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Emergency Disinfection of Drinking Water
Information about methods for emergency disinfection of drinking water, including boiling and chemical treatment (using chlorine bleach or household iodine). Site also notes that murky or colored water should be filtered "through clean cloths or allow[ed] it to settle" before disinfecting. "Water prepared for disinfection should be stored only in clean, tightly covered, containers, not subject to corrosion." Available in English and Spanish. From the U.S. Environmental Protection Agency (EPA).
http://www.epa.gov/safewater/faq/emerg.html

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