LLNV-WO1000-2009-0002-EA

From Open Energy Information


NEPA Document Collection for: LLNV-WO1000-2009-0002-EA
EA at Jersey Valley Geothermal Area for Geothermal/Exploration

EA for Observation Wells at Jersey Valley II Geothermal Exploration Project

Proposed Action

In November 2008, the BLM, HRFO approved an EA for the Jersey Valley II Geothermal Exploration Project, also for the drilling and testing of observation and full-sized wells and access road construction, as appropriate. The two currently approved wells under this EA (LLNV-WO1000-2009-002-EA) are 77-28 and 13-34 (see Figure 2). Total surface disturbance associated with the Jersey Valley II Exploration Project was less than 10 acres.

Conditions of Approval

Ormat would also comply with all special lease stipulations attached to leases NVN-77483, NVN-74881, and NVN-74883, which apply to Project operations (Appendices A, B, and C).

Data Completion Notes

Data entry complete 8/15; Need to add Public Health and Safety as a resource

9/18/2013 Geothermal Area is Jersey Valley, add to area list









 

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.

Air quality in the Project area has been designated as "attainment/unclassified" for all criteria air pollutants.

Close• Water would be applied to the ground during the construction and utilization of the drill pads and access roads, as necessary, to control dust.
 
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.

The Project area has been frequented and utilized in prehistoric, historic and modem time.

   
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) could result in the direct loss of up to 9.75 acres of potential migratory bird habitat.

 
Close•Surface disturbing activities during the migratory bird nesting season (March to July} may be restricted in order to avoid potential violation of the Migratory Bird Act.

• Initial ground disturbing activities would not be conducted during the migratory bird nesting season (March through July) unless necessary, and then only after inventories for migratory birds and nests were conducted by a qualified biologist acceptable to the BLM. This survey would be conducted to identify either breeding adult birds or nest sites within the specific areas to be disturbed. If active nests are present within these areas to be disturbed, Ormat would

coordinate with the authorized officer to develop appropriate protection measures for these sites, which may include avoidance, construction constraints, and/or the establishment of buffers.
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.

Jersey Valley hot springs is believed to have some cultural significance to the Battle Mountain Band of the Te-Moak Tribe of the Western Shoshone and the Summit Lake Paiute Tribe.

CloseAs all Project activities are located at least 1 ,000 feet away from the springs, and the Project is

short-term and temporary, it is anticipated that the Project would not affect the cultural

significance of the springs.
 
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.

BLM geothermal leases NVN-77483 and NVN-74881 have a specific environmental protection stipulation for riparian areas.

 
CloseRiparian Areas • A No Surface Occupancy within 650 feet of any surface water bodies, riparian areas, wetlands, playas or 1 00-year floodplains has been established. Exceptions to this stipulation will occur on a case-by-case basis.
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.

The proposed access for drill pad 13-34 in section 34 has slope areas greater than 1 0 percent and also has several ephemeral or relict drainages.

 
CloseTen days prior to start of dirt work for construction of the new access road to well pad 13-34, a pre-construction meeting with the dirt work contractor and the BLM/HRFO, Engineering Supervisor, or the Supervisor's representative will be required. The purpose of the meeting will be to coordinate final road placement, angle, and any necessary culvert placement.
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 could disturb up to 9. 75 acres.

 
CloseAs part of the Project, disturbed areas would be re-contoured as necessary and reclaimed in accordance with applicable BLM requirements.
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.

Surface-disturbing activities from the Project would result in the loss of up to 9. 75 acres of this common plant community.

 
CloseAll areas of exploration disturbance will be reclaimed including recontouring disturbed areas and reseeding the areas with a diverse perennial weed-free seed mix.

If any well will be sitting idle for longer than one year, the well pad shall be scarified and seeded with the recommended seed mix.

Upon abandonment of the wells, the following shall be done: The wells shall be plugged to comply with all Federal and State of Nevada regulations. All reclamation of disturbed areas shall be completed within one year from the date of proper plugging and abandonment of the well. Any constructed roads, drill pads and reserve pits shall be recontoured to original grade, salvaged topsoil spread on the disturbed area and the site scarified. The disturbed area shall be seeded by hand broadcasting or drilling with the BLM recommended seed mixture. The area shall be raked or dragged to cover the seed if broadcast seedin·g is used. The BLM Winnemucca Field Office shall be notified in writing when reclamation operations commence and are completed. Seeding of disturbed areas will be completed using the following native seed mixture and application rate. Any variance in the mix would be coordinated with the BLM

Winnemucca Field Office.
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 a temporary loss of an additional 9.75 acres, for a total project disturbance of jusf under 20 acres of wildlife habitat.

 
CloseOver time and subsequent to site reclamation, habitat would be restored.
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.

The Proposed Action is unlikely to effect the panid bat or Townsend's big eared bat due to the short-term, temporary nature of the project; the absence of any drilling materials or produced waters on-site which could harm the bats; and the distance from the areas of surface disturbance to the maternity colony and hibernaculum.

 
Close• To protect the Pallid bat (Antrozous pallidus) and Townsend's big-eared bat (Corynorhinus townsendil) using mine adits In sections. 27 and 35, T27N, R40E, a 0.25-mlle No Surface Occupancy has been instituted.

• A No Surface Occupancy within 2 miles of known leks at all times has been instituted to protect sage grouse leks.

• An avoidance stipulation with a range of between 0.6 and 2 miles has been established for known nesting, brood -rearing, and winter habitat.
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.

BLM geothermal lease NVN-7 4883 has a specific environmental protection stipulation for paleontological resources

 
Close• Where significant paleontological resources are identified, mitigating measures such as data recovery, restrictions on development, and deletion of some areas from development may be required on a case by case basis.
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• Portable chemical sanitary facilities would be available and used by all personnel during periods of well drilling and/or.flow testing. These facilities would be maintained by a local contractor.

• Solid wastes (paper trash and garbage) generated by the operations would be transported offsite to an appropriate landfill facility.

Surface-disturbing activities on either of the two unnamed Miocene to Pliocene sedimentary units (Qtoa and Ts) will require pre-disturbance surveys to determine the appropriate subsequent course of action, which could include monitoring by a qualified paleontological monitor during surface-disturbing activities, avoidance of identified significant fossil localities, or no further action.

A completed pre-disturbance survey report must be submitted to the BLM, HRFO ten days prior to any surface disturbance on either of the two unnamed Miocene to Pliocene sedimentary units (Qtoa and Ts).
 
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 because all Project activities are located at least 1 ,000 feet away from the springs.

Close• A Spill or Discharge Contingency Plan is a part in the Operations Plan.
CloseLessee shall monitor and collect the following hydrologic data from each of the two springs known as the Jersey Valley Hot Springs, which are located In the SW1/4SW1/4 of Section 28 and the SE1/4SE1/4 of Section 29, respectively:

o Representative temperature, flow or stage, and basic thermal water chemistryonce immediately prior to the commencement of drilling and once immediately following the completion of drilling;

o During the drilling or flow testing of slim or full-size well 86-29 or when extracting water from any groundwater wells - Representative temperature and flow or stage from each spring - once each week until drilling, flow testing or water extracting is completed;

o Each year following the drilling of the first well until all wells have been abandoned - Representative temperature, flow or stage measurements, and basic thermal water chemistry- once per year.

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