Tennessee Gas Pipeline Company's Compressor Station 245 Uprate Project Environmental Assessment

Strategic Insights -

The Tennessee Gas Pipeline Company has proposed an environmental assessment for the Compressor Station 245 Uprate Project, which involves increasing the certificated horsepower of the station's Compressor Unit 1C and abandoning in place three existing compressor units. The project is expected to have minimal environmental impact, with negligible emissions of fugitive dust and air pollutants. The noise contribution from the modified station is predicted to be within the acceptable limits, with a predicted Ldn of 55 dBA at nearby noise-sensitive areas. The project is subject to certain conditions, including a post-project noise survey within 60 days of placing the modified station in service.

Key Takeaways:

  • The Compressor Station 245 Uprate Project involves increasing the certificated horsepower of the station's Compressor Unit 1C from 8,219 hp to 11,107 hp and abandoning in place three existing compressor units.
  • The project is expected to have minimal environmental impact, with negligible emissions of fugitive dust and air pollutants.
  • The noise contribution from the modified station is predicted to be within the acceptable limits, with a predicted Ldn of 55 dBA at nearby noise-sensitive areas.
  • The project is subject to certain conditions, including a post-project noise survey within 60 days of placing the modified station in service.
  • The project would not affect historic properties, as determined by the New York State Historic Preservation Office.
  • The project would not impact air quality, as the modified station's emissions would be within the limits specified in the Title V Operating Permit.
  • The project would not affect water resources, including groundwater, water use, or surface water.
  • The project would not impact floodplains, as none would be crossed by the project.

Statistics:

  • The project involves a cost of $50,000.
  • The proposed Compressor Upate project will increase horsepower from 8,219 hp to 11,107 hp.
  • The predicted noise contribution from the modified station is within the acceptable limits, with a predicted Ldn of 55 dBA at nearby noise-sensitive areas.
  • The project would not affect any ground disturbance or operational footprint different than existing site conditions.
  • The project would not impact any paleontological or mineral resources, or state listed threatened, endangered species, or special concern species.
  • The project would not impact any socioeconomics, as it does not include any new major aboveground facilities.

Sources:

  • Federal Energy Regulatory Commission, Office of Energy Projects, Division of Gas-Environment & Engineering, Environmental Assessment Report (July 2025).
  • Tennessee Gas Pipeline Company, L.L.C., Compressor Station 245 Uprate Project, Environmental Comments (July 2025).
  • U.S. Environmental Protection Agency, Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety (1974).
  • New York State Department of Environmental Conservation, Title V Operating Permit for Compressor Station 245.