SUPPLEMENTARY INFORMATION:

Western and BLM filed a Notice of Intent (NOI) to Prepare an EIS/SA and possible Land Use Plan Amendment for the proposed Project which was published in the Federal Register on March 29, 2010 (75 FR 15427).^[1] Western and the BLM held public scoping meetings in Big River, CA, on March 31, 2010, and in Palm Desert, CA, on April 1, 2009. The formal scoping period ended April 28, 2010. Comments received during the scoping period were considered in preparing the Draft EIS/SA.

Proposed Project: The proposed Project is a 150 megawatt (MW) solar electric power plant that would use concentrating solar “power tower” technology to capture the sun's heat to make steam, which would power traditional steam turbine generators. The solar generation facility, located on privately owned land, would contain the power block, a central receiver or tower, a solar field consisting of mirrors or heliostats to reflect the sun's energy to the central tower, a thermal energy storage system, technical and non-technical buildings, a storm water system, water supply and treatment system, a wastewater system, evaporation ponds, construction parking and laydown areas, and other supporting facilities. The proposed Project would use an air cooled condenser ( i.e., dry cooling technology) for power plant cooling. Water for the Project (up to 180 acre-feet per year) would be obtained from two new on-site wells. Rice Solar Energy, LLC (RSE) has applied to Western to interconnect the proposed Project to Western's transmission system. A new 10-mile long 161-kV/230-kV generator tie-line would extend from the southern boundary of the solar facility boundary to a new substation to be constructed adjacent to Western's existing Parker-Blythe transmission line. The substation would be owned and operated by Western and would be approximately three acres in size.

RSE has submitted a right-of-way (ROW) application to the BLM for the Project components (the generator tie-line, substation, access road, and fiber optic line) to be constructed on a total of approximately 12 acres of land managed by the BLM. The Project site is in an undeveloped area of the Sonoran Desert in eastern Riverside County, California, near State Route 62, approximately 40 miles northwest of Blythe, California, and 15 miles west of Vidal Junction, California, on lands managed by the BLM.

RSE also submitted an application to the DOE LGP seeking a guarantee for the proposed Project. The LGP invited RSE to enter into the due diligence process on June 25, 2010, and then initiated NEPA review. The LGP is participating in the preparation of the Draft EIS/SA to ( printed page 66079) ensure that analyses needed to satisfy its NEPA obligations for its loan guarantee decision are included.

Agency Purpose and Need: Western's purpose and need for the RSEP is to respond to RSE's requested interconnection in accordance with Western's Open Access Transmission Tariff. LGP's purpose and need for the RSEP is to determine whether RSE's project is eligible for a guarantee under EPAct 2005. DOE is using the NEPA process to assist in determining whether to issue a loan guarantee to RSE to support the proposed project. The BLM's purpose and need for the RSEP is to respond to RSE's application under Title V of FLPMA (43 U.S.C. 1761) for a ROW grant to construct the 161-kV/230-kV transmission line, substation, access road, and fiber optic line on public lands in compliance with FLPMA, BLM ROW regulations, and other applicable Federal laws. The BLM will respond to RSE's ROW application by approving, approving with modifications, or denying RSE'S application.

Proposed Agency Actions: Western's proposed action is to interconnect the proposed Project to Western's existing Parker-Blythe transmission line and to replace an overhead ground wire on its existing Parker-Blythe transmission with a fiber optic ground wire to allow communication from the new plant to the existing system. The LGP's proposed action is to issue a loan guarantee to RSE. The BLM's proposed action is to authorize a ROW in favor of a 161-kV/230-kV transmission line, access road, and fiber optic line. The BLM would also amend the CDCA Plan to include this project. The CDCA Plan (1980, as amended), states that new electric transmission facilities on lands designated as Multiple-Use Class M may be allowed only within designated corridors. If the BLM decides to grant a ROW for this Project, the CDCA Plan would be amended to designate a new utility corridor in support of the 161-kV/230-kV electrical transmission towers and cables.

Western, LGP, BLM, and the CEC have agreed to conduct a joint environmental review of the proposed Project in a single combined NEPA/CEQA process and document. For purposes of NEPA compliance, Western, on behalf of DOE, is serving as the lead Federal agency with the BLM acting as a cooperating agency. The Draft EIS/SA analyzes site-specific impacts on air quality, biological resources, recreation, cultural resources, water resources, geological resources and hazards, hazardous materials handling, land use, noise, paleontological resources, wilderness characteristics, public health, socioeconomics, soils, traffic and transportation, visual resources, waste management, worker safety and fire protection, as well as facility design engineering, efficiency, reliability, transmission system engineering, and transmission line safety and nuisance.

As required under NEPA, the draft EIS/SA analyzes a no action alternative that would not require a CDCA Plan amendment. The draft EIS/SA also analyzes two no-project alternatives that reject the proposed Project but amend the CDCA Plan to (1) designate the project area as available to future solar energy power generation projects or (2) designate the project area as unavailable to future solar energy power generation projects.

75 FR 66078