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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue.Suite 8 Sacramento,CA 95834 (916)92t-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd. North.Ste. D Petaluma.CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> Blaine Tech Services Client Proj. ID: Chevron 9-0557/980730-K1 Sampled: 07/30/98 <br /> '1 1680 Rogers Avenue Sample Descript: MW2 Received: 07/31/98 <br /> San Jose, CA 95112 Matrix: LIQUID <br /> Analysis Method: 8015Mod/8020 Analyzed: 08/03/98 <br /> Attention: Fran Thi -02 ii! <br /> ::::::::::::�::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::�:�::.e Lab Number: 9807163.....................---� ... Re orted: 08 18 9 <br /> QC Batch Number: GCO80398802009A <br /> Instrument ID: HP-9 <br /> Tota[ Purgeabie Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N.D. <br /> Methyl t-Butyl Ether .................... 2.56.0 <br /> Benzene 0.50 .................... 4.2 <br /> Toluene ..........•....... 0.50 0.59 <br /> Ethyl Benzene 0.50 N.D. <br /> Xylenes (Total) 0.50 0.97 <br /> Chromatogram Pattern: <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 100 <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> Gregory <br /> ject Manager Page: 2 <br />