Irrigation and water in Desert regions

[Tuuvi]

I don't know if anybody has ever mentioned this before, but I think that there should be buildings for water and irrigation in desert regions. For example, wells could provide public order and health bonuses, and irrigation ditches would be required to build the next level of farms. I live in a desert, and the local government here has to spend a lot of money on reservoirs, wells, water conservation and such. I think buildings such as these would add to the realism of EB and would help represent what it like to live in arid regions.