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SEQUOIA ANALYTICAL <br /> � 680 Chesapeake Drive Redwood City, 4063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> F <br /> Blaine Tech Services, Inc Client Project lD Shell, 620 W Charter Wy Y Sampled Nov 22, 1993 <br /> 985 Timothy Drive Sample Matrix Water Received Nov 23, 1993 <br /> San Jose, CA 95133 Analysis Method EPA 5030/8015/8020 Reported Dec 9, 1993 <br /> Attention Jim Keller First Sample# 3KE3801 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D. ID I.D. I D. I.D. I.D. <br /> Ng/L 3KE3801 3KE3802 3KE3803 3KE3804 3KE3805 3KE3806 <br /> DUP TB MW-1 MW-2 MW-3 MW-4 <br /> Purgeable <br /> Hydrocarbons 50 1,300 N D N D 340,000 1,400 490,000 <br /> Benzene 050 N D N D N D 2,800 N D 1,100 <br /> Toluene 050 N D N D N D 4,300 N D 680 <br /> Ethyl Benzene 050 1 0 N D N D 2,900 10 3,600 <br /> Total Xylenes 050 91 N D N D 30,000 90 18,000 <br /> Chromatogram Pattern Weathered Gas Weathered Gas <br /> Gas Gas <br /> Quairty Control Data <br /> Report Limit Multiplication Factor 10 1 0 1 0 500 1 0 500 <br /> Date Analyzed 12/11/93 12/1/93 12/1/93 12/1/93 12/1/93 12/1/93 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 121 107 107 123 123 N D <br /> (QC 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 limit <br /> -�1 <br /> SEJMJaA ANALYTICAL <br /> s <br /> '4 <br /> Feg�y A Penner <br /> Project Manager 3KE3801 BLA <1� <br />