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DOE-EA-1759
Applicant Naknek Electric Association +
CompletionNotes Data entry complete 8/14  +
EnergyTechnology Geothermal energy  +
EnvironmentalAnalysisType EA +
FundingAgency United States Department of Energy +
GeothermalArea Bristol Bay Geothermal Area +
GeothermalDevelopmentPhases Geothermal/Exploration +
LeadAgency United States Department of Energy +
ManagingDistrictOffice Golden Field Office +
ManagingFieldOffice Golden Field Office +
MineralManager Naknek Electric Association +
NEPA-Name EA for Geothermal/Exploration at Southwest Alaska Regional Geothermal Energy Project Naknek, Alaska  +
NEPA CategoricalExclusion Media:CX-002447.pdf +
NEPA Completion Notes Data entry complete 8/14  +
NEPA DecisionDocumentDate May 28, 2010  +
NEPA FONSI Media:EA-1759-FONSI-2010.pdf +
NEPA FinalEA-EISDate April 2, 2010  +
NEPA FundingAgencyDocNumber DOE/EA‐1759  +
NEPA LeadAgencyDocNumber DOE/EA‐1759  +
NEPA PreliminaryEA-EISDate March 19, 2010  +
NEPA Proposed Action The Proposed Action would include the cons
The Proposed Action would include the construction, operation, drilling, well logging, completion, installation of a seismic monitoring network, and drilling of two wells (G2 and G3 on an existing gravel pad) to a depth of approximately 3,658 meters (m) (12,000 feet [ft]) below ground surface. If data from the wells indicate it is necessary, one well (G1, G2, or G3) would be stimulated to fracture the rock and increase permeability within the rock structure. Stimulation protocol would utilize EGS and would increase the potential of the field to produce energy.
potential of the field to produce energy.  +
NEPA Resource Analysis - Present, Potentially Affected Geothermal/Soils + , Geothermal/Air Quality + , Geothermal/Wildlife Resources + , Geothermal/Vegetation + , Geothermal/Induced Seismicity Impact + , Geothermal/Geology and Minerals + , Geothermal/Migratory Birds + , Geothermal/Social Values + , Geothermal/Economic Values +
NEPA Resource Applicant Mitigation An inert waste monofill—waste that is neit
An inert waste monofill—waste that is neither chemically nor biologically reactive would be disposed of here. A drilling fluids storage cell—36 m by 21 m by 4 m (117 ft by 70 ft by 14 ft) (300,000 gal). Drilling fluids are estimated to be less than 250,000 gal and would be stored here until they can be pumped back down the well into a lost circulation zone. A temporary cuttings storage area—drill cuttings are estimated to be 914 cubic m (1,000 cubic yards) per well and would be stored here until approved for disposal through beneficial reuse or in the inert waste monofill
icial reuse or in the inert waste monofill  +
, Efforts to control noise emissions would include installing the appropriate mufflers and noise abatement equipment, as necessary.  + , The Proposed Action does not involve placing fill in previously undisturbed areas, therefore, no impacts to wetlands or vegetation are expected.  +
NEPA Resource Comment Ground disturbance would be kept to a minimum to help prevent soil erosion during construction.  + , Under State of Alaska regulations, 18 AAC 50.502(c)(1)(C), the drilling, completion, and testing of well will not require an Alaska Department of Environmental Conservation, Air Quality Control Minor Permit  + , It is not anticipated that noise levels, associated only with temporary drilling activities, would be high enough to affect any biological resources in the area.  + , The development and existence of the proposed geothermal exploration and production facilities are not anticipated to have an effect on terrestrial mammals and would not obstruct movements.  + , The Bristol Bay region is home to the world’s largest sockeye salmon run. The major salmon producer near the project is the Naknek River.  + , NEA is committed to follow the IEA Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems to minimize impacts that may cause seismic events.  + , Locally, should EGS methodology be implemented, the geology would be affected due to the creation of additional cracks and fissures in rock layers from increased water pressure.  + , The proposed project would be located within or near breeding grounds, staging grounds, and migratory corridors for many species of land birds, waterfowl, shorebirds, and seabirds.  + , No threatened and endangered species are found in the immediate vicinity of the project area. Steller’s eider, however, use the coastal and marine environment near the project area or around the vicinity of King Salmon  + , A review of the wetland determination prepared by HDR, dated April 2009, shows wetlands within the vicinity of the Proposed Action.  + , While numerous archaeological sites have been identified in the broader Naknek River drainage, no known or potential cultural resources or archeological sites were identified within 3.2 km (2 mi) of the geothermal project area  + , Proposed activities would occur within the existing 49-hectare (120-acre) project area. The existing project area holds no special land use designation.  + , The aesthetic value of NEA’s project area
The aesthetic value of NEA’s project area is not likely to be greatly affected by proposed project development. Due to the existing drill pad and access road, the change in landscape would be minimal with 0.4 hectares (1 acre) of additional surface disturbance.
