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Sequoia 680 Chesapeake Dnve 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 %73 <br /> �rill�► Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95894 {916} 921 9600 FAX(916)921-0100 <br /> r--c„r•••»•�s =—__.._ ^�� _�...•-••�,— _:—�9 — — — — »" —�»....„ .w =T...�.— _—» ....=»•—•�i^'+^.^?�»»'mss» .. .. �_ .. » -•»—.--- � <br /> Enviros� _ Client Proj ID Shell 6131 Pacific, Stockton " Sampled 09/16/97)G <br /> E 270 Perkins Ave Sample Descript MW-0-40' Received 09/19/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 s <br /> Analysis Method 8015Mod/8020 Analyzed 09/26/97 <br /> _A Attention J-Gaarder _ _Lab Number-9709C09-09-- _ - - Reported ,10f0�97_ <br /> .................µ �� ��_= _ - �__— --- ----_–-- <br /> QC Bach Nb GC092597BTEXEXB�~==M -- µ <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D _ <br /> Ethyl Benzene 00050 N D <br /> Xylenes (total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 81 <br /> 4-Bromofluorobenzene 60 140 106 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP #1210 <br /> Mie dr Aory <br /> Project Manager Page 27 <br />