| Lake DeForest | |
|---|---|
 Lake DeForest viewed from nearby High Tor, a summit of the northern Hudson River Palisades. | |
  Lake DeForest  Lake DeForest | |
| Location | Clarkstown, New York, United States |
| Coordinates | 41°09′21″N 73°57′30″W / 41.1558°N 73.9584°W |
| Type | Reservoir |
| Primary inflows | Hackensack River |
| Basin countries | Newark Basin United States |
Lake DeForest, also called DeForest Lake,[1]: 195–213 is a reservoir in Clarkstown, New York, created in 1956 by impounding the Hackensack River, which is a principal part of the water supply for Rockland County, New York and Northern New Jersey, mainly Bergen and Hudson counties.[2] The reservoir is owned and operated by Suez North America, and is the most upstream of its reservoirs along the river's watershed, the others being Lake Tappan, the Woodcliff Lake Reservoir, and the Oradell Reservoir. It has a storage capacity of 5.6 billion gallons.[3][4][5][6] Swimming and bathing are prohibited because the water is reserved for potable use.[1]: 212 The lake is traversed by a causeway carrying Congers Road (CR 80).
- ^ a b Leiby, Adrian C. (1969), The Hackensack Water Company, 1869-1969, In collaboration with Nancy Wichman, Bergen County Historical Society, ASIN B0006C01Q0, OCLC 13847.
- ^ History of Hackensack Water Company/United Water Company
- ^ "Lake DeForest". Haverstraw Water Supply Project. United Water. Archived from the original on 2012-05-08. Retrieved 2012-10-27.
- ^ "Chapter 12.0: Infrastructure" (PDF). Rockland County Comprehensive Plan 280 DRAFT. United Water. September 1, 2010. Retrieved 2012-10-27.
- ^ "Water Sources in Rockland County". Superfund Research Program. Columbia University. Archived from the original on 2012-10-23. Retrieved 2012-10-27.
- ^ "Lake DeForest". USGS. Retrieved 2012-10-27.