OCR Text |
Show PART V ALTERNATE LEVELS OF DEVELOPMENT Table 53 and 54 enumerate the water depletions by States, Hydrologic Subregions, and by time frames 1980, 2000, and 2020 for the 8.16 million- acre-foot level of development. Table 53 - Projected on-site water depletions by irrigated land (new and supplemental), incidental use, and irrigation reservoir evaporation by States-I98O, 2000, and 2020 (Unit-1,000 acre-feet per year) Year Arizona Colorado New Mexico Utah Wyoming Region 1980 2000 2020 7.0 7.6 9.0 1,391.1 1,792.5 1,9^1.5 245.0 411.0 411.0 576.6 660.6 733.7 431.5 53^.5 562.5 2,651-2 3,^06.2 3,657-7 Table $h - Projected on-site water depletions by irrigated land (new and supplemental), incidental use, and irrigation reservoir evaporation by Hydrologic Subregions--I98O, 2000, and 2020 (Unit--1,000 acre-feet per year) Year Green River Upper Main Stem San Juan-Colorado Region 1980 2000 2020 1,032.9 1,325.0 1,470.1 1,007.8 1,198.8 1,262.6 610.5 882.4 925.0 2 3 3 ,651.2 .,406.2 ,657.7 State Alternative for Water Supply Available at Site This is a plan of development which would be possible if the States of the Upper Colorado Region utilize water which would be physically available at the site of project development. There has been no agree- ment between the States or within the States that the plan can be accom- plished in the way indicated, but rather the plan shows the possible utilization of water that will be physically available for development. It is contemplated that there would be shifts between types of use as the needs develop. The plan would not meet Colorado River Compact re- quirements for delivery at Lee Ferry. This level is a measure of possible development in the region if ex- changes could be arranged and if the Colorado River is augmented at or below Lake Powell. Proper consideration of possible detriment to power revenues and of augmentation costs will be required. States have expressed interest in a regional plan at a level of de- velopment described above and have submitted data in Tables 55 and 56 as their choice under a plan which would utilize water supply available at site. |