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� Y <br /> 1455 McDowell Blvd.North,Ste.D <br /> Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> FAX <br /> 7)792-0342 <br /> wwwsequoialabs m <br /> o <br /> Analytical <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 02/12/01 17:31 <br /> Total Petroleum Hydrocarbons as Gasoline by EPA 8015M - 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 1020120-EPA 5030,waters <br /> Blank(1020120-BLKI) Prepared&Analyzed:02/06/01 <br /> Gasoline ND 50.0 ug/l <br /> Surrogate:4-Bromofluorobenzene 301 300 101 65-135 <br /> Blank(1020120-BLK2) Prepared&Analyzed:02/07/01 <br /> Gasoline ND 50.0 ug/1 <br /> Surrogate:4-Bromofluorobenzene 301 300 101 65-135 <br /> LCS(1020120-BSI) Prepared&Analyzed:02/06/01 <br /> Gasoline 2660 50.0 ug/l 2750 96.7 65-135 <br /> Surrogate:4-Bromofluorobenzene 311 300 104 65-135 <br /> LCS(1020120-BS2) Prepared&Analyzed:02/07/01 <br /> Gasoline 2610 50.0 ug/l 2750 94.9 65-135 <br /> Surrogate:4-Bromofluorobenzene 318 11300 106 65-135 <br /> Matrix Spike(1020120-MS1) Source: P102088-08 Prepared&Analyzed:02/06/01 <br /> Gasoline 2760 50.0 ug/l 2750 ND 100 65-135 <br /> Surrogate:4-Bromofluorobenzene 311 11300 107 65-135 <br /> Matrix Spike Dup(1020120-MSD1) Source: P102088-08 Prepared&Analyzed:02/06/01 <br /> Gasoline 2810 50.0 ug/l 2750 ND 102 65-135 1.80 20 <br /> Surrogate:4-Bromofluorobenzene 313 300 108 65-135 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document. This analytical report must be reproduced in its entirety. <br /> Page 5 of 9 <br />