Iroquois Pipeline

Location: Brookfield and Milford, CT; Dover and Athens, NY | Status: Pending in CT, Active in NY

Summary: Save the Sound is opposing the Iroquois Gas Transmission Enhancement by Compression (“ExC”) Project, which would modify the existing pipeline by enhancing compression at various stations along the pipeline to increase the amount of natural gas transported to New York utilities. The project would create new health burdens on already overburdened environmental justice communities and would be inconsistent with New York’s and Connecticut’s greenhouse gas goals.   

The Iroquois Pipeline is a natural gas transmission system that runs from northern New York to southeastern Connecticut to provide natural gas to central Long Island. The ExC Project includes an increase of 12,000 horsepower of compression and gas cooling at the compressor stations in Athens and Dover, NY, an increase of 24,000 horsepower at the compressor station in Brookfield, CT, and the addition of gas cooling at the compressor station in Milford, CT. 

In November 2021, the Federal Energy Regulatory Commission (FERC) completed the final Environmental Impact Statement (FEIS) for the ExC Project. 

In January 2023, Iroquois applied for an Article 19 Air State Facility permit in New York.  In Connecticut, the Department of Energy & Environmental Protection anticipates issuing a draft permit for the Brookfield station by the end of 2023.  

Latest Step: Evaluating impacts to NY and CT communities and climate change.

Next Step: NYSDEC makes its decision on the Article 19 permit. CT DEEP publishes a draft permit for Brookfield by the end of 2023. 

Action Opportunities: 

  1. Become a Save the Sound Member 
  2. Become a Pollution Watchdog

Last Updated: November 9, 2023

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