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SUBJECT CATEGORY: Valley Electric Association Interconnection of Ivanpah Energy Center to Mead Substation (DOE/EIS-0354)
DOCUMENT SUMMARY: The Department of the Interior, Bureau of Land Management
(BLM), prepared an Environmental Impact Statement (EIS) evaluating the
construction, operation and maintenance of the Ivanpah Energy Center
(IEC) power plant and ancillary facilities. The project would provide
500 megawatts (MW) of baseload power to the southern Nevada power grid.
As a cooperating agency for the EIS, the Department of Energy's (DOE) Western Area Power Administration (Western) considered the
environmental impacts of the Ivanpah Energy Center Project (Project)
and the interconnection to Western's Mead Substation. Western
specifically evaluated proposed modifications to facilities at the
substation. The modifications are necessary to accommodate the new
Valley Electric Association (VEA) 230kilovolt (kV) transmission line
interconnection for this new source of electric power. Western adopted
the BLM EIS on May 28, 2003. This Record of Decision (ROD) announces
Western's decision to grant the VEA interconnection request. Western
will ensure that its responsibilities under the National Historic
Preservation Act and the Endangered Species Act are met before the
interconnection is implemented.
SUMMARY: Ivanpah Energy Center, NV; construction, operation, and maintenance,
The Project is designed to provide electric power to the southern Nevada power grid. Currently, demand in the southwestern United States exceeds capacity and continues to increase. Peak demand energy requirements for the ArizonaNew Mexicosouthern Nevada Power Area are projected to grow at an annual compound rate of 3.3 percent between 2000 and 2010. Annual energy requirements for the period are expected to increase at a compound rate of 3.4 percent according to North American Electric Reliability Council projections. The Project action alternatives considered in the EIS would partially satisfy this projected need.
The Draft EIS evaluated two alternative plant sites, four
alternative transmission line alignments, and the No Action
Alternative. The Primm Plant site was selected as the environmentally
preferred alternative. However, this alternative became commercially [[Page 66411]]
unavailable to the Project proponent after the Draft EIS was published.
The Final EIS, therefore, evaluated only the proposed alternative plant
site (Goodsprings Site) and two associated alternative transmission line alignments, plus the No Action Alternative.
The proposed alternative is located entirely within Clark County, Nevada, and primarily on BLM land, within a BLM utility corridor, or on Western withdrawn land. The alternative principally consists of a 30 acre (permanent disturbance) site for the generation plant southeast of the town of Goodsprings, Nevada, and a new 230kV transmission line to Western's Mead Substation.
The plant design is a 500MW, natural gasfired, combinedcycle, dry and refrigerationcooled, baseload electrical power generation station, as described in the EIS. Associated Project components include an onsite power substation, transmission line interconnection for the proposed Table Mountain Wind Generation Facility, fiber optic ground wires, natural gas pipeline, water treatment plant, water supply pipeline, telecommunications cable, and necessary temporary and permanent access roads.
Two alternative transmission line alignments were considered,
Alternatives C and E. Both include interconnecting with the existing
VEA 230kV PahrumptoMead transmission line at the Goodsprings power
plant site and constructing a new GoodspringstoMead 230kV line.
Alternative E would generally follow or parallel the existing Pahrump
toMead line and rightofway southeast across the Ivanpah Valley, then
northeast across the McCullough Mountain Range and the Eldorado Valley
to Mead Substation (approximately 47.5 miles). Alternative C deviates
from Alternative E only along one line segment that remains on the west side of Eldorado Valley before crossing to Mead Substation
(approximately 47.8 miles). Regardless of the transmission line
alternative, the interconnection at Western's Mead Substation will
require constructing a new transmission line within the same alignment
across Western's withdrawn lands, and modifying the 230kV area of the substation.
The No Action Alternative would preclude construction and operation
of the proposed power plant, transmission line, and other Project components. Existing conditions would remain unchanged. No
environmental impacts are associated with the No Action Alternative,
but the generation, transmission, and end use of the proposed electric
power would be unavailable to potential users of the southern Nevada power grid.