1 acre) of additional surface disturbance.  +
, Should drilling of geothermal wells G2 and G3 result in successful energy prospects, the long-term socioeconomic effect would result in power delivery to Bristol Bay Borough communities at a greatly reduced rate  + , The activities associated with proposed geothermal exploration are not expected to have any direct effects on water resources within the proposed project area.  +
NEPA Resource Imposed Mitigation Preserve vegetation where possible. Comp
Preserve vegetation where possible. Compact and seed topsoil on the perimeters of the drill pad and monofill and on the down-slope side of the access road. Five culverts would be used to control stormwater flowing through the project area. Silt fences would be installed to protect wetlands and drainages as described below: *At the toe of the slope where the road crosses through any poorly drained areas *At the north end of the drill pad to prevent sediment from contaminating the mapped wetland to the north. Sediment would be removed and taken to the inert waste monofill when it has reached 23 cm (9 inches) of accumulation Minimize the amount of land disturbance and develop and implement stringent erosion and dust control practices.
ingent erosion and dust control practices.  +
, Soils, material stockpiles, and other surfaces would be watered as necessary to reduce dust emissions. Roadways, laydown areas, storage areas, and gravel surfaces would be kept in clean condition.  + , Workers would be instructed to avoid distu
Workers would be instructed to avoid disturbances to terrestrial mammals as much as practical. Hazing, if necessary, would be performed only by designated personnel. Vehicles would not be used to haze wildlife. Reduce habitat disturbance by keeping vehicles on established access roads or well pads and by minimizing foot traffic in undisturbed areas. Report observations of potential wildlife problems, including wildlife mortality, to the appropriate wildlife agency. On-site facilities would be maintained in a sanitary manner to prevent attracting wildlife. Any food and putrescible waste would be stored so that it cannot be accessed by wildlife
so that it cannot be accessed by wildlife  +
, Temporary water use of a nearby pond is pe
Temporary water use of a nearby pond is permitted through ADNR. Additionally, no impacts to fish would occur because project activities are not occurring near fish streams, rivers, or lakes and activities would not disrupt sensitive periods of fish or their life cycle (e.g., spawning).
fish or their life cycle (e.g., spawning).  +
, Locate well pads outside of the 100-year floodplain.  + , Vegetation that is cleared for construction activities would be allowed to grow back to a natural state.  + , <br />This includes the following st
<br />This includes the following steps: *Review laws and regulations *Assess natural seismic hazard potential *Assess Induced Seismicity Potential *Establish a dialogue with Regional Authority *Educate Stakeholders *Establish Microseismic Monitoring Network *Interact with Stakeholders *Implement Procedure for Evaluating Damage
*Implement Procedure for Evaluating Damage  +
, No disturbances or displacement of Steller
No disturbances or displacement of Steller’s eiders are anticipated to occur. No habitat loss or alteration would occur because Steller’s eiders are not expected to use the habitat within the project area. Since no Steller’s eiders are anticipated to occur within the project area, mortality is not an issue.
