A normally active person needs to drink at least two quarts a day.
Hot environments can double that amount.
Children, nursing mothers, and ill people will need even more. You will also need water for food preparation and hygiene. Store a total of at least one gallon per person per day. You should store at least a two-week supply of water for each family member. In the event that the County is under a Boil Water Emergency, it is important to know a few facts about what to expect.