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locations will be surveyed prior to construction, and areas with noxious weeds will be treated prior to construction. ' 3.3 Pipeline Installation Details 3.3.1 Clearing and Grading Clearing, grading, and other disturbance of soil and vegetation in the ROW and TUAs will be limited to the minimum area required for pipeline construction. Clearing for the construction pipeline ROW will be a maximum of 125 feet, ' where practical. This will allow for operation of construction machinery, placement of excavated materials, and movement of other pipeline construction traffic along the pipeline corridor during pipeline construction. During the operations period, the permanent pipeline easement width will be reduced to 50 feet. Clearing of the ROW may be less than the proposed 125-foot ROW width in some areas to mitigate potential impacts to existing resources. In addition, efforts will be made to overlap existing right-of-way disturbance to the extent possible, ' and it is estimated that up to 25 feet of the construction ROW may overlap existing pipeline corridors in certain locations. Areas requiring more than the standard construction width will be identified as engineering design progresses ' and temporary use permits are acquired. In no case will the contractor exceed the areas designated for temporary use. ' Clearing of areas with trees and shrubs will be completed using a standard bulldozer. Trees, brush, other woody material, and rocks cleared from the ROW will be placed to one side inside the ROW or at TUAs for later use in reclamation. Pinyon and juniper trees will be cut and piled near one end of the construction ROW. Trees will not be pushed into piles and mixed with the soils. ' In vegetative types other than pinyon-juniper (i.e., sagebrush flats, pasture lands, etc.), clearing of the ROW will consist of mowing the area with a "brush hog" or similar device, if necessary. Grass cover and other low-growing vegetation will ' not be intentionally removed except immediately over the pipeline trench. ' 3.3.2 Topsoil Removal Suitable topsoil material will be removed in conjunction with clearing and ' stripping and will be conserved in stockpiles within the ROW (see Figure 2-1). Where topsoil and subsoil (trench spoil) conditions differ, they will be placed in separate piles on one side of the pipeline trench. To protect soils, construction activities will not be performed during periods when the soil is too wet to adequately support construction equipment. PipeLre Wortnaoon Summary 15 ' Yankee Gulch $oGum Mirerals Proj<n Amencan Sotla. LLP.