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1455 McDowell Blvd.North,Ste,D <br /> Sequoia Pewuma,CA4954 <br /> (07)79291865 <br /> FAX(707)792-0342 <br /> .Analytical ,Nwwsequoialabs.com <br /> Cambria Environmental -Emeryville Project: Equiva <br /> 6262 Hollis Street Project Number: 341 East Main St,Ripon [reported: <br /> Emeryville CA,94608 Project Manager: Owen Ratchye 02/15/01 09:45 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015NU8020M -Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %RFC RPD <br /> Analyte Result Limit Units t.evel Result %REC Limits RPD Limit Notes <br /> Batch 1020153-EPA 5030,waters <br /> Matrix Spike Du (1020153-MSD1) Source: P102076_-01 Prepared&Analyzed: 02/07/01 <br /> Gasoline 3050 50.0 ug/1 2750 ND 110 65-135 0.658 20 <br /> Benzene 40.7 0.500 32.0 ND 127 65-135 0.245 20 <br /> Toluene 211 0.500 193 ND 109 65-135 0.475 20 <br /> Ethylbenzene 45.8 0.500 46.0 ND 99.6 65.135 1.32 20 <br /> Xylenes(total) 228 0.500 231 ND 98.7 65-135 0.440 20 <br /> Methyl tert-butyl ether 65.7 2.50 52.0 ND 126 65-135 7.47 20 <br /> Surrogate:a,a,a-Tris luorwoluene 320 300 107 65-135 <br /> Surrogate:4-Bromofluorobenzene 334 300 111 65-135 <br /> Batch 1020334-EPA 5030,waters <br /> ank(1020334-BLK1) _ Prepared&Analyzed:02/14/01 <br /> Tenoline ND 50.0 ug/l <br /> zene ND 0.500 <br /> Toluene ND 0.500 " <br /> Ethylbenzene ND 0.500 " <br /> Xylenes(total) ND 0.500 " <br /> Methyl tert-butyl ether ND 2.50 " <br /> Surrogate:a,a,a-Triuorotoluene 314 300 1135 65-135 <br /> Surrogate:4-Bromofluorobenzene 296 300 98.7 65-135 <br /> LC5(1020334-BSl) Prepared&Analyzed:02/14/01 <br /> Gasoline 2460 50.0 ug/i 2750 89.5 65-135 <br /> Benzene 37.5 0.500 32.0 117 65-135 <br /> Toluene 188 0.500 193 97.4 65-135 <br /> Ethylbenzene 45.4 0.500 46.0 98.7 65-135 <br /> Xylenes(total) 229 0.500 231 99.1 65-135 <br /> Methyl tert-butyl ether 69.9 2.50 52.0 134 65-135 <br /> Surrogate:a,a,a-Trifluorotoluene 349 300 116 65-135 <br /> Surrogate:4-BromoJluorobenzene 310 300 103 65-135 <br /> equoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical report must be reproduced in its entirety. <br /> Page 5 of 7 <br />