /> www sequoialabs.clabscom <br /> Secor-Rancho Cordova(ARCO) Project ARCO#4932,Stockton,CA MMJ0401 <br /> 3017 Kilgore Rd Suite 100 Project Number 38984 Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 11/06/03 08 05 <br /> Purgeable Hydrocarbons (C6-C10) & Volatile Organic Compounds by EPA method 8260B- Quality Control <br /> Sequoia Analytical- Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Lunt Notes <br /> Batch 3J23005-EPA 5030B Modified <br /> I <br /> Blank(3J23005-BLKI) Prepared&Analyzed 10/23/03 <br /> Benzene ND 050 ug/l <br /> Toluene ND 050 " <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 050 " <br /> Gasoline Range Organics ND 50 0-09 <br /> Surrogate 1,2 Dichloroethane-d4 5 85 500 117 78-129 <br /> Laboratory Control Sample(3J23005-BSI) Prepared&Analyzed 10/23/03 <br /> Bctizene 895 050 ugll 100 895 78-124 <br /> Toluene 962 050 100 962 78-129 <br /> Ethylbenzene 103 050 100 103 84-117 —" <br /> Xylenes(total) 303 050 300 101 83-125 <br /> Surrogate 12 Drchloroethane-d4 504 500 101 78-129 <br /> Laboratory Control Sample(3J23005-BS2) Prepared&Analyzed 10/23/03 <br /> Benzene 548 050 ug/l 648 84 6 78-124 <br /> Toluene 334 050 297 112 78-129 <br /> Ethylbenzene 833 050 720 116 84-117 <br /> Xylenes(total) 41 6 050 33 7 123 83-125 <br /> Gasoline Range Organics 494 50 " 440 112 70-113 0-09 <br /> Surrogate 1,2-Drchloroethane-d4 6 12 300 122 78-129 <br /> Laboratory Control Sample Dup(3J23005-ESDI) Prepared 10/23/03 Analyzed 10/24/03 <br /> Benzene 976 0 50 ug/1 100 97 6 78-124 8 66 12 <br /> Toluene 103 050 10 0 103 78-129 6 83 10 <br /> Ethylbenzene 107 050 10 0 107 84-117 3 81 10 <br /> Xylenes(total) 322 0 50 30 0 107 83-125 608 11 <br /> Surrogate 1 2-Drchloroethane-d4 560 500 112 78-129 <br /> Sequoia Analytical -Morgan Hill The results in 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 /> 11 of 21 <br />