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Sequoia 610 Chesapeake Drive Redwood City, CJI 94o63 (415) 361.9600 FAX(41S)364.9233 <br /> 404 N. Whet Lane Walnut Creek,CA 94595 (5 10) 988.9600 FAX(S Io)9II.9673 <br /> Analytical 319 Striker Avenue,Suite I Sacramento,CA 95134 (916) 921.9600 FAX(916)931.0100 <br /> Afton Geosclence Clie6tProject ID: Mobil X04-343, Tracy' Sampled: Oct 24, 1995 <br /> 30-A Lindbergh Ave. Sample Matrix: Water Received: Oct 25, 1995 <br /> Livermore, CA 94550 Analysis Method. EPA 5030/8015 Mod./8020 Reported: Nov 3, 1995 <br /> Attention: A. LeMay First Sample #: 510-2086 <br /> OC Batch Number: GC103095 GC103095 GC103195 GC103195 GC103195 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBQ SAwith BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. I.D. I.D. <br /> Ng/L 510-2086 510-2087 510-2088 510-2089 510-2090 <br /> AW-8 AW-9 AW- 10 AW- 12 AW-5 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. N.D. N.D. N.D. <br /> Benzene 0.50 N.D. N.D. N.D. N.D. N.D. <br /> Toluene 0.50 N.D. N.D. N.D. N.D. 0.55 <br /> Ethyl Benzene 0.50 N.D. N.D. N.D. N.D.- N.D. <br /> Total Xylenes 0.50 0.58 N.D. N.D. N.D. 0,55 <br /> Chromatogram Pattern: <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 1.0 1.0 <br /> Date Analyzed- 10/30/95 10/30/95 10/31/95 10/31/95 10/31/95 <br /> Instrument Identification: HP-9 HP-9 HP-9 HP-9 HP-9 <br /> Surrogate Recovery, 90: 83 83 89 84 85 <br /> (QC Limps = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard. <br /> Analytes reported as NZ were not detected above the stated repotting limit. <br /> SEQUOIA ANALYTICAL, #1271 <br /> r U <br /> evin Van Slam rook <br /> Project Manager <br /> 5102080.ALT <2> <br />