Water shortages are generally divided into two categories: physical water shortages (water shortages due to local ecological conditions); and economic shortages when water infrastructure is insufficient.
The two often together cause water pressure.
For example, stressed areas may lack both rainfall and adequate water storage and sanitation facilities. Experts say that even if the major natural causes of water shortages in the area, human factors are often at the center of the problem, especially in terms of access to clean water and safety and sanitation. Mark Giordano, a water management expert at Georgetown University, said: “The problem of drinking water is almost always not related to physical water shortages.” He said: “This is related to the lack of funding and political resources, but the lack of funding and infrastructure Can’t provide people with clean water. It’s separate.
At the same time, in Oman and the southwestern United States, some water-poor areas have the infrastructure that enables local life to flourish. From the national level to local jurisdictions, various authorities manage or otherwise affect water supply. In the United States, there are more than six federal agencies dealing with different aspects of water: the Environmental Protection Agency (EPA) implements regulations on clean water, and the Federal Emergency Management Agency (FEMA) prepares for and responds to floods. There are similar agencies at the state and local levels to protect and monitor water use, including through zoning and restoration projects.
with information from: https://www.cfr.org/backgrounder/water-stress-global-problem-thats-getting-worse