Ashokan Reservoir, photo: Bob Tullis
Welcome to the Watershed!
The Catskill Watershed Corporation (CWC) is a locally based, locally staffed nonprofit helping West of Hudson Watershed communities and businesses thrive while protecting the source of one of the world’s largest unfiltered water supplies.
Serving 41 towns and 8 villages across 5 counties in NYC’s West of Hudson Watershed, CWC provides grants and resources that support #WatershedLiving.
The West of Hudson Watershed
The West of Hudson Watershed spans across five upstate counties which include Delaware, Greene, Schoharie, Sullivan, and Ulster.
The 1,597 square mile watershed includes six reservoirs: Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie.


















