Lake Champlain Rich in biological diversity, recreational activities, and cultural resources, Lake Champlain is an essential asset to its surrounding regions in New York, Vermont, and Canada. Environmental issues in the lake threaten these resources. For more information on EPA's involvement in the Lake Champlain basin, see the Lake Champlain Basin Program's webpage . The New York City Reservoir watershed covers an area of over 1,900 square miles in the Catskill Mountains and the Hudson River Valley. The reservoir systems in the watershed deliver approximately 1.4 billion gallons of water each day to nearly 9 million people in New York City, much of Westchester County, and areas of Orange, Putnam, and Ulster Counties.
Environmental concerns grow out of the impacts of development and sprawl.
For more information, see the New York City Watershed webpage . Onondaga Lake Environmental contaminants of concern in the lake include nutrients, bacteria, and toxic substances. Various sources contribute to the contamination of Onondaga Lake and EPA has taken many actions in this area. To learn more about the lake, please visit the Onondaga Lake webpage . Otisco Lake Otisco Lake is one of the Finger Lakes of central New York State.