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o Excavation. A bowl-shaped pit 4 feet deep and 8 feet across <br /> will be excavated. <br /> o Pot. The excavated pit will be lined with 3 inches of <br /> reinforced concrete and sprayed with a coating impervious to <br /> the tree roots. The concrete and coating will begin 1 to 2 <br /> feet below grade to allow grass to grow unimpeded on the <br /> ground. <br /> o The casing will be cut off at the bottom of the pot. <br /> o Planting. The pot will be filled with top soil. The trees <br /> can then be planted with standard procedures. <br /> o Sod from the original excavation will be laid to return the <br /> ground surface to original conditions. Care for the trees <br /> will be handled by the City of Tracy with initial guidance <br /> from Chevron. <br /> Note: Dimensions given above may change slightly in <br /> final design. <br /> 9 <br />