Allegheny River WI/PWL
This is the most current Waterbody Inventory/Priority Waterbodies List (WI/PWL) water quality assessment information for the waters of the Allegheny River Basin. These assessments are based on data and information collected through the 2012 NYSDEC sampling season. Assessments for some individual waterbodies may have been subsequently updated have been subsequent updates where appropriate to reflect more recent information.
In order to ease viewing/downloading, this information has been segmented into separate smaller files. Individual water body segment Fact Sheets are grouped together by smaller watershed (10-digit Hydrologic Unit Code, or HUC 10). Use the map and HUC 10 index below to find, view and download the assessment portion (or portions) of the report of interest to you.
The Allegheny River Basin WI/PWL Report
The most recent summary assessment of water quality in the basin was completed in May 2007. This Basin Report may not reflect subsequently assessment of some individual waterbodies.
Introduction (PDF, 357 KB) - Includes the report cover, table of contents and description of the WI/PWL program.
Basin Assessment (PDF, 757 KB) - Includes a brief summary of water quality in the entire basin.
Water Quality Assessment Map (PDF, 895 KB)
Priority Waterbodies List (PDF, 54 KB) - Provides a summary list of PWL waters, use impacts, causes and sources.
Allegheny River Basin HUC 10 Watersheds
Upper Allegheny Sub-Basin (PDF, 209 KB)
- 0501000112 - Lower Allegheny Watershed
0501000108 - Middle Allegheny Watershed
0501000107 - Great Valley Creek Watershed
0501000106 - Tunungwant Creek Watershed
0501000105 - Upper Allegheny Watershed
0501000104 - Ischua Creek Watershed
0501000103 - Allegheny Headwaters Watershed
0501000102 - Oswayo Creek Watershed
Conewango River Sub-Basin (PDF, 171 KB)
- 0501000205 - Lower Conewango Creek Watershed
0501000204 - Middle Conewango Creek Watershed
0501000203 - Cassadaga Creek Watershed
0501000202 - Chautauqua Lake Watershed
- 0501000201 - Upper Conewango Creek Watershed
Brokenstraw Creek Sub-Basin (PDF, 48 KB)
0501000111 - Brokenstraw Creek Watershed
- 0501000110 - Little Brokenstraw Creek Watershed
French Creek Sub-Basin
- 0501000401 - West Branch French Creek Watershed (PDF, 519 KB)
Assessment Methodology (PDF, 132 KB)
WI/PWL Data Sheet Definitions (PDF, 82 KB)
Index of Waterbodies (PDF, 69 KB) - Alphabetically and by county.
For 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.