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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, 7910 Lower Sac Rd , Stockton Sampled Aug 26, 1993 <br /> 985 Timothy Drive Sample Matrix Water Received Aug 27, 1993 <br /> San Jose, CA 95133 Analysis Method EPA 5030/8015/8020 Reported Sep 7, 1993 <br /> Attention Jim Keller First Sample # 3HD9801 <br /> I <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit ID ID I D. ID ID ID <br /> lrg/L 3HD9801 3HD9802 3HD9803 3HD9804 3HD9805 3HD9806 <br /> MW-1 EB MW-2 MW-3 DUP TB <br /> Purgeable <br /> Hydrocarbons 50 NO N D NO N D ND N D <br /> Benzene 050 NO N D NO N D N D N D <br /> Toluene 050 NO N D N D N D ND N D <br /> Ethyl Benzene 050 N D N D N D N D N D N D <br /> Total Xylenes 050 N D N D N D N D N D N D <br /> Chromatogram Pattern - - - - <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 10 10 1 0 1 0 1 0 <br /> Date Analyzed 9/1/93 9/1/93 9/1/93 9/1/93 9/11/93 9/1/93 <br /> Instrument Identification GCHP-5 GCHP-5 GCHP-5 GCHP-5 GCHP-5 GCHP-5 <br /> Surrogate Recovery, % 101 100 98 100 98 101 <br /> (DC 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 /> ANAL_ L <br /> ProlecV -na er 3HD9801 Bt-A <1> <br />