Drinking Water

Showcasing the City’s award-winning, high-quality, great-tasting, healthy tap water—NYC Water—through its Water-On-the-Go program.

• NYC Water-On-the-Go

DEP regularly releases reports detailing its progress on becoming the safest, most effective, and transparent water utility in the nation.

• Drinking Water Supply and Quality Report
• Watershed Water Quality Annual Report (PDF)
• Filtration Avoidance Determination Annual Report (PDF)

Up to date information detailing the status of essential parts of New York City’s water supply system.

• Reservoir Levels
• How DEP Forecasts and Maintains Reservoir Levels
• Water Supply System Maps
• Ashokan Release Channel
• Groundwater System

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 and Giardia
• Waterborne Disease Risk Assessment Program
• Pharmaceutical and 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.

• History of the Water Supply System
• Historical Drought and Water Consumption Information Data