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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget I_,ane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Straker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Touchstone Developments Client Proj 1D Chevron 9-4183 /9-4183 Sampled 04/10/96 <br /> 781 Kingston Ave Sample Descript T4-W-9 5 Received 04/10/96 <br /> Oakland, CA 94611 Matrix SOLID Extracted 04/15/96 <br /> Analysis Method EPA 8270 Analyzed 04/15/96 <br /> Attention Robert Mallory Lab Number 9604850-02 Reported 04J24J96 <br /> QC Batch Number MSO415968270EXA <br /> Instrument ID F4 <br /> Analyte Detection Limit Sample Results <br /> ug/Kg ug/Kg <br /> 2,6-Dinitrotoluene 25000 N D <br /> Dl-n-octyl phthalate 25000 N D <br /> Fluoranthene 25000 N D <br /> Fluorene 25000 N D <br /> Hexachlorobenzene 25000 N D <br /> Hexachlorobutadiene 25000 N D <br /> H exac hlorocycl o pentad iene 50000 N D <br /> Hexachloroethane 25000 N D <br /> Indeno(1,2,3-ed)pyrene 25000 N D <br /> Isophorone 25000 N D <br /> 2-Methylnaphthalene 25000 N D <br /> 2-Methylphenol 25000 N D <br /> 4-Methylphenol 25000 N D <br />� <br /> phthalene 25000 N D <br /> itroaniline 50000 N D <br /> rtroaniline 50000 N D <br /> 4-Nitroanlllne 50000 N D <br /> Nitrobenzene 25000 N D <br /> 2-Nltrophenol 25000 N D <br /> 4-Nltrophenol 50000 N D <br /> N-Nitrosodlphenylamine 25000 N D <br /> N-Nitroso-di-n-propylamine 25000 N D <br /> Pentachlorophenol 50000 N D <br /> Phenanthrene 25000 N D <br /> Phenol 25000 N D <br /> Pyrene 25000 N D <br /> 1,2,4-Trichlorobenzene 25000 N D <br /> 2,4,5-Trichlorophenol 50000 N D <br /> 2,4,6-Trichlorophenol 25000 N D <br /> Surrogates Control Limits% % Recovery <br /> 2-Floorophenol 25 121 Q <br /> Phenol-d5 24 113 Q <br /> Nitrobenzene-d5 23 120 Q <br /> 2-Fluorobiphenyl 30 115 Q <br /> 2,4,6-Tribromophenol 19 122 Q <br /> p-Terphenyl-d14 18 137 Q <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Kevin Follett <br /> Project Manager Page 8 <br />