DRAFT ENVIRONMENTAL ASSESSMENT Fallon Frontier Observatory for Research in Geothermal Energy (FORGE) Geothermal Research and Monitoring


The United States Department of Interior, Bureau of Land Management (BLM) Carson City District, Stillwater Field Office, and the United States Department of the Navy (Navy), as co-lead agencies, have prepared this environmental assessment (EA) to analyze potential environmental impacts from the Fallon Frontier Observatory for Research in Geothermal Energy (FORGE) geothermal research and monitoring project. The project area is in Churchill County, Nevada, approximately 7 miles southeast of the city of Fallon.


The Proposed Action is for the BLM and Navy to facilitate, where appropriate, the research and development of geothermal resources, including enhanced geothermal systems (EGS) technologies, on federally managed and leased lands. The Proposed Action includes the construction of up to 12 production/injection and monitoring well pads with drilling sumps; placement of two stimulation fluid containment basins; drilling of 13 new geothermal wells; construction of access roads, an above ground water line, and other support facilities; and hydraulic well stimulation using EGS technology.


There has been extensive geothermal exploration activity and monitoring within and surrounding the FORGE project area for which the Navy and BLM have prepared NEPA documentation. The BLM’s 2011 Salt Wells Energy Projects Environmental Impact Statement and Naval Air Station Fallon’s 1990 Programmatic EIS for Geothermal Energy Development are the primary NEPA documents supporting the ongoing geothermal exploration, monitoring, and related activity in the project area. Where applicable, this EA refers to the affected environment description and analysis of potential impacts included in these documents.


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