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ATTACHMENT 1 <br /> City of Land Soil Sample Date: <br /> Tracy Treatment Analysis 2 May 1991 <br /> Facility <br /> Test Method Location Constituent Concentration Detection Limit <br /> EPA 8020 Cell 3 & 20 BTEX' NO 1 ppb <br /> Cell 7 Toluene 3 ppb 1 ppb <br /> Cell 7 Xylene 48 ppb 1 ppb <br /> Cell 19 Toluene 73 ppb 10 ppb' <br /> Cell 19 Xylene 914 ppb 10 ppb' <br /> EPA 8015 Cell 7 Gasoline ND 5 ppm <br /> Modified Diesel 575 ppm 10 ppm <br /> Motor Oil 1680 ppm 25 ppm <br /> TPH' 2255 ppm <br /> Cell 19 Gasoline NO 50 ppm' <br /> Diesel 4760 ppm 100 ppm' <br /> Motor Oil 11300 ppm 250 ppm' <br /> TPH' 16060 ppm <br /> NO - Not Detected <br /> 1 - Includes all constituents for EPA 8020 including benzene, toluene, <br /> ethyl benzene, and xylene were not detected. <br /> 2 - Higher detection limits due to high analyte concentration. <br /> 3 - Sum of total hydrocarbons measured using gas chromatograph with flame <br /> ionization detector. <br />