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hi } <br /> 819 Striker Avenue Suite 8 <br /> Sacramento CA 95834 <br /> Sequoia <br /> FAX()91692921-9600 <br /> 0100 <br /> 1WAnalytical www sequoialabs corn <br /> SECOR lntemational-Rancho Cordova Project TOSCO 11193,Stockton,CA <br /> 3017 Kilgore Road,Suite 100 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 12/17/01 14 16 <br /> Total Purgeable Hydrocarbon,BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1120132-EPA 5030B(PIT) <br /> Blank(1120132-BLKI) Prepared&Analyzed 12/08/01 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tart-butyl ether ND 25 " <br /> Surrogate a a a-Tri luorotoluene 930 100 930 60-140 <br /> LCS(1 120132-BS 1) Prepared&Analyzed 12/08/01 <br /> Benzene 960 050 ug/l 100 960 70-130 <br /> Toluene 983 050 100 983 70-130 <br /> Ethylbenzene 987 050 100 987 70-130 <br /> Xylenes(total) 274 050 300 91 3 70-130 <br /> Methyl tert-butyl ether 122 25 100 122 70-130 <br /> Surrogate a,a,a-Trifluorotoluene 936 100 936 60-140 <br /> LCS Dup(1120132-BSDI) Prepared&Analyzed 12/08/01 <br /> Benzene 982 050 ug/l 100 982 70-130 227 25 <br /> Toluene 100 050 100 100 70-130 171 25 <br /> Ethylbenzene 101 050 100 101 70-130 230 25 <br /> Xylenes(total) 279 050 300 93 0 70-130 181 25 <br /> Methyl tert-butyl ether 118 25 100 118 70-130 333 25 <br /> Surrogate a,a,a-Trrfluorotoluene 929 100 929 60-140 <br /> Batch 1120185-EPA 5030B(P/T) <br /> Blank(1120185-BLKI) Prepared&Analyzed 12/13/01 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether ND 25 " <br /> Surrogate a a a-Trifluorotoluene 104 100 104 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain ty oJ• <br /> custody document This analytical report must be reproduced in its entire <br /> Page Page 8 of 10 <br />