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/ \ 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> Sequoia <br /> 404 N Wiget lane Walnut Creek CA 94598 (925)988-%00 FAX(925)988-9673 <br /> •�,,,� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (707) 792 1800 FAX(707) 79 0300 <br /> 1455 McDowell Bivd North Ste d Petaluma.CA 94954 (707) 792 I$b5 FAX(707) 792-0342 <br /> Blaine Tech Services Client Proj ID Chevron 9-8632/980810-T2 Sampled 08/10/98 <br /> 1680 Rogers Avenue Sample Descnpt MW-2 Received 08/13/98 <br /> San Jose CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/23/98 <br /> Attention Fran Thie Lab Number 9808853-02 Reported OBJ31198 <br /> QC Batch Number GC08239813TEX30A <br /> Instrument 1D GCHP30 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 250 1000 <br /> Methyl t-Butyl Ether 12 240 <br /> Benzene 25 <br /> Toluene 130 <br /> 25 30 <br /> Ethyl Benzene 25 130 <br /> Xyienes (Total) 25 20 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 95 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> xl�� I <br /> P 5ry <br /> a"n�ag e r Page 7 <br />