It was formed by the damming of Bog Brook, a small tributary of the East Branch of the Croton River. The reservoir was put into service in 1892, making it one of the older in the system.
The construction of a reservoir by damming Bog Brook, a small tributary of the East Branch of the Croton River, led to its use for water storage and management. The reservoir was put into operation in 1892, making it one of the oldest within the system.