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rr <br /> .y <br /> 1455 McDowell Blvd.North,Ste.D <br /> A 94954 <br /> Sequoia Petaluma, 79 <br /> (707)792-1865-1865 <br /> FAX(707)792-0342 <br /> Analyticalwww.sequoiaiabs.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 03/09/01'14:16 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M18020M- 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=1030160--EPA=5030,-waters -- - <br /> Blank(1030160-BLK1) Prepared&Analyzed:03/07/01 <br /> Gasoline ND 50.0 ug/l <br /> Benzene ND 0.500 " <br /> Toluene ND 0.500 " <br /> Ethylbenzene ND 0.500 " <br /> Xylenes(total) ND 0.500 " <br /> Methyl tent-butyl ether ND 2.50 " <br /> Surrogate:a,a,a-Triuorotoluene 313 300 104 65-13S <br /> Surrogate:4-Bromoj7uorobenzene 288 300 96.0 6S-135 <br /> LCS(1030160-BS1) Prepared&Analyzed:03/07/01 <br /> Gasoline 2510 50.0 ug/l 2750 91.3 65-135 <br /> Benzene 38.8 0.500 32.0 121 65-135 <br /> Toluene 193 0.500 193 100 65-135 <br /> Ethylbenzene 47.6 0.500 46.0 103 65-135 <br /> Xylenes(total) 238 0.500 231 103 65-135 <br /> Methyl tert-butyl ether 56.0 2.50 IF52.0 108 65-135 <br /> Surrogate:a,a,a-Trlf7uorotoluene 357 IF 300 119 65-135 <br /> Surrogate:4-Bromofluarobenzene 311 IF <br /> 300 104 65-135 <br /> Matrix Spike(1030160-MS1) Source:P103117-01 Prepared&Analyzed:03/07/01 <br /> Gasoline 162000 2500 ugA 138000 29600 95.9 65-135 <br /> Benzene 2550 25.0 IF 1600 674 1 t7 65-135 <br /> Toluene 10800 25.0 9650 2510 85.9 65-135 <br /> Ethylbenzene 3520 25.0 2300 1100 105 65-135 <br /> Xylenes(total) 17300 25.0 11600 6810 90.4 65-135 <br /> Methyl tert-butyl ether 3150 125 IF2600 ND 121 65-135 <br /> Surrogate:a,a,a-Trifluorotoluene 349 IF 300 116 65-135 <br /> Surrogate:4:Bromofluorobenzene 317 IF 300 106 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 he reproduced in its entirety. <br /> ea Page 3 of 5 <br />