Present, Potentially Affected
- Antelope Valley Neset (AVS - Neset 345 kV Transmission Line Project)
- BLM-NV-WN-ES-08-01-1310, NV-020-08-01 (Blue Mountain Geothermal Well Field and Power Plant EA)
- Barren Ridge Renewable Transmission (Barren Ridge Renewable Transmission Project Environmental Impact Statement)
- Big Eddy-Knight (Big Eddy-Knight Transmission Project Environmental Impact Statement)
- Boardman to Hemingway (Environmental Impact Statement and Land Use Plan Amendments for the Boardman to Hemingway Transmission Line Project)
- CA-96062042 (Fourmile Hill Geothermal Development Project Environmental Impact Statement (EIS) / Environmental Impact Report (EIR) for Geothermal/Power Plant, Geothermal/Well Field, Geothermal/Transmission)
- Cameron to Milford-138kV Transmission Line (Cameron to Milford - 138kV Transmission Line Project)
- Central Ferry Lower Monumental (Central Ferry-Lower Monumental 500-kilovolt Transmission Line Project)
- DOE-EA-1116 (Kalina Geothermal Demonstration Project EA for Geothermal/Power Plant, Geothermal/Well Field, Geothermal/Transmission)
- DOE-EA-1759 (EA for Geothermal/Exploration at Southwest Alaska Regional Geothermal Energy Project Naknek, Alaska)
- DOE-EA-1849 (EA for Northern Nevada Geothermal Power Plant Project at McGuinness Hills Geothermal Area)
- DOI-BLM-CA-EA-2002-??? (Glass Mountain Exploration Environmental Assessment/Initial Study for Geothermal/Well Field)
- DOI-BLM-CA-ES-2007-017-3200 (Final Environmental Impact Statement for the Truckhaven Geothermal Leasing Area)
- DOI-BLM-CA-ES-2013-002+1793-EIS (Casa Diablo IV Geothermal Development Project EIS at Long Valley Caldera Geothermal Area for Geothermal/Power Plant)
- DOI-BLM-NV-063-EA08-091 (Jersey Valley and Buffalo Valley Geothermal Development Projects EA for Geothermal/Power Plant)
- DOI-BLM-NV-B020-2011-0026-EA (Clayton Valley Geothermal Exploration Project EA for Drilling and Well Testing)
- DOI-BLM-NV-C010-2010-0006-EA (Gabbs Valley and Dead Horse Wells Geothermal Exploration Projects EA for Geothermal/Exploration)
- DOI-BLM-NV-C010-2010-0008-EA (EA at Soda Lake Geothermal Area for Geothermal/Exploration Drilling and Well Testing)
- DOI-BLM-NV-C010-2010-0010-EA (EA at Coyote Canyon and Dixie Meadows for Geothermal/Exploration Drilling and Well Testing)
- DOI-BLM-NV-C010-2010-0016-EA (EA for Airborne Electromagnetic Survey at Patua Geothermal Project for Geothermal/Well Field, Geothermal/Power Plant)
- DOI-BLM-NV-C010-2011-0001-EA (Coyote Canyon Utilization Project EA for TGP for Geothermal/Power Plant)
- DOI-BLM-NV-C010-2011-0516-EA (EA for Thermal Gradient Holes at Dixie Meadows Geothermal Exploration Project for Geothermal/Exploration, Geothermal/Well Field)
- DOI-BLM-NV-C010-2012-0029-EA (Tungsten Mountain Geothermal Exploration Project EA for Geothermal/Well Field Drilling and Well Testing)
- DOI-BLM-NV-C010-2012-0051-EA (Coyote Canyon South Geothermal Exploration Project EA for Geothermal/Exploration)
- DOI-BLM-NV-CC-ES-11-10-1793 (Salt Wells Geothermal Energy Projects EIS for Geothermal/Power Plant Development Drilling)
- DOI-BLM-NV-CO10-2011-0501-EA (EA for Phase II Production Wells and Thermal Gradient Holes at Patua Geothermal Project for Geothermal/Well Field)
- DOI-BLM-NV-W010-2010-0004-EA (New York Canyon Geothermal Exploration Project EA for Exploration Drilling and Well Testing)
- DOI-BLM-NV-W010-2011-0001-EA (EA of the Leach Hot Springs Geothermal Exploration Project at Grass Valley Geothermal Area for Geothermal/Exploration, Geothermal/Well Field Drilling and Well Testing)
- DOI-BLM-NV-W010–2012–0005–EA (EA for Development Drilling at New York Canyon Geothermal Utilization and Interconnect Project for Geothermal/Power Plant, Geothermal/Transmission, Geothermal/Well Field)
- DOI-BLM-NV-W030-2010-0006-EA (EA for Drilling and Flow Testing at San Emidio Geothermal Exploration Project for Geothermal/Exploration)
- DOI-BLM-OR-P000-2010-0003-EA (EA for Drilling, Testing and Monitoring of up to 12 Temperature Gradient / Passive Seismic Geothermal Exploratory Wells at Newberry Caldera Geothermal Area for Geothermal/Exploration)
- DOI-BLM-OR-P040-0021-EA (EA for Exploratory Wells at Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon for Geothermal/Exploration)
- DOI-BLM-OR-V040-2009-0059-EA (Department of Energy Loan Guarantee for U.S. Geothermal's Neal Hot Springs Geothermal Facility in Vale, Oregon for Geothermal/Power Plant)
- DOI-BLM-OR-V040-2011-0008-EA (EA for Neal Hot Springs Geothermal Well Construction Right of Way, Phase 2 for Geothermal/Well Field)
- DOI-BLM-UT-C010-2010-0042-EA (EA of Cove Fort/Sulphurdale Geothermal Utilization Plan for Geothermal/Power Plant)
- DOI-BLM-UT-W020-2010-0042-EA (EA for Thermal Gradient Holes at Drum Mountains and Whirlwind Valley Geothermal Exploration Projects for Geothermal/Exploration, Geothermal/Well Field)
