Thursday, August 6, 2026

A 14-Year Veteran of the Agency, Garigliano Will Oversee DEP Bureau that Manages and Protects the Nation’s Largest Municipal Water Supply System

 NYC Department of Environmental Protection

Today, NYC Department of Environmental Protection (DEP) Commissioner Lisa Garcia appointed Jennifer Garigliano as Deputy Commissioner of the Bureau of Water Supply (BWS). Garigliano will oversee nearly 1,000 employees who manage and protect the nation’s largest municipal water system, which provides over a billion gallons of high-quality drinking water to almost 10 million people each day.

“Jennifer’s detailed knowledge of the water supply, technical skill, and experience managing large teams made her the clear choice to lead the Bureau of Water Supply into the future,” DEP Commissioner Lisa F. Garcia said. “As a lifelong resident of the watershed, Jen is also highly dedicated to the collaboration with our community partners who play an invaluable role in protecting the City’s reservoirs and the lands that surround them. I’m proud to announce appointment and have every confidence that she will lead with integrity and an unwavering commitment to protecting public health.”

“I am deeply honored to lead the Bureau of Water Supply, working alongside my extraordinary colleagues who dedicate themselves every day to serving their fellow New Yorkers,” said DEP Deputy Commissioner Jennifer Garigliano said. “For nearly two centuries, generations of public servants have built, protected, and strengthened one of the world’s greatest water supply systems. It’s a privilege to help steward that legacy into the future, and I look forward to collaborating with our colleagues across the City and DEP, and stakeholders throughout the watershed.”

Garigliano began her DEP career in 2012 as Chief of Staff to former Deputy Commissioner Paul V. Rush, who retired in June after leading BWS for two decades. Most recently she served as Executive Director of Strategic Operations and Research for the bureau. She has also led reservoir operations, water quality modeling, wholesale water programs, emergency planning, and long-term strategy for the City’s “Filtration Avoidance Determination” (FAD), which allows the City to operate the largest unfiltered water supply in the United States. A West Point graduate and decorated Army veteran, Garigliano previously commanded units specializing in defense against chemical, biological, radiological, nuclear, and explosive threats, and served in Afghanistan during Operation Enduring Freedom.

DEP’s Bureau of Water Supply operates and maintains more than 280 facilities, including dams, aqueducts, and treatment plants that collect, convey, and treat New York City’s drinking water. BWS scientists monitor water quality at nearly 1,200 locations across the watershed and the five boroughs to ensure compliance with state and federal standards. In addition, BWS protects the 2,000-square-mile watershed through environmental stewardship, land management, and partnerships with local communities. DEP’s source water protection programs are internationally recognized and help the City maintain its filtration waiver for its water supply from the Catskill Mountain region.

About DEP:

DEP manages New York City’s water supply, providing approximately 1 billion gallons of high-quality drinking water each day to nearly 10 million residents, including 8.3 million in New York City. The water is delivered from a watershed that extends more than 125 miles from the city, comprising 19 reservoirs and three controlled lakes. Approximately 7,000 miles of water mains, tunnels and aqueducts bring water to homes and businesses throughout the five boroughs, and 7,500 miles of sewer lines and 96 pump stations take wastewater to 14 in-city treatment plants. DEP also protects the health and safety of New Yorkers by enforcing the Air and Noise Codes and asbestos rules. For more information, visit nyc.gov/dep, like us on Facebook, or follow us on X.

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