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1 <br /> Sequoia 610 Chesapeake Drive Redwood City CA 94061 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 119 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707) 792-0342 <br /> Pacific Environmental Group Client Protect ID Unocal 0123, Tracy, CA Sampled Oct S, 1998 <br /> ' 11315 Sunrise Gold Circle, Ste M Sample Descript Sal, SP-1-1,2,3,4 Composite Received Oct 7, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 3550/8270 Extracted Oct 8, 1998 <br /> Attention Mike Mitchener Lab Number S810079 -01 Analyzed Oct 12, 1998 <br /> ' Reported Oct 20, 1998 <br /> r < <br /> SEMI-VOLATILE ORGANICS by GCIMS (EPA 8270) <br /> ' Analyte Reporting Limit Sample Results <br /> Ng/kg N9/kg <br />' Di-n-octyl phthalate 250 N D <br /> Fluoranthene 250 N D <br /> Fluorene 250 N D <br />' Hexachlorobenzene 250 N D <br /> Hexachlorobutadiene 250 N D <br /> Hexachlorocyclopentadiene 500 N D <br /> Hexachloroethane 250 N D <br /> Indeno(1,2,3-cd)pyrene 250 N D <br /> Isophorone 250 N D <br /> 2-Methylnaphthalene 250 N D <br />' 2-Methylphenol 250 N D <br /> 4-Methylphenol 250 N D <br /> Naphthalene 250 N D <br /> 2-Nltroantllne 500 N D <br />�3-Nitroaniline 500 N 0 <br /> 4-Nitroaniline 500 N D <br /> Nitrobenzene 250 N D <br /> 2-Nitrophenol 250 N D <br />' 4-Nitrophenol 500 N D <br /> N-Nitrosodiphenylamine 250 N D <br /> N-Nitroso-di-n-propylamine 250 N D <br /> Pentachlorophenol 500 N D <br /> Phenanthrene 250 N D <br /> Phenol 250 N D <br /> Pyrene 250 N D <br />' 1,2,4-Trtchlorobenzene 250 N D <br /> 2,4,5-Trichlorophenol 500 N D <br /> 2,4,6-Trichlorophenol 250 N D <br />' Surrogates Control Limits, % % Recovery <br /> 2-Fluorophenol 25-121 80 <br /> Phenol-d6 24-113 79 <br />' Nitrobenzene-d5 23120 86 <br /> 2-Fluorobiphenyl 30-115 88 <br /> 2,4,6-Tnbromophenol 19-122 84 <br /> 4-Terphenyl-d14 18-137 89 <br /> 1 Analytes reported as N D were not detected at or above the reporting lima <br /> SEQU IA ANALYT AL, ELAP#1210 <br /> K, indfaC Sc neider <br /> Manager/Sacramento Laboratory Page 2 of 2 <br /> S810079 PES <4> <br />