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Long Island Nitrogen Action Plan (LINAP)

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What is LINAP?

LINAP is a multiyear initiative to reduce nitrogen in Long Island's surface and ground waters by DEC, the Long Island Regional Planning Council (LIRPC), and Suffolk and Nassau counties, with input from multiple partners and stakeholders. It was started in 2015 when New York State appropriated $5 million to develop LINAP. Long Island's legislative delegation, with support from local environmental organizations, successfully championed funding for LINAP, which will be one of the most significant environmental initiatives since the preservation of the Pine Barrens.

LINAP focuses on how best to reduce nitrogen loading to groundwater and surface water through technical, management, and regulatory/policy actions. Nitrogen is the leading cause of water quality deterioration in Long Island's estuaries. Excess nitrogen causes toxic algal blooms that lead to low oxygen conditions, fish kills, and degraded wetlands and marine habitats. Nitrogen also contaminates the groundwater which is the sole source of Long Island's drinking water.


The primary goals of LINAP are to:

  • Assess nitrogen pollution in Long Island waters,
  • Identify sources of nitrogen to surface waters and groundwater,
  • Establish nitrogen reduction endpoints,
  • Develop an implementation plan to achieve reductions.

Under the Long Island Nitrogen Action Plan, numerous multi-year initiatives are underway to decrease the amount of nitrogen, which primarily comes from wastewater and fertilizers, entering our surface and ground waters. The LINAP Scope (PDF) includes project goals, planning structure, schedule and tasks, and was drafted with input from stakeholder comments during five public meetings in 2015 and 2016.

A Fact Sheet (PDF) has been developed to provide an overview of LINAP, the sources of nitrogen and the impacts on the environment. More information about LINAP is available on the pages under the "Important Links" section on the right side of this page.


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More about Long Island Nitrogen Action Plan (LINAP):