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' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 9'oy F Weston Client Project ID San Joaquin County Capitol Projects Sampled Jul 10, 1995 <br />' 2300 Clayton Rd , Suite 1580 Sample Matrix Soil Received Jul 11, 1995 <br /> Concord, CA 94520-2148 Analysis Method EPA 5030/8015/8020 Reported Jul 27, 1995 <br /> Attention David Marks First Sample# 507-0280 <br />' TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />' Reporting Sample Sample Sample Sample <br /> Analyte Limit I D. I D. I D. I D. <br /> mg/kg 507-0280 507-0281 507-0282 507-0283 <br />' MPA-20- MW2A-30 MW2A-40 MW2A-45' <br /> Purgeable <br />' Hydrocarbons 10 N D N D N D 28 <br /> Benzene 00050 N D N D 0 012 046 <br /> 1 <br /> Toluene 00050 N D N D N D 00091 <br />' Ethyl Benzene 00050 N D 00065 00064 016 <br />' *Total Xylenes 00050 N D 0 036 0 010 0 056 <br /> Chromatogram Pattern - - Gasoline <br /> C6-C12 <br />' <br /> Quality Control Data <br />' Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 7/18/95 7/18/95 7/18/95 7/19/95 <br />' Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 112 127 113 90 <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 /> IEQUOIA ANALYTICAL, ELAP#1624 <br /> Linda C Schneider <br /> Project Manager <br /> 5070280 ROY <1> <br />