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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 (510)988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> ,!D— Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prol ID Shell 620 W Charter Way - - - Sampled 05/21/98 <br /> - 1680 Rogers Avenue Sample Descrlpt MW-4 Received 05/22/98 <br /> - San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/04/98 <br /> Attention Fran Thle _ Lab_Number 9805F39-04- _ - _ _ _ _ Reported 06111/98 „ <br /> Q(f Batch Number-6C66-d498-802002A <br /> Instrument ID HP-2 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas .. 50 - -- - •-- -- 100 <br /> Methyl t-Butyl Ether -- --• 25 -- - •• 47 <br /> Benzene .. 050 27 <br /> Toluene 050 N D <br /> Ethyl Benzene .. 050 .. 075 <br /> Xylenes (Total) 0 50 1 3 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 123 <br /> • <br /> Analytes reported as N D wer of resent above the stated limit of detection <br /> SEQUOIA L IC - ELAP #1271 <br /> Peggy Penner <br /> Project Manager Page <br />