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
Up to date information detailing the status of essential parts of New York City’s water supply system.
- Reservoir Levels
- Current Releases
- 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!
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
- Watershed Water Quality Annual Report (PDF)
- Filtration Avoidance Determination Annual Report (PDF)
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
- Waterborne Disease Risk Assessment Program
- Pharmaceutical & Personal Care Products
- Drinking Water Sampling Stations
- Lead in Drinking Water
The history of New York City’s water supply system goes back hundreds of years.