Drinking Water Advisories

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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.

Advisories usually include one of these warnings:

Tells customers to boil water before use.


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Tells customers to use a different water source for drinking or cooking.

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Warns customers not to use tap water for any purpose, including bathing.

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Drinking Water Advisory Communication Toolbox
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The Drinking Water Advisory Communication Toolbox provides information for water utilities on how to plan for, develop, implement, and evaluate communication activities with the public and stakeholders during drinking water notifications and advisories.