Tennessee Gas Pipeline Company's East 300 Upgrade Project: Monthly Status Report for June 2025

Strategic Insights -

Tennessee Gas Pipeline Company, L.L.C. has submitted a monthly status report to the Federal Energy Regulatory Commission for their East 300 Upgrade Project, which is ongoing despite encountering some issues in the past. The project has been receiving necessary federal and state authorizations, and all facilities have been placed in service. The company has made significant progress in stabilizing the construction site and has not encountered any instances of non-compliance during the reporting period.

Key Takeaways:

  • All federal authorizations/clearances for the Project have been received, and all Project facilities have been placed in service.
  • Work completed at Compressor Station 321 includes site stabilization, removal of erosion control devices, re-seeding, and no inspections were conducted during the reporting period.
  • Construction at Compressor Station 325 is ongoing, with Tennessee's environmental inspector monitoring restored areas and erosion control devices, and vegetation issues remain near the sound wall.
  • Construction at new Compressor Station 327 is also ongoing, with the environmental inspector continuing to monitor restored areas and erosion control devices, and the installation of mitigation to address concentrated runoff issue at the upper access driveway is planned to begin in the third quarter of 2025.
  • The company received a noise complaint from a landowner near Compressor Station 325, which is being addressed by installing pipe lagging material on the aboveground piping at Compressor Building A, pending receipt of the material.
  • There were no instances of non-compliance observed during the reporting period.
  • Photographs of site conditions for Compressor Stations 321, 325, and 327 were taken on June 20 and 27, 2025, showing vegetation established around compressor buildings, driveways, and construction workspaces.

Statistics:

  • 100% of federal authorizations/clearances for the Project have been received.
  • 0 instances of non-compliance observed during the reporting period.
  • 3 weeks estimated time period for the installation of pipe lagging material on the aboveground piping at Compressor Building A.
  • 1 noise complaint received from a landowner near Compressor Station 325.
  • 7 photographs of site conditions taken on June 20 and 27, 2025.

Sources:

  • Tennessee Gas Pipeline Company, L.L.C. (2025). Monthly Status Report for the East 300 Upgrade Project, Docket No. CP20-493-000.
  • Pennsylvania Department of Environmental Protection (2024). Notice of Violation related to the construction air permit for Compressor Station 321.