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Lake Ontario and Minor Tribs WI/PWL

Lake Ontario (Minor Tribs) Basin

This is the most current Waterbody Inventory/Priority Waterbodies List (WI/PWL) water quality assessment information for the waters of the Lake Ontario (and Minor Tribs) Basin. The assessments are based on data and information collected through the 2008 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 water body segment 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 Lake Ontario (and Minor Tribs) Basin was completed in August 2007. This basin summary may not reflect more recent reassessment of some individual waterbodies.

Eastern Lake Ontario Basin HUC10 Watersheds

Eastern Lake Ontario Basin

Chaumont-Perch Sub-Basin
Salmon-Sandy Sub-Basin

Central Lake Ontario Basin HUC10 Watersheds

Central Lake Ontario Basin

Irondequoit-Ninemile Sub-Basin

Western Lake Ontario Basin HUC10 Watersheds

Western Lake Ontario Basin

Oak Orchard-Twelvemile Sub-Basin
Appendices

Assessment Methodology (PDF) (135 KB)

WI/PWL Data Sheet Definitions (PDF) (85 KB)

Index of Waterbodies (PDF) (109 KB) - Alphabetically and by county

Lake Ontario (and Minor Tribs) Basin Assessment

The most recent summary assessment of overall water quality in the entire Lake Ontario (and Minor Tribs) Basin was completed in August 2007. This basin summary may not reflect subsequent assessment of some individual waterbodies.

Basin Assessment (PDF) (933 KB) - Includes a brief summary of water quality in the entire basin.

Water Quality Assessment Map (PDF) (503 KB)

Previous WI/PWL Reports

The previous (August 2007) WI/PWL Report for The Lake Ontario (and Minor Tribs) Basin (PDF) (2.55 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.