Drinking Water Advisories

Drinking water advisories let people know that tap water could be contaminated and make them sick. Advisories tell people, schools, hospitals, businesses, and others about the situation and how to take immediate action, if necessary. Water systems and state or local agencies issue these advisories when they have concerns about water contamination.

Dirty water from the supplying network

Advisories usually include one of these warnings:

  1. Boil Water Advisory – Tells customers to boil water before use. Authorities use this advisory when there is concern about germs in the water.
  2. Do Not Drink Advisory – Tells customers to use a different water source for drinking or cooking. Authorities use this advisory when there is concern about harmful chemicals or toxins in the water, and boiling will not make it safe to drink.
  3. Do Not Use Advisory – Warns customers not to use tap water for any purpose, including bathing. Authorities use this advisory when there is known contamination with germs, harmful chemicals, toxins, or radioactive material, and any contact with water could be dangerous.