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® Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N W,get Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> 4Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)911 0100 <br /> AW <br /> OLDS Services Client Project ID Unocal#2859, 1665 Pacific Ave,Stockton Sampled Fels 8, 1996 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descrlpt Water Received Feb 8, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Feb 29, 1996 <br /> Attention Jarrel Crider First Sample# 602-0685 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Chromatogram DL Mult Date Instrument Surrogate <br /> Number Description Pattern Factor Analyzed ID Recovery, % <br /> QC Limits <br /> 70-130 <br /> 602-0685 MW-1 -- 10 2/22/96 HP-9 124 <br /> 602-0686 MW-2* Gasoline 2,000 2/28/96 HP-4 92 <br /> 602-0687 MW-3** Gasoline 10 2/26/96 HP-11 89 <br /> 602-0688 MW-4** Gasoline 10 2/28/96 HP-4 98 <br /> I <br /> 602-0689 MW-5 -- 10 2/22/96 HP-9 129 <br /> 602-0690 MW-6 Gasoline 10 2/22/96 HP-9 114 <br /> 602-0691 MW-7 10 2/22/96 HP-9 122 <br /> 602-0692 MW-8 -- 10 2/22/96 HP-9 115 <br /> 602-0693 MW-9 -- 10 2/22/96 HP-9 109 <br /> SEQUOIA ANALYTICAL, #1271 Please Note <br /> *This sample was originally analyzed on 2/22/96 and was outside upper control limits for quantitation <br /> gnature on Flle <br /> **This sample was originally analyzed on 2/22/96 but was subject to contamination from a previous sample <br /> Alan B Kemp <br /> Project Manager Page 2 of 2 <br /> 6020685 MPD <2> <br />