The New York City Water Supply System provides one billion gallons of safe drinking water to New York City’s 8.5 million residents every day. The system also provides about 110 million gallons a day to one million people living in Westchester, Putnam, Orange, and Ulster counties.

Water, substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful of compounds and has the important ability to dissolve many other substances, which was essential to the development of life.

New York State’s drinking water programs help ensure that public water supplies are protected and regularly monitored, and water treatment operators are properly trained and certified.

Stay informed with SCWA's real-time maintenance map and access to quality water services at the lowest cost. Visit the website for more details.

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Tides and storms claw away at coastlines. And water locked in Earth's crust actually has a role in moving the giant continents below our feet. Over millions of years, the Grand Canyon was sculpted by the moving Colorado River. Long ago, massive moving glaciers scraped deep grooves into rocks in Central Park in New York City.

How much water should you drink each day? It's a simple question with no easy answer. Studies have recommended drinking different amounts over the years. But how much water a body needs may be different for each person. It depends on many things, including your health, age, how active you are, where ...