GAP is estimated to double Turkey's irrigable farmland. The width of the irrigable valleys range from . "pasture", "irrigable"; and "bay" (Santa Monica Bay). The oasis had about of irrigable land, which surrounded the city. These are mostly the irrigable rice lands. Only non-irrigable lands were open for entry; those that were deemed irrigable were not eligible. Irrigable lands, population, and technicalities of projects define "needs". The smallest amount was irrigable land, just 3-4%. It sold irrigable land and advised settlers in the best farming and irrigation methods.