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-.-I C'J M C\l CHAPTER IV PLAN FORMULATION Uses Coal industry Sprinkler irrigation Surface irrigation Municipal Total Water supply summary (acre-feet per year) White Milk River Creek Segment Segment 30,000 5,000 17,900 0 o 8,500 5,000 0 52,900 13,500 Total 35,000 17,900 8,500 5,000 66,400 About 11,940 acres of land would receive project irrigation service, as shown in the following table. Area Milk Creek Little Beaver Total Irrigable land summary (acres) Irrigation Full Method Service Surface 2,250 Sprinkler 6,550 8,800 Supplemental Service 1,690 1,450 3,140 Total 3,940 8,000 11,940 Project plan The White River Feeder Conduit would convey water from the North Fork by gravity instead of by pumping as in the previous plan. The diversion point would be further upstream, as shown on the following map. The Yellow Jacket and Oak Ridge Conduits would be pressurized by gravity for year-round use by the coal industry and for sprinkler irrigation during the summer. More land would be irrigated with less water in the Little Beaver area because of the use of sprinklers. The coal industry water supply would be provided at a turnout along the Yellow Jacket Con- duit and in the Milk Creek Segment from Thornburgh Reservoir or at any point downstream as needed. " Recreational facilities would be provided at project reservoirs. Prescribed minimum fishery bypasses would be made to the North Fork of the White River at the project diversion point, and access easemen"s would be acquired along the river for fishermen. A big game management area would be established on Oak Ridge to mitigate project-caused wild- life losses. Project features Thornburgh Reservoir wOuld be constructed to the same capacity (36,000 acre-feet) as in all of the alternatives, but, because thiE plan would provide slightly less water to the Milk Creek Segment, the Morapos Feeder System would not be needed. Because of the absence of oil shale I 41