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John Sevier Fossil Plant

Proposed Gas-Fired Combustion Turbine/Combined-Cycle Generating Capacity and Associated Natural Gas Pipeline


Hawkins County, Tennessee

TVA issued an environmental assessment (EA) and a finding of no significant impact (FONSI) for a proposal to construct and operate a new gas-fired combustion turbine/combined-cycle (CT/CC) generating plant on the site of its John Sevier Fossil Plant (JSF). The EA considers the impacts of taking no action and of constructing the gas-fired facility. The EA and FONSI are presented below.

The CT/CC plant would be operated to provide TVA with intermittent to base-load generation and help TVA meet obligations to reduce nitrogen oxides (NOx) and sulfur dioxide (SO2) emissions to fulfill requirements under the Clean Air Act and an Order issued by the U.S. District Court for the Western District of North Carolina. Under that Order, TVA is required to install NOx and SO2 emission controls on its coal units at JSF by January 1, 2012. Construction and operation of the JSF CT/CC plant would provide the needed generation to meet the power needs of the power transmission system and would allow TVA to meet the emission limits and court-ordered timetable for emission reductions for JSF.

Operation of the proposed JSF CC facility would require the construction and operation of 16.3 miles of new gas pipeline and upgrades to approximately 11.7 miles of existing gas pipeline. Additionally, the pipeline project would include construction of a new meter station, a new regulator, and modifications to four existing compressor stations to supply fuel for the new CT/CC plant.


PDF files require Adobe Acrobat Reader.

Finding of No Significant Impact (PDF, 217, kb)

Environmental Assessment (PDF, 5 mb)

Appendix A – Summary of Environmental Permits and Applicable Regulations (PDF, 141 kb)

Appendix B – Water Body Crossing Procedures and Pipeline Testing, Reliability, and Safety Information (PDF, 1.7 mb)

Appendix C – Water Bodies Crossed by the Proposed Gas Pipeline Route (PDF, 329 kb)

Appendix D – Material Safety Data Sheets and Cooling Tower Additives (PDF, 2.2 mb)

Appendix E – Terrestrial Ecology - Plants (PDF, 161 kb)

Appendix F – Lists of Plant and Animal Species of Conservation Concern (PDF, 189 kb)

Appendix G – Agency Correspondence (PDF, 1.5 mb)

Appendix H – Proposed Roadway Haul Route Maps (PDF, 753 kb)


For more information or a printed copy of the documents, contact:

Kelly R. Baxter, NEPA Specialist
Tennessee Valley Authority
400 West Summit Hill Drive, WT 11D
Knoxville, TN 37902-1499

Phone: 865-632-2444; Fax: 865-632-3451




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