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404 H."get Lane <br /> CA 94598 <br /> Sequoia W `25 968-9600 <br /> FAX(925)%8-%73 <br /> Analytical www.seq .cm <br /> Gettler Ryan,Inc.-Dublin Project Chevron <br /> 6747 Sierra Court Suite 3 Project Number: Chevron#9-0557 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 30-Aug-0016:41 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source °/9REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch OR25003-EPA 5030B[PIT] <br /> Blank(OH25003-BLKI) Prepared&Analyzed:25-Aug-00 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzine ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Mdhyl tert-butyl ether ND 2.5 " <br /> Surrogate:aaa-7Vhororotuem 31.7 30.0 106 70.130 <br /> LCS(OH25003-BSJ) Prepared&Analyzed:25-Aug-00 <br /> Benzene 19.0 0.50 U84 20.0 95.0 70-130 <br /> TOluerW 19.1 0.50 20.0 95.5 70-130 <br /> ao 20.1 0.50 " 20.0 101 70-130 <br /> X (total) 57.6 0.50 60.0 96.0 70-130 <br /> Surrogate:a a a-7WJ1uorotoherae 19.2 30.0 97.3 70-130 <br /> Matrix Spike(OH25003-MS1) Source:W008394-01 Prepared&Analyzed:25-Aug-00 <br /> Benzene 20.6 0.50 ug/1 20.0 ND 103 70-130 <br /> Toluene 20.8 0.50 " 20.0 ND 104 70-130 <br /> Ethylbenzene 20.8 0.50 20.0 ND 104 70-130 <br /> Xylenes(total) 60.7 0.50 60.0 ND 101 70-130 <br /> Surrogate:a a a-TIr f uorotohene 2&0 3a 0 93.3 70-130 <br /> Matrix Spike Dup(0H25003-MM) Source:W008394-01 Prepared&Analyzed:25-Aug-00 <br /> Beuzme 19.3 0.50 U94 20.0 ND 91.5 70-130 11.8 20 <br /> TohMw 18.7 0.50 " 20.0 ND 93.5 70-130 10.6 20 <br /> Ethyftmmne 19.6 0.50 " 20.0 ND 98.0 70-130 5.94 20 <br /> Xytena(total) 56.9 0.50 60.0 ND 94.8 70-130 6.46 20 <br /> Surrogate.aaa•T7rifhorotoluene 27.3 30.0 91.0 70-130 <br /> la Analytical-WahnA{xeek The results in Ws report Wly to the awTles anafwa in awon* w wM thr elinin of <br /> custody docuonenr.T hfs analytical report must be repradwed in its endrery. <br /> Page 8 of 10 <br />