NV-063-EA06-098

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NEPA Document Collection for: NV-063-EA06-098
EA at Reese River Geothermal Area for Geothermal/Exploration

Reese River Valley Geothermal Exploration Project Environmental Assessment

General NEPA Document Info
Energy Sector Geothermal energy

Environmental
Analysis Type

EA

Applicant

Sierra Geothermal Power

Geothermal Area

Reese River Geothermal Area

Project Location

Nevada

Project Phase

Geothermal/Exploration

Techniques

Slim Holes, Thermal Gradient Holes
Time Frame (days)
Application Time 142
Participating Agencies

Lead Agency

Bureau of Land Management

Funding Agency

none provided

Managing District Office

Battle Mountain

Managing Field Office

Funding Agencies

none provided

Surface Manager

BLM

Mineral Manager

BLM
Selected Dates
Application Date 2006/06/06
Application
Document Type
GPD, POO
Preliminary EA-EIS Date 2006/07/17
Decision Document Date 2006/10/26
NEPA Schedule Comments
EA date is estimate. Only July 2006 is known. Application date in Serial Register is for a TGH NOI tiered from EA
Relevant Numbers
Lead Agency
Doc Number
NV063-EA06-098
Serial Number NVN-083889
Lease Numbers

Proposed Action

Cayley Geothermal, Inc. (Cayley) is proposing to conduct the Reese River Valley Geothermal Exploration Project (Project), a geothermal resources exploration program of temperature gradient hole (TGH) and slim well drilling and testing on public lands leased for geothermal resource development in Lander County, Nevada (Figure 1). The area to be explored (Project area) consists of portions of federal geothermal leases NVN-78687, NVN-77247, NVN-78688, and NVN-76676. The Project area (see Figure 2) covers the entirety of Sections 32 and 33, and the W½ of Section 34, and SW¼ of the SE¼ of Section 34, Township 24 North, Range 43 East (T24N, R43E), Mount Diablo Baseline and Meridian (MDB&M); and the W½ of the W½ of Section 3, the entirety of Sections 4 and 5, the E½ of Section 6, and the N½ of the N½ of Sections 8 and 9, T23N, R43E MDB&M.

The Project (Proposed Action) includes (see Figure 3):

  • Drilling up to eight temperature gradient holes (including the improvement, reconstruction or construction of access roads, as necessary), each to a depth of either 300 or 1,000 feet and measuring the temperature profile in each TGH; and
  • Constructing drill pads on up to three of seven sites (including the improvement, reconstruction or construction of access roads, as necessary), drilling and completing a small-diameter (slim) well to a depth of about 4,000 to 5,000 feet from each of the three constructed drill pads, and flow-testing each completed slim well to obtain samples of the geothermal fluid and production information from the geothermal reservoir.

The total estimated area of new surface disturbance required for construction of the drilling pads and access roads would be a maximum of approximately 9.68 acres (see Figure 3)


Data Completion Notes

Argonne has EA file - maybe in NGDS?

8/9: Data entry complete.

KERMIT: Cayley Geothermal, Inc is the applicant. Have they changed to Sierrra Geothermal Power? Yes effective 4/11/07

Application date in Serial Register is after the decision date, so this may be the wrong serial register. SRP is for a NOI for a TG Well Tiered from EA,

10/31/13: Earlies NOI for TGW is 5/8/2006 SRP NVN-0832316, GDPs' 6/16/2006

When I saved edits the EA file disipeared form the page?

Documents

Serial Register Page:
 
 

 
 
 
 
 
FONSI: 
 
 
 
 

Resource Analysis

Resource Not
Present
Present,
Not
Affected
Present,
Potentially
Affected
Not
Indicated
Comment Applicant
Proposed
Mitigation
Agency
Imposed
Mitigation
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.

Project activities could contribute to the spread of invasive, nonnative species within the Project area through the proposed surface disturbing activities and the number of construction and drilling vehicles involved.

  imposed
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.

Project construction (regardless of the season constructed) would result in the direct loss of up to 9.68 acres of potential migratory bird habitat.

  imposed
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.

 

   
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.

 

  imposed
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.

The total estimated area of new surface disturbance required for construction of the drilling pad and access roads would be less than 9.68 acres.

  imposed
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.

Fugitive dust would be generated from earth-moving activities and travel on unpaved roads during drill pad and road construction and drilling activities, but the amount of land disturbed is below the level for which fugitive dust is regulated by the BAPC.

proposed  
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.

The proposed Project is not located in or near any ACECs (Ordaz 2006).

   
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.

There are no environmental justice issues associated with the Project Area (Ordaz 2006)

   
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.

There are no FEMA-designated 100-year floodplains in the Project area (FEMA 2006).

   
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.

The proposed Project is not located in or near any prime or unique farmlands (Mallory 2006a).

   
Special Status 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.

Project surface disturbing activities could result in the lost of up to 9.68 acres of potential special status species habitat.

  imposed
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.

Substantial quantities of diesel fuel, and smaller quantities of lubricants, hydraulic fluids and drilling chemicals (drilling mud, caustic soda, barite, etc.), would be transported to, stored on and used by the Project at the proposed drill sites

   
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.

The proposed Project is not located in or near any wetlands and/or riparian zones (Crimmins 2006)

   
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.

The proposed Project is not located in or adjacent to any wilderness areas or wilderness study areas (Perrin 2006b).

   
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.

The proposed Project is not located in or near any wild and scenic rivers (Ordaz 2006).

   
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.

As there are no geologic hazards, no active mining claims and no known deposits of salable or leaseable minerals within the Project area other than the geothermal resources leased to Cayley, the Project would have no effect on geology and minerals.

   
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.

The Project would disturb as much as 9.68 acres.

proposed  
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.

All surface-disturbing activities from the Project would result in the loss of up to 9.68 acres of these common plant communities.

  imposed
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.

The Project would result in the loss of approximately 9.68 acres of wildlife habitat.

   
Fisheries 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.

The proposed Project is not located in or near any fisheries (Mallory 2006c).

   
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.

This Project would disturb up to 9.68 acres, a small portion of the 63,663.8846 total acres within the allotment.

   
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.

The Project does not propose any activity which would prevent continued access by recreational users to the public lands within the Project area.

   
Social 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.

No social values would be affected by the proposed Project.

   
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.

The construction/drilling workforce is expected to consist of up to five workers for the TGH drilling and up to 10 workers for the slim well drilling.

   
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.

There are no rights-of-way or other land use authorizations in the Project Area (Lahr 2006)

   
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.

The Project would result in the loss of up to 9.68 acres of wild horse and burro habitat, constituting less than 1% of the New Pass/Ravenswood HMA.

   
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.

The Project would have little potential for adversely affecting the quality of either surface waters or ground waters in the Project area.