Linac Coherent Light Source at the Stanford Linear Accelerator Center


SCH Number
Lead Agency
United States Department of Energy
Document Title
Linac Coherent Light Source at the Stanford Linear Accelerator Center
Document Type
EA - Environmental Assessment
Present Land Use
offices, laboratory buildings, support facilities, roadways, parking areas, and landscaping. The Menlo Park City General Plan land use zoning for the site is "residential".
Document Description
The DOE proposes to construct the LCLS at SLAC. The LCLS would be the world's first x-ray free electron laser (FEL) that would produce x-ray laser pulses that are billions of times more intense than those from existing synchrotron sources. The LCLS would take advantage of the existing infrastructure at SLAC and would install a new photoinjector at sector 20 of the 30 sector linear accelerator (linzc), the last kilometer of the linac would be modified to accelerate the electrons to be used in the LCLS. A 120 meter long undulator magnet would be fabricated and installed in the existing Final Focus Test Beam facility and two new experimental halls would be constructed. The LCLS would further DOE's mission of planning, constructing, and operating user facilities to provide special scientific and research capabilities to serve the needs of U.S. universities, industry, and federal laboratories.

Contact Information

Janet Neville
Agency Name
U.S. Department of Energy
Contact Types
Lead/Public Agency


Menlo Park
San Mateo
Cross Streets
Sand Hill Road and Saga Lane
Total Acres
State Highways
LaEntrada, Oak Knoll, and Hill View schools, and Stanford Univ.
San Francisquito Creek

Notice of Completion

Review Period Start
Review Period End
Development Types
Project Issues
Cumulative Effects, Land Use/Planning, Noise, Transportation
Reviewing Agencies
Air Resources Board, Major Industrial Projects, California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Department of Water Resources, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency, California Department of Transportation, District 4 (DOT)
Reviewing Agency Comments
California Department of Transportation, District 4 (DOT)

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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