FERC readies environmental review of Transco’s Dalton pipeline project

The staff of the Federal Energy Regulatory Commission will prepare an environmental assessment (EA) on Transcontinental Gas Pipe Line Co. LLC’s Dalton Expansion Project, involving construction and operation of new pipeline and aboveground facilities in Georgia.

The project also involves the modification of Transco’s existing mainline system in Maryland, Virginia, and North Carolina. The commission will use this EA in its decision-making process to determine whether the project is in the public convenience and necessity, said FERC in an Oct. 21 notice. This notice announces the opening of the scoping process to gather input from the public and interested agencies on the project. The scoping period will close on Nov. 20.

Transco plans to construct and operate about 110.8 miles of new natural gas pipeline in Coweta, Carroll, Douglas, Paulding, Bartow, Gordon, and Murray counties, Georgia, and a new compressor station in Carroll County, Georgia. In addition, Transco plans to modify facilities along its existing mainline system in Maryland, Virginia, and North Carolina to accommodate bidirectional flow. Transco has indicated that the project would provide 448,000 dekatherms per day of incremental firm transportation service to markets in northwest Georgia.

The project would include the installation of the following facilities:

  • a new 21,830 horsepower compressor station (Compressor Station 116) in Carroll County, Georgia;
  • three new meter stations in Bartow and Murray counties, Georgia;
  • about 7.6 miles of new 30-inch-diameter pipeline in Coweta and Caroll counties, Georgia;
  • 48.2 miles of new 24-inch-diameter pipeline in Carroll, Douglas, Paulding,and Bartow counties, Georgia;
  • 53.5 miles of new 20-inch-diameter pipeline in Bartow, Gordon, and Murray counties, Georgia;
  • 1.5 miles of new 16-inch-diameter pipeline in Murray County, Georgia; and
  • ancillary facilities associated with the new pipeline including mainline valves and pig launchers/receivers facilities.

The Dalton Expansion Project would include the following modifications to Transco’s existing mainline facilities:

  • addition of 30-inch mainline regulators at a compressor station in Howard County, Maryland;
  • addition of valves and yard piping for south flow compression at compressor stations in Pittsylvania and Prince William counties, Virginia;
  • modifications at a compressor station in Mecklenburg County, Virginia;
  • modifications at meter stations in Rockingham, Warren, Northampton, and Buffalo Island counties, North Carolina, and Pittsylvania, Halifax, Mecklenburg, Brunswick, and Greensville counties, Virginia; and
  • modifications at two mainline valves in Rockingham County, North Carolina.
About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.