West Branch Reservoir

The West Branch Reservoir is a reservoir in the New York City water supply system. Formed by impounding the upper reaches of the West Branch of the Croton River, it is located in the Putnam County, New York, towns of Kent, New York, and Carmel, New York, about 50 miles north of New York City.
Put into service in 1895, West Branch is one of 12 reservoirs in the system's Croton Watershed, and second northernmost. It receives the flow of the upstream Boyds Corner impoundment, and, when needed, of Lake Gleneida, a controlled lake in the City supply system. Primarily, however, it receives water from the much larger Rondout Reservoir in the Catskill Mountains on the west bank of the Hudson River via the Delaware Aqueduct. It serves as a supplementary settling basin for these waters before releasing its flow back into the aqueduct to be carried to the Kensico Reservoir in southern Westchester County.

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