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ERHIBIT D (Cont'd) <br />Along the south property line on the eastern half of <br />the property, the affected land boundary was set back 150 <br />feet. In addition, the excavation line was moved another <br />100 feet north. In the western part of the south property <br />line the affected land boundary was set back 250 feet to <br />900 feet (see Map Exhibit D-1). The excavation line in this <br />area is from 80 feet to 100 feet north of the affected ]n.nd <br />boundary. On the east and west sides the property line is <br />the affected land boundary. The setback for excavation is <br />30 feet. On the north the property line is the affected land <br />boundary. Along the eastern part of the north side an irriga- <br />tion ditch parallels the property line. Its distance from the <br />operator's property varies. In this area the excavation line <br />has been set back at least 30 feet, or more if necessary, in <br />order to provide a buffer for the irrigation ditch of at least <br />50 feet. Along the west part of the north line the Colorado <br />River is near the affected land boundary; therefore, the <br />excavation line has been set back 100 feet. <br />"~ <br />The mine area is to be dewatered 'and excavated under semi- <br />--- -- <br />dry conditions. Dewatering will be started prior to mining <br />and will continue throughout the life of the mine. (See <br />Exhibit G, Water Information, for more details.) An NPDES <br />permit will be obtained from the Department of Health. <br />Before mining begins in each stage, the existing soils <br />and overburden must be stripped, segregated and stockpiled. <br />Soil stockpiles will be established in perimeter areas and <br />-9- <br />