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stream crossings, pipeline crossunders, areas of steep topography, areas of deeper excavation, truck or vehicle turnarounds, and other difficult areas. Wherever possible, TUAs will be located adjacent to other pipeline company ROW easements. It is estimated that 45 TUAs will be required to construct the pipeline. The locations of these TUAs are shown on Figures 3-2a through 3-2h. • - Residential Areas: The pipelines would not be located within 100 feet. of any residence. Special construction activities for czossing rural residential azeas would include: 1) maintaining access to and from residences at all times, unless express authorization is obtained from the landowner; 2) constructing only between the hours of 7:00 a.m. and 6:00 p.m.; 3) implementing dust control measures; and 4) liauting the length of time during which trenches within 250 feet of a residence are open. When crossing private roads, owners would be notified at least 24 hours in advance of construction, and each crossing would be completed within 8 hours. It is intended that no driveway would be closed for more than one construction shift unless arrangements are agreed upon with the affected landowner. It should be noted that the project is in a rural area, and only one known residence would be approached by the pipeline. • Agricultural Lands: Construction on agricultural lands would be timed to • avoid wet weather and/or critical farming/ranching operations, as specified by the landowner. Other protection measures would include the segregation and conservation of topsoil. Rock brought to the surface by construction operations would be buried or removed from the ROW during restoration. At the landowner's request, backfill would not be mounded over the trench to avoid interrupting irrigation water distribution. Weed control measures would be implemented, and revegetation efforts would be repeated, if necessary. • Steep Slopes: Steep, rocky terrain where slope stability may be a concern has been identified at four locations: Davis Point; the northern end of Barnes Ridge; immediately south of the second Piceance Creek crossing; and at the upper end of Hatch Gulch. The Davis Point section of the proposed Yankee Gulch Project pipeline route is the only area with significant construction constraints related to slope stability. Blasting may be necessary on the upper eastern face of Davis Point in order to construct a useable pipeline trench. A blasting plan similar to that included i n Attachment 3 will be finalized prior to construction of the pipeline. Slope stability practices will also be implemented in construction of the Davis Point section of the Yankee Gulch Pmject pipelines. eipeli,+e clan of Development 13 Yankee Guld~ Sodium Mv~als Aojett Amman Soda, LLP.