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Show NORTH PLATTE RIVER LITIGATION 777 Daily evaporation losses in second-feet for various sections of the river are shown in the following table: River Section Area -(Acres) Daily Loss (Second-Feet) May June July Aug. Sept. Alcova to Glendo Reservoir........___ ____ 6,740 43 61 70 61 45 Guernsey Reservoir to Whalen 560 4 16 5 22 6 25 5 22 4 16 Whalen to State Line .. . 2,430 Above table is based upon mean evaporation at Pathfinder as follows: May 0.561 ft.; June 0.767 ft.; July 0.910 ft.; Aug. 0.799 ft.; Sept. 0.568 ft. Co-efficient of 70% to reduce pan record to open water surf ace. Above table does not contain computed loss for section of river from Glendo Dam to head of Guernsey Reservoir (area 680 acres) because this area is less than submerged area of original river bed (940 acres) in Glendo Reservoir and is, therefore, con- sidered as off-set. Above table does not contain computed loss for section of river from Pathfinder Dam to head of Alcova Reservoir (area 170 acres) because this area is less than submerged area of original river bed in Alcova Reservoir and is, therefore, considered as off-set. Likewise the area between Seminoe Dam and head of Path- finder Reservoir is less than area of original river bed through Pathfinder Reservoir-considered as off-set. Evaporation losses will be divided between natural flow and storage water flowing in any section of river channel upon a proportional basis. This proportion will ordinarily be determined at the upper end of the section except under conditions of intervening accruals or diver- sions that materially change the ratio of storage to natural flow at the lower end of the section. In such event the average propor- tion for the section will be determined by using the mean ratio for the two ends of the section. In the determination of transportation losses for the various sec- tions of the stream, such time intervals for the passage of water from point to point shall be used as may be agreed upon by Nebraska, Wyo- ming and the United States, or in the absence of such agreement, as may be decided upon from day to day by the manager of the govern- ment reservoirs, with such adjustments to be made by said manager from time to time as may be necessary to make as accurate a segrega- tion as is possible." Reference to the decree as thus modified will be found in the Joint Resolution of July 16,1954 (68 Stat. 486) which approved the definite plan report of the Secretary of the Interior for the Glendo unit of the Missouri River Basin project and directed that that unit be con- structed and operated m accordance with the report and with the modified decree. 94-497-69------50 |