A boil water advisory can be issued under a number of circumstances from natural disasters, like in the aftermath of hurricanes and winter storms, to sudden emergencies like a water main break.
The notices are issued when an area's water is, or could be, contaminated with bacteria that could make you sick.
Boiling kills disease-causing organisms, including viruses, bacteria and parasites.
You'll want to boil water before you do anything that involves human consumption, such as drinking, cooking, and brushing your teeth.
The following information is from the Centers for Disease Control and Prevention.
Here are some common questions and answers about boil water advisories.
If you have bottled water available for drinking and to prepare and cook food, you can use that. But if bottled water isn't available, it's advised you:
Note that many cities and communities surrounding the Houston area said you can boil the water for at least two minutes.
SEE ALSO: Boil orders in effect for much of the Houston area
Only brush teeth with boiled or bottled water. Do not use untreated tap water.
You can use the water for bathing and showering, but you must be careful not to swallow it. Use extra caution when bathing babies and young children. Consider giving them a sponge bath instead.
According to the CDC, it is safe to wash clothes as usual. But you'll need to follow a few more guidelines for dishes.
Use bottled water, boiled water, or water that has been disinfected with bleach to clean washable toys and surfaces.
Follow these CDC guidelines carefully as it relates to using bleach.
Provide bottled or boiled water after it has been cooled for pets. Why? Because they can get sick by some of the same germs as people or pets can even spread germs to people.
You'll need to follow the order until your local health or city officials have deemed it safe to end it and resume consumption.