Many deserts do have a limited amount of ground water. If you keep pumping it to the surface not only will be gone soon, it may never replenish as underground a

Many deserts do have a limited amount of ground water. If you keep pumping it to the surface not only will be gone soon, it may never replenish as underground aquifers collapse and the soil compacts. I'm not an expert, but this is what I've been told. Also, that's how you get sinkholes.