DOI-BLM-NV-C010-2012-0051-EA

From Open Energy Information


NEPA Document Collection for: DOI-BLM-NV-C010-2012-0051-EA
EA at Coyote Canyon Geothermal Area for Geothermal/Exploration

Coyote Canyon South Geothermal Exploration Project EA for Geothermal/Exploration

Proposed Action

This Environmental Assessment (EA) analyzes the potential impacts associated with the proposed construction and testing of geothermal exploration wells, access roads, and ancillary facilities in Dixie Valley, as well as the expansion of and extraction of materials from two aggregate pits in Churchill County, Nevada (Figure 1, Project Location and Gravel Sources). Terra-Gen Power Dixie Development Company (TGP) proposes to expand a previously approved geothermal exploration area, originally called “Coyote Canyon”. This new proposal is to explore the geothermal resource potential of lands directly to the south of Coyote Canyon in three additional federal geothermal leases, referred to here as the Coyote Canyon South (CCS) lease area (Lease Area). The Lease Area is on federal lands managed by the United States (US) Department of the Interior, Bureau of Land Management (BLM) in Dixie Valley. The BLM is the lead agency for this EA in accordance with the National Environmental Policy Act (NEPA) (40 Code of Federal Regulations [CFR] Parts 1500-1508).The purpose of the geothermal exploration is to confirm that sufficient reservoir capacity is available to allow long-term production. This EA analyzes potential impacts from the proposed exploration and testing activities. The exploration activities and associated gravel pit expansions and extraction are referred to as the Proposed Action. The geothermal leases held by TGP for the CCS exploration project contain 7,588 acres, which comprise the Lease Area. TGP proposes to conduct geothermal exploration in a portion of the Lease Area called the Project Area. Figure 2, Proposed Action and Lease Area. Shows the Lease Area and Project Area. An operations plan to drill and test up to 15 explorations wells at the Project Area was submitted to the BLM, Stillwater Field Office (SFO) in August 2011. Revised Operations Plans were submitted in October 2011 and again in December 2011.In addition to the exploration drilling program, mineral material sales contracts would be required for aggregate material obtained from three BLM-managed gravel pits. Gravel extraction from one of the pits was analyzed under a previous NEPA document, and so this EA addresses impacts associated with the other two pits. Individual geothermal drilling permits would be issued separately from this document


Data Completion Notes

Data entry is complete.

Documents

FONSI: Decision: Other: (these docs should be moved to "Other Documents")
 

<metadesc> : NEPA document related to geothermal resource areas </metadesc>

Resource Analysis

Resource Not
Present
Present,
Not
Affected
Present,
Potentially
Affected
Not
Indicated
Comment Applicant
Proposed
Mitigation
Agency
Imposed
Mitigation
Air Quality
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Areas of Critical Environmental Concern
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • TGP would comply with any requirements prescribed by the Nevada Division of Environmental Protection-Bureau of Air Pollution Control.
  • Dust abatement techniques, such as watering on unpaved, unvegetated surfaces, would be used during construction to minimize airborne dust.
  • Speed limits would be posted and enforced during construction and operation to reduce fugitive dust (speed limit of 25 miles per hour within the project site, as necessary).
  • Equipment and vehicle idling times during construction activities would be minimized.
 
Cultural Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • The Proposed Action would be designed to avoid sites determined eligible for listing on the National Register of Historic Places.
  • A 30-meter buffer would be placed around identified historic properties to avoid adverse effects.
  • Wells would be grouted and cased so that flood water could not penetrate if well pads are inundated. Construction equipment would be cleaned prior to project work (may be washed in Fallon prior to deployment).
  • TGP and its contractors would avoid known eligible and potentially eligible cultural resource sites during all phases of the project.
  • A 100-foot buffer zone would be established around eligible and potentially eligible cultural resource sites to help provide protection to the sites. The Proposed Action would not encroach into the established 100-foot buffer zone.
  • The project facilities would be operated in a manner consistent with the engineered design to prevent problems associated with run-off that could affect adjacent cultural sites. This includes the use of acceptable erosion control methods that are applicable to the site conditions.
  • Where the installation of project facilities could impact eligible or potentially eligible cultural sites(s), TGP would retain a qualified archaeologist to serve as a cultural monitor during construction of the facility in order to avoid potential effects to cultural site(s). The BLM would decide when cultural monitors are necessary.
  • Vehicle and equipment travel would be limited to established roads and roads that are part of the Proposed Action.
 
Environmental Justice
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Prime or Unique Farmlands
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Floodplains
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Invasive, Nonnative Species
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

 
Close
  • Existing weed infestations would be treated prior to disturbance. The location of the weeds would be communicated to the Stillwater Field Office weed coordinator, and treatment methods and herbicides used would be discussed prior to treatment.
  • Herbicides would be applied per label instructions.
  • All personnel applying herbicides would either be certified by the BLM and/or the State of Nevada, or they would be supervised by a BLM or State of Nevada Certified Applicator.
  • Bureau or other personnel applying herbicides would use personal protective equipment while spraying or handling herbicides
  • Herbicide application operations would be suspended when wind speed exceeds 6 miles per hour or when precipitation is imminent.
  • Some treatment areas could be signed, if needed, indicating the herbicide used and the date of treatment. Areas that are isolated and/or receive very little use by human beings would not be signed.
  • During herbicide treatments, a pre-application sweep of the area would be completed (i.e. looking for nesting birds).
Migratory Birds
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Components of the Proposed Action that would result in direct habitat loss within migratory bird nesting habitat would either occur prior to the nesting season or nest surveys would be conducted by a qualified biologist acceptable to the BLM prior to implementation. If nests are found, coordination with the BLM would occur to develop appropriate protection measures, which may include avoidance, timing constraints, and/or buffers.
  • Sumps would be fenced to exclude humans and wildlife, and if harmful properties occur in the geothermal fluids, the sumps be netted to exclude birds.
  • Adhere to Suggested Practices for Avian Protection on Power Lines (APLIC 2006) guidelines for design overhead utilities such as installation of perch deterrents.
 
Native American Concerns
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • If human remains are identified during construction of any of the components of the Proposed Action, work within 300 feet of the discovery would be stopped and the remains would be protected from further exposure or damage. If the remains are determined to be Native American, the BLM would follow the procedures set forth in 43 CFR Part 10, Native American Graves Protection and Repatriation Regulations.
 
Threatened and Endangered Species
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Wastes Hazardous or Solid
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Hazardous materials would be properly stored in separate containers to prevent mixing, drainage or accidents. Hazardous materials would not be drained onto the ground or into streams or drainage areas.
  • A Spill Prevention, Control, and Countermeasures plan would be developed, secondary containment structures would be used on site, and workers would be trained in spill prevention and cleanup methods.
  • Solid wastes would be transported offsite to an authorized landfill.
 
Wetlands and Riparian Zones
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Wild and Scenic Rivers
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Wilderness
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
BLM Sensitive Species
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Fire Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Wildlife Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

Close
  • Sumps would be fenced to exclude humans and wildlife, and if harmful properties occur in the geothermal fluids, the sumps be netted to exclude birds.
 
Lands and Realty
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Lands with Wilderness Characteristics
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Range Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Paleontological Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Recreation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Economic Values
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Soils
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Access and Transportation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Vegetation
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Visual Resources
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Wild Horse and Burro Management
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Geology and Minerals
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

   
Water Quantity
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.