The US Federal Energy Regulatory Commission (FERC) has issued a favorable environmental assessment for Southern Natural Gas Company’s (SNG) proposed Fairburn Expansion Project. The purpose of the project is to provide approximately 343,164 dekatherms per day of new firm transportation capacity to delivery points in the SNG Zone 2 and Zone 3 systems from a new interconnection with an existing Transco pipeline in Fayette County, Georgia, USA.
The Fairburn Expansion Project includes construction of two new pipeline segments, a new compressor station, and three new meter stations; acquisition of an existing pipeline lateral; and modifications to two existing meter stations.
The project consists of the following components:
Fairburn Compressor Station
Construction of a new 18,000 hp (13,428 kW) electric-drive compressor station in Fulton County, Georgia, at the terminus of the proposed Fairburn Lateral and adjacent to the existing SNG South Atlanta-Austell Pipeline. The compressor station will be comprised of two 9000 hp (6714 kW) electric motor driven reciprocating compressors. The facility unit will compress 160 to 350 MMscfd (4 x 106 m3/d to 9 x 106 m3/d) of natural gas from a suction pressure of approximately 510 psig (35.16 bar) to a discharge pressure of approximately 1160 psig (79.97 bar). The electric motor driven compressor package (2 units) will be installed in an insulated compressor building. An office/warehouse building will be constructed adjacent to the compressor building.
Construction of approximately 5 miles (8.04 kmk) of new 30-in. (762-mm) outside diameter (OD) pipeline from a new interconnection with an existing Transcontinental Gas Pipeline Company (Transco) pipeline in Fayette County, Georgia, to the proposed Fairburn Compressor Station in Fulton County, Georgia.
South Main 2nd Loop Line Extension
Construction of approximately 2 miles (3.2 km) of new 30-in. OD pipeline from approximate milepost (MP) 373.6 to approximate MP 375.2 on the existing SNG South Main Line System in Monroe County, Georgia.
UPS Meter Station
Construction of a new meter station in Fulton County, Georgia, along the existing McDonough Lateral to measure gas flow from SNG to United Parcel Service (UPS).
The acquisition of an approximately 20-mile (32.1-km) existing 30-inch OD pipeline lateral and appurtenant facilities (one pig launcher, one pig receiver, two mainline valve settings, and a cathodic protection system) from the existing SNG to McDonough Meter Station in Fulton County, Georgia, to the proposed Plant McDonough Meter Station in Cobb County, Georgia. The acquisition of the lateral will not include any construction or modifications to the existing pipeline facilities. The Plant McDonough Meter Station, UPS Meter Station, and SNG to McDonough Meter Station are located along the existing McDonough Lateral.
Transco to SNG Meter Station
Construction of a new meter station in Fayette County, Georgia, at an interconnect proposed with the existing Transco pipeline to measure gas flow from the Transco system to the proposed Fairburn Lateral.
Plant McDonough Meter Station
Construction of a new meter station in Cobb County, Georgia, at the terminus of the existing McDonough Lateral within the Georgia Power Plant McDonough electric power generating facility to measure gas flow and provide flow control from SNG to the Georgia Power Plant McDonough.
SNG to McDonough Meter Station
Modifications at the existing SNG meter station in Fulton County, Georgia, along the existing SNG South Atlanta-Austell Line and at the origin of the McDonough Lateral to convert the function from measurement, gas quality analysis, flow control, and pressure regulation to pressure regulation and gas quality analysis. The measurement and flow control functions will be relocated to the Plant McDonough Meter Station.
Jonesboro Meter Station
Modifications at the existing SNG meter station in Clayton County, Georgia, along the existing SNG Riverdale Line to add a gas chromatograph and sample stream.
Construction on the Fairburn Expansion Project is expected to begin in January 2018 with a proposed in-service date of October 2018.