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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(5to)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> = <br /> --- -- " ' - Client Projr ID Shell 613T Pacific, Stockton Sampled 09/16/97 <br /> -- Environ Sample Descri t MW-4-56' Received 09/19/97 <br /> So Perkins Ave Matrix SOLIDp / / <br /> Sonoma, CA 95476 Extracted 09 25 97 <br /> Analyzed 09/26/97 I <br /> — Attention J-Gaarder LablNu�Method <br /> erh 9709C09-01 d _- <br /> .. -� .......__-Yin......« ..... <br /> 03 <br /> sports .10 97 <br /> -L..�...«..- tip—L.«......� _i-i............«.....�-__--_--.... <br /> DC Batch Number GC092597BTEXEXB <br /> Instrument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas .... .. .. ....... . 2.0 ... ...... . . ..... 8.7 <br /> Benzene ......... . . . ... 0.010 ....... . ........ . 1.9 <br /> Toluene -. .... .. ... 0 010 .. .. .... ... ... 1 8 <br /> Ethyl Benzene •... ..... . ..... . 0.010 ...... ... .... ... 0.19 <br /> Xylenes (Total) ......... . . . .... 0.010 ....... . ....... 064 <br /> Chromatogram Pattern: . ..••. •- - ••• •• ................ C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 79 <br /> 4-Bromofluorobenzene 60 140 92 <br /> PO <br /> Analytes reported as N D were not present above the stated limit of detections <br /> SEQUOIA A ALYTICAL - ELAP 461210 <br /> Mike regory u <br /> Project Manager Page 3 <br /> i <br /> i <br />