The BLM released its Project ROD on October 23, 2003, granting BLM rightsofway for the Goodsprings Alternative plant site and
Alternative E transmission line alignment. Based on the need for the
Project and the results of the EIS, Western's decision is to grant the
interconnection request for the VEA transmission line component of the
Project. Western will facilitate the VEA 230kV Alternative E
transmission line approach across Western's withdrawn lands to Mead
Substation and modify current substation configuration to accommodate
the requested interconnection in the southeast portion of the 230kV
area within the Mead Substation. The No Action Alternative was not
selected because it would not meet the defined purpose and need for the
Project. Nor would this alternative allow Western to meet its
obligations to VEA, as defined by Western's General Requirements for
Interconnections and Western's obligations to provide interconnection under Section 211 of the Federal Power Act.
The Final EIS identified mitigation measures needed to reduce Project impacts. Specific measures are discussed in Section 1.3 on pages 12 to 16 of the Final EIS. Additional mitigation measures and standard practices are provided in the BLM Construction, Operations and Maintenance Plan.
The EIS impact analysis concluded that, with mitigation measures,
most impacts from the selected Project alternative would not be
significant. The only significant and unavoidable impacts of the
Project are to Category B (medium population density) desert tortoise
habitat. These impacts are associated with construction at the plant
site, telecommunication lines, access roads, water supply line, and
transmission lines. Significant impacts would result from direct incidental take during construction or operation, habitat
fragmentation, introduction of nonnative plant species, soil
compaction, and increased public access to the Project area.
The BLM provided a biological assessment outlining Project impacts to the U.S. Fish and Wildlife Service (FWS). In response, the FWS issued a Biological Opinion for the Project dated October 17, 2003. Western's decision is to grant the VEA interconnection request. However, the grant is issued with the condition that the Project must comply with the terms and conditions recommended in the FWS Final Biological Opinion to avoid, minimize, or mitigate any Project impacts to biological resources. Western will ensure that its responsibilities under the Endangered Species Act are met before the transmission system modifications are implemented.
The BLM has consulted with the State Historic Preservation Office and Native American Tribes. A Programmatic Agreement (PA) and treatment plan were developed to avoid, minimize, and mitigate adverse effects to historical and cultural properties. Western is a signatory to the PA and will ensure that its responsibilities under the PA and the National Historic Preservation Act are met before the action is implemented.
Western contacted 26 Native American Tribes during the Final EIS 30day waiting period to ensure it satisfied NationtoNation
consultation requirements regarding the Project. Western received no
response to its inquiries and no additional action is required.
The Project area does intersect 100year floodplains in a few locations, but individual and cumulative floodplain impacts associated with transmission line structure location and construction are negligible. There are no wetlands affected by the Project. However, Western will require appropriate measures to minimize any potential impacts.
Western is adopting those mitigation measures that apply to its action, the interconnection and authorization for use of its withdrawn land for the 230kV transmission line, and will issue a Mitigation Action Plan before any construction activity takes place. The Plan will address the adopted and standard mitigation measures. When completed, the Mitigation Action Plan will be made available to the public. Compliance With Regulations
This ROD has been prepared following Council on Environmental Quality 1 regulations for implementing NEPA (40 CFR parts 15001508) and DOE Procedures for Implementing NEPA (10 CFR part 1021).
Dated: November 18, 2003.
Michael S. Hacskaylo,
Administrator.
[FR Doc. 0329566 Filed 112503; 8:45 am]
BILLING CODE 645001P
FOR FURTHER INFORMATION CONTACT Mr. John Holt, Environmental Manager, Desert Southwest Customer Service Region, Western Area Power Administration, P.O. Box 6457, Phoenix, AZ 85005, telephone (602) 3522592, Email holt@wapa.gov. Copies of the EIS and the BLM Record of Decision are available from Jerry Crockford, Project Manager, BLM Farmington Field Office, 1235 La Plata Hwy, Suite A, Farmington, NM 87401, telephone (505) 5996333, Email jcrockford@nm.blm.gov. For information about the DOE National Environmental Policy Act (NEPA) process, contact Carol M. Borgstrom, Director, NEPA Policy and Compliance, EH42, U.S. Department of Energy, 1000 Independence Avenue SW., Washington, DC 20585, telephone (202) 5864600 or (800) 4722756.
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