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1 <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650) 364 9233 <br /> 404 N W get Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> SECOR International Client Project ID Shell 6220 S Virginia ST Reno NV Sampled Jun 24 1998 <br /> 9912 Business Park Dr Ste 100 Sample Matrix Water Received Jun 25 1998 <br /> Sacramento, CA 95827 Analysts Method EPA 5030/8020 DHS Luft Reported Jul 10 1998 <br /> Attention Rusty Benkosky Lab Project # S806396 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit ID I D i D <br /> ,ug/L S80639606 S80639607 S80639608 <br /> MVV 4 BHS i Trip Blank <br /> Purgeable <br /> Hydrocarbons 50 N D 5,500 N D <br /> Benzene 050 N D 37 N D <br /> Toluene 050 N D N D N D <br /> Ethyl Benzene 050 N D 170 N D <br /> Total Xylenes 050 N D 46 N D <br /> MTBE 50 N D 580 N D <br /> Chromatogram Pattern - <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 1 0 20 1 0 <br /> Date Analyzed 07/07/98 07/07/98 07/07/98 <br /> Surrogate Recovery, % 87 97 97 <br /> (OC Limits = 60-140%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> Samples were analyzed by STAR Analytical (FLAP 411849) an affiliate laboratory of Sequoia Analytical <br /> EQUOIA ANALYTICAL <br /> inda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 5806396 SES �2> <br />