e project area, mortality is not an issue.  +
, Develop a spill management plan. Erosion-control measures would be installed around any area that is disturbed during construction to minimize erosion and sedimentation flowing into waterways.  +
NEPA Resources Geothermal/Wastes Hazardous or Solid + , Geothermal/Soils + , Geothermal/Air Quality + , Geothermal/Noise + , Geothermal/Wildlife Resources + , Geothermal/Fisheries Resources + , Geothermal/Floodplains + , Geothermal/Vegetation + , Geothermal/Induced Seismicity Impact + , Geothermal/Geology and Minerals + , Geothermal/Migratory Birds + , Geothermal/Threatened and Endangered Species + , Geothermal/Wetlands and Riparian Zones + , Geothermal/Cultural Resources + , Geothermal/Lands and Realty + , Geothermal/Visual Resources + , Geothermal/Social Values + , Geothermal/Economic Values + , Geothermal/Environmental Justice + , Geothermal/Water Quantity +
NEPA ScopingInitiatedDate February 19, 2010  +
Name DOE-EA-1759  +
OpenEI/PageDescription : NEPA document related to geothermal resource areas   +
OpenEI/PageKeyword Geothermal  + , Bristol Bay Geothermal Area  +
Place Alaska: Energy Resources +
ProposedAction The Proposed Action would include the cons
The Proposed Action would include the construction, operation, drilling, well logging, completion, installation of a seismic monitoring network, and drilling of two wells (G2 and G3 on an existing gravel pad) to a depth of approximately 3,658 meters (m) (12,000 feet [ft]) below ground surface. If data from the wells indicate it is necessary, one well (G1, G2, or G3) would be stimulated to fracture the rock and increase permeability within the rock structure. Stimulation protocol would utilize EGS and would increase the potential of the field to produce energy.
potential of the field to produce energy.  +
SurfaceManager Naknek Electric Association +
Has query
"Has query" is a predefined property that represents meta information (in form of a subobject) about individual queries and is provided by Semantic MediaWiki.
DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 + , DOE-EA-1759 +
Has processing error
"Has processing error" is a predefined property provided by Semantic MediaWiki and represents errors that appeared in connection with improper value annotations or input processing.
DOE-EA-1759 + , DOE-EA-1759 +
Categories NEPA Doc , Geothermal energy
Modification date
"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
22:07:02, 22 March 2016  +
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
DOE-EA-1759#NEPAImpact_with_Wastes_Hazardous_or_Solid + , DOE-EA-1759#NEPAImpact_with_Soils + , DOE-EA-1759#NEPAImpact_with_Air_Quality + , DOE-EA-1759#NEPAImpact_with_Noise + , DOE-EA-1759#NEPAImpact_with_Wildlife_Resources + , DOE-EA-1759#NEPAImpact_with_Fisheries_Resources + , DOE-EA-1759#NEPAImpact_with_Floodplains + , DOE-EA-1759#NEPAImpact_with_Vegetation + , DOE-EA-1759#NEPAImpact_with_Induced_Seismicity_Impact + , DOE-EA-1759#NEPAImpact_with_Geology_and_Minerals + , DOE-EA-1759#NEPAImpact_with_Migratory_Birds + , DOE-EA-1759#NEPAImpact_with_Threatened_and_Endangered_Species + , DOE-EA-1759#NEPAImpact_with_Wetlands_and_Riparian_Zones + , DOE-EA-1759#NEPAImpact_with_Cultural_Resources + , DOE-EA-1759#NEPAImpact_with_Lands_and_Realty + , DOE-EA-1759#NEPAImpact_with_Visual_Resources + , DOE-EA-1759#NEPAImpact_with_Social_Values + , DOE-EA-1759#NEPAImpact_with_Economic_Values + , DOE-EA-1759#NEPAImpact_with_Environmental_Justice + , DOE-EA-1759#NEPAImpact_with_Water_Quantity +
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