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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 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916) 921 0100
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<br /> 16uchstone Developments Client Project ID Chevron #9-4183 Sampled Apr 26, 1996
<br /> 1 Kingston Ave Sample Descript Sod, UOSP-6(A-D) Received Apr 26, 1996
<br /> Oakland, CA 94611 Analysis Method EPA 8270 Extracted Apr 29, 1996
<br /> Attention Robert Mallory Lab Number 604-1874 Analyzed Apr 30, 1996
<br /> Reported Apr 30, 1996
<br /> QC Batch Number SP0429968270EXA
<br /> Instrument ID GC/MS-1
<br /> SEMI-VOLATILE ORGANICS by GC/MS (EPA 8270)
<br /> Analyte Detection Limit Sample Results
<br /> Ng/kg Ng/kg
<br /> Hexachlorobenzene 1,000 N D
<br /> Hexachlorobutadiene 1,000 N D
<br /> Hexachlorocyclopentadlene 1,000 N D
<br /> Hexachloroethane 1,000 N D
<br /> Indeno(1,2,3-cd)pyrene 1,000 N D
<br /> Isophorone 1,000 N D
<br /> 2-Methylnaphthalene 1,000 N D
<br /> 2-Methylphenol 1,000 N D
<br /> 4-Methylphenol 1,000 N D
<br /> Naphthalene 1,000 N D
<br /> 2-Nitroaniline 5,000 N D
<br /> 3-Nltroandlne 5,000 N D
<br /> 4-Nitroanlline 5,000 N D
<br /> 0-Ntrobenzene 1,000 N D
<br /> itrophenol 1,000 N D
<br /> 4-Nltrophenol 5,000 N D
<br /> N-Nltrosodlmethylamine 1,000 N D
<br /> N-Nitrosodlphenylamine 1,000 N D
<br /> N-Nitroso-dl-N-propylamine 1,000 N D
<br /> Pentachlorophenol 5,000 N D
<br /> Phenanthrene 1,000 N D
<br /> Phenol 1,000 N D
<br /> Pyrene 1,000 N D
<br /> 1,2,4-Tnchlorobenzene 1,000 N D
<br /> 2,4,5-Trichlorophenol 5,000 N D
<br /> 2,4,6-Trichlorophenol 1,000 N D
<br /> Surrogates Control Limit % % Recovery
<br /> 2-Fluorophenol 25 121 63
<br /> Phenol-d6 24 113 72
<br /> Nitrobenzene-d5 23 120 83
<br /> 2-FI uoroblphenyl 30 115 116*
<br /> 2,4,6-Tribromophenol 19 122 87
<br /> 4-Terphenyl-d14 18 137 129
<br /> Analytes reported as N D were not present above the stated limit of detection Because matrix effects and/or other factors
<br /> required additional sample dilution,detection limits for this sample have been raised
<br /> SEQUOIA ANALYTICAL, #1271 Please Note
<br /> *L,- l `�, *Surrogate recovery outside control limits due to sample dilution
<br /> Kevin Van Slambrook
<br /> Project Manager Page 2 of 2
<br /> 6041871 1"U D c 16>
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