Half of global population people don’t have water works and use ground water.
There are about 110 million people in whole world not to get safe water.
Among them,

570 million people in Asia

320 million people in Africa

They are forced to use insalubrious water.
United Nations say that a person need 50L water in a day to have a good life.
5L for drinking, 20L for health, 15L for taking a shower, 10L for cooking.
There are a lot of country whose people hard to get 50L water.
Even now, there are many places where you can’t get safe water constantly.