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Sequoia <br />080 Chesapeake Drive Redwood City, CA 9406415) 364-9600 FAX (415) 364-9233 <br />Analytical <br />404 N. Wiget Lane Walnut Creek, CA 94598 (510) 988-9600 FAX (510) 988-9673 <br />819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921.9600 FAX (916) 921-0100 <br />1.0 <br />Date Analyzed: <br />8/1/95 <br />:.::::::::::: <br />Delta Environmental Consultants <br />::.:::::::::::.::::.....................::.::.::.:::.:.::;: <br />:.::............:::::::::::::::..... <br />Cilent Project ID: Unocal #5886 ..... <br />:.:::::.::.::.::.::.:::::::::::.::::::::.::.:::.::.:: <br />...::::...:::..............:..:..:.::::....:::: <br />......... Sampled:. Jul 27, 1995; <br />3164 Gold Camp Dr., Suite 200 <br />Sample Matrix: Soil <br />Received: Jul 28, 19W <br />Rancho Cordova, CA 95670 <br />Analysis Method: EPA 5030/8015/8020 <br />Reported: Aug 4, 1995:' <br />Attention: Eric Holm <br />First Sample #: 507-1462 <br />92 <br />TOTAL PURGEABLE <br />PETROLEUM HYDROCARBONS with <br />BTEX DISTINCTION <br />Reporting <br />Sample Sample Sample <br />Sample <br />Analyte Limit <br />I.D. I.D. I.D. <br />I.D. <br />mg/kg <br />507-1462 507-1463 507-1464 <br />507-1465 <br />P -2 -NE -9.5 P -2 -SW -9.5 P -2 -SE -9.5 <br />P -2-C-9.5 <br />Purgeable <br />Hydrocarbons 1.0 <br />22 7.9 N.D. <br />4.3 <br />Benzene 0.0050 <br />N.D. N.D. N.D. <br />N.D. <br />Toluene 0.0050 <br />N.D. 0.017 N.D. <br />N.D. <br />Ethyl Benzene 0.0050 <br />0.020 0.13 N.D. <br />N.D. <br />Total Xylenes 0.0050 <br />N.D. 0.20 0.0053 <br />0.010 <br />Chromatogram Pattern: <br />Weathered Weathered <br />Unidentified <br />Gasoline Gasoline <br />Hydrocarbons <br />C8 -C12 C8 -C12 <br />>C10 <br />wuauty controi uata <br />Report Limit Multiplication Factor: <br />1.0 <br />1.0 <br />1.0 <br />1.0 <br />Date Analyzed: <br />8/1/95 <br />8/4/95 <br />8/1/95 <br />8/1/95 <br />Instrument Identification: <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />Surrogate Recovery, %: <br />109 <br />82 <br />92 <br />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 />SE( <br />,�JOIA ANALYTICAL, ELAP #1624 <br />Linda C. Schneider <br />Project Manager <br />0 <br />5071456.DLT <2> <br />