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Sequoia :'1 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> Bates Avenue, Suite L Concord,CA 94520 (510) 686-9600 FAX(510)686-%89 <br /> 1 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-960() k <br /> Analytical '900 FAX(916)921-0 100 <br /> .............. <br /> Brown&Caldwell . lent Project ID Arco 2093 94-2 S am <br /> p ed ... ...... <br /> 9/26,23/94..'� <br /> 9616 Micron Ave., Suite 600 <br /> Sample Matrix: Soil Received: Sep 27, 194. <br /> Sacramento, CA 95827 Analysis Method: EPA 5030/8015/8020 Reported. Oct 7, 1994...". <br /> 4 <br /> Attention: Steve Misner First Sample #: 409-1290 <br /> ............. ..................... <br /> ........................................ <br /> ............... ........ ... . . <br /> ............ <br /> ............ ............ <br /> ........................ <br /> 2 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporti"ng Sample Sample Sample Sample <br /> Analyte Limit W. I.D. I.D. I.D. <br /> mg/kg 409-1290 409-1291 409-1292 409-1293 <br /> VES-6- VES-6- S-2- S-2- <br /> 5-51A 10-1 11h 5-51A 10-111h <br /> Purgeable <br /> Hydrocarbons 1.0 N.D. N.D. N.D. 470 <br /> Benzene 0.0050 N.D. 0.034 N.D. N.D. <br /> Toluene 0,0050 N.D. 0,030 0.0055 0.26 <br /> Ethyl Benzene 0.0050 N.D. 0.0088 N.D. 1.9 <br /> N'Total Xylenes 0.0050 N.D. 0.034 N.D. o.63 <br /> % <br /> Chromatogram Pattern: <br /> Weathered <br /> Gasoline <br /> C8-C12 <br /> k' <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 - 20 <br /> Or <br /> Date Analyzed: 10/3/94 10/4/94 10/4/94 10/5/94 <br /> Instrument Identification: GCHP-11 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, %: 108 76 78 78 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard. <br /> Analytes reported as N.O.were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP#1624 <br /> Je ie Higgins <br /> Project Manager <br /> 4MI278.BRS <3> <br /> J <br />