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r F 1455 McDowell Blvd,North.Ste.D <br /> 4954 <br /> Sequoia <br /> �eq 7 oia <br /> Petaluma, <br /> 79291865 <br /> J®® r�L 14 FAX(707)792-0342 <br /> Analytical www.sequoialabs.com <br /> 0 IQF <br /> Cambria Environmental- Emeryville Project: Equiva <br /> 6262 Hollis Street Project Number: 341 East Main St,Ripon,Ca Reported: <br /> Emeryville CA,94608 Project Manager: Owen Ratchye 04/16/01 10:22 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015MI8020M - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1040308-EPA 5030,waters <br /> Matrix Spike Dup(1040308-MSDI) Source: P1O4262-03 Prepared&Analyzed:04/13/01 <br /> Gasoline 803 14.2 ppmv 780 ND 103 65-135 1.13 20 <br /> Benzene 13.2 0.157 10.0 NO 132 65-135 5.45 20 <br /> Toluene 58.5 0.133 51.3 ND 114 65-135 2.03 20 <br /> Ethylbenzene 12.4 0.115 10.6 ND 117 65-135 0.803 20 <br /> Xylenes(total) 61.6 0.115 53.3 ND 116 65-135 1.29 20 <br /> Methyl Cert-butyl ether 20.0 0.556 14.5 ND 138 65-135 1.01 20 QM-07 <br /> Surrogate:a,a,a-Trifluorotoluene 60.1 50.3 119 65-135 <br /> Surrogate:4-Bromojluorobenzene 43.8 41.9 105 65-135 <br /> quoia 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 6 <br />