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Drinking Water Supply and Quality Report

Our annual New York City Drinking Water Supply and Quality Report describes the sources and quality of our water supply. It is prepared in accordance with the New York State Sanitary Code and the National Primary Drinking Water Regulations. If you have questions about any of the information contained in the report or would like to request a printed copy, please call 311.

New York City 2017 Drinking Water Supply and Quality Report

New York City 2017 Drinking Water Supply and Quality Report

Links referenced in the Drinking Water Supply and Quality Report


Programs for Landowners

Programs for Landowners and Homeowners



Monitoring for Cryptosporidium and Giardia



Groundwater Supply System



Lead in Drinking Water



Watershed Water Quality Annual Report (PDF)

Water Quality Reports from Previous Years