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Lake Ontario and Minor Tribs WI/PWL

The most recent Lake Ontario and Minor Tribs Basin Waterbody Inventory/Priority Waterbodies List Report was issued as a Final Draft Report in August 2007. This report includes an overall evaluation of water quality in the Lake Ontario (Minor Tribs) Basin, as well as assessments for specific waterbody segments in the basin.

Lake Ontario (Minor Tribs) Basin

You may chose to view/download the entire Lake Ontario and Minor Tribs Basin Waterbody Inventory/Priority Waterbodies List Report (PDF) as one large file (2.55 MB), or in order to ease viewing/downloading, the information in this report has been segmented into separate smaller files. Use the index below to find, view and download the portion (or portions) of the report of interest to you.

The next review and update of the water quality assessments for waters in this basin is scheduled to be conducted in 2009.

The Final Draft Lake Ontario (Minor Tribs) Basin WI/PWL Report

Introduction (PDF) (370 KB) - Includes the report cover, table of contents and description of the WI/PWL program.

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

Water Quality Assessment Map (PDF) (503 KB)

Priority Waterbodies List (PDF) (85 KB) - Provides a summary list of PWL waters, use impacts, causes and sources.

Waterbody Inventory and Segment Data Sheets

Lake Ontario Shoreline (PDF) (268 KB)

Eastern Lake Ontario Watershed (PDF) (196 KB)

Central Lake Ontario Watershed (PDF) (250 KB)

Western Lake Ontario Watershed (PDF) (293 KB)

Updated Assessments (PDF) (67 KB) Includes updated segment data sheets for waterbody assessments that have been revised since the WI/PWL assessment Report for this basin was issued. These updated waterbody assessments include: Upper Sandy Creek and Tribs (0303-0020), West Branch and Tribs (0301-0052).


Assessment Methodology (PDF) (135 KB)

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

Index of Waterbodies (PDF) (69 KB) - Alphabetically and by county.

To request printed copies of this report and for answers to other questions about this water quality assessment, please use the contact information at the right to reach us by e-mail, phone or in writing.