If the water supply to an establishment is shut off and there is no alternative potable water source:

When the water supply to an establishment is shut off and no alternative potable water source is available, the establishment must close until the water supply is restored. This is because water is essential for various critical functions in food service, including cooking, cleaning, and sanitizing surfaces and equipment. The absence of a reliable potable water source poses a significant risk of foodborne illnesses, as it compromises the establishment's ability to maintain sanitary conditions.

Without access to water, employees cannot perform necessary hygiene practices like handwashing, nor can they effectively clean food contact surfaces or equipment. Additionally, food preparation processes rely on water for safe cooking and food handling, further highlighting the need for potable water in a food establishment. Therefore, maintaining health standards and ensuring food safety is paramount, making the closure of the establishment the only viable option until the water supply is restored.

Using bottled water for food preparation or serving only pre-packaged drinks does not address the fundamental need for safe water in food service operations and could violate health regulations.