Drinking Water Supply and Quality Report

The New York City Department of Environmental Protection (DEP) is pleased to present its 2010 Annual Water Supply and Quality Report. This report was prepared in accordance with the New York State Sanitary Code, and the National Primary Drinking Water Regulations, promulgated by the United States Environmental Protection Agency (EPA). The regulations require all drinking water suppliers to provide the public with an annual statement describing the sources and quality of its water supply.

• 2010 Water Quality Report (PDF)
• 2011 Turbidity Notice 

Links Referenced in the 2010 Water Quality Report:

• Track Your Water Use Online
• Free Residential Leak Survey
• NYC Groundwater System
• Lead in Drinking Water
• Monitoring for Cryptosporidium and Giardia
• DEP Watershed Protection Programs

Water Quality Reports from Previous Years

• 2009 (PDF)
• 2008 (PDF)
• 2007 (PDF)
• 2006 (PDF)
• 2005 (PDF)
• 2004 (PDF)
• 2003 (PDF)

2002 Water Quality Report

• Pages 2, 4, 5 (PDF)
• Pages 6, 8- 10 (PDF)
• Pages 14 - 16 (PDF)
• Maps (PDF)
• Water Quality Testing Results (PDF)

2001 Water Quality Report

• Pages 2 - 6 (PDF)
• Pages 7- 11 (PDF)
• Pages 12 - 16 (PDF)

2000 Water Quality Report

• Pages 1 - 5 (PDF)
• Pages 6- 10 (PDF)
• Pages 11 - 16 (PDF)

1999 Water Quality Report

• Pages 1 - 10 (PDF)
• Pages 11 - 16 (PDF)

1998 Water Quality Report

• 1998 Report (PDF)
• 1998 Data Tables (PDF)

1997 Water Quality Report

• 1997 Report (PDF)
• 1997 Data Tables (PDF)