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Saint Lawrence River WI/PWL

Shows the location of the Saint Lawrence river basins

This is the most current Waterbody Inventory/Priority Waterbodies List (WI/PWL) water quality assessment information for the waters of the Saint Lawrence River Basin. The assessments are based on data and information collected through the 2014 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.

Saint Lawrence River Basin (East) HUC10 Watersheds

Shows the watersheds in saint lawrence river basin(east)

Chateaugay/English Sub-Basin
Salmon River Sub-Basin
Saint Regis River Sub-Basin
Raquette River Sub-Basin

Saint Lawrence River Basin (West) HUC10 Watersheds

Shows watersheds in the St lawrence River basin

Grass River Sub-Basin
Upper Saint Lawrence Sub-Basin
Oswegatchie River Sub-Basin
Indian River Sub-Basin

Additional overview and water quality information about the Basin is available on the Saint Lawrence River Watershed page.

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.