This page is about the Croton River watershed, a hydrological feature. For the component of the New York City water supply system with a similar name, see Croton Watershed
The Croton River watershed is the drainage basin of the Croton River and its seven tributary rivers, a hydrological feature in southeastern New York State. Spanning large swaths of Putnam and Westchester counties, it is over 350 square miles (910 km2) in area and holds some 115 billion US gallons (440,000,000 m3) of fresh water. [b]
Largely physically overlapping the New York City water supply system's Croton Watershed,[c] the Croton River watershed represents the drainage and flow of some seven rivers, one dozen reservoirs, three controlled lakes,[1] large Lake Mahopac, and countless smaller lakes and ponds.
The vast majority of this[d] water ends up at the Jerome Park Reservoir in the Bronx via the New Croton Aqueduct, from which it is distributed to New York City. Water in excess of the City's needs spills over the New Croton Dam at the New Croton Reservoir and is carried by the Croton River into the Hudson River at Croton-on-Hudson, New York, about 30 miles north of the Metropolitan area.
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