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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 late,Avenue,Suite L Concord,CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> w„1 Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> W- Str'a'tegies Eric h Client Project Ib -Unocal #6981" Sampled May 16,ry 995 <br /> 3035 Prospect Park Dr, Suite 80 Sample Matrix Air Received May 17, 1995 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Reported May 23, 1995 <br /> Attention Greg Gurss First Sample# 505-0921 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D I D <br /> Mg/M3 505-0921 505-0922 <br /> Effluent Influent <br /> Purgeable <br /> Hydrocarbons 50 510 7,600 <br /> Benzene 0 050 10 130 <br /> Toluene 0 050 30 580 <br /> Ethyl Benzene 0 050 29 96 <br /> Total Xylenes 0 050 8 4 330 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 100 <br /> Date Analyzed 5/19/95 5/19/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 99 91 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> 1 l <br /> Jane Harlan <br /> Project Manager <br /> 5050921 GSI <1> <br /> t� <br />