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Sequoia 689 Chesapeake Dnve Redwood City CA 94063 (4t5) 364 9600 FAX(415) 364 9233 <br /> 1900 Bates Avenue Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID 940510-A2, Shell, 141 N El Dorado Sampled May 10, 1994 <br /> 985 Timothy Drive Sample Matrix Water Received May 11, 1994 <br /> San Jose, CA 95133 Analysis Method EPA 5030/8015 Mod /8020 Reported May 23, 1994 <br /> Attention Jim Keller First Sample# 4E73901 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with STEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I.D. I D I D I D. LD <br /> ,pg/L 4E73901 4E73902 4E73903 4E73904 4E73905 4E73906 <br /> RW-1 RW-2 MW-1 MW-2 MW-3 MW-4 <br /> Purgeable <br /> Hydrocarbons 50 N D 810 N D N D 19,000 N D <br /> Benzene 050 29 12 N D N D 1,900 N D <br /> Toluene 050 N D 64 N D N D 71 N D <br /> Ethyl Benzene 050 N D 50 N D N D 1,200 N D <br /> Total Xylenes 050 N D 120 N D N D 3,900 N D <br /> Chromatogram Pattern Cs-C12 - C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 50 1 0 1 0 40 10 <br /> Date Analyzed 5/14/94 5/15/94 5/15/94 5/15/94 5/15/94 5/15/94 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-3 GCHP-3 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 100 85 95 96 95 100 <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 /> UOIA ANALYTICAL <br /> I <br /> Suzanne Chrn <br /> Project Manager 4E73901 BLA <1> <br />