Long Island Sound Nitrogen Reduction Infrastructure Grant
The Long Island Sound Nitrogen Reduction Infrastructure Grant funds projects that reduce nitrogen discharges from Massachusetts wastewater plants to improve water quality, administered by the Executive Office of Energy and Environmental Affairs.
Funder: Executive Office of Energy and Environmental Affairs
Due Dates: August 31, 2026 (anticipated/projected full application/Request for Responses deadline)
Funding Amounts: ~$7.2 million total available for FY26; individual award sizes not specified; work must be completed by September 30, 2031.
Summary: Supports infrastructure projects that reduce nitrogen discharges from Massachusetts wastewater treatment plants in the Long Island Sound watershed.
Key Information: Only Publicly Owned Treatment Works (POTWs) in the LIS watershed are eligible; preference for shovel-ready projects.
Description
This grant, administered by the Massachusetts Department of Environmental Protection (MassDEP) under the Executive Office of Energy and Environmental Affairs, provides funding to support infrastructure projects that reduce nitrogen discharges from wastewater treatment plants within the Long Island Sound (LIS) watershed in Massachusetts. Funded through the U.S. Environmental Protection Agency’s Infrastructure Investment and Jobs Act and the Long Island Sound Partnership, the program targets construction and development projects—especially those that are shovel-ready or in advanced stages of design and permitting—that directly address nitrogen pollution, a major factor in water quality degradation and eutrophication in the Sound. The goal is to rapidly implement innovative solutions to mitigate nitrogen at the source and improve water quality in the LIS watershed.
