Use treated municipal tap water
Boil water for at least 1 minute
Use a certified water filter
Collect rainwater and filter it before use
Use bottled water from a trusted source
Find a protected spring or well
Avoid water that looks cloudy, smells bad, or has debris
Test water for bacteria and contaminants
Purify water with chlorine or purification tablets
Distill water when possible
Store water in clean, covered containers
Keep water away from sewage, chemicals, and animal waste