Lake DeForest

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Lake DeForest
Lake DeForest High Tor.jpg
Lake DeForest viewed from nearby High Tor, a summit of the northern Hudson River Palisades.
Location Clarkstown, New York,
United States
Coordinates 41°09′21″N 73°57′30″W / 41.1558°N 73.9584°W / 41.1558; -73.9584 (Lake Deforest)Coordinates: 41°09′21″N 73°57′30″W / 41.1558°N 73.9584°W / 41.1558; -73.9584 (Lake Deforest)
Type Reservoir
Primary inflows Hackensack River
Basin countries Newark Basin
United States

Lake DeForest is a reservoir in Clarkstown, New York created in 1956 by impounding the Hackensack River that is part of the water supply for Rockland County, New York and Northern New Jersey, notably Bergen and Hudson counties. It was originally developed by the Hackensack Water Company which had been under the direction Robert W. de Forest from 1881 to 1926.[1] It is now owned and operated by United Water and is the most upstream of its three reservoirs along the river, the others being Lake Tappan and the Oradell Reservoir. It has a storage capacity of 5.6 billion gallons.[2][3][4][5] The lake is traversed by a causeway carrying Congers Road (CR 80).

See also[edit]


  1. ^ History of Hackensack Water Company/United Water Company
  2. ^ "Lake DeForest". Haverstraw Water Supply Project. United Water. Retrieved 2012-10-27. 
  3. ^ 1956 "Chapter 12.0: Infrastructure". Rockland County Comprehensive Plan 280 DRAFT. United Water. September 1, 2010. Retrieved 2012-10-27. 
  4. ^ "Water Sources in Rockland County". Suoerfund Research Program. Columbia University. Retrieved 2012-10-27. 
  5. ^ "Lake DeForest". USGS. Retrieved 2012-10-27.