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.-l 00 C"? Evaluation Area A Evaluation area A comprises 2,835 acres of presently irrigated land and 383 acres of new land. The new land is intermingled with presently irri- gated land and will likely be used to enlarge existing operating units. Evaluation area A lands will receive water either by diversion from East Rifle Creek or by pump from the Colorado River. The soils are deep, medium to fine textured, generally on slopes from 1 to 6 percent. They have medium water intake rates, moderate to slow per- meability in subsoil and substratum and high water holding capacity. Most of the project soils having saline, alkali and high water table problems are included in this evaluation area. Proposed project drainage, supple- mented by on~farm drainage, should correct these problems and result in crop yields equal to other lands in the evaluation area. Lands within this evaluation area can be farmed intensively and will produce high yields. All of the sugar beets now grown in the project area are on these lands and the majority of the expanded acreage of sugar beets with the proposed project is expected to be on these lands. Effectiveness of the past water supply has been increased by the improved distribution provided by use of the Harvey Gap Reservoir. There are 213 acres included within this evaluation area that have had a full water supply by pumping from Cactus Valley ~ttch. Benefits on these lands will be cal- culated separately from the other lands in this evaluation area. Presently irrigated lands will receive approximately .9 acre-foot per acre of addi- tional irrigation water and new lands will receive approximately 2.7 acre- feet per acre wi th developnent of the proposed project. Crop yields have been good but substantial improvement is expected from the addi tronal water. Evaluation Area B This evaluation area comprises 1,286 acres of presently irrigated land and 176 acres of new land. The new land is in small scattered tracts inter- mingled with presently irrigated land, and it is anticipated that the new lands will be added to existing farm units. Evaluation area B lands are intermingled wi th lands of evaluation area A. It is ve~ unlikely that a farm unit will have lands of evaluation area B only. Soils are similar to evaluation area A but slopes are steeper, generally from 6 to 12 percent. A small acreage is affected with water table, salt and alkali. Another small acreage has stones on the surface. Project drainage is not planned for the wet areas, but farm drains may be installed by individual operators. It is not anticipated that drainage or stone removal will be applied to the degree to develop these lands to their maximum productive capacity. Because of the steep slopes and the degree of developnent anticipated for these lands, types of crops will be restricted and crop yields will average lower than yields in evaluation area A. Cropping s,ystems will include - 6 -