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New Projects and Our Process


Algonquin Incremental Market (AIM) Project

Project Status: Under Construction

Map: Proposed Algonquin Incremental Market Expansion

  • Location: New York, Connecticut, Rhode Island and Massachusetts
  • Project Facilities: See detail below
  • Capacity: Up to 342,000 dekatherms per day
  • Ownership: 100 percent Spectra Energy Partners
  • Full Project Completion Date: November 2016
  • FERC Docket Number: CP14-96-000


The Algonquin Incremental Market (AIM) Project will provide the Northeast with a unique opportunity to secure a cost effective, domestically produced source of energy to support its current demand, as well as its future growth, for clean burning natural gas.

The AIM Project — an infrastructure investment that expands the pipeline capacity of our existing Algonquin Gas Transmission system — will allow abundant regional natural gas supplies from the Appalachian basin to flow reliably into the Northeast, helping to meet the increasing demand while lowering energy costs.


Algonquin has signed long-term contracts for all of the project’s capacity, beginning in November 2016, with ten shippers – eight southern New England local distribution companies and two municipal utilities that deliver natural gas to their respective service areas in Connecticut, Massachusetts and Rhode Island. Each of the contracts was approved or has been evaluated by each shipper’s state regulatory commission or municipal authority process, which cited that the shipper contracts are in the public interest. There are no Maritimes & Northeast Pipeline Company deliveries involved with the AIM Project.


The AIM Project is not designed for nor will the project be used to transport natural gas for export as liquefied natural gas (LNG). The additional supplies will be used exclusively within southern New England.


Recognizing the critical need for additional pipeline capacity to move these new natural gas supplies into the region, public officials and organizations from across the Northeast have expressed support for the AIM Project.



Construction is under way. The AIM Project is being built over two years and will be ready to safely deliver new supplies of much needed domestic natural gas to the Northeast by November 2016.

The Federal Energy Regulatory Commission (FERC) exclusively authorizes the construction of new interstate natural gas facilities. FERC is also the lead federal agency responsible for conducting environmental reviews of interstate natural gas projects in compliance with the National Environmental Policy Act.

On March 3, 2015, FERC issued a Certificate of Public Convenience and Necessity following a comprehensive, multi-year review of the AIM Project. The certificate authorizes Algonquin to construct and operate the project’s facilities in accordance with the conditions set forth by FERC. A copy of the certificate is available here (pdf, 610 KB).

Algonquin filed the certificate application for the project on February 28, 2014. The AIM Project was assigned docket number CP14-96-000. You may visit FERC’s website at www.FERC.gov and enter this docket number to follow the project.

As the project proceeds, we will continue our commitment to responsible development, reliable operations and respectful, ongoing engagement with the communities we serve.

Final Environmental Impact Statement

On January 23, 2015, FERC staff issued the Final Environmental Impact Statement (FEIS) (pdf, 10.6 MB) for the AIM Project. The comprehensive FEIS analyzed the AIM Project facilities, route and information obtained during the FERC Pre-file Process and continuing through the FERC certificate proceeding. 

Based on that information and input, FERC staff concluded in the executive summary of the FEIS (pdf, 1.2 MB) that the “construction and operation of the Project would result in some adverse environmental impacts but most impacts would be reduced to less-than-significant levels.” Among the “principal reasons” cited are:

  • 93 percent of the project’s facilities “would be within or adjacent to existing rights-of-way” 
  • 70 percent of the project’s facilities “would replace existing Algonquin pipelines within existing rights-of-way”
  • Algonquin “would minimize impacts on natural and cultural resources during construction and operation” through specific plans to mitigate impacts

New York State Department of Environmental Conservation Public Comment Period and Permits

In January 2015, the New York State Department of Environmental Conservation (NYSDEC) provided a public comment period on the applications for the Air Title V permits, 401 Water Quality Certification, Protection of Waters permit, and Freshwater Wetland permit related to the modifications at the Stony Point and Southeast compressor stations and pipeline construction within New York State.

In May 2015, NYSDEC issued a Water Quality Certification, and Freshwater Wetlands and Stream Disturbance permits as well as proposed air permits and NYSDEC’s response to public comments on the air and water permit applications. In July 2015, NYSDEC issued final air permits.

Algonquin’s applications as filed with NYSDEC are available here:

The draft Title V permits and Permit Review Reports from NYSDEC website are available here:

The NYSDEC Legislative Public Hearings were scheduled as follows:

Date: Wednesday, January 21, 2015
Time: 6:00 p.m.
Location: Brewster Central School (note this is the corrected address)
Henry H. Wells Middle School Auditorium
570 Route 312
Brewster, NY 10509

Date: Thursday, January 22, 2015
Time: 6:00 p.m.
Location: Stony Point Community Center
5 Clubhouse Lane
Stony Point, NY 10980

NYSDEC extended the public comment period by two additional weeks – to Friday, February 27, 2015.  A copy of the NYSDEC notice is available here (docx, 16 KB).

Additional construction plans are provided here:

FERC’s Pre-file Process

From June 2013 through February 2014, Algonquin participated in FERC’s “Pre-file” process, conducting a series of activities prior to filing the formal application. During the Pre-file process, Algonquin held a number of meetings with landowners, public officials, government agencies and community members to provide information and gather input on the AIM Project. The Pre-file docket number was PF13-16-000.

Project Facilities

  • Construction of approximately:
    • 20.1 miles of 42-inch diameter mainline take-up/relay and new pipeline in Connecticut and New York (includes a new 0.7 mile horizontal directional drill crossing of the Hudson River in New York);
    • 9.1 miles of 16-inch diameter take-up/relay pipeline in Connecticut;
    • 1.3 miles of 12-inch diameter loop pipeline in Connecticut;
    • 2.0 miles of 36-inch diameter loop extension pipeline in Connecticut; and
    • 5.1 miles of new 16-inch and 24-inch diameter lateral pipeline in Massachusetts, referred to as the West Roxbury Lateral Project. More information on the West Roxbury Lateral is available here.
  • Addition of six new compressor units, for a total of 81,620 additional horsepower, at five existing compressor stations in New York, Connecticut and Rhode Island
  • Modification to an existing compressor station in Connecticut
  • Construction of one new meter station in Connecticut and two new meter stations in Massachusetts
  • Modifications to existing meter stations in New York, Connecticut and Massachusetts

We anticipate placing the AIM Project fully into service in November 2016. 

For construction and landowner-related questions, please call Algonquin's 24-hour hotline in your area:

  • West Roxbury Lateral: (866) 871-0356
  • Massachusetts and Rhode Island: (888) 331-6553
  • Connecticut and New York: (866) 873-2579

For other information, including media inquiries, please contact Marylee Hanley at (617) 560-1573 or via email at MHanley@spectraenergy.com.

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