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Jersey Valley Geothermal Development Project Environmental Assessment: NV063-EAO8-091 12-inch wide trench would be excavated to an average depth of approximately three feet deep along the pipeline sleepers. The pipelines would be constructed across roads to allow continued vehicle access, either by trenching under the road, or running the roadbed up and over the pipeline. Photo 2 below shows a typical pipeline with electrical cables. Photo 2: Typical Pipeline with Electrical Cables 2.1.6.3 Operation and Maintenance Procedures for the Transmission Line Maintenance would include transmission line and pole repair and/or replacement. No routine maintenance would be performed on the transmission line. Ormat would annually inspect the transmission line from a light, off-road vehicle. Repairs and/or facility replacement would transpire, as necessary. Routine travel within the ROW is not expected. - 18-
Jersey Valley Geothermal Development Project Environmental Assessment: NV063 -EAO8 -091 2.1.7 Water Requirements and Source For activities within the Jersey Valley Unit Area, water required for well drilling could range up to as much as 30,000 gallons per day. Water requirements for grading, construction, and dust control would average substantially less. Construction of the power plant and related facilities would require approximately 5,000 gallons per day (5.60 acre-feet per year) during construction of the power plant. Water necessary for construction activities within the Jersey Valley Unit Area will be obtained from established private ranch sources Home Station Ranch (NW1/4 Section 7, T.26N., R.40E.) or McCoy Ranch (SE1/4 Section 29, T.26N., R.39E.) and trucked onsite (see Figure 6). Additional water may be obtained from a well owned by the Saval Ranch Company on private lands within the Jersey Valley unit (NW/14, SW1/4 Section 34, T.27N. R.40E.) and piped to the power plant site (see Figure 6). The temporary construction pipeline would be laid on the side of the existing roads and no additional surface disturbance is anticipated. Up to approximately 325 gallons of water will be consumed per day for the facility operations (0.37 acre-feet per year). This water will be obtained from the established private ranch sources identified above (see Figure 6). This water, used for septic purposes, will be trucked to the power plant and stored onsite. Drinking water will be purchased from a commercial bottled water source. 2.1.8 Aggregate Requirements and Source(s) As much as possible, native materials (derived from grading to balance cut and fill) will be used for site and road building materials. For activities within the Jersey Valley Unit Area, total aggregate required for the well pad and access road construction is estimated at 40,250 cubic yards. Approximately 92,000 cubic yards of surfacing material may be needed for power plant and pipeline construction. Aggregate would be obtained from an established Lander County aggregate pit in NE1/4, SE1/4, Section 21, T.27N. R.40E. Additionally, the existing pit will be expanded approximately 5.5 acres to the southeast (SW1/4, SW1/4 Section 22, T.27N. R.40E.) to accommodate the Project’s aggregate needs (see Figure 4). Permanent and temporary surface disturbance associated with aggregate sources can be found in Table 5. 2.1.9 Work Force and Schedule Drilling would be conducted by a crew of 9-10 workers with as many as 18 workers on site during short periods. Power plant and pipeline construction would likely require a maximum of up to 50 workers, with an average of 20 workers after grading and excavation. Substation andlor switching station construction would be conducted by approximately 25-30 workers for site and grid layout; thereafter, approximately 5 workers would be needed for construction of the -19-
Page 1 and 2: In Reply Refer To: N-881 18 3200 (N
Page 3 and 4: The BLM MLFO has determined that in
Page 5 and 6: APPEAL PROVISIONS Decisions may be
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Page 15: ATFACHMENT B ENVIRONMENTAL ASSESSME
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Page 20 and 21: Jersey Valley Geothermal Developmen
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Page 48 and 49: LEGEND I Jersey Valley Staging Area
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Jersey Valley Geothermal Developmen
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Appendix A: Geothermal Lease Stipul
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Finding of No Significant Impact Fo
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1 NI::- •: I, — Ii
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The “wetlands” potentially impa
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The EA’s mitigation and permit ap
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• •., •• ‘t! •: •*
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Form 2800- Issuing Office 14 (Augus
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I Table 1: Legal Description of Tra
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Jersey Valley Master Title Plat and
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— Figure 12: Jersey Valley Unit A
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9. The Holder shall comply with all
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shall be supported by a stipulation
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Form 2800- 14 (August 1985) UNITED
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Table 1: Legal Description of Trans
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Buffalo Valley (NVN-83484X) E Jerse
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May 10, 2010 N-87409 EXHIBIT B 1.0
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approved in writing by the Authoriz
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(4 4
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Form 2800- Issuing Office 14 (Augus
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—y . —i I I RO.*D 10 1. I. —
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____________ Buffalo Valley Jersex
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May 10, 2010 N-88390 EXHIBIT B 1.0
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shall be supported by a stipulation
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Form 2800- 14 (August 1985) UNITED
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A PA a,. 0.25 i8’ NoUm Maptent VV
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The Authorized Officer must approve
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Attachment E CONDITIONS OF APPROVAL
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Migratory Birds Attachment E CONDIT
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Migratory Birds Attachment E CONDIT
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Lands & Realty Attachment E CONDITI
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ATTACHMENT F EA COMMENT RESPONSES T
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for increased patrols to the Jersey
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