In Terms of Backcountry Water Treatment, When is Water Considered Safe to Drink?

Brown, silty streams, tea-colored rivulets, even clear, ice-cold lakes—any backcountry water source can serve up a cocktail of contaminants. But not everything that’s present in an undeveloped water source is necessarily harmful, and only some things pose an immediate threat to your health. In fact, it’s impractical and unnecessary to remove everything, all the time. So, in terms of backcountry water treatment, when is water considered safe to drink?

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Water 101: Safe Water Treatment Solutions for International Travelers

Whether you’re planning a backcountry trip or an urban adventure abroad—say, an Annapurna Circuit trek in Nepal, or a cultural tour of its capital, Kathmandu—you’ll want to take extra precautions with your drinking water. In many developing countries, both municipal drinking water and backcountry water are prone to viruses in addition to bacteria and protozoa. Bringing a water purification system with you is a smart way to help protect you from viral infections that can jeopardize your health, not to mention ruin your vacation. There are a few water treatment options available to you that target different qualities of water. A general rule when treating water is to start with the clearest water possible, but sometimes your options are limited. Here’s what you should know about treating water when traveling…

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