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Show TABLES (Continued) Number Page 37 Summary of projections of drainage costs. . . following page 84 38 Projected on-farm drainage required for presently irrigated lands ......... following page 84 39 On-farm drainage required for new land development................following page 84 4O Costs to provide project-type drains for presently irrigated lands ......... following page 84 41 Costs for project-type drainage of poten- tially irrigable lands...........following page 86 42 On-farm land development costs of new irrigated land. ... 87 43 On-farm system improvement program on presently irrigated land...............following page 88 44 Projected cost for non-Federal irrigation developments................following page 88 45 Projected costs for Federal irrigation developments .... 89 46 Projected irrigated acres for alternative levels of development by time frames (summary) ......... 90 47 Comparison of projected irrigated acreage require- ments between OBERS "as published" and the "Re- gional Interpretation"--1965 to 2020...........90 48 Projected on-site water depletions by irrigated land, incidental use, and irrigation reservoir evaporation by States for 6.5 million-acre- foot level of development--I98O, 2000, and 2020.....92 49 Projected on-site water depletions by irrigated land, incidental use, and irrigation reservoir evaporation by Hydrologic Subregions for 6.5 million-acre-foot level of development--I98O, 2000, and 2020......................92. 50 Projected on-site water depletions by irrigated land, incidental use, and irrigation reservoir evaporation for the State alternative at the 6.5 million-acre-foot level of development........92 51 Departure from regionally interpreted OBERS plan due to States' adjustment in irrigation use for 6.5 million-acre-foot level of development........93 52 Projected irrigated acres by States--I980, 2000, and 2020 at 8.16 million-acre-foot State alterna- tive level of development................95 53 Projected on-site water depletions by irrigated land, incidental use, and irrigation reservoir evaporation by States for 8.16 million-acre-foot level of development-1980, 2000, and 2020........96 54 Projected on-site water depletions by irrigated land, incidental use, and irrigation reservoir evaporation by Hydrologic Subregions for 8.16 million-acre-foot level of development-I98O, 2000, and 2020......................96 |
