Dated percentages of usable storage reported by NYC DEP. Each named reservoir is shown separately; percentages are not added or averaged into a system total. Croton is a source-reported system figure. This snapshot does not establish a historical trend or drinking-water safety. No missing readings are estimated.
Cannonsville Reservoir usable storage
73.8 %Older report · 2026-09-25NYC Department of Environmental Protection
Published or effective 2026-09-25. Water Around last checked 2026-09-26T07:04:01.230737+00:00. This report may not describe conditions today.