In an effort to protect the environment, people can drink alkali water if it is at least 50 degrees Fahrenheit, the Environmental Protection Agency said in a statement on Tuesday.
The agency said people should drink alkale water if they have no symptoms and are not thirsty.
Alkali water is not an approved drinking water source, the EPA said, because it has not been tested for toxins.
In addition, people should not drink alkalin water while pregnant, nursing or under the influence of any drug, inhalant or toxin.
The EPA also said people who have been drinking water that contains arsenic or lead, or who are not properly trained to drink it, should drink water that has been filtered and sanitized.