Housekeeping · 비상 생활안전

Unsafe tap water advisory: six steps for boiling and chemical warnings

Follow local health authorities when tap water may be unsafe. Boiling kills germs, but cannot make fuel- or chemical-contaminated water safe.

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U.S. CDC

Original source: How to Make Water Safe in an Emergency | CDC (September 19, 2024)

Link card to the original U.S. CDC guidance

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After a water main break, outage or flood, drinking, brushing teeth and preparing food may all require safe water. Use the CDC guidance while following local advisories.

Your try-it-at-home checklist

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1. Check the latest local water utility or health department notice, especially whether it calls for boiling or says 'do not use'.
2. Use safe bottled water for drinking, food preparation, brushing teeth, ice and formula while water is unsafe.
3. If a boil-water notice concerns germs, filter cloudy water first. Bring clear water to a rolling boil for 1 minute, or 3 minutes above 6,500 feet elevation.
4. Let boiled water cool, then store it in a clean, sanitized, tightly covered container. Avoid scalds.
5. Boiling and disinfecting cannot remove fuel, toxic chemicals or radioactive material. Use an alternate safe source and contact the health department.
6. Keep following local instructions until officials lift the advisory, including any steps required before using the taps normally.

Original source: How to Make Water Safe in an Emergency | CDC (September 19, 2024)

Your try-it-at-home checklist

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