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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-%00 FAX(916)921 0100 <br />'! Envlros T----- --� Client Prol ID - Shell 6131 Pacific, Stockton-- ' -Sampled j07/02/97 <br /> E 270 Perkins Ave Sample Descript SP-3 Received 07/03/97 <br /> c Sonoma, CA 95476 Matrix SOLID Extracted 07/09/97 <br /> Analysis Method 8015Mod/8020 Analyzed 07/09/97 <br /> Attention Joe Neel Lab Number 9707162.03 w _ Reported_07J�7J97 _ <br /> -_ -------_ =Y r_ __ — <br /> OC-Batch Number GC070897BTEXEXB r <br /> Instrument ID GCHP07 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas . . .. ....... . 50 ... . ... ....... . 98 <br /> Benzene 0 025 N D <br /> Toluene . . ... ...... ... . 0 025 ... ......... . .... 0 092 <br /> Ethyl Benzene .. .... ... 0.025 . ........... . .. 024 <br /> Xylenes (Total) •-- -. .... ... . 0.025 . ..... ........ ... 2 3 <br /> Chromatogram Pattern .. ... .... .. . .... ........... . . C7-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 91 <br /> 4-B romofl uoro benzene 60 140 1500 <br /> xi <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> zw — <br /> regory <br /> P ct Manager Page 4 <br />