Water is essential
Plan A: Store Emergency Water
Store enough emergency water for your family to survive for 2 weeks, according to recommendations by FEMA and emergency response agencies. Calculate how much you need.
At a minimum, store 1 gallon of water per day per person and pet for 2 weeks.
Add a gallon for each batch of rice or noodles you might cook during a two-week period.
Consider storing more water than this for pregnant women, people who are sick, pets, or if you live in a hot climate.
Plan B: Acquiring & Treating Outside Water. In case you run out of emergency water, have a backup strategy, Plan B. Step 1: Determine your local sources of non-potable water
https://www.cdc.gov/water-emergency/about/how-to-create-and-store-an-emergency-water-supply.html
https://www.neighborsready.org/uploads/1/4/2/8/142830157/emergency_water_planning_worksheet.pdf
How to Make Water Safe in an Emergency
After an emergency, your tap water may not be available or safe to use.
Use bottled, boiled, or treated water to avoid getting sick.
Boiling is the best way to kill germs in water.