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14 n <br />GeoStrategies Inc. <br />Chevron USA, Inc <br />February 6, 1992 <br />Page 4 <br />OVEREXCAVATION ANALYTICAL RESULTS <br />Overexcavation Results <br />TPH-Gasoline, TPH-Diesel, TPH-Oil, BTEX and O&G were reported as ND in <br />sample CX -2S Benzene, TPH-Diesel and O&G were reported as ND in sample <br />CX -3S Sample CX -3S contained TPH-Gasoline, TPH-Oil and soluble lead at <br />concentrations of 3 6 ppm, 20 ppm and 0 096 milligrams per liter (mg/1), <br />respectively Chemical analytical data and sample collection depths are <br />summarized in Table 1 <br />Stockpile Results <br />Sample CWS -2 contained 10 ppm TPH-Gasoline, 43 ppm TPH-Oil and was ND <br />for TPH-Diesel, BTEX and O&G Chemical analytical data are summanzed in <br />Table 1 <br />Ground -water Results <br />Sample CH -1 contained 7 300 ppm TPH-Gasoline, 1 000 ppm TPH-Oil, less <br />than 2 000 ppm O&G, less than 0 025 ppm BTEX and less than 0 300 ppm <br />TPH-Diesel Chemical analytical data are summarized in Table 1 <br />SOIL DISPOSITION <br />Upon receipt of the chemical data, approximately 40 cubic yards of soil <br />represented by samples CWS -1 and CWS -2 were transported to Forward Landfill <br />located in Stockton, California <br />729702-2 <br />