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SEQUOIA ANALYTICAL <br /> ` 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 - FAX (415) 364-9233 <br /> Blaine Tech Services, Inc Client Project ID Shell, 141 N El Dorado Sampled May 26, 1993 <br /> 985 Timothy Drive Sample Matrix Water Received May 27, 1993 <br /> San Jose, CA 95133 Analysis Method EPA 5030/8015/8020 Reported Jun 4, 1993 <br /> Attention Jam Keller First Sample# 3EC3301 <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 I D. <br /> ug/L 3EC3301 3EC3302 3EC3303 3EC3304 3EC3305 3EC3306 <br /> RW-1 RW-2 MW-5 MW-2 MW-1 MW-4 <br /> Purgeable <br /> Hydrocarbons 50 77 2,700 N D ND ND 80 <br /> Benzene 050 67 42 ND ND ND 0 85 <br /> Toluene 050 ND 140 N D ND ND ND <br /> Ethyl Benzene 050 33 180 N D N D N D N D <br /> Total Xylenes 050 40 670 N D N D N D N D <br /> Chromatogram Pattern Gas Gas - - - Discrete Peak <br /> Qualdy Control Data <br /> Report Limrt Multiplication Factor 10 10 10 1 0 1 0 10 <br /> Date Analyzed 6/l/93 6/2/93 6/l/93 6/l/93 6/l/93 6/11/93 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 107 89 92 106 99 ill <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting lima <br />�SEQU61A ANAL1 TI Ab. <br /> Proec Vanager 3EC3301 BLA <1> <br />