Build a pack
Build Your emergency supplies
Having an ample supply of clean water is a top priority in an emergency. A normally active person needs to drink at least 2 quarts (a half gallon) of water each day. You will also need water for food preparation and hygiene. Store at least an additional half-gallon per person, per day for this.
Store at least a 3-day supply and consider storing a two-week supply of water for each member of your family. If you are unable to store this much, store as much as you can. You can reduce the amount of water your body needs by reducing activity and staying cool.
And don't forget to take your pets and service animals into account!