If you don’t live in the New York City area, you might be surprised to learn that the big, crowded, congested city has some of the purest and safest drinking water in the world. That’s because it’s invested millions of dollars in protecting its drinking water, which comes from a system of reservoirs stretching up to 125 miles north of the city.

New Yorkers know they can just turn on the tap and drink clean, clear water. But how do you know if your own tap water is safe and fit to drink? And if it isn’t, what should you do? Buy bottled water? Put in a water filter? Invest in a purified water system?
Every municipality’s water is different, because they’re all coming from different sources. New York’s pure reservoir system requires less treatment and filtration than, say, Washington, D.C.’s water, which comes from the less-than-sparkling Potomac River.
“For the most part in the U.S., the water coming out …
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