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LINAP Workgroups

Workgroups of technical experts and key partners are advising the Project Management Team.

  • Fertilizer Management - This workgroup is examining measures to improve management and reduce use of fertilizer in agriculture, golf courses, the landscape industry, and by homeowners. The work group has released 2 fact sheets, Fertilizer Application Timing and Managing Irrigation.
  • Water Reuse Workgroup - This workgroup will discuss the potential opportunities and challenges for water reuse on Long Island, as it relates to nitrogen removal.
  • Nutrient Bioextraction (link leaves DEC's website)- This workgroup is exploring the feasibility and efficacy of bio-extraction in the waters of Long Island, NYC and Westchester. More information will be added to this page as the workgroup develops.
  • Suffolk County Subwatershed Planning (link leaves DEC's website) - Several subcommittees have been assisting with data collection, modeling assumptions, and regulatory reform.
  • Nassau County Subwatershed Planning - This workgroup provides input and advises the LINAP Project Management Team as it works with Nassau County to develop groundwater and surface water nitrogen load reduction strategies.

Fertilizer Management Workgroup

The Long Island Nitrogen Action Plan (LINAP) Fertilizer Management Workgroup was established to provide input and support in the development and implementation of the LINAP. The workgroup's purpose includes:

  1. Acting as a forum to understand and make people aware of actions taken to date by the various industries to reduce fertilizer pollution; and
  2. Identifying actions that can be taken looking forward to further reduce nitrogen pollution from fertilizer use.

The workgroup is not a decision making body, but will promote information exchange and idea sharing. This will include advising the Project Management Team in developing fertilizer management recommendations.

LINAP will evaluate the effectiveness of existing strategies to minimize the impact of nitrogen from fertilizers on Long Island's waterbodies. It will also determine if additional fertilizer management strategies might be valuable in some or all watersheds to achieve nitrogen load reductions.

Current Workgroup Activities

The Long Island Nitrogen Action Plan Fertilizer Management Workgroup met several times to discuss the best management practices for turf grass fertilizers. In attendance at these workgroup meetings were various sectors, including landscapers, fertilizer manufactures, golf courses, environmental groups, and state and county government. The meetings provided a forum for healthy discussions on various turf grass fertilizer topics. The series of meetings has led to a group of turf grass fertilizer recommendations that help consumers care for their lawns while lessening their environmental impacts.

These recommendations are available for download and can be printed for personal and professional use.

Fertilizer Recommendations (PDF, 182 KB)

Fertilizer Fact Sheets

Fact sheets have been developed from the information gathered from the workgroup. The purpose of these fact sheets are to give people additional information to help them care for their lawns while considering the environmental impacts. A fact sheet on Fertilizer Application Timing and another on Managing Irrigation are available on the web site.

In addition, the fact sheets are available for download and can be printed for personal and professional use.

Fertilizer fact sheet - Timing (PDF, 420 KB)

Fertilizer fact sheet - Irrigation (PDF, 380 KB)

Sector Meetings

A second set of fertilizer workgroup meetings were held in June 2017 with four key sectors/industries: golf courses, landscapers, fertilizer manufacturers, and agriculture. The purpose of the meetings was to review the results of the fertilizer workgroup questionnaires and review initiatives by each sector to reduce fertilizer nitrogen use.

Notes from each sector meeting are available for download below. Please note that these notes capture, to the best of our ability, the statements made and opinions voiced at these meetings. The purpose of posting these notes is to ensure transparency in the LINAP workgroup process. These notes should not be used as a reference document. The statements in these documents are not necessarily supported or endorsed by NYSDEC or LIRPC.

Fertilizer Workgroup Second Meeting Notes - Golf Courses (PDF, 167 KB)

Fertilizer Workgroup Second Meeting Notes - Landscaping & Grounds (PDF, 146 KB)

Fertilizer Workgroup Second Meeting Notes - Manufacturers (PDF, 284 KB)

Fertilizer Workgroup Second Meeting Notes - Agriculture (PDF, 228 KB)

Questionnaire Summaries

Following the first workgroup meeting in December 2016, questionnaires corresponding with fertilizer topics listed in the LINAP scope were completed by workgroup members. Summaries of the responses to each questionnaire are available for download:

Fertilizer Formulations and Application Questionnaire Summary (PDF, 335 KB)

