The Oradell Reservoir is a large water supply reservoir located in Bergen County, New Jersey. It was created in the early 20th century to provide drinking water for the surrounding communities. The reservoir is fed by the Hackensack River and serves as a crucial resource for local water needs. Covering approximately 1,200 acres, the reservoir is surrounded by parkland and offers recreational opportunities such as fishing and birdwatching. It is managed by the North Jersey District Water Supply Commission, which ensures the water quality and availability for residents in the area.