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SEW <br /> !•OIA ANALYTICAL <br /> Bates Avenue 0 Suite LM a Concord,California 94520 <br /> (510)686.9600 • FAX (510)686.9689 <br /> Alton Geosclence Client Project ID: Mobil 04-343 /30-0138 Sampled: Jan 21, 1994 <br /> 30-A Lindbergh Ave. Sample Matrix: Water Received; Jan 25 1994 <br /> Livermore, CA 94550 <br /> Analysis Method: EPA 5030/8015/8020 <br /> Attention: t <br /> s ample 401-1134 <br /> Stephan Rosen Fir Reported: Jan 28, 1994 <br /> #; <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. I.D. I.D. LD. <br /> pg/L 401-1134 401-1135 401-1136 401-1137 401-1138 401-1139 <br /> AW-7 AW-8 AW-9 AW-10 AW-11 AW-12 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. N.D. N.D. N.D. <br /> N.D. <br /> Benzene 0.5 N.D. N.D. N.D. N.D. N.D. <br /> N.D. <br /> Toluene 0.5 N.D. N.D. N.D. N.D. N.D. <br /> N.D. <br /> Ethyl Benzene 0.5 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Total Xylenes 0.5 N.D. N.D. N.D. N.D. N.D. <br /> N.D. <br /> Chromatogram Pattern: <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 1,0 1.0 <br /> 1,0 <br /> Date Analyzed: 1/26/94 1/26-/94 1/27/94 1/27/94 1/27/94 1/27/84 <br /> Instrument Identification: HP_5 HP-5 HP-4 HP-4 HP-4 <br /> HP-4 <br /> Surrogate Recovery, 96: <br /> (QC umfts = 70-130%) 102 103 95 ]OD 97 92 <br /> Puryeable hydrocarbons are quantitated against a fresh gasoline standard. <br /> Analytes reported as N.D.were not detected above the stated reporting limit. <br /> SEQUOIA A YTICAL <br /> ren L Enstrom <br /> Project Manager <br /> 4011128.ALT <2> <br />