New York City Environmental Protection

The New York City Dept. of Environmental Protection has jurisdiction over many dams and reservoirs in Westchester County.

DEP manages New York City’s water supply, providing more than 1 billion gallons of high-quality water each day to more than 9.3 million New Yorkers. This includes more than 70 upstate communities and institutions in Ulster, Orange, Putnam and Westchester counties who consume an average of 110 million total gallons of drinking water daily from New York City’s water supply system.

This water comes from the Catskill, Delaware, and Croton watersheds that extend more than 125 miles from the City, and the system comprises 19 reservoirs, three controlled lakes, and numerous tunnels and aqueducts. DEP has nearly 6,000 employees, including almost 1,000 scientists, engineers, surveyors, watershed maintainers and other professionals in the watershed.

For information and permits, email filming@dep.nyc.gov.