Federal Review Begins for Another Pennsylvania Gas Pipeline Expansion
Published Date: 11/6/2026
Notice
Summary
Transcontinental Gas Pipe Line Company wants to build new pipeline facilities in Pennsylvania to move more natural gas from the Marcellus Shale area. The government is preparing an environmental review to make sure the project is safe and will finish it by March 26, 2027. If all goes well, final approvals should happen by June 24, 2027, affecting local communities and energy customers with potential new energy options.
Analyzed Economic Effects
3 provisions identified: 2 benefits, 1 costs, 0 mixed.
New 3.4‑mile, 42‑inch pipeline built
Transcontinental plans to build about 3.4 miles of 42‑inch pipeline (called the Diamond Loop) in Luzerne County, Pennsylvania, plus pig launcher/receiver and tie‑in facilities at Compressor Station 515, a new mainline valve site, and cathodic protection. If you own or use land near the route, these specific facilities will be constructed on or near existing Transco lines.
EA issued March 26 with 30‑day comment period
FERC staff will issue an environmental assessment (EA) on March 26, 2027, and the EA will be open for a 30‑day public comment period. Federal agencies must make their final authorization decisions within 90 days of the EA, i.e., by June 24, 2027.
Landowner concerns to be addressed in EA
The Commission received comments from one landowner listing issues such as temporary construction effects (for example, vegetation disturbance), adequate erosion control, property access, protection of future property use, and potential future changes. The notice states that all substantive comments will be addressed in the EA.
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Key Dates
Department and Agencies
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