Ashokan Reservoir, photo: Bob Tullis

Welcome to the Watershed!
The Catskill Watershed Corporation (CWC) is a locally based, locally staffed nonprofit dedicated to supporting the communities, businesses, and waterways of the West-of-Hudson NYC Watershed.
We work alongside residents throughout the Catskills to provide environmental protection, economic development, education, and community support programs that help our region thrive while protecting one of the largest unfiltered water supplies in the world.
Serving 41 towns across the Catskill-Delaware Watershed, CWC is here to help strengthen local communities, protect natural resources, and support the people who call this region home.
The Catskill-Delaware Watershed
The Catskill Delaware Watershed spans across five upstate counties which include Delaware, Greene, Schoharie, Sullivan, and Ulster. Throughout the 1,597 square mile watershed, six reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) provide 90% of the daily drinking water to 9.8 million residents in New York State.












