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1455 McDowell Blvd,Nortb,Ste.D <br /> Petaluma,CA 94954 <br /> 41) Sequoia (707)792-1865 <br /> FAX(707)792-0342 <br /> so Analytical www.segtioialabs.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 03/22/01 16:29 <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 1030330-EPA 5030,waters <br /> Blank(1030330-BLK1) prepared&Analyzed: 03/14/01 <br /> Gasoline ND 50.0 ug/l <br /> Benzene ND 0.500 " <br /> Toluene ND 0.500 " <br /> Etbylbenzene ND 0.500 " <br /> Xylenes(total) ND 0.500 <br /> Surrogate:a,a,a-Trifluorotoluene 317 300 106 65-135 <br /> Surrogate:4-Bromofluorobenzene 291 300 97.0 65-135 <br /> LCS(1030330-BSI) Prepared&Analyzed: 03/14/01 <br /> Gasoline 2350 50.0 ug/1 2750 85.5 65-135 <br /> 0,ne <br /> ene 34.5 0.500 32.0 108 65-135 <br /> 180 0.500 193 93.3 65-135 <br /> lbenzene 45.3 0.500 46.0 98.5 65-135 <br /> Xylenes(total) 220 0.500 231 95.2 65-135 <br /> Surrogate:a,a,a-Trifluorololuene 339 300 113 65-135 <br /> Surrogate.4-Bromofluorobenzene 310 300 103 65-135 <br /> Matrix Spike(1030330-MS1) Source: P103301-02 Prepared&Analyzed:03/14/01 <br /> Gasoline 2430 50.0 ug/l 2750 ND 88.4 65-135 <br /> Benzene 36.0 0.500 32.0 ND 113 65-135 <br /> Toluene 187 0.500 193 ND 96.7 65-135 <br /> Ethylbenzene 47.2 0.500 46.0 ND 103 65-135 <br /> Xylenes(total) 236 0.500 231 ND 102 65-135 <br /> Surrogate:a,a,a-Trifluorotoluene 342 300 114 65-13S <br /> Surrogate:4-Bromofluorobenzene 313 300 104 65-135 <br /> Matrix Spike Dup(1030330-MSD1) Source: P103301-02 Prepared&Analyzed:03/14/01 <br /> Gasoline 2450 50.0 ug/l 2750 ND 89.1 65-135 0.820 20 <br /> Benzene 35.6 0.500 32.0 ND 111 65-135 1.12 20 <br /> Toluene 187 0.500 " 193 ND 96.7 65-135 0 20 <br /> Ethylbenzene 47.0 0.500 46.0 ND 102 65-135 0.425 20 <br /> Xylenes(total) 235 0.500 231 ND 102 65-135 0.425 20 <br /> Surrogate:a,a,a-Trifluoratoluene 343 300 114 65-135 <br /> Surrogate:4-Bromofluorobenzene 315 300 105 65-135 <br /> AOL <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 7 <br /> ra <br />