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819 Striker Avenue,Suite 8 <br />• Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> �,,,�► Analytical <br /> FAX(9 u 9abs.co2 1 0 <br /> vvww.sequolaEabs.com <br /> laine Tech Services, Inc. Project: Equiva,620 W. Charter Way, Stockton,CA <br /> 1680 Rogers Avenue Project Number: 01021542 Reported: <br /> San Tose CA,95112-1105 Project Manager: Mick Sudattu 03/09/01 09.32 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD limit Notes <br /> Batch 1020261 -EPA 5030B (P <br /> Blank(1020261-BLK1) Prepared&Analyzed:02/22/01 <br /> Purgeable Hydrocarbons ND 50.0 Ug/1 <br /> Benzene 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-Trifluorololuene_- 10.2 - — 10.0 102 60-140 - --� <br /> LCS(3020261-BSI) Prepared&Analyzed:02/22/01 <br /> Benzene 9.26 0.500 ug/l 10.0 92.6 70-130 <br /> Toluene 9.62 0.500 10.0 96.2 70-130 <br /> Ethylbenzene 9.93 0.500 10.0 99.3 70-130 <br /> Xylenes(total) 30.5 0.500 30.0 102 70-130 <br /> W.thyl tert�buty]ether -- 9.22 -_ 2_50 _ 10.0- _— 92.2 70-130 --_ <br /> Surrogate:a,a,a-Tris luorotoluene 10.1 10.0 101 60-140 <br /> Batch 1020263-EPA 5030E <br /> Blank(1020263—BLKI) - Prepared&Analyzed:02/23/01^ - <br /> Purgeable Hydrocarbons ND 50.0 ug/1 <br /> Benzene 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-Tris luorotoluene 9.84 10.0 98.4 60-140 v <br /> Sequoia Analytical- Sacramento 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 9 of 14 <br />