Pepacton Reservoir
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The Pepacton Reservoir, also known as the Downsville Reservoir or the Downsville Dam, is a reservoir in Delaware County, New York that was formed by impounding over ¼ of the East Branch of the Delaware River. New York City purchased the valley in 1942, displacing 974 people, destroying four towns, and submerging nearly ½ of the Delaware and Northern Railroad in the process. The dam was finished in 1954, and the flooding was completed in 1955.
The reservoir is 12 miles (19.2 km) south of the village of Delhi, New York, and is 101 miles (161.6 km) northwest of New York City. The reservoir is a windy, narrow reservoir that is 15 miles (24 km) long and about 0.7 miles (1.12 km) wide at its widest. The reservoir contains 140.2 billion gallons (54.3 million m³) of water at full capacity, and is over 160 feet (43.2 m) deep at maximum. This makes it NYC's biggest reservoir by volume.
The Pepacton Reservoir supplies New York City with nearly 25% of its drinking water. The water flows through the reservoir, and then empties into the 25.5-mile (40.8-km) East Delaware Tunnel near the former site of Pepacton. The water travels through the aqueduct into the Rondout Reservoir, and empties into the 85-mile (136-km) Delaware Aqueduct. The water then flows into the Kensico Reservoir just north of The Bronx.