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How to find and prepare safe drinking water-anywhere, any time! Clean drinking water may be the last thing we think about day to day-but it's the first thing we need in an emergency. Now, survival expert and biologist Joe Vogel explains how to find, treat, and store safe drinking water-even in the most extreme conditions. A Field Guide to Clean Drinking Water includes information about: *The role of water in the body and how to calculate your water requirement *Plants, geographical features, and more indicators that signal the presence of water *How to collect dew and precipitation, and extract water from plants *How to screen 'raw water' for bacteria, pesticides, and other contaminants *Every purifying method from boiling techniques to chemical disinfection *And storage options that meet every need.Small enough to take anywhere-and broad enough to cover everything-this is a vital manual for backpackers, survivalists, and anyone who may need to know how to create their own drinking water.