Grand Coulee Transmission Line

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NEPA Document Collection for: Grand Coulee Transmission Line
Environmental Analysis for N/A

Grand Coulee's Third Powerplant 500-kilovolt Transmission Line Replacement Project, Preliminary Environmental Assessment

General NEPA Document Info
Energy Sector Transmission

Environmental
Analysis Type

Applicant

Bonneville Power Administration
Consultant N/A

Geothermal Area

Project Location

Project Phase

Techniques

Time Frame (days)
NEPA Process Time 893
Participating Agencies

Lead Agency

BOR

Funding Agency

none provided

Managing District Office

none provided

Managing Field Office

none provided

Funding Agencies

none provided

Surface Manager

none provided

Mineral Manager

none provided
Selected Dates
EID Federal Register Date 2009/07/06
Scoping Initiated Date 2009/07/06
Preliminary EA-EIS Date 2011/05/02
Final EA-EIS Date
/Public Comment Period
2011/12/16
Decision Document Date 2011/12/16
Relevant Numbers
Lead Agency
Doc Number
DOE/EA-1679

Proposed Action

Bonneville Power Administration (BPA) has been asked by the Bureau of Reclamation (Reclamation) to design and construct six new 500-kV transmission lines at Grand Coulee Dam.

These proposed new overhead lines would replace six existing underground lines. The existing lines consist of eighteen aging, oil-filled cables between Grand Coulee's third powerhouse and the 500-kV spreading yard, both of which are operated and maintained by Reclamation. In the current underground configuration, the cables are more susceptible to threats like fire, which could likely lead to multiple line failures in the future. The proposed overhead solution is less likely to experience multiple line failures, which helps ensure safe and reliable transmission of power from Grand Coulee Dam. The new lines would transfer power that is generated at the third powerhouse, across the Columbia River near the visitor center area, and then proceed uphill where they will connect to existing lines that transfer power from this area into the Regional power grid.

Conditions of Approval

BPA and its Contractor are responsible for implementation of mitigation measures during various phases of the project. A Mitigation Action Plan (MAP) was prepared as part of the Finding of No Significant Impact (FONSI) for the Preferred Alternative. The MAP includes all of the integral elements and commitments made in the Environmental Assessment (EA) to mitigate potential adverse environmental impacts. The purpose of the MAP is to explain how the mitigation measures will be implemented, who is responsible for implementation, and at what time during the project they will be implemented. The MAP is available for download at: http://efw.bpa.gov/environmental_services/Document_Library/Grand_Coulee/GrandCoulee_MitigationActionPlan.pdf

Data Completion Notes

A complete record of project documents can be found on the BPA website at: http://efw.bpa.gov/environmental_services/Document_Library/Grand_Coulee/

Documents

 
 
 

 
 
 
 
EA/EIS Report: 
FONSI: 
 
 
 
 

Resource Analysis

Resource Not
Present
Present,
Not
Affected
Present,
Potentially
Affected
Not
Indicated
Comment Applicant
Proposed
Mitigation
Agency
Imposed
Mitigation
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  
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  
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  
Water Quality Surface and Ground
"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  
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.

 

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  
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.

 

   
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.

 

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  
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.

 

   
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.

 

   
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.

 

   
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  
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  
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