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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) 998 9600 FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> �„v <br /> Uchstone Development Client Project 1D Chevron #9-2033 Sampled Mar 4, 1997 <br /> O Bax 2554 Sample Descript Soil, 1106-12' Received Mar 4, 1997 <br /> Santa Rosa, CA 95405 Analysis Method PPA 8270 Extracted Mar 7, 1997 <br /> Attention Jett Monroe Lab Number 703-0207 Analyzed Mar 12, 1997 <br /> Reported Mar 13, 1997 <br /> QC Batch Number SP0307978270EXA <br /> Instrument ID GC/MS-1 <br /> SEMI-VOLATILE ORGANICS by GC/MS (EPA 8270) <br /> Analyte Detection Limit Sample Results <br /> N9/k9 Ng/k9 <br /> Hexachlorobenzene 100 N D <br /> Hexachlorobutadiene 100 N D <br /> Hexachlorocyclopentadiene 100 N D <br /> Hexachloroethane 100 N D <br /> Indeno(1,2,3-cd)pyrene 100 N D <br /> Isophorone 100 N D <br /> 2-Methylnaphthalene 100 N D <br /> 2-Methylphenol 100 N D <br /> 4-Methylphenol 100 N D <br /> Naphthalene 100 N D <br /> 2-Nitroanilme 500 N D <br /> 3-Nitroanilme 500 N D <br /> 18Ndroaniline 500 N D <br /> 1trobenzene 100 N D <br /> 2-Nitrophenol 100 N D <br /> 4-Nitrophenol 500 N D <br /> N-Nitrosodimethylamine 100 N D <br /> N-Nttrosodiphenylamine 100 N D <br /> N-Nitroso-di-N-propylamine 100 N D <br /> Pentachlorophenol 500 N D <br /> Phenanthrene 100 N D <br /> Phenol 100 N D <br /> Pyrene 100 N D <br /> 1,2,4-Trichlorobenzene 100 N D <br /> 2,4,5-Trichlorophenol 500 N D <br /> 2,4,6-Trichlorophenol 100 N D <br /> Surrogates Control Limit% % Recovery <br /> 2-Fluorophenol 25 121 34 <br /> Phenol-d6 24 113 40 <br /> Nitrobenzene-d5 23 120 38 <br /> 2-Fluorobiphenyl 30 115 46 <br /> 2,4,6-Tribromophenol 19 122 42 <br /> 4-Terphenyl-d 14 18 137 69 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> *Ka" (a <br /> Melissa A Brewer <br /> Client Services Representative Page 2 of 2 <br /> 7030207 TOU 46> <br />