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Atlantic Ocean/ Long Island Sound WI/PWL

Atlantic Ocean/Long Island Sound BasinThis is the most current Waterbody Inventory/Priority Waterbodies List (WI/PWL) water quality assessment information for the waters of the Atlantic Ocean/Long Island Sound Basin. The assessments are based on data and information collected through the 2009 NYSDEC sampling season. Individual assessment Fact Sheets for some waterbodies may have been subsequently updated where appropriate to reflect more recent information.

In order to ease viewing/downloading, this information has been segmented into separate smaller files. Individual waterbody Fact Sheets are grouped together by smaller watershed (10-digit Hydrologic Unit Code, or HUC 10 Watershed). Use the maps (separate maps for New York City Waters and Nassau/Suffolk County Waters) and associated HUC 10 index below to find, view and download the water quality assessment information for the waterbody of interest to you.

A summary assessment of overall water quality in the Atlantic Ocean/Long Island Sound Basin was completed in August 2011. This basin summary may not reflect more recent reassessment of some individual waterbodies.

Atlantic Ocean/Long Island Sound Basin HUC 10 Watersheds - NYC Waters

Bronx River Sub-Basin
Lower Hudson Sub-Basin
Sandy Hook/Staten Island Sub-Basin
Saugatuck Sub-Basin
Southern Long Island Sub-Basin

Atlantic Ocean/Long Island Sound Basin HUC 10 Watersheds - Nassau/Suffolk Waters

Northern Long Island Sub-Basin
Southern Long Island Sub-Basin

Appendices

Assessment Methodology (PDF) (177 KB) - Same for both volumes.

WI/PWL Data Sheet Definitions (PDF) (74 KB) - Same for both volumes.

Index of Waterbodies, NYC Waters (PDF) (236 KB)

Index of Waterbodies, Nassau/Suffolk Waters (PDF) (218 KB)

Atlantic Ocean/Long Island Sound Basin Assessment

The most recent summary assessment of overall water quality in the entire Atlantic Ocean/Long Island Sound Basin was completed in August 2011. This basin summary (presented in 2 separate reports) may not reflect more recent reassessment of some individual waterbodies.

Basin Assessment - NYC Waters (PDF, 998 KB) - Includes a brief summary of water quality in the New York City Metropolitan Waters portion of the basin.

Basin Assessment - Nassau/Suffolk Waters (PDF, 826 KB) - Includes a brief summary of water quality in the Nassau/Suffolk County Waters of the basin.

Previous WI/PWL Reports

The previous (August 2011) WI/PWL Report for The Atlantic Ocean/Long Island Sound Basin is also available. This report was also issued in two volumes: Volume 1 (PDF, 3.55 MB) covers waters in the New York City Metropolitan Area and Volume 2 (PDF, 5.10 MB) covers Nassau and Suffolk County Waters.

For additional information and answers to questions about this water quality assessment, please use the contact information at the right to reach us by e-mail, phone or in writing.