Granite Mine Expansion Project

6 Documents in Project


SCH Number
Lead Agency
City of Twentynine Palms
Document Title
Granite Mine Expansion Project
Document Type
EIR - Draft EIR
Present Land Use
RL-2.5 (Rural Living, 2.5 acre lot minimum) and Community Industrial (CI)
Document Description
Project is the expansion of an existing 113.5-acre aggregate mine site and reclamation plan to encompass an additional 356 acres for a total of 469.5 acres. 178 acres of the total will be preserved as habitat for desert tortoise and other species. The plan includes a new excavation pit, a new lime marination plant, expanded storage capacity, an increase in annual aggregate production from 330,000 tons to 450,000 tons, and a new closure date of 2092. Reclamation activity will be concurrent with the project. At closure, the site would be restored to unirrigated open space, retention basin for flood control, and wildlife habitat.

Contact Information

Alex Meyerhoff
Agency Name
City of Twentynine Palms
Contact Types
Lead/Public Agency


Twentynine Palms
San Bernardino
Cross Streets
Twentynine Palms Highway (Highway 62)
Total Acres
Parcel #
State Highways
29 Palms Airport
1, 6

Notice of Completion

State Review Period Start
State Review Period End
Development Types
Mining (Mineral Sand and Gravel)
Local Actions
General Plan Amendment, Rezone, Use Permit, Reclamation Plan
Project Issues
Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Public Services, Transportation, Vegetation, Wildlife
Reviewing Agencies
Air Resources Board, Major Industrial Projects, California Department of Conservation (DOC), California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Highway Patrol, California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Caltrans, Division of Aeronautics, Department of Fish and Wildlife, Region 6, Department of Toxic Substances Control, Department of Water Resources, Office of Historic Preservation, Resources Agency, Resources, Recycling and Recovery, State Water Resources Control Board, Division of Water Rights, California Native American Heritage Commission (NAHC)
Reviewing Agency Comments
California Native American Heritage Commission (NAHC)

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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