May 27, 2009
2 Week Emergency Water: How Much Do You Store?
24 Gallons Per Person for 2 weeks
Drinking Water: 7 gallons per person
Cooking/Food Prep Water: 10 gallons per person
Sanitation/Cleaning Water: 7 gallons per person
I've always used the 14 gallon per person idea, and promoted it, until I actually made my menus. If your food preparation requires boiled water or rehydration at all, you will want to think about more water than just 1 gallon a day for two weeks. Some sources recommend 1 1/2 gallons per person per day. Mine is a little bit more than that. "It is advised only to use the water from your toilet tank, waterbed, or swimming pool as a last resort, since these sources may have chemicals present making them non-drinkable." (source USU, see below)
In a major disaster, you may not have emergency water trucked in to your area for at least a week, and we don't evacuate from every disaster. So think carefully about the amount you store. Have a plan that works for your family.