- Devers Palo Verde No 2 (EIS/EIR Devers-Palo Verde No. 2 500kV Transmission Line Project)
- EA for Well Field Development at Patua Geothermal Area - DOI-BLM-NV-C010-2011-00016-EA (EA for Phase II of Patua Geothermal Project for Geothermal/Exploration, Geothermal/Well Field)
- Eldorado Ivanpah Transmission Project (EIS/EIR for the Eldorado-Ivanapah Transmission Project)
- Energy Gateway South (Environmental Impact Statement and Land Use Plan Amendments for the Energy Gateway South Transmission Project)
- Gateway West Transmission Line (Environmental Impact Statement for the Gateway West Transmission Line Project)
- Grand Coulee Transmission Line (Grand Coulee's Third Powerplant 500-kilovolt Transmission Line Replacement Project, Preliminary Environmental Assessment)
- LLNV-WO1000-2009-0002-EA (EA for Observation Wells at Jersey Valley II Geothermal Exploration Project)
- McNary-John Day (McNary-John Day Transmission Line Project Environmental Impact Statement)
- Mona to Oquirrh Transmission (Mona to Oquirrh Transmission Corridor Project and Proposed Pony Express Resource Management Plan Amendment)
- NV-020-03-26 (Desert Peak 2 Geothermal Project Environmental Assessment for Geothermal/Power Plant)
- NV-020-07-EA-01 (EA for Observation Wells at Jersey Valley Geothermal Exploration Project for Geothermal/Well Field, Geothermal/Exploration)
- NV-063-EA06-098 (Reese River Valley Geothermal Exploration Project Environmental Assessment)
- NV-EA-030-07-05 (EA for Thermal Gradient Holes at Salt Wells for Geothermal/Exploration)
- North Steens 230kV Transmission (North Steens 230-kV Transmission Project EIS)
- ... further results
Vegetation refers to the plant ground cover in a biota. Not only does vegetation impact soil volume, chemistry, texture, and density, but also wildlife food source. Certified botanists conduct surveys prior to geothermal development to assess the lasting affects of vegetation loss even if the duration of the project is short.
Vegetation Impacts & Mitigation
Geothermal construction and land maintenance activities require vegetation removal for surface disturbance. Typical impacts and mitigation measures include the following:
- Interim reclamation begins after drilling and well flow testing has been completed. To reduce erosion and unstable land, conduct shaping, contouring, and revegetation.
- Seeding occurs between October-December to prepare for grass and forb species. Shrub species will be seeded separately during the winter. Seeding is prohibited from May 15 to September 15. On Bureau of Land Management (BLM) managed lands, use weed free seeds, soil, and mulch. To reduce soil impacts, use drill and broadcast seeding followed by disking or harrowing.
- Native plants require the least amount of maintenance and mitigate invasive plant and animal species.
- Well pads and access roads reclamation occur when exploration or utilization not needed anymore. It is possible for interim reclamation to occur if other well pads are in operation.
- All wells dormant for more than a year will be capped and abandoned. The final reclamation mitigation measures will be completed within six months.
- Reclamation would be performed in accordance with lease stipulations.
- Reseeding would not be undertaken in areas where soil conditions are inappropriate or where the adjacent undisturbed land surface has little or no vegetation, as determined in coordination with a qualified biologist. Native soil material and organic matter (topsoil) salvaged from the site preparation operations would be reused as a topdressing on berms and other areas requiring revegetation to the extent If any well will be sitting idle for longer than one year, the well pad shall be scarified and seeded with the recommended seed mix.
- Weed management and concurrent reclamation would minimize the spread of invasive, nonnative species and would prevent residual impacts to vegetation
- Save and store topsoils on an approved site in stockpiles for reclamation use. In moist, clay soils, removing topsoils and vegetation decreases soil compaction during construction.
- Stockpiles are not to exceed two feet in height to promote healthy ecosystems for organisms living in the soil. Cover the piles to mitigate wind erosion. Contour the stockpiles when placed atop filled areas during reclamation to allow restoration to occur.
- Park all equipment and construction vehicles in areas with significantly less vegetation than the rest of the site.
- To mitigate swampy vegetation habitats, maintain the water level of the reserve pits below rooted vegetation. This will also mitigate unwanted insects. Line the channel where discharge water flows into the reserve pit with crushed rock or horizontal piping to encourage aquatic vegetation, but discourage sediment.