Water Supply

Reservoir Levels

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New York City’s Water Supply System

New York City’s
Water Supply System

September 27, 2021

Total Storage (% of Capacity)
Current: 95.3
Normal: 76.8
Consumption (billion gallons)
9/26/21 1.02
Average Precipitation (inches)
  Actual Historical
July: 9.02 4.37
August: 5.26 4.29
September: 6.55 3.61

Croton System
Capacity: 91.6B gallons
% of Capacity: 100.3

Neversink Reservoir
Capacity: 34.9B gallons
% of Capacity: 96.9

Rondout Reservoir
Capacity: 49.6B gallons
% of Capacity: 97.1

Pepacton Reservoir
Capacity: 140.2B gallons
% of Capacity: 94.7

Schoharie Reservoir
Capacity: 17.6B gallons
% of Capacity: 92.5

Cannonsville Reservoir
Capacity: 95.7B gallons
% of Capacity: 91.4

Ashokan Reservoir
Capacity: 122.9B gallons
% of Capacity: 94.6

For additional near real-time information on surface water conditions in the New York City Watersheds, go to the USGS for New York State.