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Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Flood Water Health Precautions


Boil Drinking Water

If your water isn't safe, bring drinking water to a rolling boil for 1 minute to kill water - borne diseases. More on treating water.
Keep food & drinking water safe.
Dehydration in older adults.

Every effort should be made to limit contact with flood water due to potentially elevated levels of contamination associated with raw sewage and other hazardous substances.

EPA and the Department of Health and Human Services urge everyone in contact with flood waters to follow these guidelines:

EPA and HHS recognize that Hurricane Katrina has caused extraordinary circumstances and that people may not currently have access to clean water, vaccinations, doctors, or disinfecting soap. EPA and HHS encourage people in these extraordinary circumstances to adhere to the above guidelines as closely as is possible to limit exposure to possible water contaminants.

The public and emergency response personnel should follow guidelines from federal, state and local health and safety professionals. Early symptoms from exposure to contaminated flood water may include upset stomach, intestinal problems, headache and other flu-like discomfort. Anyone experiencing these and any other problems should immediately seek medical attention.

General precautions to reduce contact with contaminated flood include routine washing with soap, and not eating or drinking while in contact with flood water. These precautions can significantly help reduce potential exposure and illness. Anyone with open-wounds or pre-existing conditions should seek immediate consultation to prevent possible illness.

EPA and HHS will continue to provide more information to the public and responders as it becomes available. Again, the general public and responders should limit exposure to flood water and seek medical attention if they develop symptoms.

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