WSP02594 - Laserfiche WebLink

Home Browse Search

32 I I I I I I I I I I I I I I I I I I I and the water that would be provided for irrigation in Oklahoma Subregions I and II of the High Plains Region. The studies made by the Oklahoma Water Resources Board of Management under Strategy Four have updated the Northern Water Conveyance System with necessary adjustments to make the results compatible with the reporting and aggregating requirements of the High Plains Study. All key assumptions were reconciled with those in use for the High Plains Study. Delivery costs of imported water were not accounted for but on~farm di stribution costs and costs of pumping from a 10-foot depth were included. Allocations of costs among the areas and among the uses to be served were not made by the Board. The Northern Water Conveyance System as updated woul d deli ver about 800,000 acre-feet per year to Oklahoma Subregion I and approximately 52,000 acre-feet per year to Subregion II. Construction costs for the entire northern system woul d total $5.3 bi lli on in terms of 1978 doll ars, over a 30-year construction period. Cost Estimation An additional cost associated with the water transfer alternatives not presented in this section relates to water distribution costs from the ter- mi nal reservoi rs to the farm head gates . Di stri but i on system capital costs from the terminal reservoirs to farm headgates, estimated at about $2,150 per irrigated acre, are based on studies by the U.S. Bureau of Reclamation for the Oklahoma Comprehensive Water Plan. Environmental Effects* Alternative Strategy Four--Applicable only to Nebraska and Oklahoma. Could result in both positive and negative effects although weighted toward latter. Depletion of source streams and those below reservoirs, coupled with loss of riparian habitat, are greatest concerns. * Excerpted from U.S. Fish & Wildlife Service Report, November, 1981.