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Drinking Water

New York City drinking water is world-renowned for its quality. Each day, more than 1 billion gallons of fresh, clean water is delivered from large upstate reservoirs—some more than 125 miles from the City—to the taps of nine million customers throughout New York state.

NYC Water Supply System

NYC Water Supply System
Up to date information detailing the status of essential parts of New York City’s water supply system.
Reservoir Levels
Current Releases
Croton Water Distribution Maps
How DEP Forecasts & Maintains Reservoir Levels
Water Supply System Maps
Ashokan Release Channel
Groundwater System


NYC Water On the Go
New York City is fortunate to be able to enjoy some of the best drinking water in the nation. Stop by one of our portable water fountains this summer to fill up a water bottle, take a sip, or keep your four-legged friend hydrated—we’ll be in all five boroughs. Just look for the bright blue tent!
Fountain locations and hours

Water faucet

DEP regularly releases reports detailing its progress on becoming the safest, most effective, and transparent water utility in the nation.
Drinking Water Supply & Quality Report
Filtration Avoidance Determination Reports
Watershed Water Quality Annual Report (PDF)

Sampling Station

Monitoring NYC Water Supply
DEP monitors New York City’s water supply system with over 1,200 sampling stations located throughout New York City, and more than 200,000 tests performed in the Watershed.
Cryptosporidium & Giardia
Drinking Water Sampling Stations
Lead in Drinking Water
Pharmaceutical & Personal Care Products
Watershed Water Quality Monitoring Plan (PDF)
Schoharie Seiche FAQ (PDF)
Waterborne Disease Risk Assessment Program

New York City Watershed

Historical Information
The history of New York City’s water supply system goes back hundreds of years.
History of the Water Supply System
Historical Drought & Water Consumption Information Data

Reservoir Levels

Current: %

Normal: %