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Sequoia 680 Chesapeake Dnve 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 /> IOMPDS Services Client project ID Unocal#6981,4707 Pacific Ave,Stockton Sampled Jan 25-26, 1995 <br /> 2401 Stanwell Dr , Ste 400 Matrix Descript Water Received Jan 26, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Feb 9, 1995 <br /> Attention Avo Avedissian First Sample# 501-1287 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> ug/L Ng/L pg/L Ing/L Mg/L <br /> 501-1287 MW 1 ND ND ND ND ND <br /> 501-1288 MW 2 8,600 4,100 94 35 130 V <br /> 501-1289 MW 3 54 ND ND ND ND ✓ <br /> 501-1290 MW 4 240 24 ND ND 0 94 v <br /> 501-1291 MW 5 5,000 3,700 27 ND 44 V <br /> 501-1292 MW 6 ND ND ND ND ND t/ <br /> 501-1293 MW 7 250 29 1 0 18 21 -N/ <br /> 501-1294 MW 8 ND ND 072 ND 14 <br /> 501-1295 MW 9 ND ND ND ND ND ✓ <br /> 501-1296 MW 10 ND ND 062 ND 082 <br /> Detection imits 50 050 0 56 050 050 <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 />.Signature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5011287 MPD <1> <br />