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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 1900 Bates Avenue,Suite L Concord,CA 94520 (510) 686 9600 FAX (510) 686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> *PDS Services Client Project 1D Unocal#6348,3788 Tracy Blvd Tracy Sampled Jun 8, 1994 <br /> 2401 Stanwell Dr , Ste 400 Sample Matrix Water Received Jun 8, 1994 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Jun 22, 1994 <br /> Attention Avo Avedessian First Sample# 406-0426 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D <br /> pg/L 406-0426 406-0427 406-0428 406-0429 <br /> MWi MW2 MW3A MW4 <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D N D <br /> Benzene 05 N D N D N D N D <br /> Toluene 05 N D N D N D N D <br /> Ethyl Benzene 0 5 N D N D N D N D <br /> is Total Xylenes 0 5 N D N D N D N D <br /> Chromatogram Pattern -- -- -- -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 6/20/94 6/20/94 6/20/94 6/20/94 <br /> Instrument Identification HP-5 HP-5 HP-5 HP-5 <br /> Surrogate Recovery, % 114 104 109 108 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL, #1271 <br /> Aemp <br /> Protect Mana r <br /> 4060426 MPD <t> <br />