New York City Department of Environmental Protection
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| Department overview | |
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| Jurisdiction | New York City |
| Headquarters | 59-17 Junction Boulevard Elmhurst, Queens |
| Employees | 6,000 |
| Department executive |
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| Key document | |
| Website | www |
The New York City Department of Environmental Protection (DEP) is the department of the government of New York City that manages the city's water supply.
It provides more than 1.1 billion US gallons (4,200,000 m3) of water each day to more than 9 million residents (including 8 million in the City of New York) through a complex network of nineteen reservoirs, three controlled lakes and 6,000 miles (9,700 km) of water mains, tunnels and aqueducts. DEP is also responsible for managing the city's combined sewer system, which carries both storm water runoff and sanitary waste, and fourteen wastewater treatment plants located throughout the city. DEP carries out federal Clean Water Act rules and regulations, handles hazardous materials emergencies and toxic site remediation, oversees asbestos monitoring and removal, enforces the city's air and noise codes, bills and collects on city water and sewer accounts, and manages citywide water conservation programs. Its regulations are compiled in title 15 of the New York City Rules.
NYCDEP manages three upstate supply systems to provide the city's drinking water: the Croton system, the Catskill system, and the Delaware system. The overall distribution system has a storage capacity of 550 billion US gallons (2.1×109 m3) and provides over 1 billion US gallons (3,800,000 m3) per day of high quality drinking water to more than eight million city residents and another one million users in four upstate counties bordering on the water supply system. The distribution system is made up of an extensive grid of water mains stretching approximately 6,600 miles (10,600 km).
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