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c'"' co 1.-''') E. ..-I ;'~) C.l Conveyance Channel Water Management Structures Three conveyance channel turnout structures each with a capacity to deliver 4,500 acre-feet per year will be provided on the Alamosa NWR. One turnout structure will be located near the intersection of the conveyance channel and the Chicago ditch, while a second turnout structure will be near the Mum ditch. Both of these structures will divert waters from the channel by gravity. A third turnout structure will be located near the intersection'of the conveyance channel and the Denver and Rio Grande railroad. Water diverted from this turnout will have to be pumped. Two conveyance channel turnout structures with a total capacity of 800 acre-feet per year will be provided on the Blanca WHA. One turnout structure will be located on the Blanca WHA on the north edge of the W. 1/2 sec. 4., T. 38 N., R. 12 E.; the second turnout will be located on southern portion of Blanca WHA near the existing Mallard 4 pond. Waters from the channel will be diverted by gravity. F. Replacement of Structures Some irrigation structures could be affected due to conveyance channel construction through Alamosa NWR. The conveyance channel would cross the Chicago and ~fum ditches, two smaller canals, and one road in the Alamosa NWR. The two ditches and two canals would be siphoned under the conveyance channel, while the channel would be siphoned under the road. In addition to turnout structures described in section E above, a deep artesian well capable of deliv- ering 800 acre-feet of water in 90 days would be provided. Artesian water rights for the deep well would be transferred to Alamosa NWR after Emperious Estate lands are acquired. A canal west of the third northernmost turnout could be provided if the deep artesian well proved unfeasible. Approximately 4,000 linear feet of existing dikes and 10 waterfowl nesting islands (which provide waterfowl habitat) will no longer be intensively managed as a result of conveyance channel construction through the Blanca WHA. The project water to be used on Blanca WHA to mitigate drawdown pumping effects resulting from the project should be deHvered to these affected lands. To accomplish this purpose, approximately 3,400 linear feet of pipe lateral, 2,500 linear feet of ditches, and an energy dissipating pipe outlet structure will be needed to deliver conveyance channel water from the northern turnout to affected lands. Approximately 4,000 linear feet of dikes, 1,700 linear feet of ditches, 150 linear feet of pipe lateral, and an energy dissipating pipe outlet structure will be needed to deliver water to affected lands. Ten duck-nesting islands will also be provided. Funds to accomplish the construction of the above structures will be provided. G. Land and Water Right Acquisition The west 1/2 sec. 4, T. 38 N., R. 12 E. will be acquired in fee .with appurtenant water rights to replace lands lost by conveyance channel construction, severance 16