Transwest Express

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NEPA Document Collection for: Transwest Express
EIS

Transwest Express Transmission Project Environmental Impact Statement

General NEPA Document Info
Energy Sector Transmission

Environmental
Analysis Type

EIS

Applicant

TransWest Express LLC TWE
Consultant AECOM

Geothermal Area

Project Location

Project Phase

Techniques

Time Frame (days)
Participating Agencies

Lead Agency

Wyoming

Funding Agency

none provided

Managing District Office

Managing Field Office

none provided

Funding Agencies

none provided

Surface Manager

none provided

Mineral Manager

none provided
Selected Dates
Pre-Application
Meeting Date
2008/12/01
Application
Document Type
NOI, POD, ROW
EID Federal Register Date 2011/01/04
Scoping Initiated Date 2011/01/04
Preliminary EA-EIS Date 2013/07/03
NEPA Schedule Comments
TWE Project Final EIS is scheduled for release on Sept. 19, 2014, with the Record of Decision scheduled for Dec. 19, 2014.
Relevant Numbers
Lead Agency
Doc Number
BLM/WY/PL-13/021+5101

Proposed Action

The TransWest Express Transmission Project (Project) is proposed as an extra high voltage, direct current (DC) transmission system extending from south-central Wyoming to southern Nevada. The proposed transmission line (and alternatives) cross four states (Wyoming, Colorado, Utah, and Nevada) encompassing lands owned or administered by the Bureau of Land Management (BLM), United States (U.S.) Forest Service (USFS), National Park Service (NPS), Bureau of Reclamation, Utah Reclamation Mitigation and Conservation Commission, various state agencies, Native American tribes, municipalities, and private parties. The Project would provide the transmission infrastructure and capacity necessary to deliver approximately 3,000 megawatts (MW) of electric power from renewable and/or other non-renewable energy resources in south-central Wyoming to southern Nevada. One MW (or 1 million watts) of power can deliver approximately 6.5 million kilowatt-hours (kWh) of electricity in 1 year. An average U.S. household consumes about 10,655 kWh of electricity in a year. Therefore, 1 MW of power provides electricity for 610 households’ annual use (American Wind Energy Association 2008). The Project would transmit power for over 1,800,000 households annually. In April 2010, TransWest Express LLC (TransWest/Applicant) and Western Area Power Administration (Western), an agency of the U.S. Department of Energy, entered into a Memorandum of Understanding (MOU) in which Western agreed to act as joint lead agency with the BLM in the preparation of the EIS in accordance with the National Environmental Policy Act of 1969, as amended (NEPA).

Conditions of Approval

View the Final EIS (FEIS) here: http://www.blm.gov/wy/st/en/info/NEPA/documents/hdd/transwest/FEIS.html

Data Completion Notes

Updated May 2016.

Link to document library: http://www.blm.gov/wy/st/en/info/NEPA/documents/hdd/transwest/docs.html

Documents

 
 
 

 
 
 
 
EA/EIS Report: 
 
 
 
 
 

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.

 

proposed  
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.

 

proposed  
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.

These sites occur between 25-100 miles from the proposed action's pathway.

   
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.

 

proposed  
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.

 

proposed  
Water 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.

 

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.

 

proposed  
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.

Areas with rehabilitation constraints (e.g., highly erodible or droughty soils, low precipitation amounts, etc.) can have little to no reclamation success, unless additional mitigation measures are implemented.

proposed imposed
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.

 

proposed imposed
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.

 

  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.

 

proposed  
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.

 

proposed  
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.

 

   
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.

 

proposed  
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.

 

proposed  
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.

 

proposed  
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.

 

proposed  
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.

 

  imposed
Public Health and Safety
"NEPA_Resource_Analysis" is not in the list of possible values (Not Present, Present, Not Affected, Present, Potentially Affected, Not Indicated) for this property.

 

proposed  
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.

Application of WH-1 would reduce impacts to wild horse management during construction, but would not mitigate for the impacts to gathers during operation of the line. The refined transmission corridors would cross the Piceance-East Douglas Creek HMA and North Piceance HA near their western borders, leaving the majority of the HMA and HA unaffected. The 250-foot-wide transmission line ROW would bisect the western portion of the West Douglas HA. Presence of a transmission line in this area would affect the use of helicopters for the gather of wild horses.

proposed  
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.

 

  imposed
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.

 

proposed  
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.

 

proposed