New York City Department of Environmental Protection


The New York City Department of Environmental Protection (DEP) protects public health and the environment by supplying clean drinking water, collecting and treating  wastewater, and reducing air, noise, and hazardous materials pollution.

DEP is a New York City agency of nearly 6,000 employees that manages and conserves the City’s water supply; distributes more than one billion gallons of clean drinking water each day to nine million New Yorkers and collects wastewater through a vast underground network of pipes, regulators, and pumping stations; and treats the 1.3 billion gallons of wastewater that New Yorkers produce each day in a way that protects the quality of New York Harbor. To achieve these mandates, DEP oversees one of the largest capital construction programs in the region. As the City agency responsible for New York City’s environment, DEP also regulates air quality, hazardous waste, and critical quality of life issues, including noise

Green Infrastructure 

Officially launched in 2011 after years of foundational work, New York City’s Green Infrastructure Program is a multiagency effort led by the DEP. With agency partners, DEP designs, constructs and maintains a variety of sustainable green infrastructure practices such as green roofs and rain gardens on City owned property such as streets, sidewalks, schools, and public housing. The Program goal is to reduce combined sewer overflows into the waterways of New York City by managing stormwater from impervious surfaces using green infrastructure (GI) technologies. Additionally, the Green Infrastructure Grant Program has committed more than $15 million to 34 private property owners to build green infrastructure projects.

DEP has successfully installed thousands of rain gardens and other green infrastructure practices. It regularly updates a publicly accessible, interactive web-map showing all DEP green infrastructure practices at advanced design, in construction, or constructed statuses.

Green Infrastructure Construction, Inspection and Maintenance Training

GI training on construction, inspection and maintenance will be available in 2018.

Exam Information

Please check back for updates.


Posted on

October 20, 2017