Department of Environmental Conservation

D E C banner

New York City Water Supply System

New York City's water supply system is located in southeastern New York State and includes the following reservoirs: Ashokan, Schoharie, Cannonsville, Neversink, Pepacton, Rondout, and a number of reservoirs in the Croton Reservoir System.

Current reservoir levels are updated daily (link leaves NYSDEC website). Also discover how the NYC Department of Environmental Protection forecasts and maintains reservoir levels (link leaves NYSDEC website).

For more detailed information about the NYC Watershed, please visit the Facts about the NYC Watershed page.

The City also owns 68 wells (link leaves NYSDEC website) formerly owned by the Jamaica Water Supply Company located in Queens, N.Y. Find more information about the New York City Groundwater Supply System including the wells, usage, geology, water quality, and more (link leaves NYSDEC website).

For more information regarding groundwater in New York State, visit DEC's Groundwater pages.

New York City Reservoir Supply System