Delaware River WI/PWL
This is the most current Waterbody Inventory/Priority Waterbodies List (WI/PWL) water quality assessment information for the waters of the Delaware River Basin. The assessments are based on data and information collected through the 2002 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 HUC10 Watershed). Use the map and HUC10 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 Delaware River Basin was completed in May 2002. This basin summary may not reflect more recent reassessment of some individual waterbodies.
Delaware River Basin HUC10 Watersheds
Upper Delaware River Sub-Basin
- 0204010101 - Upper West Branch Delaware River (PDF) (237 KB)
- 0204010102 - Middle West Branch Delaware River (PDF) (289 KB)
- 0204010103 - Lower West Branch Delaware River (PDF) (196 KB)
- 0204010104 - Upper Delaware River (PDF) (165 KB)
- 0204010105 - Middle Delaware River (PDF) (190 KB)
- 0204010106 - Lower Delaware River (PDF) (171 KB)
East Branch Delaware River Sub-Basin
- 0204010201 - Willowemoc Creek (PDF) (195 KB)
- 0204010202 - Beaver Kill (PDF) (174 KB)
- 0204010203 - Upper East Branch Delaware River (PDF) (176 KB)
- 0204010204 - Middle East Branch Delaware River (PDF) (173 KB)
- 0204010205 - Lower East Branch Delaware River (PDF) (204 KB)
Middle Delaware-Mongaup Sub-Basin
- 0204010401 - Mongaup River (PDF) (266 KB)
- 0204010402 - Basher Kill (PDF) (163 KB)
- 0204010403 - Neversink River (PDF) (283 KB)
- 0204010405 - Delaware-Halfway Brook (PDF) (226 KB)
Assessment Methodology (PDF) (613 KB)
WI/PWL Data Sheet Definitions (PDF) (198 KB)
Index of Waterbodies (PDF) (113 KB) - Alphabetically and by county.
Delaware River Basin Assessment
The most recent summary assessment of overall water quality in the entire Delaware River Basin was completed in December 2002. This basin summary may not reflect more recent reassessment of some individual waterbodies.
Basin Assessment (PDF, 329 KB) - Includes a brief summary of water quality in the entire basin.
Previous WI/PWL Reports
The previous (December 2002) WI/PWL Report for the Delaware River Basin (PDF) (1.86 MB) is also available.
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.