The staff of the Federal Energy Regulatory Commission will prepare a supplemental environmental assessment (EA) on an amendment to the Rock Springs Expansion Project, involving construction and operation of facilities by Transcontinental Gas Pipe Line Co. LLC (Transco) in Lancaster County, Pennsylvania.
The Commission will use this supplemental EA in its decision-making process to determine whether the amendment to the project is in the public convenience and necessity. The scoping period where input will be taken on what should be covered in the EA will close on May 20, said FERC in an April 20 notice.
On March 19, FERC authorized the Rock Springs Expansion Project. The EA for the project was issued in November 2014. The project is an expansion of Transco’s existing pipeline system which will enable Transco to provide 192,000 dekatherms per day of incremental firm transportation capacity from Transco’s Station 210 Zone 6 Pool in Mercer County, New Jersey, to Old Dominion Electric Cooperative’s 1,000-MW Wildcat Point project in Cecil County, Maryland.
In the current amendment, Transco proposes to modify the previously authorized pipeline route in Lancaster County, Pa. The proposed alignment modification occurs from milepost (MP) 7.60 to MP 8.29 (a total of 0.69 mile). Transco is proposing to adjust the pipeline centerline alignment from the originally authorized property to the adjacent property to the east.