Drinking Water Supply and Quality Reports are prepared annually by the New York City Department of Environmental Protection in accordance with the New York State Sanitary Code and the National Primary Drinking Water Regulations of the United States Environmental Protection Agency, which require all drinking water suppliers to provide the public with an annual statement describing the sources and quality of its water supply.
The 2005 Distriution Sampling Site Plan provides a monitoring framework for New York city's drinking water supply distribution system which is consistent with new York State and federal regulations. The aim of the sampling program is to effectively monitor the water quality throughout the New York City water distribution system.