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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> .... . .. ....... <br /> :...ERM-West Client Project ID.- 4004 El Dorado, Stockton Sampled: Nov 15, 1990 <br /> ..�2001 P Street, Suite 200 Matrix Descript: Soil Received: Nov 15, 1990'.. <br /> Sacramento, CA 95814-5213 Analysis Method: EPA 5030/8015/8020 Analyzed: Nov 15, 1990,%L., <br /> :.�Attention: Jim Quinn First Sample#: 011-9108Reported: Nov 20, 1990 <br /> . <br /> ......... ...................... <br /> .......... <br /> . .......... <br /> ............. <br /> :":- <br /> ..................L.......L"L..................... <br /> ....... <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (ppm) (Ppm) (ppm) (ppm) (ppm) <br /> 011-9108 MP6-4, 46-461h' N.D. 0.041 0,027 N.D. 0.011 <br /> 011-9112 MPG-5, 51'-51 W N.D. N.D. 0.013 N.D. N.D. <br /> Detection Limits: 2.0 0.'010 0.010 0.010 0.010 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were not present above the stated limit of detection. Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised. <br /> SEQUOIA ANALYTICAL <br /> Maile A. Birney <br /> Project Manager 119068,ERM <10> <br />