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Mohawk River Watershed

Published Water Quality Monitoring and Assessment Reports

Waterbody Inventory/Priority Waterbodies List Report

Biological Assessment Reports

Groundwater Study Reports and Data

The links below go to United States Geological Survey (USGS) web pages. The DEC partners with the USGS to conduct research and publish reports and data for groundwater resources of the state. An overview of the monitoring project for the entire state, including links to methods, maps, and publications, can be found on USGS's 305(b) Ambient Groundwater Quality Monitoring webpage.

Other Reports

Upper Mohawk River Coliform Bacteria Monitoring Project Report, 2013 (PDF)

Watershed Management Plans

Mohwak River Watershed Plan (Outside Link)

Facts about this Watershed

Map of NYS identifying the Mohawk River Watershed
Click image to view a detailed watershed map

The Mohawk River Watershed lies entirely within the borders of New York State. The Mohawk River originates in the valley between the western Adirondacks and the Tug Hill Plateau and flows 140 miles to the east where it joins the Hudson River. The Mohawk Watershed comprises about one-quarter of the larger Hudson River Basin. Sections of the Mohawk River also serve as the New York State Barge (Erie) Canal.

Location: Central New York State

  • All of Montgomery County,
  • Most of Schoharie County,
  • Much of Schenectady, Greene, Fulton, Herkimer and Oneida Counties, and
  • Smaller parts of Albany, Saratoga, Delaware, Otsego, Hamilton, Madison and Lewis Counties.

Size: 3,460 square miles of land area, all within New York State.

Rivers and Streams: 4,086 miles of freshwater rivers and streams. Major tributary watersheds to the 140 miles of the Mohawk River:

  • Schoharie Creek (1,650 river miles)
  • West Canada Creek (1,165 miles)
  • East Canada Creek (515 miles)

Lakes, Ponds and Reservoirs: 135 significant freshwater lakes, ponds, and reservoirs (18,315 acres):

  • Hinkley Reservoir (2,684 acres)
  • Delta Reservoir (2.376 acres)
  • Peck Lake (1,426 acres)
  • Schoharie Reservoir (1,132 acres)

What You Can Do

Each of us lives in a watershed. On our Watershed Stewardship page are some tips on actions that you and your friends can take to help your watershed.


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