NEW-YORK RESERVOIR REPORT

Last Updated: December 21, 2025

New York State has several major reservoirs and dams, including the Ashokan Reservoir, the Cannonsville Reservoir, and the Pepacton Reservoir. These reservoirs are fed by several streams, rivers, and creeks, including the Esopus Creek, the West Branch Delaware River, and the Beaver Kill. The hydrology in the area is affected by the snowpack and mountains, which can significantly impact streamflow and water levels in the reservoirs. Record levels have been observed in some reservoirs in the past, but drought conditions have also been a concern, particularly during the summer months. Seasonal trends often show lower water levels in the fall and winter, with increased flows during the spring snowmelt and summer rainfall. Overall, these reservoirs play a vital role in providing clean drinking water to millions of New Yorkers while also providing opportunities for recreation and tourism.

New York State has several major reservoirs and dams, including the Ashokan Reservoir, the Cannonsville Reservoir, and the Pepacton Reservoir. These reservoirs are fed by several streams, rivers, and creeks, including the Esopus Creek, the West Branch Delaware River, and the Beaver Kill. The hydrology in the area is affected by the snowpack and mountains, which can significantly impact streamflow and water levels in the reservoirs. Record levels have been observed in some reservoirs in the past, but drought conditions have also been a concern, particularly during the summer months. Seasonal trends often show lower water levels in the fall and winter, with increased flows during the spring snowmelt and summer rainfall. Overall, these reservoirs play a vital role in providing clean drinking water to millions of New Yorkers while also providing opportunities for recreation and tourism.