The water source for the city of Troy, New York, is the Tomhannock Reservoir, a man-made reservoir 10.5 km northeast of Troy in the town of Pittstown. The reservoir is 8.9 km long, and holds 47,000,000 m3 when full. Water quality is good to excellent. Licensed fishing (both warm-weather and ice fishing) is a popular recreational activity. The reservoir supplies water to about 50,000 residents in Troy, as well as to about 85,000 residents in the nearby municipalities of Brunswick, East Greenbush, Halfmoon, Menands, North Greenbush, Poestenkill, Rensselaer, Schaghticoke and Waterford.
