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Sequoia 680 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 /> via-or Analytical 819 Stinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 96W FAX(916)921 0100 <br /> MPDS Services Client Project iD Unocal#6981,4707 Pacific Ave,Stockton Sampled Jul 26, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Jul 27, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Aug 10, 1995 <br /> Attention Sarkis Karkarian First Sample # 507-2014 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Ng/L pg/L Ng/L lig/L pg/L <br /> 507-2014 MW9 ND ND 14 ND 12 <br /> 507-2015 MW10 ND 065 23 ND 25 <br /> 507-2016 MW11 ND 091 27 ND 27 <br /> 507-2017 MW12 ND ND 15 ND 13 <br /> 507-2018 MW13 ND 059 21 ND 24 <br /> Detection Limits 50 050 0 50 050 0 50 <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 /> eignature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5072006 MPD <3> <br />