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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 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> AI� <br /> 4kPDS Services Client Project ID Unocal#2859 1665 Pacific Ave,Stockton Sampled Feb 8, 1996 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript 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 Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> pg/L u9/L µg/L Ing/L Ng/L <br /> 602-0685 MW-1 NO 074 13 NO 078 <br /> 602-0686 MW-2 280,000 3,500 100,000 9,200 52,000 <br /> 602-0687 MW-3 150 56 ND 13 28 <br /> 602-0688 MW-4 110 NO 10 091 059 <br /> . 602-0689 MW-5 NO NO ND NO NO <br /> 602-0690 MW-6 69 14 ND 15 14 <br /> 602-0691 MW-7 NO NO ND NO ND <br /> 602-0692 MW-8 NO NO ND 059 057 <br /> 602-0693 MW-9 NO NO 061 NO NO <br /> [-Detection Limits so 050 050 050 050 <br /> Total Purgeable Petroleum Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as ND were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> egnature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 6020685 MPD <1> <br />