Sienna Solar Recirculated DEIR - PROJ-2022-00013

Sienna Solar Recirculated DEIR - PROJ-2022-00013

99MT 8ME, LLC (Applicant) plans to construct and operate a utility scale, solar photovoltaic electricity generation facility that would produce up to 525 megawatts (MW) of solar power and include up to 525 MW of energy storage capacity rate in a battery energy storage system within an approx. 1,854 acre site. Energy generated by the Project will be transmitted to SCE's electric grid via an inter-connection with the proposed SCE Calcite Substation. A Recirculated Draft EIR for the Project has been prepared to inform the public of the following changes to the original Draft EIR: 1)The environmental impacts associated with the proposed Calcite Substation will no longer incorporate by reference the information from the Stagecoach Solar Project Draft EIR (SCH# 2020100234). Since the end of the public review period for the Stagecoach Solar Project Draft EIR, the California State Lands Commission has not certified a Final EIR or made a decision to approve/reject the project. The County of San Bernardino will be the lead agency under CEQA for the proposed Calcite Substation; and 2)The Project applicant has included an additional 12.3 miles of gen-tie alternatives to be analyzed, which were not previously analyzed in the original Draft EIR.

San Bernardino

Unincorporated

California Air Resources Board (ARB), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 8 (DOT), California Department of Water Resources (DWR), California Energy Commission, California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Office of Historic Preservation, California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California State Lands Commission (SLC)

California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California State Lands Commission (SLC)

Power:Solar (Megawatts 525)

Use Permit

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Energy, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire