Helpful Hint: Rule of Three

Three Minutes – You can survive about three minutes in unsafe air.

  • Ensure that the atmosphere in your home is safe by having a working carbon monoxide detector.

Three Hours You can survive about three hours at a dangerous temperature.

  • Protect your family with winter clothes, blankets and an alternate heat source when cold emergencies arise
  • Ensure you have a way to stay cool and hydrated in a heat-related emergency.

Three Days – You can survive about three days without water.

  • Store at least a two-week supply of clean water—Two gallons per day per person. This would be 28 gallons per person for 2 weeks.

Three Weeks – You can survive about three weeks without food.

  • Purchases a food thermometer. Hot foods should stay hotter than 140 degrees F and cold foods should be kept below 40 degrees F.


All Hazards Public Health Emergency Preparedness and Response Guide


For further information, contact a Emergency Response Coordinator.


Ronnie Nieves

Emergency Response Coordinator



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Our mission is to protect and promote the health of all San Juan County residents by preventing illness and injury, establishing and promoting healthy environments, advocating policy based on scientific knowledge of issues relating to public health, promoting services which address personal health and well-being, informing and educating the community regarding issues of public health, and providing a committed, educated and effective public health professional work force.