Croton River watershed

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.

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.

It is not synonymous with the Croton Watershed, a term describing the rivers, reservoirs, dams, pump systems, and other infrastructure of the southernmost watershed of the New York City water supply system.

Numerous small natural lakes and ponds, as well as large Lake Mahopac, are within the river's watershed but not owned, leased, or controlled by the City water supply system (even though they too ultimately drain into it).

Excess water leaves the spillway at the New Croton Dam and empties into the Hudson River at Croton-on-Hudson, New York at Croton Point, about 30 miles (50 km) north of New York City.

Map of the Croton River watershed. Note that this is not identical with the New York City water supply system 's Croton Watershed [ a ]
The three branches of the Croton River are collected at the New Croton Reservoir . Flow in excess of New York City's needs goes over a spillway at the New Croton Dam there and discharges into the Hudson River
The Croton River at Purdys