Fertilizer Regulations Questionnaire Summary (PDF, 289 KB)

Nutrient Recycling Questionnaire Summary (PDF, 241 KB)

Management Measures to Reduce Fertilizer Requirements Questionnaire Summary (PDF, 226 KB)

Use of Native Plants to Reduce Fertilizer Questionnaire Summary (PDF, 300 KB)

Water Reuse Workgroup

The Long Island Nitrogen Action Plan (LINAP) scoping process identified water reuse as a potential way to reduce nitrogen pollution. The LINAP Water Reuse workgroup was established to explore the opportunities, challenges, and nitrogen reduction potentials associated with water reuse on Long Island.

This workgroup is not a decision-making body, but will work to advise the Project Management Team on the direction of the water reuse component of LINAP.

Water Reuse Roadmap

The LINAP Treated Wastewater Reuse Roadmap is an interactive pdf document that takes users (principally municipalities and engineering/consulting firms) through the steps in DEC's environmental permitting process as it relates to the reuse of treated municipal effluent. The Roadmap was created in consultation with the LINAP Water Reuse Advisory Workgroup, with input from DEC's Division of Water and Division of Environmental Permits, and is intended to be a general guide for the permitting process for water reuse - specific requirements may vary due to features of individual projects. The document also includes relevant contact information and links to DEC and external webpages, which may be updated periodically, as needed.

Treated Wastewater Reuse Roadmap (PDF, 634 KB)

Potential Water Reuse Opportunities Interactive Map: Golf Course

Treated effluent from centralized wastewater treatment facilities can be used as a source of non-potable water for various purposes. Using this water for golf courses has multiple benefits:

  • potentially reduces the amount of nitrogen a golf course uses for fertilization
  • addresses nitrogen pollution by diverting nitrogen from waterbodies to properties where nitrogen can be used by turf grass and other plants
  • reduces the demand on Long Island's sole-source aquifer

This interactive map shows the location of golf courses in Nassau and Suffolk Counties, as well as the location of wastewater treatment facilities, both municipal and private. Click on map features within the application to learn more information about a treatment facility, including its design flow/flow limit and current receiving water. The layers tool on the map allows users to visualize a set range of distances from any wastewater treatment facility by displaying circles around these facilities - see if any golf course (or other location of interest to you) falls within these circles to get a general idea of proximity or use the measure tool to determine more accurate distances.

Water Reuse Opportunities: Golf Courses - interactive map

Water Reuse Fact Sheet

A fact sheet has been developed to summarize LINAP efforts to address some of the challenges and needs identified by the Water Reuse Advisory Workgroup. These efforts include a permitting roadmap and an interactive GIS map to help determine locations where water reuse projects may be achievable, with a focus on golf course irrigation. The fact sheet is available for download and can be printed for personal and professional use.

Water Reuse fact sheet - (PDF, 290 KB)

Workgroup Meetings

October 2018 - The meeting agenda included local water reuse updates, and demonstrated the draft "Treated Wastewater Reuse Roadmap". The Roadmap was recommended by the workgroup to assist interested parties in navigating the permitting process for projects involving the reuse of treated sanitary effluent. The meeting also included a presentation by Sandra Menasha form Cornell Cooperative Extension of Suffolk County on the federal Food Safety Modernization Act and its potential effects on agricultural reuse.

November 2017 - Members were introduced to the current regulatory framework for water reuse projects and given an overview of the types of reuse applications that are being used around the country. Members participated in a general discussion on the potential benefits of, and the needs and challenges associated with, water reuse on Long Island.

Nassau County Subwatershed Planning

The Nassau County Subwatershed Advisory Workgroup provides input and advises the LINAP Project Management Team as it works with Nassau County to develop groundwater and surface water nitrogen load reduction strategies.

April 20, 2017 Meeting

The first meeting was held on April 20, 2017. Members were introduced to the nitrogen load model (NLM) and hydrodynamic modeling currently underway. The NLM will determine the nitrogen load from wastewater, fertilizer, and atmospheric deposition to 13 subwatersheds throughout the County. Hydrodynamic modeling is being used to estimate nitrogen loading and flushing rates. The models will determine the priority subwatersheds in the County and inform nitrogen load reduction strategies.

PDFs of the five presentations given at the meeting are available below:


More about LINAP Workgroups: