Western Water
The south western parts of the US have a history of water problems. In the 4 corners area, there are ruins from natives that had a brief few hundred years of living off the land but suddenly abandon their dwellings because of long term drought. The land is good for agriculture but only if enough water is brought in to supplement the local resources. Colorado River water has been allocated along the river and there have been water wars over who can take water and how much.
Drinkable water is only 1% of all the water on Earth. There is a lot locked up in polar ice and glaciers. Water is becoming more difficult to share among cities, agriculture, manufacturing, recreation and environmental needs. Mean while, people are buying bottled water transported from Fiji and other places at a cost that is higher than the local tap prices.