AECOM (NYSE:ACM), the trusted global infrastructure leader, today announced that Newtown Creek CSO Partners, a joint venture of AECOM, Parsons Corporation and EPC Consultants Inc., has been selected by the New York City Department of Environmental Protection (NYCDEP) to provide construction supervision services for the City's first combined sewer overflow (CSO) storage tunnel and pump station project. The contract is part of NYCDEP's long‑term effort to modernize wastewater infrastructure and significantly reduce combined sewer overflows to Newtown Creek, a federally-designated Superfund site spanning Brooklyn and Queens.

"Reducing combined sewer overflows is essential to restoring the health of urban waterways and strengthening community resilience," said Beverley Stinson, chief executive of AECOM's global water business. "Beyond its local benefits, this project contributes to the global effort to modernize water systems in the face of climate pressures, demonstrating how cities like New York can lead in protecting vital waterways long affected by industrial and sewage contamination while meeting long‑term environmental compliance goals."

Under the agreement, the joint venture will oversee the delivery of approximately 3.25 miles of tunnel and related facilities, including underground storage and conveyance tunnels, a tunnel dewatering pump station and connections to the Newtown Creek Wastewater Resource Recovery Facility. Once completed, the system is expected to provide up to 50 million gallons of storage capacity, with the goal of significantly reducing CSO discharges to Newtown Creek.

"This project represents a critical investment in New York City's environmental infrastructure and a major step forward in protecting Newtown Creek," said Sam Donelson, chief executive of AECOM's U.S. East and Latin America region. "Our team brings extensive experience managing complex, urban tunneling programs, and we are proud to partner with NYCDEP to help advance a solution that will deliver lasting environmental and community benefits for Brooklyn and Queens."

The project advances AECOM's Sustainable Legacies strategy by showcasing how innovative engineering and construction management can directly deliver cleaner waterways and more resilient, community-focused urban infrastructure. By applying global best practices to a locally significant project, AECOM continues its commitment to creating measurable, long‑term improvements in water quality, public health and climate resilience.

About AECOM

AECOM (NYSE:ACM) is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients' complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.

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AECOM joint venture selected to deliver New York City's first combined sewer overflow storage tunnel