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SEQUOIA ANALYTICAL ;.12 a U 91992 <br /> 680 Chesapeake Drive • Redwood Ccty, CA 94063 <br /> (415) 364-9600 FAX(415)364-9233 <br /> �fFiESNA ~ Client Project ID W0475.13,weber Pt. Sampled Nov 2, 1992 <br /> 1710 Main Street Sample Matrix: Air Received. Nov 3, 1992 <br /> Escalon, CA 95320 Analysis Method- EPA 5030/8015/8020 Reported Nov 4, 1992 <br /> Attention Greg Stahl First Sample#: 211-0174 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. <br /> yg/L 211-0174 211-0175 211.0176 <br /> INF w/Make up INF w10 EFF 2C <br /> Make Up <br /> Purgeable <br /> Hydrocarbons 5.0 1,000 1,200 1,100 <br /> Benzene 0 050 N D N D. N D. <br /> Toluene 0 050 21 23 75 <br /> Ethyl Benzene 0 050 16 20 21 <br /> Total Xylenes 0 050 110 140 35 <br /> Chromatogram Pattern Gan Gass Non-Gas Mix <br /> 04-CS <br /> Quality Control Data <br /> Report Limit Multiplication Factor. 50 50 25 <br /> Date Analyzed: 11/3/92 11/3/92 11/3/92 <br /> Instrument Identification. GCHP-2 GCHP-2 GCHP 2 <br /> Surrogate Recovery,%: 103 104 122 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantrtated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting lirnlL <br /> 0 <br /> SEQUOIA ANALYTICAL <br /> roject Managef 2110174 WAT c1> <br />